DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wang, Mei | - |
dc.contributor.author | Lee, Juhun | - |
dc.contributor.author | Choi, Bongsoo | - |
dc.contributor.author | Park, Youngmin | - |
dc.contributor.author | Sim, Hee-Jung | - |
dc.contributor.author | Kim, Hyeran | - |
dc.contributor.author | Hwang, Inhwan | - |
dc.date.accessioned | 2018-06-15T05:53:37Z | - |
dc.date.available | 2018-06-15T05:53:37Z | - |
dc.date.created | 2018-03-19 | - |
dc.date.issued | 2018-02 | - |
dc.identifier.issn | 1664-462X | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/50955 | - |
dc.description.abstract | Plants need to respond to various environmental stresses such as abiotic stress for proper development and growth. The responses to abiotic stress can be biochemically demanding, resulting in a trade-off that negatively affects plant growth and development. Thus, plant stress responses must be fine-tuned depending on the stress severity and duration. Abscisic acid, a phytohormone, plays a key role in responses to abiotic stress. Here, we investigated time-dependent physiological and molecular responses to long-term ABA treatment in Arabidopsis as an approach to gain insight into the plant responses to long-term abiotic stress. Upon ABA treatment, the amount of cellular ABA increased to higher levels, reaching to a peak at 24 h after treatment (HAT), and then gradually decreased with time whereas ABA-GE was maintained at lower levels until 24 HAT and then abruptly increased to higher levels at 48 HAT followed by a gradual decline at later time points. Many genes involved in dehydration stress responses, ABA metabolism, chloroplast biogenesis, and chlorophyll degradation were strongly expressed at early time points with a peak at 24 or 48 HAT followed by gradual decreases in induction fold or even suppression at later time points. At the physiological level, long-term ABA treatment caused leaf yellowing, reduced chlorophyll levels, and inhibited chloroplast division in addition to the growth suppression whereas short-term ABA treatment did not affect chlorophyll levels. Our results indicate that the duration of ABA treatment is a crucial factor in determining the mode of ABA-mediated signaling and plant responses: active mobilization of cellular resources at early time points and suppressive responses at later time points. | - |
dc.language | English | - |
dc.publisher | Frontiers Media S.A. | - |
dc.relation.isPartOf | Frontiers in Plant Science | - |
dc.title | Physiological and Molecular Processes Associated with Long Duration of ABA Treatment | - |
dc.type | Article | - |
dc.identifier.doi | 10.3389/fpls.2018.00176 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Frontiers in Plant Science, v.9 | - |
dc.identifier.wosid | 000425612100001 | - |
dc.date.tcdate | 2018-03-23 | - |
dc.citation.title | Frontiers in Plant Science | - |
dc.citation.volume | 9 | - |
dc.contributor.affiliatedAuthor | Choi, Bongsoo | - |
dc.contributor.affiliatedAuthor | Hwang, Inhwan | - |
dc.identifier.scopusid | 2-s2.0-85043347929 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ABSCISIC-ACID HOMEOSTASIS | - |
dc.subject.keywordPlus | OSMOTIC-STRESS RESPONSES | - |
dc.subject.keywordPlus | ARABIDOPSIS-THALIANA | - |
dc.subject.keywordPlus | LEAF SENESCENCE | - |
dc.subject.keywordPlus | CHLOROPLAST DEVELOPMENT | - |
dc.subject.keywordPlus | SIGNAL-TRANSDUCTION | - |
dc.subject.keywordPlus | WATER-DEFICIT | - |
dc.subject.keywordPlus | CHLOROPHYLL DEGRADATION | - |
dc.subject.keywordPlus | ABIOTIC STRESS | - |
dc.subject.keywordPlus | STAY-GREEN | - |
dc.subject.keywordAuthor | ABA response | - |
dc.subject.keywordAuthor | chlorophyll | - |
dc.subject.keywordAuthor | chloroplast | - |
dc.subject.keywordAuthor | long term ABA effect | - |
dc.subject.keywordAuthor | photosynthesis | - |
dc.subject.keywordAuthor | short term ABA effect | - |
dc.subject.keywordAuthor | transitional response | - |
dc.relation.journalWebOfScienceCategory | Plant Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Plant Sciences | - |
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