Bacteria and the Phosphorus Cycle in the Sea

Renn, Charles E.

doi:10.2307/1537252

Cited by 25 publications

(12 citation statements)

References 4 publications

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“…Consequently, both DOP and PP must be considered integral components of the marine P-cycle. At about this same time, studies on the role of marine bacteria as agents of organic matter decomposition were getting underway at several independent marine laboratories worldwide (e.g., Renn, 1937;Waksman and Renn, 1936;ZoBell and Grant, 1943). Furthermore, considerations of coupled particle sinking and decomposition (Seiwell and Seiwell, 1938) provided the incentive for investigations of the role of biological processes in the distributions of nonconservative properties (e.g., nutrients, oxygen, and carbon dioxide) as a function of water depth and distance from landmasses.…”

Section: The Early Years Of Pelagic Marine P-cycle Research (1884mentioning

confidence: 99%

Dynamics of Dissolved Organic Phosphorus

Karl

Björkman

2015

Biogeochemistry of Marine Dissolved Organic Matter

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Section: The Early Years Of Pelagic Marine P-cycle Research (1884mentioning

confidence: 99%

Dynamics of Dissolved Organic Phosphorus

Karl

Björkman

2015

Biogeochemistry of Marine Dissolved Organic Matter

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“…Some of this effect can be attributed to nutrient release during phagotrophic feeding, especially in the microbial loop (e.g., Güde, 1985;Caron, 1994). Further contributions come from the death and lysis of bacteria (Renn, 1937) and by stimulation of bacterial hydrolytic enzymes mediating remineralization of inorganic nutrients such as phosphorus and nitrogen (Hadas et al, 1992;Ferrier-Pagès and Rassoulzadegan, 1994). In heterotrophic microbial communities, organic carbon compounds are a major source of nutrients for bacteria at the base of the food web (e.g., Ducklow, 2000;Anderson and McGuire, 2013).…”

Section: Introductionmentioning

confidence: 99%

Evidence for Coupling of the Carbon and Phosphorus Biogeochemical Cycles in Freshwater Microbial Communities

Anderson

2018

Front. Mar. Sci.

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Considerable attention has been given to the roles of the carbon and phosphate cycles in aquatic environments, but less attention has been given to an experimental analysis of the coupling of the C and P cycles in freshwater and marine ecosystems. Using laboratory microcosm experiments, prepared with natural pond-water microbial communities, evidence is presented for the coupling of dissolved organic C with microbial production of alkaline phosphatase driving the phosphorus cycle in freshwater microbial communities. The effects of glucose C-supplementation in microcosm microbial communities (including bacteria and heterotrophic nanoflagellates) on gains in microbial C-content and alkaline phosphatase activity (APA) were estimated in relation to control microcosms without C-supplementation. The C-supplementation increased total microbial APA (pmol min −1 µg −1 bacterial C) in the C-supplemented treatment (6.5 ± 0.6) compared to the non-supplemented cultures (5.1 ± 1.7). Microbial-bound APA in the C-supplemented treatment was particularly enhanced (4.4 ± 0.9) compared to control cultures (1.3 ± 0.8), but the amount of free (soluble) APA in the aquatic phase was less compared to the controls (n = 5, p < 0.001). Alkaline phosphatase activity was highly correlated (r = 0.97) with bacterial densities in the C-supplemented cultures, further supporting the hypothesis that C-supplementation can increase phosphorus remineralization through elevated production of microbial alkaline phosphatase. This laboratory-based, experimental study suggests that additional research on the coupling of the C and P cycles in freshwater and marine environments may yield productive insights into the finer details of the roles of these two biogeochemical cycles in aquatic microbial community dynamics.

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“…The overall effect is therefore of phosphate absorption by the bacteria. Renn (1937) and Waksman et al (1937) have already shown that when sea water is incubated in the dark, for the first day or two phosphate is absorbed. Work at present in progress has often given similar results.…”

Section: Recovery Of Phosphate After Disappearance On Long Standi1'1:gmentioning

confidence: 97%

Certain Effects of Agitation Upon the Release of Phosphate from Mud

Stephenson¹

1949

J. Mar. Biol. Ass.

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When sea water is stirred with mud and then filtered, its phosphate concentration may either increase or decrease. When the filtrate is ultrafiltered, the concentration increases.Similar increases occur when the filtrate is stored in glassware, and these obscure any effects of the presence of colloidal material. On storage concentrations rise for about 2 hr., and then fall to as low as 2 mg./m.3 P2O5 in 18 hr.Rise and fall are both prevented by the addition of formalin, chloroform or toluene, and are more noticeable in small containing vessels. Both occur during either day or night, and when temperatures are either rising or falling.

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Bacteria and the Phosphorus Cycle in the Sea

Cited by 25 publications

References 4 publications

Dynamics of Dissolved Organic Phosphorus

Dynamics of Dissolved Organic Phosphorus

Evidence for Coupling of the Carbon and Phosphorus Biogeochemical Cycles in Freshwater Microbial Communities

Certain Effects of Agitation Upon the Release of Phosphate from Mud

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