Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance
文献类型:期刊论文
作者 | Li, Tao ; Lin, Ge ; Zhang, Xin ; Chen, Yongliang ; Zhang, Shubin ; Chen, Baodong |
刊名 | MYCORRHIZA
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出版日期 | 2014 |
卷号 | 24期号:8页码:595-602 |
关键词 | Arbuscular mycorrhiza Drought tolerance Rhizophagus intraradices Barley Root hairs |
ISSN号 | 0940-6360 |
中文摘要 | Both arbuscular mycorrhizal (AM) fungi and root hairs play important roles in plant uptake of water and mineral nutrients. To reveal the relative importance of mycorrhiza and root hairs in plant water relations, a bald root barley (brb) mutant and its wild type (wt) were grown with or without inoculation of the AM fungus Rhizophagus intraradices under well-watered or drought conditions, and plant physiological traits relevant to drought stress resistance were recorded. The experimental results indicated that the AM fungus could almost compensate for the absence of root hairs under drought-stressed conditions. Moreover, phosphorus (P) concentration, leaf water potential, photosynthetic rate, transpiration rate, stomatal conductance, and water use efficiency were significantly increased by R. intraradices but not by root hairs, except for shoot P concentration and photosynthetic rate under the drought condition. Root hairs even significantly decreased root P concentration under drought stresses. These results confirm that AM fungi can enhance plant drought tolerance by improvement of P uptake and plant water relations, which subsequently promote plant photosynthetic performance and growth, while root hairs presumably contribute to the improvement of plant growth and photosynthetic capacity through an increase in shoot P concentration. |
WOS记录号 | WOS:000343721000003 |
公开日期 | 2015-03-23 |
源URL | [http://ir.rcees.ac.cn/handle/311016/9217] ![]() |
专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
推荐引用方式 GB/T 7714 | Li, Tao,Lin, Ge,Zhang, Xin,et al. Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance[J]. MYCORRHIZA,2014,24(8):595-602. |
APA | Li, Tao,Lin, Ge,Zhang, Xin,Chen, Yongliang,Zhang, Shubin,&Chen, Baodong.(2014).Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance.MYCORRHIZA,24(8),595-602. |
MLA | Li, Tao,et al."Relative importance of an arbuscular mycorrhizal fungus (Rhizophagus intraradices) and root hairs in plant drought tolerance".MYCORRHIZA 24.8(2014):595-602. |
入库方式: OAI收割
来源:生态环境研究中心
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