A Novel Non-coding RNA Regulates Drought Stress Tolerance in Arabidopsis thaliana

Handle URI:
http://hdl.handle.net/10754/316607
Title:
A Novel Non-coding RNA Regulates Drought Stress Tolerance in Arabidopsis thaliana
Authors:
Albesher, Nour H.
Abstract:
Drought (soil water deficit) as a major adverse environmental condition can result in serious reduction in plant growth and crop production. Plants respond and adapt to drought stresses by triggering various signalling pathways leading to physiological, metabolic and developmental changes that may ultimately contribute to enhanced tolerance to the stress. Here, a novel non-coding RNA (ncRNA) involved in plant drought stress tolerance was identified. We showed that increasing the expression of this ncRNA led to enhanced sensitivity during seed germination and seedling growth to the phytohormone abscisic acid. The mutant seedlings are also more sensitive to osmotic stress inhibition of lateral root growth. Consistently, seedlings with enhanced expression of this ncRNA exhibited reduced transiprational water loss and were more drought-tolerant than the wild type. Future analyses of the mechanism for its role in drought tolerance may help us to understand how plant drought tolerance could be further regulated by this novel ncRNA.
Advisors:
Xiong, Liming ( 0000-0001-8099-0806 )
Committee Member:
Cui, Peng; Gehring, Christoph A ( 0000-0003-4355-4591 )
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Program:
Bioscience
Issue Date:
May-2014
Type:
Thesis
Appears in Collections:
Bioscience Program; Theses; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.advisorXiong, Limingen
dc.contributor.authorAlbesher, Nour H.en
dc.date.accessioned2014-05-07T13:10:14Zen
dc.date.available2014-05-07T13:10:14Zen
dc.date.issued2014-05en
dc.identifier.urihttp://hdl.handle.net/10754/316607en
dc.description.abstractDrought (soil water deficit) as a major adverse environmental condition can result in serious reduction in plant growth and crop production. Plants respond and adapt to drought stresses by triggering various signalling pathways leading to physiological, metabolic and developmental changes that may ultimately contribute to enhanced tolerance to the stress. Here, a novel non-coding RNA (ncRNA) involved in plant drought stress tolerance was identified. We showed that increasing the expression of this ncRNA led to enhanced sensitivity during seed germination and seedling growth to the phytohormone abscisic acid. The mutant seedlings are also more sensitive to osmotic stress inhibition of lateral root growth. Consistently, seedlings with enhanced expression of this ncRNA exhibited reduced transiprational water loss and were more drought-tolerant than the wild type. Future analyses of the mechanism for its role in drought tolerance may help us to understand how plant drought tolerance could be further regulated by this novel ncRNA.en
dc.language.isoenen
dc.subjectAbiotic Stressen
dc.subjectDroughten
dc.subjectncRNAen
dc.subjectarabidopsis thalianaen
dc.titleA Novel Non-coding RNA Regulates Drought Stress Tolerance in Arabidopsis thalianaen
dc.typeThesisen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberCui, Pengen
dc.contributor.committeememberGehring, Christoph Aen
thesis.degree.disciplineBioscienceen
thesis.degree.nameMaster of Scienceen
dc.person.id124262en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.