Chitosan, Methyl Jasmonate, and Silicon Induce Resistance to Angular Leaf Spot in Common Bean, Caused by , with Expression of Defense-Related Genes and Enzyme Activities.

This study assessed the efficacy of chitosan, methyl jasmonate, and silicon in the reduction of disease severity and the induction of defense responses in common bean plants against angular leaf spot caused by The expression level of several pathogenesis-related (PR) proteins, PR1, PR2 (β-1,3-glucanase), and PR3 (chitinase), and defense-related enzymes, phenylalanine ammonia-lyase, peroxidase, and lipoxygenase, was analyzed at different time points in common bean plants after different treatments. Elicitor treatments significantly reduced disease severity 21 days after inoculation, with silicon at a 2 mM concentration proving most effective with 38.93% disease control, followed by 1 mM MeJA and 2% chitosan, respectively.

Molecular phylogeny of plant pathogenic fungi based on start codon targeted (SCoT) polymorphism.

Background: A number of molecular marker systems have been developed to assess genetic diversity, carry out phylogenetic analysis, and diagnose and discriminate plant pathogenic fungi. The start codon targeted (SCoT) markers system is a novel approach used here to investigate intra and interspecific polymorphisms of phytopathogenic fungi.

Materials And Methods: This study assessed genetic variability between and within 96 isolates of ten fungal species associated with a variety of plant species using 36 SCoT primers.

Analysis of genetic diversity among common bean germplasm by start codon targeted (SCoT) markers.

Background: Breeding strategies to improve modern varieties having high yield, high nutritional value and resistance to biotic and abiotic stress, etc. is very important to make up for the food deficiencies. Molecular studies as a tool in breeding programs for the characterization of germplasm have been performed with several DNA marker systems.

Characterization and Pathogenicity of Rhizoctonia Species Causing Root Rot and Damping-off on Sugar Beet in Turkey.

During 2015-2017 growing seasons, seventy-one isolates of Rhizoctonia spp. were obtained from the samples collected from the sugar beet fields of Konya province, which is one of the most important sugar beet growing areas of Turkey. Anastomosis groups (AGs) of Rhizoctonia spp.