Understanding the role of different biochemical compounds responsible for inducing resistance in pigeon pea towards Helicoverpa armigera infestation
Abstract
Pigeon pea’s productivity has been stagnant over the years because of the devastating pest Helicoverpa armigera which causes major yield losses. The present study explored different responses of various defense strategies in leaves and pods of four pigeon pea cultivars (ICP-12142, ICP-11543, LRG-41 and CO-8) after infestation. Two pigeon pea cultivars viz; ICP-11543 and CO-8 were ascertained to be susceptible to infestation with excessive leaf and pod damage compared to the other two cultivars. Decreased activities of defensive enzymes/compounds like peroxidase (POD), superoxide dismutase (SOD), polyphenol oxidase (PPO) and total phenols were reported following infestation in cultivars of ICP-11543 and CO-8 which resulted in intensification of infestation. The cultivars; LRG-41 and ICP12142 were found to be moderately resistant to pest infestation because of the up-regulation of PPO, POD and SOD along with accumulation of total phenols which might be held accountable for shifting the oxidative status of the respective cultivars.
It is certified that:
- The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
- The article has been seen by all the authors who are satisfied with its form and content.
- The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
- All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
- The corresponding author takes full responsibility for this article.
- The address of the organization where the research was conducted is given.
- The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
- Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
- If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.
