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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/ers038
|2 doi
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|a pubmed25n0719.xml
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|a (NLM)22371077
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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1 |
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|a Yang, Zhong-Bao
|e verfasserin
|4 aut
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|a Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris)
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.09.2012
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|a Date Revised 22.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cytokinins
|2 NLM
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|a Glucans
|2 NLM
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|a Abscisic Acid
|2 NLM
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|a 72S9A8J5GW
|2 NLM
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|a Isopentenyladenosine
|2 NLM
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| 650 |
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|a 7724-76-7
|2 NLM
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| 650 |
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|a zeatin riboside
|2 NLM
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| 650 |
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|a 7LG4D082A9
|2 NLM
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| 650 |
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|a callose
|2 NLM
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| 650 |
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|a 9064-51-1
|2 NLM
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| 650 |
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|a Aluminum
|2 NLM
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| 650 |
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|a CPD4NFA903
|2 NLM
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| 700 |
1 |
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|a Eticha, Dejene
|e verfasserin
|4 aut
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| 700 |
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|a Albacete, Alfonso
|e verfasserin
|4 aut
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| 700 |
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|a Rao, Idupulapati Madhusudana
|e verfasserin
|4 aut
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|a Roitsch, Thomas
|e verfasserin
|4 aut
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| 700 |
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|a Horst, Walter Johannes
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 63(2012), 8 vom: 07. Mai, Seite 3109-25
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:63
|g year:2012
|g number:8
|g day:07
|g month:05
|g pages:3109-25
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|u http://dx.doi.org/10.1093/jxb/ers038
|3 Volltext
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