Plant Protection Science, 2023 (vol. 59), issue 1

List of Reviewers 2022Editorial

Editorial Office

Plant Protect. Sci., 2023, 59(1):I-II  

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plantsReview

Victor Funso Agunbiade, Olubukola Oluranti Babalola*

Plant Protect. Sci., 2023, 59(1):1-18 | DOI: 10.17221/61/2022-PPS  

Drought stress is among the significant forms of abiotic stresses that unfavourably affects maize survival as well as the development from germination to maturity. This paper, therefore, reviewed drought stress effects in maize plants and expatiated on the plausible adoptable mitigation measures to employ in curbing these effects as well. Water shortage prompts drought stress that alters the morphological, physiological and biochemical activities in maize plants. The major drought stress implications on the plant’s survival are mostly in the area of altered metabolic functions, including nutrient metabolism, cell membrane integrity, water...

Detection and molecular identification of a 16SrI group phytoplasma associated with sisal purple leafroll diseaseOriginal Paper

Guihua Wang, Weihuai Wu, Jingen Xi, Helong Chen, Chunping He, Ye Li, Jinlong Zheng, John S. Hu, Kexian Yi

Plant Protect. Sci., 2023, 59(1):19-30 | DOI: 10.17221/90/2022-PPS  

Sisal purple leafroll disease (SPLD) is a destructive disease affecting sisal in China, however, its etiology remains unknown. This disease is characterized by purple margins and rolling and yellowing of the leaves. Recently, phytoplasma was found to be present in SPLD-affected sisal according to PCR assay. To further verify the presence of phytoplasma, determine its association with SPLD and identify the possible pathogenic phytoplasma infecting sisal, 80 symptomatic and 65 asymptomatic sisal samples were collected from the main sisal farms in three Chinese provinces, including Hainan, Guangdong and Guangxi provinces, from 2018 to 2021. PCR assays...

Genetic diversity and pathotype profiling of Xanthomonas oryzae pv. oryzae isolates from diverse rice growing ecosystems of Karnataka state of IndiaOriginal Paper

Adke Raghunandana, Devanna Pramesh, Gururaj Sunkad, Chittaragi Amoghavarsha, Manoj K. Yadav, Umakanta Ngangkham, H.D. Pushpa, M.K. Prasannakumar, B.T. Raghavendra, Harischandra R. Naik, Siddepalli E. Manjunatha, S.T Yenjerappa

Plant Protect. Sci., 2023, 59(1):31-47 | DOI: 10.17221/76/2022-PPS  

Bacterial leaf blight (BLB) disease of rice caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the significant constraints for rice production. A study was carried out to analyze the virulence, genetic diversity, and population structure of Xoo isolates collected from different rice ecosystems of Karnataka, India. The taxonomic identity of all 54 isolates was confirmed using a Xoo-specific PCR assay. The virulence assay on a set of twenty-eight near-isogenic differentials identified nine pathotype groups (KPthX-1 to KPthX-9). Among them, KPthX-6 was highly virulent, whereas KPthx-2 was less virulent. Differentials with...

Comparison of the shoot and blossom susceptibility of European and Asian pear cultivars to fire blight across different conditionsOriginal Paper

Iveta Pánková*, Václav Krejzar, Simona Buchtová, Radka Krejzarová

Plant Protect. Sci., 2023, 59(1):48-58 | DOI: 10.17221/55/2022-PPS  

The susceptibility of 14 pear cultivars to the bacterium Erwinia amylovora, the causal agent of fire blight disease, was evaluated using three different methods of in vivo inoculation – the leaf inoculation method on detached shoots of pear cultivars in a climate chamber, and the terminal shoot and blossom inoculation methods on potted trees of the same pear cultivars in a net house. The results of the artificial inoculations of the European and Asian pear cultivars were compared using the susceptibility score scale, as well as the ANOVA and post hoc methods. The differences among the pear cultivar susceptibility increased...

Characterisation of the HbSnRK2 gene family members and revealing specific HbSnRK2.2 functions in the stress resistance of the rubber treeOriginal Paper

Yu Zhang, Mingyang Liu, Dong Zhang, Meng Wang, Lifeng Wang

Plant Protect. Sci., 2023, 59(1):59-72 | DOI: 10.17221/48/2022-PPS  

SNF1-related protein kinase (SnRK2) is a critical positive regulatory factor in the abscisic acid (ABA) signalling pathway. However, the roles of the HbSnRK2 gene family members in the rubber tree, especially in response to stress, have not been thoroughly characterised. Here, we cloned six HbSnRK2 genes from the rubber tree. Based on the phylogenetic analysis, the HbSnRK2 family genes were divided into three groups. The motifs and intron numbers of HbSnRK2 were conserved. Analysis of cis-regulatory element sequences of all HbSnRK2 genes identified ABRE and TC-rich elements in the prompter of all the HbSnRK2 genes,...

Endophytic fungi and their potential in controlling white root disease of cashewOriginal Paper

Fitra Parlindo, Suryo Wiyono, Efi Toding Tondok

Plant Protect. Sci., 2023, 59(1):73-91 | DOI: 10.17221/134/2021-PPS  

White root disease is a significant disease of cashew caused by Rigidoporus sp. Five endophytic fungal isolates, namely AR31D (Fusarium proliferatum), AR42D (Penicillium citrinum), BR32C (Trichoderma asperellum), VNTB1 (Chaetomium sp.), and EAGS14 (Curvularia lunata), were assessed as the biocontrol agents against Rigidoporus sp. in vitro and in planta. The research objective was to obtain endophytic fungi that effectively control Rigidoporus sp. and their mechanisms. The in vitro test results showed that all isolates could inhibit Rigidoporus sp. and promote plant...

Morphological and molecular characterization of Neoscytalidium isolates that cause canker and dieback in Eucalyptus and Chinaberry trees in IraqOriginal Paper

Dleen Naji Abdulrahman, Raed A. Haleem

Plant Protect. Sci., 2023, 59(1):92-105 | DOI: 10.17221/82/2022-PPS  

Neoscytalidium Dimidiatum isolates are the most pathogens associated with sooty canker and dieback in the stem and twigs of Eucalyptus and Chinaberry trees in the Kurdistan region of Iraq. Young trees showed branch dieback and yellowing leaves. The symptoms were further developed to sooty canker and dieback appeared on the main branch and trunk. N. dimidiatum colonies on potato dextrose agar were dense white at first and became dark gray to black within seven to ten days. Arthric dark brown conidia (6.6x 4.3 µm) were observed in the chain of mycelium. The color of the colonies was white at the beginning, then eventually turned...