Micronutrient effects on cyanobacterial growth and physiology
| Autor: | John G. Rueter, Richard R. Petersen |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Ecology
Copper toxicity chemistry.chemical_element Aquatic Science Biology medicine.disease Photosynthesis Nitrogen chemistry.chemical_compound Nutrient chemistry Biochemistry Nitrate medicine Nitrogen fixation Trace metal Nitrogen cycle Ecology Evolution Behavior and Systematics Water Science and Technology |
| Zdroj: | New Zealand Journal of Marine and Freshwater Research. 21:435-445 |
| ISSN: | 1175-8805 0028-8330 |
| DOI: | 10.1080/00288330.1987.9516239 |
| Popis: | Trace metals play crucial roles in the carbon and nitrogen metabolism of cyanobacteria. Physiological responses to metal limitation and toxicity in culture have shown that iron is important for photosynthesis and energy distribution in the cell while both iron and molybdenum are biochemically involved in nitrate reduction and nitrogen fixation. Nitrogen fixation is also relatively sensitive to copper toxicity. Consequently, factors that affect the supply rate, chemical speciation, or the recycling of trace metals can alter patterns of primary productivity and nitrogen metabolism. Overall, three trace metal dependent processes may contribute towards dominance: efficient use of limiting light, nitrogen fixation, and production of extracellular iron binding compounds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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