Hill reaction in the mountains
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چکیده
منابع مشابه
Carbon Dioxide & the Hill Reaction.
Recently a i uniber of investigators have reported that the Hill reaction is mior-e ral)i(l in the plreelice of CO., thiani in its absence. However., thle phenome1on1 (it CO., dependence can only Ie (lemonstrated un(ler certain conl(litioiis and it is thlerefore regrettable that there hlas beenino agreement as to the nlattire of these cond(litions. \Warburg an(l Kiippahl ( 9) haxve stresse(l th...
متن کاملPlastoquinone A in the Hill Reaction of Isolated Chloroplasts'
SimnlIrv(11'. 1lii order to avoid the l)roblelll of ani uncouplinig effect in stimiiulatioln of potential Hill reaction activity durinig extractioln with heptane, Hill reaction activity was measured with uncouple(d spinach chloroplasts. TI'he reactions were also runi ulnder aerobic coniditionis. Under these conditions a correctioni for a 3(p-chloroph'enyl) -1. 1-dimethylurea insensitive, photos...
متن کاملSome factors affecting the Hill reaction activity in cotton chloroplasts.
A method of plant culture was developed for growing large leaves of glandless cotton on single stems. Chloroplasts isolated from these leaves actively reduced ferricyanide when assayed for the Hill reaction. Hill reaction activity increased 133% when the 0.5 m sucrose isolation medium was replaced with 10% (w/v) polyethylene glycol, both buffered at pH 7.6. The presence of 2 or 5% (w/v) bovine ...
متن کاملActivities of Chloroplast Fragments I . HILL REACTION
Hill activity with ferricyanide and nicotinamide adenine dinucleotide phosphate and photoreduction of NADP and methyl red supported by ascorbate and 2,6-dichloroindophenol were studied as a function of the size of chloroplast fragments. Sonic treatment of chloroplasts resulted in a decrease in Hill activity with NADP and ferricyanide. The decrease was accompanied by a change in the dependency o...
متن کاملThe Stereospecificity of the Hill Reaction with Triphosphopyridine Nucleotide.
In 1957, San Pietro and Lang (1) observed that isolated spinach chloroplasts cause a light-stimulated exchange of the hydrogen of water with the hydrogen at the p position of the nicotinamide ring of oxidized TPN and DPN. Their results showed that there are enzymes in chloroplasts which cause activation of both steric positions of the reduced pyridine nucleotides. Since these early studies, it ...
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ژورنال
عنوان ژورنال: Nature
سال: 1975
ISSN: 0028-0836,1476-4687
DOI: 10.1038/257537a0