Inhibition of the light-independent synthesis of chlorophyll in pine cotyledons at low temperature

Citation
S. Muramatsu et al., Inhibition of the light-independent synthesis of chlorophyll in pine cotyledons at low temperature, PLANT CEL P, 42(8), 2001, pp. 868-872
Citations number
41
Categorie Soggetti
Plant Sciences","Animal & Plant Sciences
Journal title
PLANT AND CELL PHYSIOLOGY
ISSN journal
00320781 → ACNP
Volume
42
Issue
8
Year of publication
2001
Pages
868 - 872
Database
ISI
SICI code
0032-0781(200108)42:8<868:IOTLSO>2.0.ZU;2-R
Abstract
Cotyledons of Japanese black pine (Pinus thunbergii) were yellow when they developed in darkness at 8 degreesC since the light-Independent synthesis o f chlorophyll was almost completely inhibited in these cotyledons. The leve l of chlorophyll in dark-grown cotyledons was less than one-twentieth of th at in light-grown cotyledons at the same temperature. In the yellow cotyled ons, levels of transcripts of cab, rbcS, rbcL and psbA genes were quite hig h. The large and small subunits of ribulose-1,5-bisphosphate carboxylase/ox ygenase were also detected at relatively high levels in yellow cotyledons. However, the accumulation of the two apoproteins of the light-harvesting ch lorophyll alb-binding protein of PSII was limited because of the limited su pply of chlorophyll.