dc.identifier.uri |
http://dx.doi.org/10.15488/456 |
|
dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/479 |
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dc.contributor.author |
Yang, Zhong-Bao
|
|
dc.contributor.author |
Eticha, Dejene
|
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dc.contributor.author |
Albacete, Alfonso
|
|
dc.contributor.author |
Madhusudana Rao, Idupulapati
|
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dc.contributor.author |
Roitsch, Thomas
|
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dc.contributor.author |
Horst, Walter Johannes
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dc.date.accessioned |
2016-08-29T13:44:52Z |
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dc.date.available |
2016-08-29T13:44:52Z |
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dc.date.issued |
2012-05 |
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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 |
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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 |
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dc.language.iso |
eng |
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dc.publisher |
Oxford : Oxford Univ. Press |
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dc.relation.ispartofseries |
Journal of Experimental Botany 63 (2012) |
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dc.rights |
CC BY-NC 3.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by-nc/3.0/ |
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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) |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
0022-0957 |
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dc.relation.doi |
http://dx.doi.org/10.1093/jxb/ers038 |
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dc.bibliographicCitation.issue |
8 |
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dc.bibliographicCitation.volume |
63 |
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dc.bibliographicCitation.firstPage |
3109 |
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dc.bibliographicCitation.lastPage |
3125 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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