Characterized constituents of insect herbivore oral secretions and their influence on the regulation of plant defenses

TitleCharacterized constituents of insect herbivore oral secretions and their influence on the regulation of plant defenses
Publication TypeJournal Article
Year of Publication2022
AuthorsKallure, GS, Kumari, A, Shinde, BA, Giri, AP
JournalPhytochemistry
Volume193
Pagination113008
Date PublishedJAN
Type of ArticleArticle
ISSN0031-9422
KeywordsEffector, Elicitor, Herbivore insects, Oral secretion, Plant defense, Suppressor
AbstractFor more than 350 million years, there have been ongoing dynamic interactions between plants and insects. In several cases, insects cause-specific feeding damage with ensuing herbivore-associated molecular patterns that invoke characteristic defense responses. During feeding on plant tissue, insects release oral secretions (OSs) containing a repertoire of molecules affecting plant defense (effectors). Some of these OS components might elicit a defense response to combat insect attacks (elicitors), while some might curb the plant defenses (suppressors). Few reports suggest that the synthesis and function of OS components might depend on the host plant and associated microorganisms. We review these intricate plant-insect interactions, during which there is a continuous exchange of molecules between plants and feeding insects along with the associated microorganisms. We further provide a list of commonly identified inducible plant produced defensive molecules released upon insect attack as well as in response to OS treatments of the plants. Thus, we describe how plants specialized and defense-related metabolism is modulated at innumerable phases by OS during plant-insect interactions. A molecular understanding of these complex interactions will provide a means to design eco-friendly crop protection strategies.
DOI10.1016/j.phytochem.2021.113008
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)4.072
Divison category: 
Biochemical Sciences

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