Induced resistance in rice against insects

Vaccinations are the mainstay of western preventive medicine, and they have been used to protect some crops against disease and insect pests. We consider rice as a model for protection using induced resistance since it is one of the most important staple crops and there have been significant new dev...

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Autores principales: Karban, R., Chen, Y.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Cambridge University Press 2007
Materias:
Acceso en línea:https://hdl.handle.net/10568/166432
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author Karban, R.
Chen, Y.
author_browse Chen, Y.
Karban, R.
author_facet Karban, R.
Chen, Y.
author_sort Karban, R.
collection Repository of Agricultural Research Outputs (CGSpace)
description Vaccinations are the mainstay of western preventive medicine, and they have been used to protect some crops against disease and insect pests. We consider rice as a model for protection using induced resistance since it is one of the most important staple crops and there have been significant new developments in: cross-resistance among rice insects, chemical pathways involved in induced resistance, sequencing the rice genome and expression of genes conferring resistance against rice insect pests. Insect attack has been found to cause lesions that kill planthopper eggs and early stages of gall midges. Damaged plants released volatiles that made them less likely to be chosen by planthoppers and more attractive to parasitoids. Chemical elicitors have been developed for dicotyledonous plants and these can induce resistance in rice, although rice does not fit models developed to explain signalling in dicots. For example, salicylic acid did not increase in rice after infection by pathogens and did not appear to be the mobile signal for induced resistance against pathogens although it was involved in induced responses to phloem-feeding insects. Jasmonic acid acted as a signal in some induced responses to pathogens as well as chewing insects. Many of the genes associated with induced resistance in rice have recently been mapped, and techniques are being developed to incorporate them into the genome of cultivated varieties. Attempts to control insect pests of rice will affect interactions with pathogens, predators and parasites, and other organisms in this agroecosystem.
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spelling CGSpace1664322024-12-19T14:12:11Z Induced resistance in rice against insects Karban, R. Chen, Y. biochemical pathways genes gene expression induced resistance insect pests jasmonic acid pest resistance salicylic acid Vaccinations are the mainstay of western preventive medicine, and they have been used to protect some crops against disease and insect pests. We consider rice as a model for protection using induced resistance since it is one of the most important staple crops and there have been significant new developments in: cross-resistance among rice insects, chemical pathways involved in induced resistance, sequencing the rice genome and expression of genes conferring resistance against rice insect pests. Insect attack has been found to cause lesions that kill planthopper eggs and early stages of gall midges. Damaged plants released volatiles that made them less likely to be chosen by planthoppers and more attractive to parasitoids. Chemical elicitors have been developed for dicotyledonous plants and these can induce resistance in rice, although rice does not fit models developed to explain signalling in dicots. For example, salicylic acid did not increase in rice after infection by pathogens and did not appear to be the mobile signal for induced resistance against pathogens although it was involved in induced responses to phloem-feeding insects. Jasmonic acid acted as a signal in some induced responses to pathogens as well as chewing insects. Many of the genes associated with induced resistance in rice have recently been mapped, and techniques are being developed to incorporate them into the genome of cultivated varieties. Attempts to control insect pests of rice will affect interactions with pathogens, predators and parasites, and other organisms in this agroecosystem. 2007-08 2024-12-19T12:56:15Z 2024-12-19T12:56:15Z Journal Article https://hdl.handle.net/10568/166432 en Cambridge University Press Karban, R.; Chen, Y. 2007. Induced resistance in rice against insects. Bull. Entomol. Res., Volume 97 no. 4 p. 327-335
spellingShingle biochemical pathways
genes
gene expression
induced resistance
insect pests
jasmonic acid
pest resistance
salicylic acid
Karban, R.
Chen, Y.
Induced resistance in rice against insects
title Induced resistance in rice against insects
title_full Induced resistance in rice against insects
title_fullStr Induced resistance in rice against insects
title_full_unstemmed Induced resistance in rice against insects
title_short Induced resistance in rice against insects
title_sort induced resistance in rice against insects
topic biochemical pathways
genes
gene expression
induced resistance
insect pests
jasmonic acid
pest resistance
salicylic acid
url https://hdl.handle.net/10568/166432
work_keys_str_mv AT karbanr inducedresistanceinriceagainstinsects
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