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代谢相关氨基酸对多细胞植物生长的协同作用。

Synergistic effects of metabolically related amino acids on the growth of a multicellular plant.

机构信息

Department of Bacteriology and Botany, Biological Research Laboratories, Syracuse University, Syracuse, New York 13210.

出版信息

Plant Physiol. 1969 Nov;44(11):1601-8. doi: 10.1104/pp.44.11.1601.

Abstract

The effects of several amino acids related to the metabolism of aspartic acid on the growth and development of gemmalings of the liverwort Marchantia polymorpha were investigated under axenic conditions. Lysine and theonine synergistically inhibit the growth of these plants and cause a loss of normal pigmentation at concentrations as low as 1 mum. These effects are highly specific for this pair of amino acids, are partially reversible upon removal of the effectors, and can be prevented by low concentrations of methionine or its metabolic precursor, homoserine. Alterations in the growth and development of gemmalings in the presence of natural amino acids are discussed in relation to metabolic regulatory mechanisms which have been well established in microorganisms.

摘要

在无菌条件下,研究了几种与天冬氨酸代谢有关的氨基酸对叉叶苔属 gemmalings 生长发育的影响。赖氨酸和苏氨酸协同抑制这些植物的生长,并在低至 1 mum 的浓度下导致正常色素沉着丧失。这些效应是这对氨基酸特有的,在去除效应物后部分可逆,并且可以通过低浓度的蛋氨酸或其代谢前体高丝氨酸来预防。讨论了在天然氨基酸存在下 gemmalings 的生长和发育的变化与已在微生物中建立的代谢调节机制有关。

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