Reduced cell wall degradation plays a role in cow dung-mediated management of wilt complex disease of chickpea

Chickpea, a major pulse crop, is highly prone to a devastating wilt disease commonly caused by the complex interaction of soilborne fungal pathogens of the genus Fusarium , Rhizoctonia and Sclerotinia . These pathogens collectively cause both superficial and sunken lesions resulting in symptoms like...

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Bibliographic Details
Published in:Biology and fertility of soils 2013-10, Vol.49 (7), p.881-891
Main Authors: Nautiyal, Chandra Shekhar, Srivastava, Suchi, Mishra, Sandhya, Asif, Mehar Hasan, Chauhan, Puneet Singh, Singh, Poonam C., Nath, Pravendra
Format: Article
Language:English
Subjects:
Agriculture
Agronomy. Soil science and plant productions
Biological and medical sciences
Biological control
Biomedical and Life Sciences
Cattle
Cattle manure
Cells
Cicer arietinum
Dung
Flowers & plants
Fundamental and applied biological sciences. Psychology
Fusarium
Life Sciences
Original Paper
Pathogens
Plant diseases
Rhizoctonia
Sclerotinia
Seedlings
Seeds
Soil science
Soil Science & Conservation
Wilting
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Summary:Chickpea, a major pulse crop, is highly prone to a devastating wilt disease commonly caused by the complex interaction of soilborne fungal pathogens of the genus Fusarium , Rhizoctonia and Sclerotinia . These pathogens collectively cause both superficial and sunken lesions resulting in symptoms like wilting and yellowing causing plant losses at seedling stage and become a major limiting factor for its growth and yield. Earlier studies demonstrated the role of composted mixture in protection against soilborne pathogens. However, there is paucity of substantial evidence for the mechanism of protection. The present study predicts the probable mechanism of cow dung-mediated reduction of wilt in Cicer arietinum . Cow dung-coated seeds sown in presence of mixture of fungi (FCD) could reduce the activities of cell wall-degrading enzymes produced by plant roots in response to pathogens, which were otherwise higher in mixture of wilt complex fungi/pathogens (FUN) treatment. Reduction in transcript accumulation of related genes followed by histological studies showed intercellular fungal colonization in FUN treatment, whereas it was undetected in FCD. Results indicate that cow dung treatment of chickpea seeds reduces activities of the cell wall-degrading enzymes in a transcriptionally regulated manner, which in turn function as biocontrol measure for disease.
ISSN:0178-2762
1432-0789
DOI:10.1007/s00374-013-0782-x