Competence for Elicitation of H2O2 in Hypocotyls of Cucumber Is Induced by Breaching the Cuticle and Is Enhanced by Salicylic Acid.
Identifieur interne : 002B39 ( Main/Exploration ); précédent : 002B38; suivant : 002B40Competence for Elicitation of H2O2 in Hypocotyls of Cucumber Is Induced by Breaching the Cuticle and Is Enhanced by Salicylic Acid.
Auteurs : M. Fauth ; A. Merten ; M. G. Hahn ; W. Jeblick ; H. KaussSource :
- Plant physiology [ 1532-2548 ] ; 1996.
Abstract
To study H2O2 production, the epidermal surfaces of hypocotyl segments from etiolated seedlings of cucumber (Cucumis sativus L.) were gently abraded. Freshly abraded segments were not constitutively competent for rapid H2O2 elicitation. This capacity developed subsequent to abrasion in a time-dependent process that was greatly enhanced in segments exhibiting an acquired resistance to penetration of their epidermal cell walls by Colletotrichum lagenarium, because of root pretreatment of the respective seedlings with 2,6-dichloroisonicotinic acid. When this compound or salicylic acid was applied to abraded segments, it also greatly enhanced the induction of competence for H2O2 elicitation. This process was fully inhibited by 5 [mu]M cycloheximide or 200 [mu]M puromycin, suggesting a requirement for translational protein synthesis. Both a crude elicitor preparation and a partially purified oligoglucan mixture from Phytophthora sojae also induced, in addition to H2O2 production, a refractory state, which explains the transient nature of H2O2 elicitation. Taken together, these results suggest that the cucumber hypocotyl epidermis becomes conditioned for competence to produce H2O2 in response to elicitors by a stimulus resulting from breaching the cuticle and/or cutting segments. This conditioning process is associated with protein synthesis and is greatly enhanced when substances able to induce systemic acquired resistance are present in the tissue.
DOI: 10.1104/pp.110.2.347
PubMed: 12226186
PubMed Central: PMC157727
Affiliations:
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Fauth</name><affiliation><nlm:affiliation>Fachbereich Biologie der Universitat, Postfach 3049, D-67653 Kaiserslautern, Germany (M.F., A.M., W.J., H.K.).</nlm:affiliation><wicri:noCountry code="subField">H.K.).</wicri:noCountry></affiliation></author><author><name sortKey="Merten, A" sort="Merten, A" uniqKey="Merten A" first="A." last="Merten">A. Merten</name></author><author><name sortKey="Hahn, M G" sort="Hahn, M G" uniqKey="Hahn M" first="M. G." last="Hahn">M. G. Hahn</name></author><author><name sortKey="Jeblick, W" sort="Jeblick, W" uniqKey="Jeblick W" first="W." last="Jeblick">W. Jeblick</name></author><author><name sortKey="Kauss, H" sort="Kauss, H" uniqKey="Kauss H" first="H." last="Kauss">H. Kauss</name></author></analytic><series><title level="j">Plant physiology</title><idno type="eISSN">1532-2548</idno><imprint><date when="1996" type="published">1996</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To study H2O2 production, the epidermal surfaces of hypocotyl segments from etiolated seedlings of cucumber (Cucumis sativus L.) were gently abraded. Freshly abraded segments were not constitutively competent for rapid H2O2 elicitation. This capacity developed subsequent to abrasion in a time-dependent process that was greatly enhanced in segments exhibiting an acquired resistance to penetration of their epidermal cell walls by Colletotrichum lagenarium, because of root pretreatment of the respective seedlings with 2,6-dichloroisonicotinic acid. When this compound or salicylic acid was applied to abraded segments, it also greatly enhanced the induction of competence for H2O2 elicitation. This process was fully inhibited by 5 [mu]M cycloheximide or 200 [mu]M puromycin, suggesting a requirement for translational protein synthesis. Both a crude elicitor preparation and a partially purified oligoglucan mixture from Phytophthora sojae also induced, in addition to H2O2 production, a refractory state, which explains the transient nature of H2O2 elicitation. Taken together, these results suggest that the cucumber hypocotyl epidermis becomes conditioned for competence to produce H2O2 in response to elicitors by a stimulus resulting from breaching the cuticle and/or cutting segments. This conditioning process is associated with protein synthesis and is greatly enhanced when substances able to induce systemic acquired resistance are present in the tissue.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">12226186</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1532-2548</ISSN><JournalIssue CitedMedium="Internet"><Volume>110</Volume><Issue>2</Issue><PubDate><Year>1996</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Plant physiology</Title><ISOAbbreviation>Plant Physiol</ISOAbbreviation></Journal><ArticleTitle>Competence for Elicitation of H2O2 in Hypocotyls of Cucumber Is Induced by Breaching the Cuticle and Is Enhanced by Salicylic Acid.</ArticleTitle><Pagination><MedlinePgn>347-354</MedlinePgn></Pagination><Abstract><AbstractText>To study H2O2 production, the epidermal surfaces of hypocotyl segments from etiolated seedlings of cucumber (Cucumis sativus L.) were gently abraded. Freshly abraded segments were not constitutively competent for rapid H2O2 elicitation. This capacity developed subsequent to abrasion in a time-dependent process that was greatly enhanced in segments exhibiting an acquired resistance to penetration of their epidermal cell walls by Colletotrichum lagenarium, because of root pretreatment of the respective seedlings with 2,6-dichloroisonicotinic acid. When this compound or salicylic acid was applied to abraded segments, it also greatly enhanced the induction of competence for H2O2 elicitation. This process was fully inhibited by 5 [mu]M cycloheximide or 200 [mu]M puromycin, suggesting a requirement for translational protein synthesis. Both a crude elicitor preparation and a partially purified oligoglucan mixture from Phytophthora sojae also induced, in addition to H2O2 production, a refractory state, which explains the transient nature of H2O2 elicitation. Taken together, these results suggest that the cucumber hypocotyl epidermis becomes conditioned for competence to produce H2O2 in response to elicitors by a stimulus resulting from breaching the cuticle and/or cutting segments. This conditioning process is associated with protein synthesis and is greatly enhanced when substances able to induce systemic acquired resistance are present in the tissue.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fauth</LastName><ForeName>M.</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Fachbereich Biologie der Universitat, Postfach 3049, D-67653 Kaiserslautern, Germany (M.F., A.M., W.J., H.K.).</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Merten</LastName><ForeName>A.</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Hahn</LastName><ForeName>M. G.</ForeName><Initials>MG</Initials></Author><Author ValidYN="Y"><LastName>Jeblick</LastName><ForeName>W.</ForeName><Initials>W</Initials></Author><Author ValidYN="Y"><LastName>Kauss</LastName><ForeName>H.</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Plant Physiol</MedlineTA><NlmUniqueID>0401224</NlmUniqueID><ISSNLinking>0032-0889</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1996</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>9</Month><Day>13</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1996</Year><Month>2</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12226186</ArticleId><ArticleId IdType="pii">110/2/347</ArticleId><ArticleId IdType="pmc">PMC157727</ArticleId><ArticleId IdType="doi">10.1104/pp.110.2.347</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Plant Physiol. 1995 Feb;107(2):485-490</Citation><ArticleIdList><ArticleId IdType="pubmed">12228375</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1976 May;57(5):760-5</Citation><ArticleIdList><ArticleId IdType="pubmed">16659566</ArticleId></ArticleIdList></Reference><Reference><Citation>J Biol Chem. 1984 Sep 25;259(18):11321-36</Citation><ArticleIdList><ArticleId IdType="pubmed">6470003</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1994 May;105(1):89-94</Citation><ArticleIdList><ArticleId IdType="pubmed">12232189</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1994 Jun;105(2):467-472</Citation><ArticleIdList><ArticleId IdType="pubmed">12232215</ArticleId></ArticleIdList></Reference><Reference><Citation>J Biol Chem. 1984 Sep 25;259(18):11341-5</Citation><ArticleIdList><ArticleId IdType="pubmed">6547958</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Cell. 1991 Feb;3(2):127-36</Citation><ArticleIdList><ArticleId IdType="pubmed">1840904</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1995 Apr;107(4):1241-1247</Citation><ArticleIdList><ArticleId IdType="pubmed">12228430</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1991 Oct;97(2):699-705</Citation><ArticleIdList><ArticleId IdType="pubmed">16668455</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1993 May;102(1):233-240</Citation><ArticleIdList><ArticleId IdType="pubmed">12231814</ArticleId></ArticleIdList></Reference><Reference><Citation>Plant Physiol. 1994 Apr;104(4):1109-1112</Citation><ArticleIdList><ArticleId IdType="pubmed">12232151</ArticleId></ArticleIdList></Reference><Reference><Citation>Cell. 1994 Aug 12;78(3):449-60</Citation><ArticleIdList><ArticleId IdType="pubmed">8062387</ArticleId></ArticleIdList></Reference><Reference><Citation>Science. 1994 Nov 18;266(5188):1247-50</Citation><ArticleIdList><ArticleId IdType="pubmed">17810266</ArticleId></ArticleIdList></Reference><Reference><Citation>J Biol Chem. 1984 Sep 25;259(18):11312-20</Citation><ArticleIdList><ArticleId IdType="pubmed">6540778</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list></list><tree><noCountry><name sortKey="Fauth, M" sort="Fauth, M" uniqKey="Fauth M" first="M." last="Fauth">M. Fauth</name><name sortKey="Hahn, M G" sort="Hahn, M G" uniqKey="Hahn M" first="M. G." last="Hahn">M. G. Hahn</name><name sortKey="Jeblick, W" sort="Jeblick, W" uniqKey="Jeblick W" first="W." last="Jeblick">W. Jeblick</name><name sortKey="Kauss, H" sort="Kauss, H" uniqKey="Kauss H" first="H." last="Kauss">H. Kauss</name><name sortKey="Merten, A" sort="Merten, A" uniqKey="Merten A" first="A." last="Merten">A. Merten</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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