Nutrient assimilation

Murray JW, Downs JN, Stroms S, Wei C-L, Jannasch HW (1989) Nutrient assimilation, export production and scavenging in the eastern equatorial Pacific. Deep-Sea Res 36 1471-1489 Murray JW, Young J, Newton J, Dunne J, Chapin T, Paul B, McCarthy JJ (1996) Export flux of particulate organic carbon from the Central Equatorial Pacific determined using a combined drifting trap- " Th approach. Deep-Sea Res II43 (4-6) 1095-1132... 

During the process of nutrient assimilation, DIN is first actively transported across the cell membrane. This transport is mediated by species-specific enzymes called permeases that are present in the cell membrane. Once the inorganic nitrogen has crossed the cell membrane, it can participate in anabolic reactions. For example, ammonium helps build amino acids by first reacting with a-ketoglutaric acid to generate glutamic acid ... 

HS interact with nutrient assimilation of both macro- and micro-elements, by enhancing the nutrient use efficiency. This capacity is related to both (a) HS chelating properties and (b) an interaction with plasma membrane enzymatic constituents. 

IJA is the rate of decomposition of detritus in environment A kA is the kinematical coefficient of vertical diffusion is the velocity of nutrient assimilation by the photosynthetic process per unit of phytoplankton production ef is the proportional part of the eth radionuclide that is chemically analogous to B6 A on substrate A H is the rate of input flow of the eth radionuclide 7) is the rate of exchange with the environment p is that part of biomass losses due to exchange that transforms into nutrients (Legendre and Legendre, 1998) and f3v is upwelling velocity. Equation (6.1) is the basic element of block NM. 

Kudo, 1., Noiri, Y., Imai, K., Nojiri, Y., Nishioka, J., Tsuda, A. (2005). Primary productivity and nitrogenous nutrient assimilation dynamics during the Subarctic Pacific Iron Experiment for Ecosystem Dynamics Study. Prog. Oceanogr. 64, 207-221. 

Joint, I., Rees, A. P., and Woodward, E. M. S. (2001a). Primary production and nutrient assimilation in the Iberian upweUing in August 1998. Prog. Oceanogr. 51, 303-320. 

Nelson, D. M., and Conway, H. L. (1979). Effects of the light regime on nutrient assimilation by phytoplankton in the Baja California and northwest Africa upweUing systems. J. Mar. Res. 37, 301-318. 

Movement to a favorable location for nutrient assimilation is achieved by the use of flagella, as with some bacteria, or by the use of fibrils, as with some algae cells to glide across surfaces. 

Reich, P. B., Ellsworth, D. S., and Uhl, C. (1995). Leaf carbon and nutrient assimilation and conservation in species of differing successional status in an oligotrophic Amazonian forest. Functional Ecol. 9, 65-76. 

One of the first examples of individual-cell models is that suggested by Von Bertalanffy (see 1). In his model growth was a result of competition between the process of nutrient assimilation and endogenous metabolism. Nutrient uptake was postulated to be proportional to the cell s surface area and the concentration of nutrient In the abiotic environment and the rate of endogenous metabolism was postulated to be proportional to cell mass. 

Wilhelm C, Buchel C, Fisahn J, et al The regulation of carbon and nutrient assimilation in diatoms is significandy different from green algae, Protist 157 91—124, 2006. 

A large section of this Chapter is devoted to the production and storage of reserves in the seed, for it is upon such reserves that the embryo will eventually depend, not so much for germination, but for its successful subsequent growth and development into a seedling. Work on the physiology and biochemistry of seed maturation has been limited almost exclusively to a few commercially important annuals. For convenience we shall consider nutrient assimilation in the cereals, which have a persistent endosperm, then those dicots in which... 

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