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- Title
Ecological function and application of toxin β-ODAP in grass pea (Lathyrus sativus).
- Authors
XIONG Jun-lan; BAI Xue; BATOOL Asfa; KONG Hai-yan; TAN Rui-yue; WANG Ya-fu; LI Zhi-xiao; XIONG You-cai
- Abstract
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.
- Subjects
LATHYRUS sativus; TOXINS; PLANT ecology; NEUROTOXICOLOGY; ZINC ions
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2014, Vol 25, Issue 4, p1197
- ISSN
1001-9332
- Publication type
Article