Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck).
Identifieur interne : 000601 ( PubMed/Checkpoint ); précédent : 000600; suivant : 000602Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck).
Auteurs : Yin Wang [République populaire de Chine] ; Ji-Hong LiuSource :
- Journal of plant physiology [ 1618-1328 ] ; 2012.
English descriptors
- KwdEn :
- Anti-Infective Agents (pharmacology), Citrus sinensis (genetics), Citrus sinensis (metabolism), Citrus sinensis (microbiology), Disease Resistance (drug effects), Disease Resistance (physiology), Genes, Plant (drug effects), Genes, Plant (genetics), Hydrogen Peroxide (metabolism), Phenylalanine Ammonia-Lyase (metabolism), Plant Diseases (microbiology), Plant Diseases (therapy), Plant Proteins (metabolism), RNA, Messenger (drug effects), RNA, Messenger (metabolism), Salicylic Acid (metabolism), Salicylic Acid (pharmacology), Xanthomonas axonopodis (drug effects), Xanthomonas axonopodis (pathogenicity).
- MESH :
- chemical , drug effects : RNA, Messenger.
- chemical , metabolism : Hydrogen Peroxide, Phenylalanine Ammonia-Lyase, Plant Proteins, RNA, Messenger, Salicylic Acid.
- chemical , pharmacology : Anti-Infective Agents, Salicylic Acid.
- drug effects : Disease Resistance, Genes, Plant, Xanthomonas axonopodis.
- genetics : Citrus sinensis, Genes, Plant.
- metabolism : Citrus sinensis.
- microbiology : Citrus sinensis, Plant Diseases.
- pathogenicity : Xanthomonas axonopodis.
- physiology : Disease Resistance.
- therapy : Plant Diseases.
Abstract
Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.
DOI: 10.1016/j.jplph.2012.03.018
PubMed: 22658220
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck).</title><author><name sortKey="Wang, Yin" sort="Wang, Yin" uniqKey="Wang Y" first="Yin" last="Wang">Yin Wang</name><affiliation wicri:level="1"><nlm:affiliation>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070</wicri:regionArea><wicri:noRegion>Wuhan 430070</wicri:noRegion></affiliation></author><author><name sortKey="Liu, Ji Hong" sort="Liu, Ji Hong" uniqKey="Liu J" first="Ji-Hong" last="Liu">Ji-Hong Liu</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2012">2012</date><idno type="RBID">pubmed:22658220</idno><idno type="pmid">22658220</idno><idno type="doi">10.1016/j.jplph.2012.03.018</idno><idno type="wicri:Area/PubMed/Corpus">000582</idno><idno type="wicri:Area/PubMed/Curation">000582</idno><idno type="wicri:Area/PubMed/Checkpoint">000582</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck).</title><author><name sortKey="Wang, Yin" sort="Wang, Yin" uniqKey="Wang Y" first="Yin" last="Wang">Yin Wang</name><affiliation wicri:level="1"><nlm:affiliation>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070</wicri:regionArea><wicri:noRegion>Wuhan 430070</wicri:noRegion></affiliation></author><author><name sortKey="Liu, Ji Hong" sort="Liu, Ji Hong" uniqKey="Liu J" first="Ji-Hong" last="Liu">Ji-Hong Liu</name></author></analytic><series><title level="j">Journal of plant physiology</title><idno type="eISSN">1618-1328</idno><imprint><date when="2012" type="published">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anti-Infective Agents (pharmacology)</term><term>Citrus sinensis (genetics)</term><term>Citrus sinensis (metabolism)</term><term>Citrus sinensis (microbiology)</term><term>Disease Resistance (drug effects)</term><term>Disease Resistance (physiology)</term><term>Genes, Plant (drug effects)</term><term>Genes, Plant (genetics)</term><term>Hydrogen Peroxide (metabolism)</term><term>Phenylalanine Ammonia-Lyase (metabolism)</term><term>Plant Diseases (microbiology)</term><term>Plant Diseases (therapy)</term><term>Plant Proteins (metabolism)</term><term>RNA, Messenger (drug effects)</term><term>RNA, Messenger (metabolism)</term><term>Salicylic Acid (metabolism)</term><term>Salicylic Acid (pharmacology)</term><term>Xanthomonas axonopodis (drug effects)</term><term>Xanthomonas axonopodis (pathogenicity)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="drug effects" xml:lang="en"><term>RNA, Messenger</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Hydrogen Peroxide</term><term>Phenylalanine Ammonia-Lyase</term><term>Plant Proteins</term><term>RNA, Messenger</term><term>Salicylic Acid</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Anti-Infective Agents</term><term>Salicylic Acid</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Disease Resistance</term><term>Genes, Plant</term><term>Xanthomonas axonopodis</term></keywords><keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Citrus sinensis</term><term>Genes, Plant</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Citrus sinensis</term><term>Plant Diseases</term></keywords><keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Xanthomonas axonopodis</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Disease Resistance</term></keywords><keywords scheme="MESH" qualifier="therapy" xml:lang="en"><term>Plant Diseases</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">22658220</PMID><DateCreated><Year>2012</Year><Month>7</Month><Day>16</Day></DateCreated><DateCompleted><Year>2012</Year><Month>12</Month><Day>07</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1618-1328</ISSN><JournalIssue CitedMedium="Internet"><Volume>169</Volume><Issue>12</Issue><PubDate><Year>2012</Year><Month>Aug</Month><Day>15</Day></PubDate></JournalIssue><Title>Journal of plant physiology</Title><ISOAbbreviation>J. Plant Physiol.</ISOAbbreviation></Journal><ArticleTitle>Exogenous treatment with salicylic acid attenuates occurrence of citrus canker in susceptible navel orange (Citrus sinensis Osbeck).</ArticleTitle><Pagination><MedlinePgn>1143-9</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.jplph.2012.03.018</ELocationID><Abstract><AbstractText>Citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) is a devastating bacterial disease threatening the citrus industry. Salicylic acid (SA) plays a key role in plant defense response to biotic stress, but information is scarce concerning the application of SA to enhancing Xac resistance. In the present research attempts were made to investigate how exogenous application of SA influenced canker disease outbreak in navel orange (Citrus sinensis). Exogenously applied SA at 0.25 mM significantly enhanced the endogenous free and bound SA, particularly the latter. Upon exposure to Xac, lower disease incidence rate and smaller lesion sites were observed in the samples pre-treated with SA, accompanied by repression of bacterial growth at the lesion sites. Concurrent with the augmented disease resistance, SA-treated leaves had higher H₂O₂ level and smaller stomata apertures before or after Xac infection when compared with their counterparts pre-treated with water (control). SA treatment elevated the activities of phenylalanine ammonia-lyase and β-1,3-glucanase, but only the latter was higher in the SA-treated samples after Xac infection. In addition, mRNA levels of two pathogenesis-related genes, CsCHI and CsPR4A, were higher in the SA-treated samples relative to the control. Taken together, our results strongly suggest that the exogenously applied SA has evoked a cascade of physiological and molecular events that function singly or in concert to confer resistance to Xac invasion.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier GmbH. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Yin</ForeName><Initials>Y</Initials><AffiliationInfo><Affiliation>Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Ji-Hong</ForeName><Initials>JH</Initials></Author></AuthorList><Language>ENG</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2012</Year><Month>Jun</Month><Day>01</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>J Plant 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