Elemental Composition (C, N, P) and Cell Volume of Exponentially Growing and Nutrient-Limited Bacterioplankton
TLDR
The results show that different growth conditions and differences in the bacterial community may explain some of the variability of previously reported elemental and carbon-volume ratios.Abstract:
Marine bacterioplankton were isolated and grown in batch cultures until their growth became limited by organic
carbon (C), nitrogen (N), or phosphorus (P). Samples were taken from the cultures at b ...read more
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Elemental composition of marine Prochlorococcus and Synechococcus: Implications for the ecological stoichiometry of the sea
TL;DR: The results suggest that Prochlorococcus and Synechococcus may have relatively low P requirements in the field, and thus the particulate organic matter they produce would differ from the Redfield ratio (106C : 16N : 1P) often assumed for the production of new particulates organic matter in the sea.
Journal ArticleDOI
Interactions of bacteria and fungi on decomposing litter: differential extracellular enzyme activities
TL;DR: The low total activity and growth of bacteria in the absence of fungi in spite of apparent high enzymatic efficiency during the degradation of many substrates suggest that fungi provide the bacteria with resources that the bacteria were not able to acquire on their own, most probably intermediate decomposition products released by fungi that could be used by bacteria.
Journal ArticleDOI
Heterotrophic bacterial growth efficiency and community structure at different natural organic carbon concentrations.
TL;DR: The results suggest that the bacterial growth efficiencies, the rates of bacterial growth, and the compositions of bacterial communities are not constrained by substrate concentrations in most natural waters, with the possible exception of the most oligotrophic environments.
Journal ArticleDOI
Life under extreme energy limitation: a synthesis of laboratory- and field-based investigations.
Mark A. Lever,Karyn L. Rogers,Karen G. Lloyd,Jörg Overmann,Bernhard Schink,Rudolf K. Thauer,Tori M. Hoehler,Bo Barker Jørgensen +7 more
TL;DR: Past investigations on microbial energy requirements and adaptations to energy limitation, identify gaps in current knowledge, and outline possible future foci of research on life under extreme energy limitation are discussed.
Journal ArticleDOI
Autochthonous versus allochthonous carbon sources of bacteria: Results from whole-lake 13C addition experiments
TL;DR: In this article, the authors examined the importance of autochthonous versus allochthongous DOC in supporting the growth of pelagic bacteria by manipulating the 13 C content of auto-coated sources in a whole-lake experiment.
References
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Journal ArticleDOI
The use of DAPI for identifying and counting aquatic microflora1
Karen G. Porter,Yvette S. Feig +1 more
TL;DR: Use of DAPI improved visualization and counting of <1-µm bacteria and blue-green algae in seston-rich samples and extended sample storage to at least 24 weeks.
Book ChapterDOI
Culture of Phytoplankton for Feeding Marine Invertebrates
TL;DR: The methods suffice for the most fastidious algae now routinely cultivable, and simplifications indicated for less demanding species are easily made; for example, omission of silicate for plants other than diatoms.
Book
Biology of microorganisms
TL;DR: Biology of microorganisms, Biology of micro organisms, مرکز فناوری اطلاعات و اصاع رسانی, کδاوρزی
Journal ArticleDOI
Protein content and protein synthesis rates of planktonic marine bacteria
Meinhard Simon,Farooq Azam +1 more
TL;DR: Bacterial protein production method was an order of magnitude more sensitive and yielded bacterial carbon production directly without the need to know the cell size of the part of the assemblage in growth state.
Journal ArticleDOI
Relationships between Biovolume and Biomass of Naturally Derived Marine Bacterioplankton.
Sanghoon Lee,Jed A. Fuhrman +1 more
TL;DR: It is concluded that natural marine bacterial biomass and production may be higher than was previously thought and that variations in bacterial size may not reflect variations in biomass per cell.
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