| 铝胁迫下植物根系的有机酸分泌及其解毒机理 |
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| 引用本文： | 尤江峰,杨振明.铝胁迫下植物根系的有机酸分泌及其解毒机理[J].植物生理与分子生物学学报,2005,31(2):111-118. |
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| 作者姓名： | 尤江峰 杨振明 |
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| 作者单位： | 1. 吉林大学农学部,吉林长春,130062;浙江大学环境与资源学院,浙江杭州,310029
2. 吉林大学农学部,吉林长春,130062 |
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| 基金项目： | 国家自然科学基金，教育部留学回国人员科研启动基金 |
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| 摘 要： | 酸性土壤中的铝毒害问题,已成为限制植物生长发育的主要因素之一.耐铝植物通过根系分泌有机酸来解除或减轻铝的毒害是外部解铝毒的重要机制.文章对铝胁迫下植物根系分泌有机酸的种类,有机酸解铝毒机理、解铝毒能力,有机酸分泌方式及调控其分泌的主要因素等相关研究进行综述.
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| 关 键 词： | 铝胁迫 解铝毒作用 有机酸 |
| 修稿时间： | 2004年5月26日 |
Organic Acid Secretion and Its Detoxificaton Mechanism in Plant Roots Under Aluminum Stress |
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| YOU Jiang-feng,YANG Zhen-ming.Organic Acid Secretion and Its Detoxificaton Mechanism in Plant Roots Under Aluminum Stress[J].Journal Of Plant Physiology and Molecular Biology,2005,31(2):111-118. |
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| Authors: | YOU Jiang-feng YANG Zhen-ming |
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| Institution: | Division of Agronomy, Jilin University, Changchun 130062, China. |
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| Abstract: | Phytotoxicity of Al is becoming oneof the most serious problems in limiting plantgrowth on acid soils. Under Al stress, a numberof plant species, cultivars or genotypes exhibitinheritable tolerance by organic acid secretionwhich is specific to Al stress and localized tothe root apex. Citric acid, oxalic acid and malicacid are thought to be the most effective organicacids in detoxifying Al. Organic acid detoxifiesAl both extracellular and intracellular. Two exu-dation patterns and their related speculation areintroduced in this review. The possible factors responsible for the organic acid secretion arediscussed, which are also the research focusesin this field. At last, we put forward our perspec-tive in the field. |
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| Keywords: | aluminum stress detoxifying aluminum organicacid |
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