| 词汇 | example_english_nitrogen-fixation |
| 释义 | Examples of nitrogen fixationThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Therefore, nitrogenfixation is unimportant as a source of this element for savanna plants. These hypotheses will be tested as additional genomic, biochemical and geological evidence sheds more light on the evolution of nitrogenfixation, photosynthesis and cyanobacteria. The objective of the present experiment was to assess seed composition and nitrogenfixation under these conditions. Thus, at this point, the phylogenetic and molecular evidence indicate that nitrogenfixation arose before photosynthesis, but more work on this question is needed. The evolution of nitrogenfixation also appears to have been a precondition for the evolution of (bacterio)chlorophyll-based photosynthesis. This model involves the interplay of denitrification, nitrification and nitrogenfixation, but does not explicitly consider the influence of tracemetal availability for requisite enzyme activity. By providing soil cover and nitrogenfixation they not only improve livestock feed but also help prevent soil degradation. These results indicate that brassica residues could affect critical microbial processes, including nitrification, nitrogenfixation and mycorrhizal symbioses. Technologies include nitrogenfixation, biocontrol of pathogens and pests, fermentation, post harvest microbiology and more. Stabilizing agricultural energy needs: role of forages, rotations, and nitrogenfixation. Nitrogenfixation throughout growth, and varietal differences in nitrogenfixation by the rhizosphere of rice planted in pots. Can biological nitrogenfixation sustain agriculture in the tropics? The acetylene reduction assay for measuring nitrogenfixation in waterlogged soil. It appears that nitrogenfixation is more sensitive to infection than nitrogen assimilation. So, for example, several species will typically perform nitrogenfixation functions, but each will perform those functions differently depending upon climatic conditions. Biological nitrogenfixation associated with sugarcane and rice: contributions and prospects for improvement. This simplified technique, therefore, can provide rapid and reliable measurements of nitrogenfixation in field experiments. Biological nitrogenfixation: investments, expectations and actual contributions to agriculture. Agricultural management of grain legumes: has it led to an increase in nitrogenfixation? Lightning : estimates of the rates of energy dissipation and nitrogenfixation. Can biological nitrogenfixation sustain agricultural production in the tropics? These results indicate that charcoal rot infection may alter seed composition and nitrogenfixation in soybean. Data on nitrogenfixation, production, crop nitrogen off-take and competition effects came from two seasons of fieldwork. This also strongly suggests that nitrogenfixation arose before photosynthesis. Rates of nitrogenfixation were determined using the acetylene reduction method. Annual soil improving legumes: agronomic effectiveness, nutrient uptake, nitrogenfixation and water use. These short duration fallows improve soil fertility through pathways such as biological nitrogen fixation and recycling of nutrients from the subsoil and contribute to increased crop yields. Biological nitrogenfixation in wetland rice fields: estimation and contribution to nitrogen balance. The production of pigeonpea, and its potential for soil fertility improvement in these systems will, therefore, largely depend on effective nodulation and nitrogenfixation by indigenous or introduced rhizobia. Profiles include sections on description, distribution, characteristics (including growth, defoliation, compatibility, climatic adaptation and nitrogenfixation), breeding, nutritive value, utilization, animal performance, main attributes and shortcomings. Sustainable agriculture in the semi-arid tropics through biological nitrogenfixation in grain legumes. The importance of biological nitrogenfixation to new crop development. The contribution of biological nitrogenfixation for sustainable agriculture in the tropics. Biological nitrogenfixation: an efficient source of nitrogen for sustainable agricultural production? Future benefits from biological nitrogenfixation: an ecological approach to agriculture. Here it is hypothesized that the biological process of nitrogenfixation was a key precondition to the proliferation of cyanobacteria and the subsequent oxygenation of the biosphere. The connection between nitrogenfixation and the evolution of photosynthesis is demonstrated by the similarities between nitrogenase and enzymes critical for the biosynthesis of (bacterio)chlorophyll. These losses are presumably due to fermentation of storage polysaccharides by the cyanobacteria in the mats to gain energy for both maintenance and nitrogenfixation activities. In fifteen sections the main topics discussed include; bacterial genomics, plant genomics, development biology, signals in the soil, nodule metabolism and applied aspects of nitrogenfixation. Successive cuts of perennial herbaceous legumes followed by removing plant residues temporarily reduce nitrogenfixation, due to the competition for carbohydrates between plant regrowth and nodule maintenance25. Environmental regulation of nitrogenfixation in actinomycete nodulated plants. Effects of ley arable rotation on soil nitrogen and nitrogenfixation. In situ acetylene-ethylene assay of biological nitrogenfixation in lowland rice soils. Towards an ecological understanding of biological nitrogenfixation. Genetics and regulation of nitrogenfixation in free-living bacteria. Rhizobium-legume symbiosis and nitrogenfixation under severe conditions and in an arid climate. The natural history of nitrogenfixation. The biology of nitrogenfixation. Biological nitrogenfixation in the tropics. Aside from carbon fixation, microorganisms key collective metabolic processes (including nitrogen fixation, methane metabolism, and sulfur metabolism) control global biogeochemical cycling. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a genetically tractable system that is used to study nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In addition to fixing carbon dioxide in photosynthesis, some bacteria also fix nitrogen gas (nitrogenfixation) using the enzyme nitrogenase. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Actinorhizal plants are the major contributors to nitrogenfixation in broad areas of the world, and are particularly important in temperate forests. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Tick-trefoils are generally useful as living mulch and as green manure, as they are able to improve soil fertility via nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Relevant examples include water oxidation in photosynthesis, nitrogenfixation and oxygen reduction in many pathways for respiration. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenfixation occurs naturally in the air by means of lightning. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Reduced carbon fixation also leads to decreased nitrogenfixation rates because crust organisms do not have sufficient energy for this energy-intensive process. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Cyanobacteria provide soluble nitrates for the reef via nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These exist in a symbiotic relationship with their cycad host by nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Outside sources are upwelling from deep water and nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Her primary research interests lie in the field of nitrogenfixation in legumes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Goals are tolerance to drought and low phosphorus soils; heat tolerance; and improved nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Others are free-living (non-parasitic), and include many of the bacteria responsible for nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One example of a non-biological process responsible for nitrogenfixation is lightning. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It produces, as a byproduct of nitrogenfixation, three times more hydrogen than do molybdenum-containing nitrogenases of other bacteria. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Being a legume, the pigeon pea enriches soil through symbiotic nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenase is an enzyme involved in nitrogenfixation and requires anaerobic conditions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenfixation requires energy from photosynthesis products, and thus increase with temperature given sufficient moisture. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Bacterial plasmids can also function in pigment production, nitrogenfixation and the resistance to heavy metals in those bacteria that possess them. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There, he worked on plant uptake of ions, especially iron, nitrogenfixation and calcicolous plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Due to ameliorating effects of nitrogenfixation there is an additional chance to make wasteland more productive. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is also used for nitrogenfixation, erosion control for crops, for food, drink and medicine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Trichodesmium is one species capable of nitrogenfixation that is found in many surface plankton blooms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenfixation also is an important ecological function carried out by this bacterium in acidophilic habitats. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some cyanobacteria are also capable of nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a widely adapted crop, energy-efficient, and an important source of biological nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is also efficient in nitrogenfixation, at more than 500 kg/ha/year. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenfixation is an important part of the nitrogen cycle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They are capable of nitrogenfixation and are capable of improving soil fertility in addition to providing high protein stock feed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Transition metal nitrido complexes have attracted interest in part because it is assumed that nitrogenfixation proceeds via nitrido intermediates. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The microbial genes required for nitrogenfixation are widely distributed in diverse environments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Heterocysts are cells that are terminally specialized for nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. His research in nitrogenfixation and symbiosis in cyanobacteria are internationally acclaimed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It also can convert atmospheric dinitrogen to ammonia via nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In spite of its resistance to being cultured, at least one potentially significant metabolic function can be inferred through circumstantial evidence: nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is used to study the symbiosis responsible for nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nitrogenfixation can be found distributed throughout nearly all bacterial lineages and physiological classes but is not a universal property. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Precipitation often contains substantial quantities of ammonium and nitrate, thought to result from nitrogenfixation by lightning and other atmospheric electric phenomena. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In terms of symbiotic nitrogenfixation from the atmosphere, common sainfoin is not as specific as other legumes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Biologically usable forms of nitrogen, such as nitrates and ammonia, arise via biological and non-biological processes through nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thanks to nitrogenfixation, both crops included in the intercropping system are benefitted from the higher nitrogen content in soil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. After photosynthesis, nitrogenfixation (or uptake) is the second most important process for the growth and development of plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Both products are toxic to animals, and nitrogen oxides are essential for nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is used as a cofactor in enzymes involved in processes such as nitrate reduction and nitrogenfixation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Betaproteobacteria play a role in nitrogenfixation in various types of plants, oxidizing ammonium to produce nitrite an important chemical for plant function. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Direct mechanisms include phosphate solubilization, nitrogenfixation, degradation of environmental pollutants and hormone production. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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