Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.

Rising atmospheric CO(2) concentrations can affect the induced defense of plants against chewing herbivores but little is known about whether elevated CO(2) can change the induced defense of plants against parasitic nematodes. This study examined the interactions between the root-knot nematode Meloi...

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Autores principales:	Yucheng Sun, Jin Yin, Haifeng Cao, Chuanyou Li, Le Kang, Feng Ge
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7f9c20e8aa624137b989e713ab9b28a4
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spelling	oai:doaj.org-article:7f9c20e8aa624137b989e713ab9b28a42021-11-18T06:53:22ZElevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.1932-620310.1371/journal.pone.0019751https://doaj.org/article/7f9c20e8aa624137b989e713ab9b28a42011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21629688/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Rising atmospheric CO(2) concentrations can affect the induced defense of plants against chewing herbivores but little is known about whether elevated CO(2) can change the induced defense of plants against parasitic nematodes. This study examined the interactions between the root-knot nematode Meloidogyne incognita and three isogenic tomato (Lycopersicon esculentum) genotypes grown under ambient (390 ppm) and elevated (750 ppm) CO(2) in growth chambers. In a previous study with open-top chambers in the field, we reported that elevated CO(2) increased the number of nematode-induced root galls in a JA-defense-dominated genotype but not in a wild-type or JA-defense-recessive genotype. In the current study, we tested the hypothesis that elevated CO(2) will favor the salicylic acid (SA)-pathway defense but repress the jasmonic acid (JA)-pathway defense of plants against plant-parasitic nematodes. Our data showed that elevated CO(2) reduced the JA-pathway defense against M. incognita in the wild-type and in a genotype in which defense is dominated by the JA pathway (a JA-defense-dominated genotype) but up-regulated the SA-pathway defense in the wild type and in a JA-defense-recessive genotype (jasmonate-deficient mutant). Our results suggest that, in terms of defense genes, secondary metabolites, and volatile organic compounds, induced defense of nematode-infected plants could be affected by elevated CO(2), and that CO(2)-induced changes of plant resistance may lead to genotype-specific responses of plants to nematodes under elevated CO(2). The changes in resistance against nematodes, however, were small relative to those reported for chewing insects.Yucheng SunJin YinHaifeng CaoChuanyou LiLe KangFeng GePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 5, p e19751 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yucheng Sun Jin Yin Haifeng Cao Chuanyou Li Le Kang Feng Ge Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
description	Rising atmospheric CO(2) concentrations can affect the induced defense of plants against chewing herbivores but little is known about whether elevated CO(2) can change the induced defense of plants against parasitic nematodes. This study examined the interactions between the root-knot nematode Meloidogyne incognita and three isogenic tomato (Lycopersicon esculentum) genotypes grown under ambient (390 ppm) and elevated (750 ppm) CO(2) in growth chambers. In a previous study with open-top chambers in the field, we reported that elevated CO(2) increased the number of nematode-induced root galls in a JA-defense-dominated genotype but not in a wild-type or JA-defense-recessive genotype. In the current study, we tested the hypothesis that elevated CO(2) will favor the salicylic acid (SA)-pathway defense but repress the jasmonic acid (JA)-pathway defense of plants against plant-parasitic nematodes. Our data showed that elevated CO(2) reduced the JA-pathway defense against M. incognita in the wild-type and in a genotype in which defense is dominated by the JA pathway (a JA-defense-dominated genotype) but up-regulated the SA-pathway defense in the wild type and in a JA-defense-recessive genotype (jasmonate-deficient mutant). Our results suggest that, in terms of defense genes, secondary metabolites, and volatile organic compounds, induced defense of nematode-infected plants could be affected by elevated CO(2), and that CO(2)-induced changes of plant resistance may lead to genotype-specific responses of plants to nematodes under elevated CO(2). The changes in resistance against nematodes, however, were small relative to those reported for chewing insects.
format	article
author	Yucheng Sun Jin Yin Haifeng Cao Chuanyou Li Le Kang Feng Ge
author_facet	Yucheng Sun Jin Yin Haifeng Cao Chuanyou Li Le Kang Feng Ge
author_sort	Yucheng Sun
title	Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
title_short	Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
title_full	Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
title_fullStr	Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
title_full_unstemmed	Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.
title_sort	elevated co2 influences nematode-induced defense responses of tomato genotypes differing in the ja pathway.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/7f9c20e8aa624137b989e713ab9b28a4
work_keys_str_mv	AT yuchengsun elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway AT jinyin elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway AT haifengcao elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway AT chuanyouli elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway AT lekang elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway AT fengge elevatedco2influencesnematodeinduceddefenseresponsesoftomatogenotypesdifferinginthejapathway
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Elevated CO2 influences nematode-induced defense responses of tomato genotypes differing in the JA pathway.

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