Developmental and circadian pattern of rubisco activase mRNA accumulation in apple plants
✍ Scribed by Bernard Watillon; Richard Kettmann; Philippe Boxus; Arsène Burny
- Book ID
- 104615275
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 849 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0167-4412
No coin nor oath required. For personal study only.
✦ Synopsis
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 m R N A 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 m R N A levels.