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Title of Journal: Amino Acids

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Abbravation: Amino Acids

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Springer Vienna

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DOI

10.1007/bf00323610

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ISSN

1438-2199

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Proteomics analysis of sensitive and tolerant barl

Authors: Rehana Kausar Muhammad Arshad Armghan Shahzad Setsuko Komatsu
Publish Date: 2012/06/17
Volume: 44, Issue: 2, Pages: 345-359
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Abstract

Drought is a severe environmental constraint to plant productivity and an important factor limiting barley yield To investigate the initial response of barley to drought stress changes in protein profile were analyzed using a proteomics technique Threedayold barley seedlings of sensitive genotype 004186 and tolerant genotype 004223 were given two treatments one with 20  polyethylene glycol and the second with drought induced by withholding water After 3 days of treatments proteins were extracted from shoots and separated by 2dimensional polyacrylamide gel electrophoresis Metabolism related proteins were decreased in the sensitive genotype under drought however they were increased in the tolerant genotype Photosynthetic related proteins were decreased and increased among the three sensitive and three tolerant genotypes respectively In addition amino acid synthesis and degradation related proteins were increased and decreased among the three tolerant genotypes These results suggest that chloroplastic metabolism and energy related proteins might play a significant role in the adaptation process of barley seedlings under drought stressThe authors thank Dr Yohei Nanjo Dr Keito Nishizawa and Mr Mehdi Ghaffari at National Institute of Crop Science for their valuable comments and discussion We also thank Dr FayyazulHassan Sahi and Dr Rehmatullah Qureshi for their valuable suggestions We thank Higher Education Commission of Pakistan for awarding International Research Support Initiative Scholarship grant and National Institute of Crop Science Japan for providing the research facilities

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