gout109
发表于 2025-3-25 06:31:38
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软膏
发表于 2025-3-25 10:35:55
Recognitione earned these plants priority consideration, but what must have assured them the greatest respect among farmers was their unique ability to enrich the soil. The prevalence of various pulse seeds in archeological diggings attests to the early origins of legume culture, though one may only guess when
和谐
发表于 2025-3-25 13:43:18
Description and Classification of Diazotrophsabolic, structural and genetic characteristics. The organisms which can use N. to meet their nitrogen requirement, however, appear to violate this rule: except for the ability to fix N., these organisms, the diazotrophs, have little else in common. They comprise an incongruous mixture made up primar
枕垫
发表于 2025-3-25 17:34:25
Perspectivesbased on a consideration of the composition of the primordial atmosphere and on a logical sequence of evolutionary challenge and response, proceeding through the following successive stages 1. initial utilization of ammonia, 2. oxidation of ammonia to nitrate, 3. conversion of nitrate to N. and N.O,
overrule
发表于 2025-3-25 20:05:14
An Equation for the Nitrogenase Reactiontivity of the enzyme nitrogenase, while the other is concerned chiefly with its physical and chemical characteristics. Productive research in the former was initiated with the preparation of active cell-free extracts in 1960, but characterization work did not get well under way until into the mid-19
declamation
发表于 2025-3-26 03:34:55
Nitrogenase: The Catalystchniques of bacterial genetics, and the foundation of this important aspect of N. fixation is taking form. The most noteworthy achievement to date, reported by DIXON and POSTGATE (180), is the transfer of genes for dinitrogen fixation . from . to .. Additionally, substantial progress has been made i
易于出错
发表于 2025-3-26 05:50:43
Mechanisml. The data in the preceding three chapters document this effort and tell a great deal about the composition and reactions of nitrogenase. Numerous mechanistic proposals have been made over the years, but it is still impossible to present a definitive mechanism for nitrogenase catalysis. The scheme
Hyperalgesia
发表于 2025-3-26 10:20:00
Cellular Accommodation of Nitrogenasesually requires only relatively modest modification in cellular physiology and biochemistry. However, when the source nutrient is dinitrogen, the changes involved in adaptation can be particularly far reaching, with profound effects not only on the physiology and biochemistry of organism, but on its
Immunotherapy
发表于 2025-3-26 16:15:48
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Innovative
发表于 2025-3-26 19:23:42
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