Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris)

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dc.identifier.uri http://dx.doi.org/10.15488/456
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/479
dc.contributor.author Yang, Zhong-Bao
dc.contributor.author Eticha, Dejene
dc.contributor.author Albacete, Alfonso
dc.contributor.author Madhusudana Rao, Idupulapati
dc.contributor.author Roitsch, Thomas
dc.contributor.author Horst, Walter Johannes
dc.date.accessioned 2016-08-29T13:44:52Z
dc.date.available 2016-08-29T13:44:52Z
dc.date.issued 2012-05
dc.identifier.citation Yang, Zhong-Bao; Eticha, Dejene; Albacete, Alfonso; Madhusudana Rao, Idupulapati; Roitsch, Thomas; Horst, Walter Johannes: Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris). In: Journal of Experimental Botany 63 (2012), S. 3109-3125. DOI: http://dx.doi.org/10.1093/jxb/ers038
dc.description.abstract Aluminium (Al) toxicity and drought are two major factors limiting common bean (Phaseolus vulgaris) production in the tropics. Short-term effects of Al toxicity and drought stress on root growth in acid, Al-toxic soil were studied, with special emphasis on Al-drought interaction in the root apex. Root elongation was inhibited by both Al and drought. Combined stresses resulted in a more severe inhibition of root elongation than either stress alone. This result was different from the alleviation of Al toxicity by osmotic stress (-0.60 MPa polyethylene glycol) in hydroponics. However, drought reduced the impact of Al on the root tip, as indicated by the reduction of Al-induced callose formation and MATE expression. Combined Al and drought stress enhanced up-regulation of ACCO expression and synthesis of zeatin riboside, reduced drought-enhanced abscisic acid (ABA) concentration, and expression of NCED involved in ABA biosynthesis and the transcription factors bZIP and MYB, thus affecting the regulation of ABA-dependent genes (SUS, PvLEA18, KS-DHN, and LTP) in root tips. The results provide circumstantial evidence that in soil, drought alleviates Al injury, but Al renders the root apex more drought-sensitive, particularly by impacting the gene regulatory network involved in ABA signal transduction and cross-talk with other phytohormones necessary for maintaining root growth under drought. eng
dc.description.sponsorship BMZ/GTZ/05.7860.9-001.00
dc.description.sponsorship BMZ/GTZ/05.7860.9-001.00
dc.language.iso eng
dc.publisher Oxford : Oxford Univ. Press
dc.relation.ispartofseries Journal of Experimental Botany 63 (2012)
dc.rights CC BY-NC 3.0
dc.rights.uri https://creativecommons.org/licenses/by-nc/3.0/
dc.subject abscisic acid eng
dc.subject aluminum eng
dc.subject callose eng
dc.subject common bean eng
dc.subject cytokinin eng
dc.subject drought eng
dc.subject gene expression eng
dc.subject root growth eng
dc.subject low water potentials eng
dc.subject abscisic-acid accumulation eng
dc.subject root-growth eng
dc.subject shoot growth eng
dc.subject arabidopsis-thaliana eng
dc.subject gene-expression eng
dc.subject 9-cis-epoxycarotenoid dioxygenase eng
dc.subject ethylene biosynthesis eng
dc.subject callose formation eng
dc.subject endogenous aba eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris)
dc.type article
dc.type Text
dc.relation.issn 0022-0957
dc.relation.doi http://dx.doi.org/10.1093/jxb/ers038
dc.bibliographicCitation.issue 8
dc.bibliographicCitation.volume 63
dc.bibliographicCitation.firstPage 3109
dc.bibliographicCitation.lastPage 3125
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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