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学科主题: 物理化学
题名: Alginate oligosaccharides enhanced Triticum aestivum L. tolerance to drought stress
作者: Liu, Hang1, 2;  Zhang, Yun-Hong1;  Yin, Heng1;  Wang, Wen-Xia1;  Zhao, Xiao-Ming1;  Du, Yu-Guang1
通讯作者: 杜昱光
关键词: Alginate oligosaccharides ;  Wheat (Triticum aestivum L.) ;  Drought resistance ;  Stress-responsive gene
刊名: PLANT PHYSIOLOGY AND BIOCHEMISTRY
发表日期: 2013
DOI: 10.1016/j.plaphy.2012.10.012
卷: 62, 期:62, 页:33-40
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1805
产权排名: 1,1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Plant Sciences
研究领域[WOS]: Plant Sciences
英文摘要: Alginate oligosaccharides (AOS) prepared from degradation of alginate is a potent plant elicitor. Hydroponic experiments were carried out to investigate the mechanism of AOS on improving Triticum aestivum L resistant ability to drought stress. Drought model was simulated by exposing the roots of wheat to polyethylene glycol-6000 (PEG-6000) solution (150 g L-1) for 4 days and the growth of wheat treated with PEG was significantly decreased. However, after AOS application, seedling and root length, fresh weight and relative water content of wheat were increased by 18%, 26%, 43% and 33% under dehydration status compared with that of PEG group, respectively. Moreover, the antioxidative enzymes activities were obviously enhanced and malondialdehyde (MDA) content was reduced by 37.9% in samples treated by AOS. Additionally, the drought resistant related genes involved in ABA signal pathway, such as late embryogenesis abundant protein 1 gene (LEA1), psbA gene, Sucrose non-fermenting 1-related protein kinase 2 gene (SnRK2) and Pyrroline-5-Carboxylate Synthetase gene (P5CS) were up-regulated by AOS. Our results suggested that AOS might regulate ABA-dependent signal pathway to enhance drought stress resistance of wheat during growth period. (C) 2012 Elsevier Masson SAS. All rights reserved.
关键词[WOS]: WATER-STRESS ;  SALT-STRESS ;  ROOT-GROWTH ;  SEED-GERMINATION ;  GENE-EXPRESSION ;  WHEAT CULTIVARS ;  PROTEIN-KINASE ;  PLANTS ;  RESPONSES ;  PROLINE
语种: 英语
WOS记录号: WOS:000314134600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117586
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning Prov Key Lab Carbohydrates, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Liu, Hang,Zhang, Yun-Hong,Yin, Heng,et al. Alginate oligosaccharides enhanced Triticum aestivum L. tolerance to drought stress[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2013,62(62):33-40.
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