A Stress-Responsive Caleosin-Like Protein, AtCLO4, Acts as a Negative Regulator of ABA Responses in Arabidopsis
DC Field | Value | Language |
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dc.contributor.author | Kim, Yun Young | - |
dc.contributor.author | Jung, Kwang Wook | - |
dc.contributor.author | Yoo, Kyoung Shin | - |
dc.contributor.author | Jeung, Ji Ung | - |
dc.contributor.author | Shin, Jeong Sheop | - |
dc.date.accessioned | 2021-09-07T12:59:33Z | - |
dc.date.available | 2021-09-07T12:59:33Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2011-05 | - |
dc.identifier.issn | 0032-0781 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/112584 | - |
dc.description.abstract | Caleosins or related sequences have been found in a wide range of higher plants. In Arabidopsis, seed-specific caleosins are viewed as oil-body (OB)-associated proteins that possess Ca(2+)-dependent peroxygenase activity and are involved in processes of lipid degradation. Recent experimental evidence suggests that one of the Arabidopsis non-seed caleosins, AtCLO3, is involved in controlling stomatal aperture during the drought response; the roles of the other caleosin-like proteins in Arabidopsis remain largely uncharacterized. We have demonstrated that a novel stress-responsive and OB-associated Ca(2+)-binding caleosin-like protein, AtCLO4, is expressed in non-seed tissues of Arabidopsis, including guard cells, and down-regulated following exposure to exogenous ABA and salt stress. At the seed germination stage, a loss-of-function mutant (atclo4) was hypersensitive to ABA, salt and mannitol stresses, whereas AtCLO4-overexpressing (Ox) lines were more hyposensitive to those stresses than the wild type. In adult stage, atclo4 mutant and AtCLO4-Ox plants showed enhanced and decreased drought tolerance, respectively. Following exposure to exogenous ABA, the expression of key ABA-dependent regulatory genes, such as ABF3 and ABF4, was up-regulated in the atclo4 mutant, while it was down-regulated in AtCLO4-Ox lines. Based on these results, we propose that the OB-associated Ca(2+)-binding AtCLO4 protein acts as a negative regulator of ABA responses in Arabidopsis. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | OXFORD UNIV PRESS | - |
dc.subject | ABSCISIC-ACID | - |
dc.subject | OIL BODIES | - |
dc.subject | CA2+-BINDING PROTEIN | - |
dc.subject | DROUGHT STRESS | - |
dc.subject | TOLERANCE | - |
dc.subject | CALCIUM | - |
dc.subject | PLANTS | - |
dc.subject | DEHYDRATION | - |
dc.subject | GERMINATION | - |
dc.subject | CROSSTALK | - |
dc.title | A Stress-Responsive Caleosin-Like Protein, AtCLO4, Acts as a Negative Regulator of ABA Responses in Arabidopsis | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, Jeong Sheop | - |
dc.identifier.doi | 10.1093/pcp/pcr039 | - |
dc.identifier.scopusid | 2-s2.0-79956125692 | - |
dc.identifier.wosid | 000290590200015 | - |
dc.identifier.bibliographicCitation | PLANT AND CELL PHYSIOLOGY, v.52, no.5, pp.874 - 884 | - |
dc.relation.isPartOf | PLANT AND CELL PHYSIOLOGY | - |
dc.citation.title | PLANT AND CELL PHYSIOLOGY | - |
dc.citation.volume | 52 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 874 | - |
dc.citation.endPage | 884 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Plant Sciences | - |
dc.relation.journalResearchArea | Cell Biology | - |
dc.relation.journalWebOfScienceCategory | Plant Sciences | - |
dc.relation.journalWebOfScienceCategory | Cell Biology | - |
dc.subject.keywordPlus | ABSCISIC-ACID | - |
dc.subject.keywordPlus | OIL BODIES | - |
dc.subject.keywordPlus | CA2+-BINDING PROTEIN | - |
dc.subject.keywordPlus | DROUGHT STRESS | - |
dc.subject.keywordPlus | TOLERANCE | - |
dc.subject.keywordPlus | CALCIUM | - |
dc.subject.keywordPlus | PLANTS | - |
dc.subject.keywordPlus | DEHYDRATION | - |
dc.subject.keywordPlus | GERMINATION | - |
dc.subject.keywordPlus | CROSSTALK | - |
dc.subject.keywordAuthor | ABA response | - |
dc.subject.keywordAuthor | Arabidopsis thaliana | - |
dc.subject.keywordAuthor | CaBP | - |
dc.subject.keywordAuthor | Caleosin | - |
dc.subject.keywordAuthor | Drought tolerance | - |
dc.subject.keywordAuthor | Stomatal control | - |
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