Webb28 maj 2024 · Nitrogen (N) is an essential element for life and controls the magnitude of primary productivity in the ocean. In order to describe the microorganisms that catalyze … WebbNitrogen fixation in the euphotic zone of the ocean was measured by C2H2 reduction and 15N2 incorporation associated with Trichodesmium sp. and also with Richelia …
A dataset of global ocean alkaline phosphatase activity
WebbNitrogen fixation or biological nitrogen fixation (BNF) is a chemical process by which molecular nitrogen (N 2), which has a strong triple covalent bond, is converted into ammonia (NH ... Indeed, the amount of … WebbNitrogen fixation in the Southern Ocean: a case of study of the Fe-fertilized Kerguelen region (KEOPS II cruise) N 2 fixation rates were measured during the KEOPS2 cruise in the HNLC area of Southern Ocean and in naturally iron-fertilized waters (Kerguelen Island 49.25° S, 69.58° E) using the 15 N isotopic technique. linna hotelli hartola
Nitrogen fixation: A poorly understood process along the …
Webb12 mars 2024 · Iron is a biochemically critical metal cofactor in enzymes involved in photosynthesis, respiration, nitrate assimilation, nitrogen fixation, and reactive oxygen species defense. Marine microeukaryotes have evolved a phytotransferrin-based iron uptake system to cope with iron scarcity, a major factor limiting primary productivity in … Webb15 maj 2024 · As a component of many biomolecules, nitrogen is a crucial element for life, especially in nutrient-poor environs such as the open ocean. Atmospheric dinitrogen … Webb11 apr. 2024 · At the same time, the elevated pCO 2 significantly decreased particulate organic carbon (POC) and particulate organic nitrogen (PON), particularly under low light. Ocean acidification, by increasing the inhibitory effects of high light, may affect the growth and competitiveness of Synechococcus in surface waters in the future scenario. bnssa le mans