Plant Protect. Sci., 2022, 58(2):92-109 | DOI: 10.17221/42/2021-PPS

Use of metalaxyl against some soil plant pathogens of the class Peronosporomycetes - A review and two case studiesReview

Matěj Pánek ORCID...*,1, Asad Ali ORCID...2, Štěpán Helmer ORCID...1
1 Crop Research Institute, Prague, Czech Republic
2 Czech University of Life Sciences Prague, Prague, Czech Republic

Upon its discovery and implementation in plant protection, metalaxyl became one of the most important fungicides against Phytophthora infestans, but its efficiency has also been proven against other soil pathogens of the class Peronosporomycetes. The most important genus - Phytophthora comprises more than 150 plant pathogens, which cause significant losses in crop production or damage to natural plant associations. Many species of related genera Pythium, Phytopythium and Globisporangium have a similar ability as the species of Phytophthora. Those pathogens are able to quickly spread in wet soils by actively movable zoospores or in the air by means of zoosporangia; they are able to persist in an environment for long periods once they are introduced into the locality, having durability from their resting structures (chlamydospores, hyphal swelling and oospores). Metalaxyl has proven to be very efficient against these pathogens. However, shortly after its release, the rapid development of resistance against this compound was recorded in many species of the class Peronosporomycetes. Such easily developed resistance is due to the monogenic nature of the resistance, which also determines any anti-resistant strategies. The solution of this issue rests in the cautious use of metalaxyl, with consideration given to these strategies, and should be based also on precise information about the environment and the present pathogenic agents.

Keywords: phenylamide fungicide; resistance; Phytophthora; strawberry

Published: March 28, 2022  Show citation

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Pánek M, Ali A, Helmer Š. Use of metalaxyl against some soil plant pathogens of the class Peronosporomycetes - A review and two case studies. Plant Protect. Sci. 2022;58(2):92-109. doi: 10.17221/42/2021-PPS.
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References

  1. Abad Z.G., Abad J.A., Coffey M.D., Oudemans P.V., Man in 't Veld W.A., De Gruyter H., Cunnington J., Louws F.J. (2008): Phytophthora bisheria sp. nov., a new species identified in isolates from the rosaceous raspberry, rose and strawberry in three continents. Mycologia, 100: 99-110. Go to original source... Go to PubMed...
  2. Adaskaveg J.E., Gubler D., Michailides T. (2017): Fungicides, Bactericides, and Biologicals for Deciduous Tree Fruit, Nut, Strawberry, and Vine Crops. Riverside, University of California.
  3. Bagirova S.F., Li A.Z., Dolgova A.V., Elansky S.N., Shaw D.S., Dyakov Y.T. (2001): Mutants of Phytophthora infestans resistant to dimethomorph fungicide. Journal of Russian Phytopathological Society, 2: 19-24.
  4. Bala K., Robideau G.P., Lévesque C.A., de Cock A.W.A.M., Abad Z.G., Lodhi A.M., Shahzad S., Ghaffar A., Coffey M.D. (2010): Phytopythium Abad, de Cock, Bala, Robideau, Lodhi & Lévesque, gen. nov. and Phytopythium sindhum Lodhi, Shahzad & Lévesque, sp. nov. Persoonia, 24: 137. doi: 10.3767/003158510X512748 Go to original source... Go to PubMed...
  5. Barboza E.A., Fonseca M.E.N., Boiteux L.S., Reis A. (2017): First worldwide report of a strawberry fruit rot disease caused by Phytophthora capsici isolates. Plant Disease, 101: 259. doi: 10.1094/PDIS-06-16-0864-PDN Go to original source...
  6. Barriuso J., Hogan D.A., Keshavarz T., Martínez M.J. (2018): Role of quorum sensing and chemical communication in fungal biotechnology and pathogenesis. FEMS Microbiology Reviews, 42: 627-638. Go to original source... Go to PubMed...
  7. Benfradj N., Migliorini D., Luchi N., Santini A., BoughallebM'Hamdi N. (2017): Occurrence of Pythium and Phytopythium species isolated from citrus trees infected with gummosis disease in Tunisia. Archives of Phytopathology and Plant Protection, 50: 286-302. Go to original source...
  8. Bergquist R.R. (1974): Effect of fungicide rate, spray interval, timing of spray application, and precipitation in relation to control of Phytophthora leaf blight of taro. Annals of Botany, 38: 213-221. Go to original source...
  9. Bertier L., Leus L., D'hondt L., de Cock A.W.A.M., Höfte M. (2013): Host adaptation and speciation through hybridization and polyploidy in Phytophthora. PLoS One, 8: e85385. doi: 10.1371/journal.pone.0085385 Go to original source... Go to PubMed...
  10. Bhat R.G., McBlain B.A., Schmitthenner A.F. (1993): The inheritance of resistance to metalaxyl and to fluorophenylalanine in matings of homothallic Phytophthora sojae. Mycological Research, 97: 865-870. Go to original source...
  11. Bourke P.M.A. (1964): Emergence of potato blight, 1843-46. Nature, 203: 805-808. Go to original source...
  12. Brantner J.R., Windels C.E. (1998): Variability in sensitivity to metalaxyl in vitro, pathogenicity, and control of Pythium spp. on sugar beet. Plant Disease, 82: 896-899. Go to original source... Go to PubMed...
  13. Brasier C.M., Cooke D.E.L., Duncan J.M. (1999): Origin of a new Phytophthora pathogen through interspecific hybridization. Proceedings of the National Academy of Sciences of the United States of America, 96: 5878-5883. Go to original source... Go to PubMed...
  14. Brent K.J., Hollomon D.W. (2007): Fungicide Resistance in Crop Pathogens: How Can It Be Managed? Brussels, Fungicide Resistance Action Committee.
  15. Broders K.D., Lipps P.E., Paul P.A., Dorrance A.E. (2007): Characterization of Pythium spp. associated with corn and soybean seed and seedling disease in Ohio. Plant Disease, 91: 727-735. Go to original source... Go to PubMed...
  16. Bruck R.I., Fry W.E., Apple A.E. (1980): Effect of metalaxyl, an acylanine fungicide, on developmental stages of Phytophthora infestans. Phytopathology, 70: 597-601. Go to original source...
  17. Burgess T.I. (2015): Molecular characterization of natural hybrids formed between five related indigenous clade 6 Phytophthora species. PLoS One, 10: e0134225. doi: 10.1371/journal.pone.0134225 Go to original source... Go to PubMed...
  18. Chabane K., Leroux P., Bompeix G., Maia N. (1996): Dimethomorph and metalaxyl sensitivity in somatic hybrids of Phytophthora parasitica obtained by protoplast fusion. Phytopathologia Mediteranea, 35: 111-116.
  19. Chen F., Zhou Q., Xi J., Li D., Schnabel G., Zhan J. (2018): Analysis of RPA190 revealed multiple positively selected mutations associated with metalaxyl resistance in Phytophthora infestans. Pest Management Science, 74: 1916-1924. Go to original source... Go to PubMed...
  20. Choudhary C.E., Burgos-Garay M.L., Moorman G.W., Hong C. (2016): Pythium and Phytopythium species in two Pennsylvania greenhouse irrigation water tanks. Plant Disease, 100: 926-932. Go to original source... Go to PubMed...
  21. Cohen Y., Samoucha Y. (1990): Competition between oxadixyl-sensitive and -resistant field isolates of Phytophthora infestans on fungicide-treated potato crops. Crop Protection, 9: 15-20. Go to original source...
  22. Cohen Y., Reuveni M., Eyal H. (1979): The systemic antifungal activity of ridomil against Phytophthora infestans on tomato plants. Phytopathology, 69: 645-649. Go to original source...
  23. Cooke L.R. (1992): Resistance to phenylamide fungicides: Strategies and their evaluation. In: Denholm I., Devonshire A.L., Hollomon D.W. (eds). Resistance '91: Achievements and Developments in Combating Pesticide Resistance. Dordrecht, Springer: 100-111. Go to original source...
  24. Crute I.R. (1992): The contribution of genetic studies to understanding fungicide resistance. In: Denholm I., Devonshire A.L., Hollomon D.W. (eds). Resistance '91: Achievements and Developments in Combating Pesticide Resistance. Dordrecht, Springer: 190-202. Go to original source...
  25. Daggett S.S. (1993): Phenotypic changes in populations of Phytophthora infestans from Eastern Germany. Phytopathology, 83: 319-323. Go to original source...
  26. Darvas J., Becker O. (1984): Failure to control Phytophthora cinnamomi and Pythium splendens with metalaxyl after its prolonged use. South African Avocado Growers' Association Yearbook, 7: 77-78.
  27. Davidse L.C. (1985): Resistance to acylalanines in Phytophthora infestans in The Netherlands. EPPO Bulletin, 15: 403-409. Go to original source...
  28. Davidse L.C. (1995): Phenylamide fungicides: Biochemical action and resistance. In: Lyr H. (ed.). Modern Selective Fungicides. Jena, Gustav Fischer: 347-354.
  29. Davidse L.C., Looijen D., Turkensteen L.J., van der Wal D. (1981): Occurrence of metalaxyl-resistant strains of Phytophthora infestans in Dutch potato fields. Netherlands Journal of Plant Pathology, 87: 65-68. Go to original source...
  30. Davidse L.C., Danial D.L., van Westen C.J. (1983): Resistance to metalaxyl in Phytophthora infestans in the Netherlands. Netherlands Journal of Plant Pathology, 89: 1-20. Go to original source...
  31. Davidse L.C., Gerritsma O.C.M., Ideler J., Pie K., Velthuis G.C.M. (1988): Antifungal modes of action of metalaxyl, cyprofuram, benalaxyl and oxadixyl in phenylamide-sensitive and phenylamide-resistant strains of Phytophthora megasperrna f. sp. medicaginis and Phytophthora infestans. Crop Protection, 7: 347-355. Go to original source...
  32. Davis R.P., Dennis C. (1981): Properties of dicarboximide resistant strains of Botrytis cinerea. Pesticide Science, 12: 521-528. Go to original source...
  33. De Cock A.W.A.M., Lodhi A.M., Rintoul T.L., Bala K., Robideau G.P., Abad Z.G., Coffey M.D., Shahzad S., Lévesque C.A. (2015): Phytopythium: Molecular phylogeny and systematics. Persoonia, 34: 25-39. Go to original source... Go to PubMed...
  34. Delmas C.E.L., Mazet I.D., Jolivet J., Delière L., Delmotte F. (2014): Simultaneous quantification of sporangia and zoospores in a biotrophic oomycete with an automatic particle analyzer: Disentangling dispersal and infection potentials. Journal of Microbiological Methods, 107: 169-175. Go to original source... Go to PubMed...
  35. Eden M.A., Hill R.A. (1998): First record of Pythium mastophorum in New Zealand and its pathogenicity relative to other Pythium spp. New Zealand Journal of Crop and Horticultural Science, 26: 253-256. Go to original source...
  36. Eikemo H., Stensvand A., Tronsmo A.M. (2000): Evaluation of methods of screening strawberry cultivars for resistance to crown rot caused by Phytophthora cactorum. Annals of Applied Biology, 137: 237-244. Go to original source...
  37. Ellis M.A., Grove G.G., Ferree D.C. (1982): Effects of metalaxyl on Phytophthora cactorum and collar rot of apple. Phytopathology, 72: 1431-1434. Go to original source...
  38. Erwin D.C., Ribeiro O.K. (1996): Phytophthora diseases worldwide. St Paul, The American Phytopathological Society.
  39. Fang X.L., Phillips D., Li H., Sivasithamparam K., Barbetti M.J. (2011): Severity of crown and root diseases of strawberry and associated fungal and Oomycete pathogens in Western Australia. Australasian Plant Pathology, 40: 109-119. Go to original source...
  40. Farih A., Tsao P.H., Menge J.A. (1981): In vitro effects of metalaxyl on growth, sporulation, and germination of Phytophthora parasitica and P. citrophthora. Plant Disease, 65: 651-654. Go to original source...
  41. Fry W.E., Goodwin S.B., Dyer A.T., Matuszak J.M., Drenth A., Tooley P.W., Sujkowski L.S., Koh Y.J., Cohen B.A., Spielman L.J., Deahl K.L., Inglis D.A., Sandlan K.P. (1993): Historical and recent migrations of Phytophthora infestans: Chronology, pathways, and implications. Plant Disease, 77: 653-661. Go to original source...
  42. Fuller M.S., Gisi U. (1985): Comparative studies of the in vitro activity of the fungicides oxadixyl and metalaxyl. Mycologia, 77: 424-439. Go to original source...
  43. Garcia-Rubio R., Cuenca-Estrella M., Mellado E. (2017): Triazole resistance in Aspergillus species: An emerging problem. Drugs, 77: 599-613. Go to original source... Go to PubMed...
  44. Garzón C.D., Geiser D.M., Moorman G.W. (2005): Diagnosis and population analysis of Pythium species using AFLP fingerprinting. Plant Disease, 89: 81-89. Go to original source... Go to PubMed...
  45. Georgopoulos S.G. (1985): The genetic basis of classification of fungicides according to resistance risk. EPPO Bulletin, 15: 513-517. Go to original source...
  46. Gisi U. (2007): Chemical control of downy mildews. In: Spencer-Phillips P.T.N., Gisi U., Lebeda A. (eds). Advances in Downy Mildew Research. Dordrecht, Springer: 119-159. Go to original source...
  47. Gisi U., Cohen Y. (1996): Resistance to phenylamide fungicides: A case study with Phytophthora infestans involving mating type and race structure. Annual Review of Phytopathology, 34: 549-572. Go to original source... Go to PubMed...
  48. Gisi U., Sierotzki H. (2008): Fungicide modes of action and resistance in downy mildews. European Journal of Plant Pathology, 122: 157-167. Go to original source...
  49. Gisi U., Chin K.M., Knapova G., Küng Färber R., Mohr U., Parisi S., Sierotzki H., Steinfeld U. (2000): Recent developments in elucidating modes of resistance to phenylamide, DMI and strobilurin fungicides. Crop Protection, 19: 863-872. Go to original source...
  50. Goodwin S.B., McGrath M.T. (1995): Insensitivity to metalaxyl among isolates of Phytophthora erythroseptica causing pink rot of potato in New York. Plant Disease, 79: 967. doi: 10.1094/PD-79-0967D Go to original source...
  51. Goodwin S.B., Cohen B.A., Fry W.E. (1994): Panglobal distribution of a single clonal lineage of the Irish potato famine fungus. Proceedings of the National Academy of Sciences of the United States of America, 91: 11591-11595. Go to original source... Go to PubMed...
  52. Goodwin S.B., Sujkowski L.S., Fry W.E. (1996): Widespread distribution and probably origin of resistance to metalaxyl in clonal genotypes of Phytopthora infestans in the United States and Western Canada. Ecology and Epidemiology, 86: 793-800. Go to original source...
  53. Grünwald N.J., Sturbaum A.K., Montes G.R., Serrano E.G., Lozoya-Saldaña H., Fry W.E. (2006): Selection for fungicide resistance within a growing season in field populations of Phytophthora infestans at the center of origin. Phytopathology, 96: 1397-1403. Go to original source... Go to PubMed...
  54. Hill S.N., Hausbeck M.K. (2008): Virulence and fungicide sensitivity of Phytophthora cactorum isolated from American ginseng gardens in Wisconsin and Michigan. Plant Disease, 92: 1183-1189. Go to original source... Go to PubMed...
  55. Hobbelen P.H.F., Paveley N.D., van den Bosch F. (2014): The emergence of resistance to fungicides. PLoS One, 9: e91910. doi: 10.1371/journal.pone.0091910 Go to original source... Go to PubMed...
  56. Hu J., Li Y. (2014): Inheritance of mefenoxam resistance in Phytophthora nicotianae populations from a plant nursery. European Journal of Plant Pathology, 139: 545-555. Go to original source...
  57. Huzar-Novakowiski J., Dorrance A.E. (2018): Genetic diversity and population structure of Pythium irregulare from soybean and corn production fields in Ohio. Plant Disease, 102: 1989-2000. Go to original source... Go to PubMed...
  58. Ioos R., Andrieux A., Marçais B., Frey P. (2006): Genetic characterization of the natural hybrid species Phytophthora alni as inferred from nuclear and mitochondrial DNA analyses. Fungal Genetics and Biology, 43: 511-529. Go to original source... Go to PubMed...
  59. Irzykowska L., Irzykowski W., Jarosz A., Golebniak B. (2005): Association of Phytophthora citricola with leather rot disease of strawberry. Journal of Phytopathology, 153: 680-685. Go to original source...
  60. Ishiguro Y., Otsubo K., Watanabe H., Suzuki M., Nakayama K., Fukuda T., Fujinaga M., Suga H., Kageyama K. (2014): Root and crown rot of strawberry caused by Pythium helicoides and its distribution in strawberry production areas of Japan. Journal of General Plant Pathology, 80: 423-429. Go to original source...
  61. Jackson K.L., Yin J., Ji P. (2012): Sensitivity of Phytophthora capsici on vegetable crops in Georgia to mandipropamid, dimethomorph, and cyazofamid. Plant Disease, 96: 1337-1342. Go to original source... Go to PubMed...
  62. Jansen J.P., Lauvaux S., Gruntowy J., Denayer J. (2017): Possible synergistic effects of fungicide-insecticide mixtures on beneficial arthropods. Pesticides and Beneficial Organisms IOBC-WPRS Bulletin, 125: 28-35.
  63. Jeffers S.N., Aldwinckle H.S. (1987): Enhancing detection of Phytophthora cactorum in naturally infested soil. Phytopathology, 77: 1475-1482. Go to original source...
  64. Jeffers S.N., Schnabel G., Smith J.P. (2004): First report of resistance to mefenoxam in Phytophthora cactorum in the United States and elsewhere. Plant Disease, 88: 576. doi: 10.1094/PDIS.2004.88.5.576A Go to original source... Go to PubMed...
  65. Jeong S.Y., Lee C.H., Yi T., Kim T.G. (2020): Effects of quorum quenching on biofilm metacommunity in a membrane bioreactor. Microbial Ecology, 79: 84-97. Go to original source... Go to PubMed...
  66. Joseph M.C., Coffey M.D. (1984): Development of laboratory resistance to metalaxyl in Phytophthora citricola. Phytopathology, 74: 1411-1414. Go to original source...
  67. Kato S., Coe R., New L., Dick M.W. (1990): Sensitivities of various Oomycetes to hymexazol and metalaxyl. Microbiology, 136: 2127-2134. Go to original source...
  68. Kong P., Tyler B.M., Richardson P.A., Lee B.W.K., Zhou Z.S., Hong C. (2010): Zoospore interspecific signaling promotes plant infection by Phytophthora. BMC Microbiology, 10: 313. doi: 10.1186/1471-2180-10-313 Go to original source... Go to PubMed...
  69. Lebert H., Cohn F. (1870): Über die Fäule der Cactusstämme. Beiträge zur Biologie der Pflanzen, 1: 51-57. German.
  70. Lucas J.A., Greer G., Oudemans P.V., Coffey M.D. (1990): Fungicide sensitivity in somatic hybrids of Phytophthora capsici obtained by protoplast fusion. Physiological and Molecular Plant Pathology, 36: 175-187. Go to original source...
  71. Mackrill J.J., Kehoe R.A., Zheng L., McKee M.L., O'Sullivan E.C., Prestwich B.M.D., McCarthy F.O. (2020): Inhibitory properties of aldehydes and related compounds against Phytophthora infestans - Identification of a new lead. Pathogens, 9: 542. doi: 10.3390/pathogens9070542 Go to original source... Go to PubMed...
  72. Malajczuk N., Boughton T.J., Campbell N.A., Litchfield R.T. (1983): Interaction between the fungicide metalaxyl and soil microorganisms on survival of Phytophthora cinnamomi. Annals of Applied Biology, 103: 57-61. Go to original source...
  73. Maridueña-Zavala M.G., Freire-Peñaherrera A., CevallosCevallos J.M., Peralta E.L. (2017): GC-MS metabolite profiling of Phytophthora infestans resistant to metalaxyl. European Journal of Plant Pathology, 149: 563-574. Go to original source...
  74. Marin M.V., Seijo T., Mertely J., Peres N.A. (2019): First report of crown rot caused by Phytopythium helicoides on strawberry in the Americas. Plant Disease, 103: 2696. doi: 10.1094/PDIS-03-19-0658-PDN Go to original source...
  75. Martin F.N. (1999): Strawberry root rot and the recovery of Pythium and Rhizoctonia spp. In: Proceedings of Annual International Conference on Methyl Bromide: Alternatives and Emissions Reduction, November 1-4, 1999, San Diego, California: 1-3.
  76. Matheron M.E., Porchas M. (2000): Impact of azoxystrobin, dimethomorph, fluazinam, fosetyl-Al, and metalaxyl on growth, sporulation, and zoospore cyst germination of three Phytophthora spp. Plant Disease, 84: 454-458. Go to original source... Go to PubMed...
  77. Matson M.E.H., Small I.M., Fry W.E., Judelson H.S. (2015): Metalaxyl resistance in Phytophthora infestans: Assessing role of RPA190 gene and diversity within clonal lineages. Phytopathology, 105: 1594-1600. Go to original source... Go to PubMed...
  78. Mazzola M., Andrews P.K., Reganold J.P., Lévesque C.A. (2002): Frequency, virulence, and metalaxyl sensitivity of Pythium spp. isolated from apple roots under conventional and organic production systems. Plant Disease, 86: 669-675. Go to original source... Go to PubMed...
  79. Middleton J.T. (1943): The taxonomy, host range and geographic distribution of the genus Pythium. Memoirs of the Torrey Botanical Club, 20: 1-171.
  80. Mir A.A., Park S.Y., Sadat M.A., Kim S., Choi J., Jeon J., Lee Y.H. (2015): Systematic characterization of the peroxidase gene family provides new insights into fungal pathogenicity in Magnaporthe oryzae. Scientific Reports, 5: 11831. doi: 10.1038/srep11831 Go to original source... Go to PubMed...
  81. Molina L., Constantinescu F., Michel L., Reimmann C., Duffy B., Défago G. (2003): Degradation of pathogen quorum-sensing molecules by soil bacteria: A preventive and curative biological control mechanism. FEMS Microbiology Ecology, 45: 71-81. Go to original source... Go to PubMed...
  82. Montes M.S., Nielsen B.J., Schmidt S.G., Bødker L., Kjøller R., Rosendahl S. (2016): Population genetics of Phytophthora infestans in Denmark reveals dominantly clonal populations and specific alleles linked to metalaxyl-M resistance. Plant Pathology, 65: 744-753. Go to original source...
  83. Morton H.V., Urech P.A. (1988): History of development of resistance to phenylamide fungicides. In: Delp C.S. (ed.). Fungicide Resistance in North America. St. Paul, APS Press: 59-60.
  84. Mouden N., Benkirane R., Ouazzani Touhami A., Douira A. (2016): Fungal species associated with collapsed strawberry plants cultivated in strawberries plantations in Morocco. International Journal of Current Research, 8: 29108-29117.
  85. Nagel J.H., Gryzenhout M., Slippers B., Wingfield M.J., Hardy G.E.S.J., Stukely M.J.C., Burgess T.I. (2013): Characterization of Phytophthora hybrids from ITS clade 6 associated with riparian ecosystems in South Africa and Australia. Fungal Biology, 117: 329-347. Go to original source... Go to PubMed...
  86. Olson Å., Stenlid J. (2002): Pathogenic fungal species hybrids infecting plants. Microbes and Infection, 4: 1353-1359. Go to original source... Go to PubMed...
  87. Pánek M., Fér T., Mráček J., Tomšovský M. (2016): Evolutionary relationships within the Phytophthora cactorum species complex in Europe. Fungal Biology, 120: 836-851. Go to original source... Go to PubMed...
  88. Pánek M., Střížková I., Zouhar M., Kudláček T., Tomšovský M. (2021a): Mixed-mating model of reproduction revealed in European Phytophthora cactorum by ddRADseq and effector gene sequence data. Microorganisms, 9: 345. doi: 10.3390/microorganisms9020345 Go to original source... Go to PubMed...
  89. Pánek M., Hanáček A., Wenzlová J., Maňasová M., Zouhar M. (2021b): A comparison of the ability of some commercially produced biological control agents to protect strawberry plants against the plant pathogen Phytophthora cactorum. Agriculture, 11: 1086. doi: 10.3390/agriculture11111086 Go to original source...
  90. Parra G., Ristaino J.B. (2001): Resistance to mefenoxam and metalaxyl among field isolates of Phytophthora capsici causing Phytophthora blight of bell pepper. Plant Disease, 85: 1069-1075. Go to original source... Go to PubMed...
  91. Patel N., Desa P., Patel N., Jha A., Gautam H.K. (2014): Agronanotechnology for plant fungal disease management: A review. International Journal of Current Microbiology and Applied Sciences, 3: 71-84.
  92. Porter L.D., Hamm P.B., David N.L., Gieck S.L., Miller J.S., Gundersen B., Inglis D.A. (2009): Metalaxyl-M-resistant Pythium species in potato production areas of the Pacific Northwest of the U.S.A. American Journal of Potato Research, 86: 315-326. Go to original source...
  93. Rahman M.Z., Uematsu S., Takeuchi T., Shirai K., Ishiguro Y., Suga H., Kageyama K. (2014): Two new species, Phytophthora nagaii sp. nov. and P. fragariaefolia sp. nov., causing serious diseases on rose and strawberry plants, respectively, in Japan. Journal of General Plant Pathology, 80: 348-365. Go to original source...
  94. Randall E., Young V., Sierotzki H., Scalliet G., Birch P.R.J., Cooke D.E.L., Csukai M., Whisson S.C. (2014): Sequence diversity in the large subunit of RNA polymerase I contributes to mefenoxam insensitivity in Phytophthora infestans. Molecular Plant Pathology, 15: 664-676. Go to original source... Go to PubMed...
  95. Rani D.V., Sudini H. (2013): Management of soilborne diseases in crop plants: An overview. International Journal of Plant, Animal and Environmental Sciences, 3: 156-164.
  96. Raymond M., Callaghan A., Fort P., Pasteur N. (1991): Worldwide migration of amplified insecticide resistance genes in mosquitoes. Nature, 350: 151-153. Go to original source... Go to PubMed...
  97. Reeleder R.D., Miller J., Capell B., Schooley J. (2007): Mefenoxam sensitivity and the impact of fumigation on Pythium species and Phytophthora cactorum in ginseng soils. Canadian Journal of Plant Pathology, 29: 427-436. Go to original source...
  98. Rekanović E., Potočnik I., Milijašević-Marčić S., Stepanović M., Todorović B., Mihajlović M. (2012): Toxicity of metalaxyl, azoxystrobin, dimethomorph, cymoxanil, zoxamide and mancozeb to Phytophthora infestans isolates from Serbia. Journal of Environmental Science and Health, Part B, Pesticides, Food Contaminants, and Agricultural Wastes, 47: 403-409. Go to original source... Go to PubMed...
  99. Reuveni M., Eyal H., Cohen Y. (1980): Development of resistance to metalaxyl in Pseudoperonospora cubensis. Plant Disease, 64: 1108-1109. Go to original source...
  100. Richards T.A., Talbot N.J. (2007): Plant parasitic Oomycetes such as Phytophthora species contain genes derived from three eukaryotic lineages. Plant Signaling & Behavior, 2: 112-114. Go to original source... Go to PubMed...
  101. Richards T.A., Soanes D.M., Jones M.D.M., Vasieva O., Leonard G., Paszkiewicz K., Foster P.G., Hall N., Talbot N. J. (2011): Horizontal gene transfer facilitated the evolution of plant parasitic mechanisms in the Oomycetes. Proceedings of the National Academy of Sciences, 108: 15258-15263. Go to original source... Go to PubMed...
  102. Rieger P.H., Liermann J.C., Opatz T., Anke H., Thines E. (2010): Caripyrin, a new inhibitor of infection-related morphogenesis in the rice blast fungus Magnaporthe oryzae. Journal of Antibiotics, 63: 285-289. Go to original source... Go to PubMed...
  103. Russell P.E. (1995): Fungicide resistance: Occurrence and management. The Journal of Agricultural Science, 124: 317-323. Go to original source...
  104. Rytkönen A., Lilja A., Vercauteren A., Sirkiä S., Parikka P., Soukainen M., Hantula J. (2012): Identity and potential pathogenicity of Phytophthora species found on symptomatic Rhododendron plants in a Finnish nursery. Canadian Journal of Plant Pathology, 34: 255-267. Go to original source...
  105. Sanders P.L. (1984): Failure of metalaxyl to control Pythium blight on turfgrass in Pennsylvania. Plant Disease, 68: 776-777. Go to original source...
  106. Schwinn F., Staub T. (1995): Phenylamides and other fungicides against Oomycetes. In: Lyr H. (ed.). Modern Selective fungicides. Jena, Gustav Fischer: 323-346.
  107. Schwinn F., Staub T., Urech P. (1977): Die Bekämpfung Falscher Mehltau-Krankheiten mit einem neuen Wirkstoff aus der Gruppe der Acylalanine. In: 41. Deutsche PflanzenschutzTagung, October 10-14, 1977, Münster: 145-146. German.
  108. Shattock R.C. (1988): Studies on the inheritance of resistance to metalaxyl in Phytophthora infestans. Plant Pathology, 37: 4-11. Go to original source...
  109. Shennan C., Muramoto J., Koike S., Baird G., Fennimore S., Samtani J., Bolda M., Dara S., Daugovish O., Lazarovits G., Butler D., Rosskopf E., Kokalis-Burelle N., Klonsky K., Mazzola M. (2018): Anaerobic soil disinfestation is an alternative to soil fumigation for control of some soilborne pathogens in strawberry production. Plant Pathology, 67: 51-66. Go to original source...
  110. Staub T., Sozzi D. (1984): Fungicide resistance. Plant Disease, 68: 1026-1031. Go to original source...
  111. Staub T.H., Dahmen H., Schwinn F.J. (1980): Einfluß von Ridomil auf die Entwicklung von Plasmopara viticola und Phytophthora infestans auf ihren Wirtspflanzen. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz, 87: 83-91. German.
  112. Suzui T., Makino T., Ogoshi A. (1980): Phytophthora rot of strawberry caused by Phytophthora nicotianae var. parasitica in Shizuoka. Japanese Journal of Phytopathology, 46: 169-178. Go to original source...
  113. Takeda F. (1999): Strawberry production in soilless culture systems. Acta Horticulturae, 481: 289-296. Go to original source...
  114. Tao Y., Zeng F., Ho H., Wei J., Wu Y., Yang L., He Y. (2011): Pythium vexans causing stem rot of Dendrobium in Yunnan province, China. Journal of Phytopathology, 159: 255-259. Go to original source...
  115. Taylor R.J., Salas B., Secor G.A., Rivera V., Gudmestad N.C. (2002): Sensitivity of North American isolates of Phytophthora erythroseptica and Pythium ultimum to mefenoxam (metalaxyl). Plant Disease, 86: 797-802. Go to original source... Go to PubMed...
  116. Thomidis T. (2002): Persistence of the systemic activity of metalaxyl and fosetyl-Al applied as a soil drench or foliar spray to control Phytophthora crown rot of peach. Phytopathologia Mediterranea, 41: 28-32.
  117. Timmer L.W., Graham J.H., Zitko S.E. (1998): Metalaxylresistant isolates of Phytophthora nicotianae: Occurrence, sensitivity, and competitive parasitic ability on citrus. Plant Disease, 82: 254-261. Go to original source... Go to PubMed...
  118. Titone P., Mocioni M., Garibaldi A., Gullino M.L. (2009): Fungicide failure to control Pythium blight on turf grass in Italy. Journal of Plant Diseases and Protection, 116: 55-59. Go to original source...
  119. Toljamo A.R., Granlund L.J., Kokko H.I. (2017): DNA barcode identification and virulence testing of Phytophthora spp. and Pythium spp. isolated from soil of strawberry fields. Acta Horticulturae, 1156: 727-733. Go to original source...
  120. Tsao P.H. (1983): Factors affection isolation and quantitation of Phytophthora from soil. In: Erwin D.C., BartnickiGarcia S., Tsao P.H. (eds). Phytophthora: Its Biology, Taxonomy, Ecology and Pathology. St Paul, The American Phytopathological Society: 219-236.
  121. Urech P.A., Staub T. (1985): The resistance strategy for acylalanine fungicides. EPPO Bulletin, 15: 539-543. Go to original source...
  122. Urech P.A., Schwinn F., Staub T. (1977): CGA 48988, a novel fungicide for the control of late blight, downy mildews and related soil borne diseases. In: Proceedings of the British Crop Protection Conference, November 21-24, 1977, Brighton: 623-631.
  123. Utkhede R.S., Gupta V.K. (1988): In vitro selection of strains of Phytophthora cactorum resistant to metalaxyl. Journal of Phytopathology, 122: 35-44. Go to original source...
  124. Utkhede R.S., Smith E.M. (1993): Long-term effects of chemical and biological treatments on crown and root rot of apple trees caused by Phytophthora cactorum. Soil Biology and Biochemistry, 25: 383-386. Go to original source...
  125. Uzuhashi S., Kakishima M., Tojo M. (2010): Phylogeny of the genus Pythium and description of new genera. Mycoscience, 51: 337-365. Go to original source...
  126. Van den Bosch F., Paveley N., van den Berg F., Hobbelen P., Oliver R. (2014): Mixtures as a fungicide resistance management tactic. Phytopathology, 104: 1264-1273. Go to original source... Go to PubMed...
  127. Van der Plaats-Niterink A.J. (1981): Monograph of the genus Pythium. Studies in Mycology, 21: 1-242.
  128. Van Poucke K., Haegeman A., Goedefroit T., Focquet F., Leus L., Jung M.H., Nave C., Redondo M.A., Husson C., Kostov K., Lyubenova A., Christova P., Chandelier A., Slavov S., de Cock A.W.A.M., Bonants P., Werres S., Palau J.O., Marçais B., Jung T., Stenlid J., Ruttink T., Heungens K. (2021): Unravelling hybridization in Phytophthora using phylogenomics and genome size estimation. IMA Fungus, 12: 16. doi: 10.1186/s43008-021-00068-w Go to original source... Go to PubMed...
  129. Villa F., Pitts B., Stewart P.S., Giussani B., Roncoroni S., Albanese D., Giordano C., Tunesi M., Cappitelli F. (2016): Efficacy of zosteric acid sodium salt on the yeast biofilm model Candida albicans. Microbial Ecology, 62: 584-598. Go to original source... Go to PubMed...
  130. Villa F., Cappitelli F., Cortesi P., Kunova A. (2017): Fungal biofilms: Targets for the development of novel strategies in plant disease management. Frontiers in Microbiology, 8: 654. doi: 10.3389/fmicb.2017.00654 Go to original source... Go to PubMed...
  131. Vincelli P. (2014): Some principles of fungicide resistance. Plant Pathology Extension, 1: 123-125.
  132. Wagner S., Kaminski K., Werres S. (2007): Evaluation of fungicides for control of Phytophthora ramorum. In: Proceedings of the Sudden Oak Death Third Science Symposium, Santa Rosa, California, March 5-9, 2007: 481-482.
  133. Wang M., Hua X., Zhang Q., Yang Y., Shi H., Wang M. (2014): Enantioselective degradation of metalaxyl in grape, tomato, and rice plants. Chirality, 27: 109-114. Go to original source... Go to PubMed...
  134. Wang F., Zhou T., Zhu L., Wang X., Wang J., Wang J., Du Z., Li B. (2019): Effects of successive metalaxyl application on soil microorganisms and the residue dynamics. Ecological Indicators, 103: 194-201. Go to original source...
  135. Wang W., Liu X., Han T., Li K., Qu Y., Gao Z. (2020): Differential potential of Phytophthora capsici resistance mechanisms to the fungicide metalaxyl in peppers. Microorganisms, 8: 278. doi: 10.3390/microorganisms8020278 Go to original source... Go to PubMed...
  136. Wang W., Liu D., Zhuo X., Wang Y., Song Z., Chen F., Pan Y., Gao Z. (2021): The RPA190-pc gene participates in the regulation of metalaxyl sensitivity, pathogenicity and growth in Phytophthora capsici. Gene, 764: 145081. doi: 10.1016/j.gene.2020.145081 Go to original source... Go to PubMed...
  137. Watanabe T. (1977): Pathogenicity of Pythium myriotylum isolated from strawberry roots in Japan. Japanese Journal of Phytopathology, 43: 306-309. Go to original source...
  138. Watanabe T., Hashimoto K., Sato M. (1977): Pythium species associated with strawberry roots in Japan, and their role in strawberry stunt dissease. Phytopathology, 67: 1324-1332. Go to original source...
  139. White J., Stanghellini M., Ayoubi L. (1988): Variation in the sensitivity to metalaxyl of Pythium spp. isolated from carrot and other sources. Annals of Applied Biology, 113: 269-277. Go to original source...
  140. White T.J., Bruns T., Lee S., Taylor J. (1990): Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis M.A., Gelfand D.H., Sninsky J.J., White T.J. (eds). PCR Protocols: A Guide to Methods and Applications. New York, NY, Academic Press: 315-322. Go to original source...
  141. Wollgiehn R., Bräutigam E., Schumann B., Erge D. (1984): Wirkung von Metalaxyl auf die Synthese von RNA, DNA und Protein in Phytophthora nicotianae. Zeitschrift für Allgemeine Mikrobiologie, 24: 269-279. German. Go to original source... Go to PubMed...
  142. Zadra C., Marucchini C., Zazzerini A. (2002): Behavior of metalaxyl and its pure R-enantiomer in sunflower plants (Helianthus annus). Journal of Agricultural and Food Chemistry, 50: 5373-5377. Go to original source... Go to PubMed...

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