Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris)
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. Ro...
| Autores principales: | , , , , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2012
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/42515 |
| _version_ | 1855542258775883776 |
|---|---|
| author | Yang, Z.B. Eticha, D Albacete, A Rao, Idupulapati M. Roitsch, T Horst, Walter J. |
| author_browse | Albacete, A Eticha, D Horst, Walter J. Rao, Idupulapati M. Roitsch, T Yang, Z.B. |
| author_facet | Yang, Z.B. Eticha, D Albacete, A Rao, Idupulapati M. Roitsch, T Horst, Walter J. |
| author_sort | Yang, Z.B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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. |
| format | Journal Article |
| id | CGSpace42515 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace425152024-08-27T10:37:23Z Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) Yang, Z.B. Eticha, D Albacete, A Rao, Idupulapati M. Roitsch, T Horst, Walter J. phaseolus vulgaris abscisic acid aluminium drought tolerance soil toxicity gene expression genetic markers acido abscísico aluminio tolerancia a la sequía toxicidad del suelo expresion génica marcadores genéticos 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. 2012-05 2014-09-24T07:58:06Z 2014-09-24T07:58:06Z Journal Article https://hdl.handle.net/10568/42515 en Open Access Oxford University Press Zhong-Bao Yang, Dejene Eticha, Alfonso Albacete, Idupulapati Madhusudana Rao, Thomas Roitsch, and Walter Johannes Horst Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris). J. Exp. Bot. (2012) 63 (8): 3109-3125 first published online February 27, 2012 doi:10.1093/jxb/ers038 |
| spellingShingle | phaseolus vulgaris abscisic acid aluminium drought tolerance soil toxicity gene expression genetic markers acido abscísico aluminio tolerancia a la sequía toxicidad del suelo expresion génica marcadores genéticos Yang, Z.B. Eticha, D Albacete, A Rao, Idupulapati M. Roitsch, T Horst, Walter J. Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title | Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title_full | Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title_fullStr | Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title_full_unstemmed | Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title_short | Physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean (Phaseolus vulgaris) |
| title_sort | physiological and molecular analysis of the interaction between aluminium toxicity and drought stress in common bean phaseolus vulgaris |
| topic | phaseolus vulgaris abscisic acid aluminium drought tolerance soil toxicity gene expression genetic markers acido abscísico aluminio tolerancia a la sequía toxicidad del suelo expresion génica marcadores genéticos |
| url | https://hdl.handle.net/10568/42515 |
| work_keys_str_mv | AT yangzb physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris AT etichad physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris AT albacetea physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris AT raoidupulapatim physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris AT roitscht physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris AT horstwalterj physiologicalandmolecularanalysisoftheinteractionbetweenaluminiumtoxicityanddroughtstressincommonbeanphaseolusvulgaris |