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Abstract Detail

Understanding Plant Defense Strategies: Interplay Between Traditional Botanical Tools and Modern Analytical Approaches

Louis, Joe [1].

Omics approaches to understand plant defense against insects.

Annually, crop loss to insect infestation accounts for approximately 20% globally. Maize (Zea mays L.) is arguably the world’s significant cereal crop, but also suffers severe yield losses due to insect infestation. Maize genotype, Mp708, developed by classical plant breeding is resistant to different feeding styles of herbivore pests, compared to B73 and Tx601 genotypes. Feeding by chewing or piercing/sucking insect pests trigger the accumulation of maize insect resistance1 (mir1) transcripts, which encodes a cysteine protease. In addition, insect feeding rapidly accumulates mir1 both locally and systemically, suggesting that mRNA transcripts encoding Mir1-CP contribute to intraplant defense signaling in Mp708 genotype. Recent transcriptomic and metabolomic profiling of maize genotypes provide important clues on additional factors that contribute to mir1-dependent defense against insects. The underlying mechanism(s) of herbivore-induced defenses will be discussed.

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1 - University of Nebraska-Lincoln, Entomology & Biochemistry, 103 Entomology Hall, 1700 E Campus Mall, Lincoln, NE, 68583, USA

plant-insect interactions

Presentation Type: Symposium Presentation
Session: SY07, Understanding plant defense strategies: Interplay between traditional botanical tools and modern analytical approaches
Location: Chatham Ballroom - B/Savannah International Trade and Convention Center
Date: Tuesday, August 2nd, 2016
Time: 2:45 PM
Number: SY07004
Abstract ID:460
Candidate for Awards:None

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