Department of Biological Science, Tohoku University, Kawauchi, 980, Sendai, Japan.
Planta. 1980 Jun;149(1):64-8. doi: 10.1007/BF00386229.
Ethylene production by axial and cotyledonary tissues excised from Xanthium pennsylvanicum Wallr. seeds was markedly (up to 5-fold) stimulated by the D-isomers of phenylalanine, valine, leucine, threonine, methionine and eithionine while the L-isomers caused no such effect. Responsiveness of these seed tissues to D-methionine appeared soon after the beginning of imbibition, reached a maximum after 6-12 and 12-24 h for the axial and cotyledonary tissues, respectively, and then decreased sharply. D-Phenylalanine and D-methionine also stimulated ethylene production in seed tissues of X. canadense Mill. and in cotyledonary segments from seeds of Helianthus annuus L., Cucurbita moschata Duch. and Vigna radiata (L.) Wilczek. The endogeneous ethylene production and the D-amino-acid-stimulated ethylene production by the seed segments was strongly inhibited by aminoethoxyvinyl glycine, a potent inhibitor of ethylene synthesis from L-methionine.
从黄花草木樨（Xanthium pennsylvanicum Wallr.）种子的轴向和子叶组织中切下的组织，其乙烯的产生明显（高达 5 倍）被苯丙氨酸、缬氨酸、亮氨酸、苏氨酸、蛋氨酸和乙硫氨酸的 D-异构体所刺激，而 L-异构体则没有这种效果。这些种子组织对 D-蛋氨酸的反应性在吸胀开始后不久就出现了，在轴向和子叶组织中分别在 6-12 小时和 12-24 小时达到最大值，然后急剧下降。D-苯丙氨酸和 D-蛋氨酸也刺激了 X. canadense Mill. 种子组织和向日葵（Helianthus annuus L.）、南瓜（Cucurbita moschata Duch.）和豇豆（Vigna radiata (L.) Wilczek.）种子的子叶段中的乙烯产生。氨基乙氧基乙烯基甘氨酸是一种从 L-蛋氨酸合成乙烯的有效抑制剂，它强烈抑制了种子片段的内源性乙烯产生和 D-氨基酸刺激的乙烯产生。
