Comparative Proteomic Analysis of Aluminum Tolerance in Tibetan Wild and Cultivated Barleys

被引：28
作者：
Dai, Huaxin [1 ]
Cao, Fangbin [1 ]
Chen, Xianhong [1 ]
Zhang, Mian [1 ]
Ahmed, Imrul Mosaddek [1 ]
Chen, Zhong-Hua [2 ]
Li, Chengdao [3 ]
Zhang, Guoping [1 ]
Wu, Feibo [1 ]
机构：
[1] Zhejiang Univ, Dept Agron, Coll Agr & Biotechnol, Hangzhou 310003, Zhejiang, Peoples R China
[2] Univ Western Sydney, Sch Sci & Hlth, Penrith, NSW 1797, Australia
[3] Govt Western Australia, Dept Agr, S Perth, WA, Australia
来源：
PLOS ONE | 2013年 / 8卷 / 05期
基金：
中国国家自然科学基金;
关键词：
ADENOSYLMETHIONINE SYNTHETASE GENE; CITRATE SECRETION; OXIDATIVE STRESS; EXPRESSION; RESISTANCE; ARABIDOPSIS; PLANTS; ACID; BIOSYNTHESIS; ACCUMULATION;
D O I：
10.1371/journal.pone.0063428
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Aluminum (Al) toxicity is a major limiting factor for plant production in acid soils. Wild barley germplasm is rich in genetic diversity and may provide elite genes for crop Al tolerance improvement. The hydroponic-experiments were performed to compare proteomic and transcriptional characteristics of two contrasting Tibetan wild barley genotypes Al-resistant/tolerant XZ16 and Al-sensitive XZ61 as well as Al-resistant cv. Dayton. Results showed that XZ16 had less Al uptake and translocation than XZ61 and Dayton under Al stress. Thirty-five Al-tolerance/resistance-associated proteins were identified and categorized mainly in metabolism, energy, cell growth/division, protein biosynthesis, protein destination/storage, transporter, signal transduction, disease/defense, etc. Among them, 30 were mapped on barley genome, with 16 proteins being exclusively up-regulated by Al stress in XZ16, including 4 proteins (S-adenosylmethionine-synthase 3, ATP synthase beta subunit, triosephosphate isomerase, Bp2A) specifically expressed in XZ16 but not Dayton. The findings highlighted the significance of specific-proteins associated with Al tolerance, and verified Tibetan wild barley as a novel genetic resource for Al tolerance.
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页数：14
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