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Endogenous indole-3-acetic acid and trans-zeatin ribosides in relation to axillary bud formation in standard chrysanthemum

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dc.contributor.authorHuh, Yeun Joo-
dc.contributor.authorLim, Jin Hee-
dc.contributor.authorPark, Sang Kun-
dc.contributor.authorChoi, Seung Ryul-
dc.contributor.authorKim, Seung Heui-
dc.contributor.authorPak, Chun Ho-
dc.date.accessioned2021-09-07T13:34:18Z-
dc.date.available2021-09-07T13:34:18Z-
dc.date.created2021-06-14-
dc.date.issued2011-04-
dc.identifier.issn2211-3452-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/112718-
dc.description.abstractThe lateral buds of non-branching chrysanthemum cultivars are affected by temperature and exogenous plant growth regulator (PGR) treatment. The number of axillary buds, endogenous indole-3-acetic acid (IAA) and t-zeatin riboside (t-ZR) concentrations by planting date and PGR treatments were investigated in three genotypes. Two non-branching genotypes, 'Iwanohakusen' and '01B1-8' and branching type 'Jinba' were planted on May 2 and June 29. 'Jinba' always bore axillary buds and '01B1-8' showed stronger non-branching traits than 'Iwanohakusen'. Only 22.9% viable buds developed in the axils of '01B1-8' whereas 68.7% developed in 'Iwanohakusen' on the May 2 planting date group. When planting was delayed from May 2 to June 29, the number of axillary buds decreased in both non-branching genotypes. Endogenous IAA concentrations remained unchanged and t-ZR concentrations decreased in all the three genotypes when the planting date was delayed. This reduced t-ZR level corresponds to the increased ratio of IAA/t-ZR. The number of viable axillary buds increased from 21.7% to 50.1% upon ethephon treatment and to 30.3% by synthetic cytokinin 6-benzylaminopurine (BAP) treatment in '01B1-8'. Viable axillary buds of '01B1-22' increased from 17.1% to 25.1% and 29.1% respectively. Ethephon and BAP application decreased endogenous IAA contents and increased t-ZR contents. Elevated concentrations of t-ZR rather than IAA probably account for axillary bud formation in non-branching chrysanthemum. Just as the non-branching genotypes, the branching type cultivar 'Jinba' showed similar changes in IAA and t-ZR contents according to planting date and exogenous PGR treatments. These results showed that genotypic difference of branching patterns is not a result of concentration-dependent reaction.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherKOREAN SOC HORTICULTURAL SCIENCE-
dc.subjectAPICAL DOMINANCE-
dc.subjectSHOOT-
dc.subjectCYTOKININ-
dc.subjectARABIDOPSIS-
dc.subjectGROWTH-
dc.subjectAUXIN-
dc.subjectGENE-
dc.titleEndogenous indole-3-acetic acid and trans-zeatin ribosides in relation to axillary bud formation in standard chrysanthemum-
dc.typeArticle-
dc.contributor.affiliatedAuthorPak, Chun Ho-
dc.identifier.doi10.1007/s13580-011-0133-5-
dc.identifier.scopusid2-s2.0-84864430043-
dc.identifier.wosid000290040900003-
dc.identifier.bibliographicCitationHORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY, v.52, no.2, pp.128 - 132-
dc.relation.isPartOfHORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY-
dc.citation.titleHORTICULTURE ENVIRONMENT AND BIOTECHNOLOGY-
dc.citation.volume52-
dc.citation.number2-
dc.citation.startPage128-
dc.citation.endPage132-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.identifier.kciidART001549446-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.description.journalRegisteredClasskci-
dc.relation.journalResearchAreaAgriculture-
dc.relation.journalWebOfScienceCategoryHorticulture-
dc.subject.keywordPlusAPICAL DOMINANCE-
dc.subject.keywordPlusSHOOT-
dc.subject.keywordPlusCYTOKININ-
dc.subject.keywordPlusARABIDOPSIS-
dc.subject.keywordPlusGROWTH-
dc.subject.keywordPlusAUXIN-
dc.subject.keywordPlusGENE-
dc.subject.keywordAuthoraxillary meristem-
dc.subject.keywordAuthorDendranthema x grandiflorum-
dc.subject.keywordAuthorhigh temperature-
dc.subject.keywordAuthorshoot branching-
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