Simultaneous Measurement of Acetylene Reduction and Respiratory Gas Exchange of Attached Root Nodules
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چکیده
منابع مشابه
Reduction of acetylene and nitrogen gas by breis and cell-free extracts of soybean root nodules.
Cell-free extracts of Clostridiiumii p(lste'rtr'i lm il (8) aind( of A2otoboctcr viiell(tlfdii (2) in the presence of an ATP generating system alndI anl appropriate electron donior, catalvze the redcuction of N. gas to ammonia. In recent investigations (3,4, 9) of the properties of nitrogenase from these organiisms, it has been established that the enzyme system is non-specific for electron acc...
متن کاملhazard evaluation of gas condensate stabilization and dehydration unit of parsian gas refinery using hazop procedures
شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...
Studies with detached lupin root nodules in culture: I. Maintenance and induction of acetylene reduction activity.
A method has been developed for culturing detached nitrogen-fixing root nodules of lupin (Lupinus angustifolius L.) on a simple nutrient medium. Under the best conditions devised, the acetylene reduction activity of mature detached nodules was maintained at 10 to 25 nmoles of ethylene hr(-1) mg(-1) fresh weight for 3 days. Under the same culture conditions, immature nodules increased their acet...
متن کاملAnalysis of acetylene reduction rates of soybean nodules at low acetylene concentrations.
It has been previously proposed that acetylene reduction data at subsaturating acetylene concentrations could be interpreted by use of the Michaelis-Menten equation, based on the acetylene concentration external to the nodules. One difficulty of this view is that the assumption that the system is not diffusion limited is violated when studying intact nodules. The presence of a gas diffusion bar...
متن کاملEffect of Ammonium Chloride and Methionine Sulfoximine on the Acetylene Reduction of Detached Root Nodules of Peas (Pisum sativum).
Acetylene-reducing activity of detached pea nodules was determined by submerging the nodules in buffer solution [tris(hydroxymethyl)aminomethane-hydrochloride, pH 7.4] containing 100 mM sodium succinate and incubating under a gas phase of 90% O(2) and 10% C(2)H(2). The nitrogenase activity was 4 to 8 mumol of C(2)H(4) formed per g of nodule fresh weight per h and remained constant for at least ...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1982
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.70.2.361