DEVELOPMENTAL AND CIRCADIAN PATTERN OF RUBISCO ACTIVASE MESSENGER-RNA ACCUMULATION IN APPLE PLANTS

被引:48
作者
WATILLON, B [1 ]
KETTMANN, R [1 ]
BOXUS, P [1 ]
BURNY, A [1 ]
机构
[1] CTR RECH AGRON GEMBLOUX,CULTURES FRUITIERES & MARAICHERES,B-5030 GEMBLOUX,BELGIUM
关键词
APPLE; MALUS; RUBISCO ACTIVASE;
D O I
10.1007/BF00019298
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
An apple cDNA encoding the precursor of ribulose 1,5-bisphosphate carboxylase/oxygenase (rubisco) activase has been characterized. Using this cDNA as a probe, leaf-specific and light-regulated accumulation of corresponding transcripts was detected. Rubisco activase transcripts also turned out to accumulate at growing levels during apple leaf development, to reach a maximum in fully expanded leaves. In contrast, chlorophyll a/b-binding protein (Cab) and rubisco large subunit mRNA levels reach a maximum earlier in the course of leaf development. Moreover, the accumulation of rubisco activase messengers appeared to follow an oscillating circadian rhythm qualitatively similar to that observed for Cab mRNA levels.
引用
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页码:501 / 509
页数:9
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