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当前位置: 首页 > 文章 > 山黧豆毒素β-ODAP的生态学功能及应用 应用生态学报 2014,25 (4) 1197-1205
Position: Home > Articles > Ecological function and application of toxin β-ODAP in grass pea (Lathyrus sativus) Chinese Journal of Applied Ecology 2014,25 (4) 1197-1205

山黧豆毒素β-ODAP的生态学功能及应用

作  者：
熊俊兰;白雪;Asfa BATOOL;孔海燕;谭瑞玥;王亚馥;李志孝;熊友才
单  位：
兰州大学生命科学学院/草地农业生态系统国家重点实验室/干旱农业生态研究所
关键词：
山黧豆;β-N-草酰-L-α,β-二氨基丙氨酸;神经毒素;生态学功能;干旱适应性
摘  要：
山黧豆是一种具有广谱抗逆性且营养丰富的豆科作物,但其含有β-N-草酰-L-α,β-二氨基丙氨酸(β-N-oxalyl-L-α,β-diaminopropionic acid,β-ODAP)神经毒素,人畜长期大量食用会导致神经性中毒,因此限制了山黧豆种质资源的利用.本文综述了干旱胁迫下山黧豆毒素β-ODAP对植株渗透调节和生长调节的影响,以及β-ODAP的分析方法、毒理机理和实用价值方面的研究进展,并对低毒和无毒品种选育策略进行了总结.干旱胁迫下,山黧豆合成大量毒素β-ODAP,其含量随胁迫程度增强而逐渐升高.β-ODAP可为植株生长和种子发育提供氮源,并积极参与清除活性氧过程,作为小分子可溶性氨基酸参与渗透调节,作为锌离子转运体参与根瘤发育.而含硫氨基酸(甲硫氨酸和半胱氨酸)含量升高可使山黧豆毒性显著降低.近年来,在山黧豆种质资源收集、杂交育种,以及通过组织培养和基因操作等技术进行低毒或无毒山黧豆品种选育方面做了大量工作.β-ODAP可通过破坏细胞内Ca2+稳态和作为谷氨酸类似物引发兴奋性中毒,但在止血和抗肿瘤等方面有重要的药用价值.
译  名：
Ecological function and application of toxin β-ODAP in grass pea (Lathyrus sativus)
作  者：
XIONG Jun-lan;BAI Xue;BATOOL Asfa;KONG Hai-yan;TAN Rui-yue;WANG Ya-fu;LI Zhi-xiao;XIONG You-cai;School of Life Sciences/State Key Laboratory of Grassland Agro-ecosystem/Institute of Arid Agroecology,Lanzhou University;
关键词：
Lathyrus sativus;;β-N-oxalyl-L-α,β-diaminopropionic acid(β-ODAP);;neurotoxin;;ecological function;;drought adaptability
摘  要：
Grass pea(Lathyrus sativus) is a legume with various adverse adaptability and rich nutrition.However,it can lead to the human and animal neurotoxicity after long-term consumption due to its neurotoxin,β-N-oxalyl-L-α,β-diaminopropionic acid(β-ODAP),limiting its utilization.This paper summarized the influences of β-ODAP on osmotic adjustment and growth regulation in grass pea under drought stress,the research progress in analysis methods,toxicological mechanisms and practical utility of β-ODAP,and the breeding strategies for low-and zero-β-ODAP.β-ODAP synthesis was found to be abundant in grass pea under drought stress and its content was enhanced gradually with the increasing extent of drought stress.β-ODAP could supply nitrogen for plant growth and seed development,scavenge reactive oxygen species(ROS),involve in osmotic adjustment as a soluble amino acid,transport zinc-ions as a carrier molecule,and impact nodule development.However,increasing the content of sulfur-containing amino acids(methionine and cysteine) could decrease the level of toxicity of grass pea.There were a lot of investigations on collecting genetic resources,cross breeding,tissue culture,and gene manipulation for low-and zero-toxin in grass pea in recent years.Although β-ODAP could induce excitotoxicity by damaging intracellular Ca2 +homeostasis and as glutamate analogues,it has medicinal value on hemostasis and anti-tumor.

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