scholarly journals Extra‐large G‐proteins influence plant response to Sclerotinia sclerotiorum by regulating glucosinolate metabolism in Brassica juncea

2021 ◽  
Author(s):  
Ruchi Tiwari ◽  
Jagreet Kaur ◽  
Naveen C. Bisht
Keyword(s):  
G Proteins ◽  
Brassica Juncea ◽  
Sclerotinia Sclerotiorum ◽  
Plant Response ◽  
Glucosinolate Metabolism

scholarly journals Pathogenicity Determinants of Sclerotinia sclerotiorum and Their Association to Its Aggressiveness on Brassica juncea

2021 ◽  
Vol 37 (4) ◽  
pp. 365-374
Author(s):  
Rupeet Gill ◽  
Prabhjodh S. Sandhu ◽  
Sanjula Sharma ◽  
Pankaj Sharma
Keyword(s):  
Oxalic Acid ◽  
Disease Progression ◽  
Brassica Juncea ◽  
Sclerotinia Sclerotiorum ◽  
Acid Production ◽  
White Rot ◽  
Geographical Regions ◽  
High Level ◽  
First Time

White rot or stem rot caused by Sclerotinia sclerotiorum is one of the most destructive fungal diseases that have become a serious threat to the successful cultivation of oilseed Brassicas. The study was designed with an aim to investigate the association between the pathogenic aggressiveness and pathogenicity determinants of this pathogen specifically in Brassica for the first time. For this, a total of 58 isolates of S. sclerotiorum from different geographical regions were collected and purified. These isolates were inoculated on a Brassica juncea cv. RL-1359 and they exhibited high level of variation in their disease progression. The isolates were grouped and then 24 isolates were selected for the biochemical analysis of pathogenicity determinants. The isolates varied significantly with respect to their total organic acids, oxalic acid production and pectin methyl esterase and polygalacturonase activity. The oxalic acid production corresponded to the disease progression of the isolates; the isolates with higher oxalic acid production were the more aggressive ones and vice-versa. This is, in our knowledge, the first study to establish a correlation between oxalic acid production and pathogenic aggressiveness of S. sclerotiorum on B. juncea. However, the pectinases’ enzyme activity did not follow the trend as of disease progression. These suggest an indispensable role of oxalic acid in pathogenicity of the fungus and the potential to be used as biochemical marker for preliminary assessment of pathogenic aggressiveness of various isolates before incorporating them in a breeding program.

scholarly journals Biochemical factors and enzymes governing resistance in Indian mustard (Brassica juncea) against Sclerotinia stem rot (Sclerotinia sclerotiorum)

2014 ◽  
Vol 8 (36) ◽  
pp. 3295-3306
Author(s):  
Kishan Bairwa Shri ◽  
Lal Godara Shankar ◽  
Kumar Pardeep ◽  
Chand Bairwa Ramesh ◽  
Gangopadhyay Samiran
Keyword(s):  
Brassica Juncea ◽  
Sclerotinia Sclerotiorum ◽  
Indian Mustard ◽  
Stem Rot ◽  
Sclerotinia Stem Rot

Forewarning models for Sclerotinia rot (Sclerotinia sclerotiorum) in Indian mustard (Brassica juncea L.)

2015 ◽  
Vol 43 (4) ◽  
pp. 509-516 ◽  
Author(s):  
Pankaj Sharma ◽  
P. D. Meena ◽  
Amrender Kumar ◽  
Vinod Kumar ◽  
D. Singh
Keyword(s):  
Brassica Juncea ◽  
Sclerotinia Sclerotiorum ◽  
Indian Mustard ◽  
Sclerotinia Rot

scholarly journals Genome-Wide Identification and Gene Expression Analysis of ABA Receptor Family Genes in Brassica juncea var. tumida

Genes ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 470 ◽  
Author(s):  
Cheng ◽  
Zhong ◽  
Cai ◽  
Su ◽  
Li
Keyword(s):  
Gene Expression ◽  
Brassica Juncea ◽  
Expression Analysis ◽  
Gene Expression Analysis ◽  
Expression Patterns ◽  
Plant Response ◽  
Specific Gene ◽  
Cis Elements ◽  
Physiological Processes ◽  
Aba Receptor

Abscisic acid (ABA) plays important roles in multiple physiological processes, such as plant response to stresses and plant development. The ABA receptors pyrabactin resistance (PYR)/ PYR1-like (PYL)/regulatory components of ABA receptor (RCAR) play a crucial role in ABA perception and signaling. However, little is known about the details regarding PYL family genes in Brassica juncea var. tumida. Here, 25 PYL family genes were identified in B. juncea var. tumida genome, including BjuPYL3, BjuPYL4s, BjuPYL5s, BjuPYL6s, BjuPYL7s, BjuPYL8s, BjuPYL10s, BjuPYL11s, and BjuPYL13. The results of phylogenic analysis and gene structure showed that the PYL family genes performed similar gene characteristics. By analyzing cis-elements in the promoters of those BjuPYLs, several hormone and stress related cis-elements were found. The results of gene expression analysis showed that the ABA receptor homologous genes were induced by abiotic and biotic stress. The tissue-specific gene expression patterns of BjuPYLs also suggested those genes might regulate the stem swelling during plant growth. These findings indicate that BjuPYLs are involved in plant response to stresses and organ development. This study provides valuable information for further functional investigations of PYL family genes in B. juncea var. tumida.

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