Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum
Using antibodies raised against two sunflower small heat shock proteins (sHSPs), we have detected immunologically related proteins in unstressed vegetative tissues from the resurrection plant Craterostigma plantagineum. In whole plants, further accumulation of these polypeptides was induced by heat-shock or water-stress. In desiccation-intolerant Craterostigma callus tissue, we failed to detect sHSP-related polypeptides, but their expression, and the concurrent acquisition of desiccation tolerance was induced by exogenous abscisic acid (ABA) treatment. In untressed plants, the cross-reacting polypeptides were abundant in the roots and lower part of the shoots, where they showed homogeneous tissue-distributions. This constitutive expression is novel for vegetative tissues of higher plants, and resembles the expression patterns of sHSPs in desiccation-tolerant zygotic embryos and germinating seeds.
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Format: | artículo biblioteca |
Language: | English |
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Kluwer Academic Publishers
1995
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Subjects: | Craterostigma, Constitutive expression, Desiccation tolerance, Small heat-shock proteins, Vegetative tissues, Water-stress, Desiccation, Genes, |
Online Access: | http://hdl.handle.net/10261/32233 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 |
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dig-irnas-es-10261-322332018-09-12T09:19:03Z Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum Alamillo, J. Almoguera, Concepción Bartels, D. Jordano, Juan Comisión Interministerial de Ciencia y Tecnología, CICYT (España) European Commission Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes Using antibodies raised against two sunflower small heat shock proteins (sHSPs), we have detected immunologically related proteins in unstressed vegetative tissues from the resurrection plant Craterostigma plantagineum. In whole plants, further accumulation of these polypeptides was induced by heat-shock or water-stress. In desiccation-intolerant Craterostigma callus tissue, we failed to detect sHSP-related polypeptides, but their expression, and the concurrent acquisition of desiccation tolerance was induced by exogenous abscisic acid (ABA) treatment. In untressed plants, the cross-reacting polypeptides were abundant in the roots and lower part of the shoots, where they showed homogeneous tissue-distributions. This constitutive expression is novel for vegetative tissues of higher plants, and resembles the expression patterns of sHSPs in desiccation-tolerant zygotic embryos and germinating seeds. Was supported by a Human Capital Mobility EU fellowship. CA was a recipient of a post-doctoral ('reincorporación') contract from Spanish CICYT. Collaboration between the Cologne and Seville groups was inspired in meetings organized under the Interdrought'EU concerted action (AIR3-CT92-0742). Part of this work was funded through grant BIO93-0023, awarded to J.J. Peer reviewed 2011-02-10T14:46:26Z 2011-02-10T14:46:26Z 1995 artículo http://purl.org/coar/resource_type/c_6501 Plant Molecular Biology 29(5): 1093-1099 (1995) 0167-4412 http://hdl.handle.net/10261/32233 10.1007/BF00014981 1573-5028 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 en http://dx.doi.org//10.1007/BF00014981 open Kluwer Academic Publishers |
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Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes |
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Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes Alamillo, J. Almoguera, Concepción Bartels, D. Jordano, Juan Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
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Using antibodies raised against two sunflower small heat shock proteins (sHSPs), we have detected immunologically related proteins in unstressed vegetative tissues from the resurrection plant Craterostigma plantagineum. In whole plants, further accumulation of these polypeptides was induced by heat-shock or water-stress. In desiccation-intolerant Craterostigma callus tissue, we failed to detect sHSP-related polypeptides, but their expression, and the concurrent acquisition of desiccation tolerance was induced by exogenous abscisic acid (ABA) treatment. In untressed plants, the cross-reacting polypeptides were abundant in the roots and lower part of the shoots, where they showed homogeneous tissue-distributions. This constitutive expression is novel for vegetative tissues of higher plants, and resembles the expression patterns of sHSPs in desiccation-tolerant zygotic embryos and germinating seeds. |
author2 |
Comisión Interministerial de Ciencia y Tecnología, CICYT (España) |
author_facet |
Comisión Interministerial de Ciencia y Tecnología, CICYT (España) Alamillo, J. Almoguera, Concepción Bartels, D. Jordano, Juan |
format |
artículo |
topic_facet |
Craterostigma Constitutive expression Desiccation tolerance Small heat-shock proteins Vegetative tissues Water-stress Desiccation Genes |
author |
Alamillo, J. Almoguera, Concepción Bartels, D. Jordano, Juan |
author_sort |
Alamillo, J. |
title |
Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
title_short |
Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
title_full |
Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
title_fullStr |
Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
title_full_unstemmed |
Constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
title_sort |
constitutive expression of small heat shock proteins in vegetative tissues of the resurrection plant craterostigma plantagineum |
publisher |
Kluwer Academic Publishers |
publishDate |
1995 |
url |
http://hdl.handle.net/10261/32233 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100000780 |
work_keys_str_mv |
AT alamilloj constitutiveexpressionofsmallheatshockproteinsinvegetativetissuesoftheresurrectionplantcraterostigmaplantagineum AT almogueraconcepcion constitutiveexpressionofsmallheatshockproteinsinvegetativetissuesoftheresurrectionplantcraterostigmaplantagineum AT bartelsd constitutiveexpressionofsmallheatshockproteinsinvegetativetissuesoftheresurrectionplantcraterostigmaplantagineum AT jordanojuan constitutiveexpressionofsmallheatshockproteinsinvegetativetissuesoftheresurrectionplantcraterostigmaplantagineum |
_version_ |
1777664167345389568 |