豆科植物中 l-瓜氨酸和 l-瓜氨酸的代谢。
Metabolism of l-Canavanine and l-Canaline in Leguminous Plants.
机构信息
T. H. Morgan School of Biological Sciences, University of Kentucky, Lexington, Kentucky 40506.
出版信息
Plant Physiol. 1990 Sep;94(1):1-3. doi: 10.1104/pp.94.1.1.
Abstract
Massive accumulation of l-canavanine, the 2-amino-4-(guanidinooxy)butyric acid structural analog of l-arginine, occurs in many legumes. Accumulation of large amounts of this nonprotein amino acid results in large part from canavanine's protective efficacy; it forms an effective chemical barrier to predation, disease, and even competition with other plants. Diversion of metabolic resources for the synthesis and storage of appreciable canavanine does not place an inordinate burden on the plant. Catabolism of this nonprotein amino acid provides respiratory carbon, generates essential primary metabolites, and ammoniacal nitrogen for the developing plant.
摘要
大量的 L-刀豆氨酸（L-精氨酸的 2-氨基-4-（胍基氧基）丁氨酸结构类似物）在许多豆类中积累。这种大量非蛋白氨基酸的积累在很大程度上归因于刀豆氨酸的保护效力；它形成了一种有效的化学防御，防止捕食、疾病，甚至与其他植物竞争。为合成和储存可观的刀豆氨酸而转移代谢资源不会给植物带来过重的负担。这种非蛋白氨基酸的分解代谢为发育中的植物提供了呼吸碳、生成必需的初级代谢物和氨态氮。
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本文引用的文献
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Plant Physiol. 1982 May;69(5):1066-9. doi: 10.1104/pp.69.5.1066.
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Interaction of L-canaline with ornithine aminotransferase of the tobacco hornworm, Manduca sexta (Sphingidae).L-刀豆氨酸与烟草天蛾（烟草天蛾属，天蛾科）鸟氨酸转氨酶的相互作用。
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Non-protein aminoacid-insect interactions--I. Growth effects and symptomology of L-canavanine consumption by tobacco hornworm, Manduca sexta (L.).非蛋白质氨基酸与昆虫的相互作用——I. 烟草天蛾（Manduca sexta (L.)）摄入L-刀豆氨酸的生长效应及症状学
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