Results 171 to 180 of about 4,142 (205)
Oligotrophy and pelagic marine bacteria: facts and fiction [PDF]
Aquatic Microbial Ecology, 1997 Oligotrophy, or the inability of bacterial cells to propagate at elevated nutrient concentrations, is a controversial phenomenon in microbiology. The exact cause of the unculturability of many indigenous marine bacteria on standard laboratory media has ...
Gottschal, J.C, Prins, R.A, Schut, F
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Atlantic forcing of the Mediterranean oligotrophy [PDF]
Global Biogeochemical Cycles, 2012 The Mediterranean Sea shows a peculiar anomaly in its nutrient pattern compared to the global ocean, as there is decrease in nutrient concentration from west to east. This feature has been attributed to the antiestuarine circulation at the Strait of Gibraltar, where an eastward flow of Atlantic nutrient‐poor surface waters is compensated by a westward ...
I E Huertas
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Degree of oligotrophy controls the response of microbial plankton to Saharan dust [PDF]
Limnology and Oceanography, 2010 To determine the effects of Saharan dust on the abundance, biomass, community structure, and metabolic activity of oceanic microbial plankton, we conducted eight bioassay experiments between ca. 30°N and 30°S in the central Atlantic Ocean.
Beatriz Mourino-Carballido +2 more
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Oligotrophy is Helpful for the Isolation of Bioactive Actinomycetes [PDF]
Indian Journal of Microbiology, 2014 It is necessary to develop new methods for the isolation of unknown actinomycetes from soils. To evaluate the effects of oligotrophic medium on the isolation of soil actinomycetes and develop a new isolation method, the Gause's synthetic medium was diluted to one tenth the recommended concentration in the present study.
Dong-Sheng, Wang +5 more
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Oligotrophy and Nitrogen Fixation During Eastern Mediterranean Sapropel Events
Science, 1999Nitrogen isotopic measurements in fossil chlorophyll from late Pleistocene organic-rich sediments (sapropels) in the eastern Mediterranean Sea provide geochemical evidence for stratified, nutrient-depleted surface water and extensive nitrogen fixation.
Daniel J Repeta
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Feeding strategies and resource partitioning mitigate the effects of oligotrophy for marine cave mysids [PDF]
Marine Ecology - Progress Series, 2011 We investigated how large populations of several mysid species can coexist in oligo - trophic underwater marine caves and their relationships in the marine cave food web using car- bon and nitrogen stable isotopes. Isotopic signatures indicate food partitioning among the 5 spe- cies of cave-dwelling mysids from the northwest Mediterranean Sea we ...
Pierre-Alexandre Rastorgueff +2 more
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Aluminum, phosphorus, and oligotrophy – assembling the pieces of the puzzle
Verhandlungen Der Internationalen Vereinigung Fur Theoretische Und Angewandte Limnologie International Association of Theoretical and Applied Limnology, 2006(2006). Aluminum, phosphorus, and oligotrophy – assembling the pieces of the puzzle. SIL Proceedings, 1922-2010: Vol. 29, No. 4, pp. 1877-1886.
S. Norton +4 more
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Physiological bases of oligotrophy of microorganisms and the concept of microbial community
Microbial Ecology, 1991Three groups of physiological processes in microorganisms are considered the physiological basis of oligotrophy: the greater substrate affinity of the oligotrophs' transport systems, efficient or "economical" metabolism, and existence of a "master reaction" or "rate-determining steps" controlling the rate of metabolism. Heterotrophic microorganisms are
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Recent unprecedented warming and oligotrophy of the eastern Mediterranean Sea within the last millennium [PDF]
Geophysical Research Letters, 2014 AbstractThe Mediterranean region is a climatic transitional zone between the subtropical/monsoon regime and the temperate westerlies and is subject to forces acting upon the global climate system. Much knowledge about its climate over the last millennium is derived from terrestrial records, whereas changes in sea surface temperatures (SSTs) and in the ...
Guy Sisma-Ventura
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