منابع مشابه
Studies on the Hydrolysis of Adenosine Triphosphate by Spinach Chloroplasts.
During studies on photophosphorylation in cell-free preparations of the blue-green alga, Anabaena variabilis, a photohydrolysis of ATP was found to be induced by high concentrations of cysteine or GSH, while photophosphorylation became inhibited (1, 2). A similar photohydrolysis was also reported with chloroplasts from spinach leaves, but still higher sulfhydryl concentrations were required to ...
متن کاملStudies on the reconstitution of o(2)-evolution of chloroplasts.
Extraction of spinach (Spinacia oleracea L.) chloroplasts with cholate-asolectin in the absence of Mg(2+) results in the rapid and selective inactivation of O(2) evolution and a partial (30 to 40%) loss of photosystem II (PSII) donor activity without extraction of thylakoid bound Mn ( approximately 5 to 6 Mn per 400 Chlorophyll). Inclusion of ethylene glycol in the extractions inhibits loss of ...
متن کامل31P NMR studies of spinach leaves and their chloroplasts.
An experimental arrangement is described which enables high quality 31P NMR spectra of compressed spinach leaf pieces to be continuously recorded in which all the resonances observed (cytoplasmic and vacuolar Pi, glycerate-3-P, nucleotides) were sharp and well resolved. 31P NMR spectra obtained from intact chloroplasts showed a distinct peak of stromal Pi. An upfield shift of the stromal Pi res...
متن کاملStudies on the assembly of large subunits of ribulose bisphosphate carboxylase in isolated pea chloroplasts
Ribulose bisphosphate carboxylase consists of cytoplasmically synthesized "small" subunits and chloroplast-synthesized "large" subunits. Large subunits of ribulose bisphosphate carboxylase synthesized in vivo or in organello can be recovered from intact chloroplasts in the form of two different complexes with sedimentation coefficients of 7S and 29S. About one-third to one-half of the large sub...
متن کاملStudies on the Entry of Fructose - 2 , 6 - Bisphosphate into Chloroplasts 1
The regulatory metabolite fructose-2,6-bisphosphate (Fru-2,6P2) has an important function in controlling the intermediary carbon metabolism of leaves. Fru-2,6-P2 controls two cytosolic enzymes involved in the interconversion of fructose-6-phosphate and fructose-1,6-bisphosphate (fructose-1,6-bisphosphatase and pyrophosphate,fructose-6-phosphate 1-phosphotransferase) and thereby controls the par...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1939
ISSN: 0306-3283
DOI: 10.1042/bj0330293