Heterologous expression of EsABA1 enhances salt tolerance with increased accumulation of endogenous ABA in transgenic tobacco

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dc.contributor.authorSun, Yujun
dc.contributor.authorZhu, Lin
dc.contributor.authorGuo, Jiansheng
dc.contributor.authorZhou, Cheng
dc.date.accessioned2025-01-06T17:23:49Z
dc.date.available2025-01-06T17:23:49Z
dc.date.issued2014
dc.departmentAdana Alparslan Türkeş Bilim ve Teknoloji Üniversitesi
dc.description.abstractSalt stress can trigger several physiological responses in plants such as increased accumulation of ABA and antioxidantenzyme activities, which have been closely associated with the tolerance of plants to salt stress. In the present study a novel zeaxanthinepoxidase gene, designated EsABA1 , was isolated from Eutrema salsugineum. EsABA1 contained a full-length open reading frame(ORF) of 2001 bp, encoding 666 amino acids. Transcription of EsABA1 rapidly accumulated afer exposure to various abiotic stresses,suggesting that the EsABA1 gene was involved in multiple stress responses and tolerance. To further investigate the roles of EsABA1under salt-stress conditions, transgenic tobacco lines that ectopically overexpressed EsABA1 were obtained. Tese transgenic linesexhibited more tolerance to salt stress than wild-type (WT) plants, and overexpression of EsABA1 increased the contents of ABA andproline as compared to WT plants under salt-stress conditions. Moreover, the expression levels of stress responsive genes and activitiesof antioxidant enzymes were much higher in the EsABA1-overexpressing lines than in WT plants. Terefore, our fndings indicated thatthe elevated expression of EsABA1 enhanced the tolerance of transgenic tobacco plants to high salinity stress.
dc.identifier.endpage1079
dc.identifier.issn1300-008X
dc.identifier.issn1303-6106
dc.identifier.issue6
dc.identifier.startpage1067
dc.identifier.trdizinid164282
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/164282
dc.identifier.urihttps://hdl.handle.net/20.500.14669/948
dc.identifier.volume38
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofTurkish Journal of Botany
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.titleHeterologous expression of EsABA1 enhances salt tolerance with increased accumulation of endogenous ABA in transgenic tobacco
dc.typeArticle

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