INBA   12521
INSTITUTO DE INVESTIGACIONES EN BIOCIENCIAS AGRICOLAS Y AMBIENTALES
Unidad Ejecutora - UE
capítulos de libros
Título:
Soybean response to pest attack
Autor/es:
ZAVALA J. A; GIACOMETTI, R
Libro:
Soybeans: Cultivation, Nutritional Properties and Effects on Health
Editorial:
Nova Science Publishers
Referencias:
Año: 2017; p. 35 - 62
Resumen:
Soybean (Glycine max), the most important legume crop in South and North America, is attacked by different insect pests that decrease crop yield. Plants have evolved sophisticated signaling networks that allow them to perceive and to cope with leaf herbivory. Herbivore attack alters levels of defensive phytohormones jasmonic acid (JA), salicylic acid (SA) and ethylene (ET) in plants, resulting in a reconfiguration of their transcriptomes and proteomes. Leaves damaged by chewing herbivores accumulate chemical defenses, such as proteinase inhibitors (PIs), polyphenol oxidase, isoflavonoids or alkaloids. Although damage is perceived by plants through mitogen-activated protein kinases (MPKs) that induce defense responses against herbivores, the response can change in accordance with the attacked organ. Interestingly, some insects prefer to feed only on certain organs and plant parts, like caterpillars feed on leaves and stink bugs on pods. Here we explain the mechanisms that regulate the triggered responses produced by different insect pests on soybean organs. Understanding the specific responses of plant organs to insect pests will help to develop more tolerance crops to insects.