氟啶酮
脱落酸
紫黄质
新黄嘌呤
叶黄素
花药黄素
玉米黄质
类胡萝卜素
叶黄素
普通大麦
质体
生物
植物
化学
生物化学
禾本科
叶绿体
基因
作者
Patricia E. Gamble,John E. Mullet
出处
期刊:European journal of biochemistry
[Wiley]
日期:1986-10-01
卷期号:160 (1): 117-121
被引量:106
标识
DOI:10.1111/j.1432-1033.1986.tb09947.x
摘要
Treatment of dark-grown barley with 0.1 mM fluridone inhibited carotenoid accumulation but did not alter plastid biogenesis. Plastids isolated from dark-grown control and dark-grown fluridone-treated plants were similar in size and protein compositions. Dehydration of dark-grown control barley caused abscisic acid levels to increase 30-40-fold in 4 h, while plants treated with 0.1 mM fluridone accumulated very little abscisic acid in response to dehydration. These results suggest that fluridone-treated plants do not accumulate abscisic acid because of carotenoid deficiency rather than plastid dysfunction. Dark-grown barley plants treated with 0.31 microM fluridone accumulated low levels of carotenoids. Dehydration of these plants resulted in a 4-8-fold increase in abscisic acid and a decrease in antheraxanthin, violaxanthin and neoxanthin, but no change in beta-carotene or lutein plus zeaxanthin levels. This result is consistent with the suggestion that xanthophylls are precursors to abscisic acid in dehydrated plants.
科研通智能强力驱动
Strongly Powered by AbleSci AI