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Analysis of light-controlled accumulation of carotenoids in mustard (Sinapis alba L.) seedlings
Carotenoid accumulation in the cotyledons of the mustard seedling (Sinapis alba L.) is controlled by light. Besides the stimulatory function of phytochrome in carotenogenesis the experiments revealExpand
Inhibition of carotenoid biosynthesis by the herbicide SAN 9789 and its consequences for the action of phytochrome on plastogenesis
Treatment of the mustard (Sinapis alba L.) seedling with the herbicide SAN 9789 inhibits synthesis of colored carotenoids and interferes with the formation of plastid membrane lipids withoutExpand
Light control of plastogenesis and ribulosebisphosphate carboxylase levels in mustard seedling cotyledons
We have studied the problem whether the phytochrome-mediated accumulation of ribulosebisphosphate carboxylase (“carboxylase”; EC 4.1.1.39) in the cotyledons of sinapis alba L. is related to size,Expand
MULTIPLE ACTION OF FAR‐RED LIGHT IN PHOTOPERIODIC INDUCTION and CIRCADIAN RHYTHMICITY
Abstract— It is generally accepted that phytochrome influences the photoperiodic induction of flowering through its interaction with the circadian clock mechanism. We have attempted to separate theExpand
Control by Phytochrome of the Level of Nicotinamide Nucleotides in the Cotyledons of the Mustard Seedling
Abstract Long-term and short-term effects of phytochrome on the levels ("tissue contents") of NAD, NADH2 , NADP and NADPH2 were measured in the cotyledons of the mustard (Sinapis alba L.) seedling.Expand
Regulation of enzyme levels by phytochrome in mustard cotyledons: Multiple mechanisms?
Phytochrome controls the appearance of many enzymes in the mustard (Sinapis alba L.) cotyledons. The problem has been whether the effect of phytochrome on the appearance of enzymes in this organ isExpand
Participation of Pterin-Molybdenum Cofactor in the Regulation of Nitrate Reductase Activity and Signal Transduction During Light-Stimulated Conidiation of Neurospora Crassa
The molybdenum cofactor (Moco) of Neurospora nitrate reductase (NR) plays a determining role in regulating the activity of the enzyme in vitro and in vivo. Roldan and Butler (1980) showed thatExpand
Ribulose bisphosphate carboxylase capacity and chlorophyll content in developing seedlings of Chenopodium rubrum L. growing under light of different qualities and fluence rates
In order to evaluate the aclimation of Chenopodium seedlings to different quantum fluence rates of R and BL, kinetics of Rubisco capacity, Chl content and chloroplast structure were studied. UnderExpand
Effect of photoperiod length on leaf ontogenesis in spinach plants (Spinacia oleracea var nobel) as related to photosynthetic 0 2 production, rubisco capacity and total sugar content
The acclimation to increased photoperiod length was studied in vegetative and floral spinach plants with respect to changes in photosynthetic activity, ontogenesis and dry weight yield. HeterogeneityExpand