نتایج جستجو برای: heterotrophic bacteria

تعداد نتایج: 183474  

2018
Kai Tang Yao Zhang Dan Lin Yu Han Chen-Tung A. Chen Deli Wang Yu-Shih Lin Jia Sun Qiang Zheng Nianzhi Jiao

Shallow-sea hydrothermal systems experience continuous fluctuations of physicochemical conditions due to seawater influx which generates variable habitats, affecting the phylogenetic composition and metabolic potential of microbial communities. Until recently, studies of submarine hydrothermal communities have focused primarily on chemolithoautotrophic organisms, however, there have been limite...

Kerosene is the colorless liquid and slightly heavier than gasoline thatspecific odor removes after evaporation. Soil and underground water source arecontaminated with different pollutants such as petroleum hydrocarbons. These pollutantshave various negative environmental effects on soil and surrounding environment. Theaim of this research is to understand the effect of kerosene pollution on tw...

Journal: Pollution 2016

Kerosene is the colorless liquid and slightly heavier than gasoline thatspecific odor removes after evaporation. Soil and underground water source arecontaminated with different pollutants such as petroleum hydrocarbons. These pollutantshave various negative environmental effects on soil and surrounding environment. Theaim of this research is to understand the effect of kerosene pollution on tw...

Journal: :Journal of general microbiology 1956
T FISHER E FISHER M D APPLEMAN

Heterotrophic bacteria were studied which produced nitrite in the presence of ammonia and in the absence of nitrate. A soil extract medium was prepared which allowed good growth as well as nitrite production in the absence of nitrate. Quantitative data are recorded showing that ammonia decreases as nitrite accumulates when four different cultures are grown in the soil medium. Resting cell studi...

2010
Krystyna Gorlach-Lira

Study on mangrove water and sediment of Paraiba do Norte river (Northeastern Brazil) and crabmeat of Ucides cordatus was carried to investigate the relation between the abundance of bacteria in the mangrove habitat and in the crabmeat. Simultaneous collection of samples of water, sediment and crabs (U. cordatus) was done during the rainy and dry seasons at two areas of mangroves that differed i...

ژورنال: سلامت و محیط زیست 2013
احرامپوش, محمد حسن, امرالهی, محسن, دهواری, محبوبه, قانعیان, محمد تقی,

Background and Objectives: Water complexes including Jacuzzi are among the most popular water recreation centers that noncompliance with health standards can lead to increased microbial growth in water and thus the risk of infection. This study aimed at comprehensive study of jacuzzis water in Yazd city and comparing the results with national and international standards. Materials and Methods: ...

Journal: :Environmental technology 2014
M Salatul Islam Mozumder Cristian Picioreanu Mark C M van Loosdrecht Eveline I P Volcke

This study deals with the influence of heterotrophic growth on autotrophic nitrogen removal from wastewater in a granular sludge reactor. A mathematical model was set-up including autotrophic and heterotrophic growth and decay in the granules from a partial nitritation-anammox process. A distinction between heterotrophic bacteria was made based on the electron acceptor (dissolved oxygen, nitrit...

Journal: :international journal of aquatic biology 0
svetlana kurbatova i.d. papanin institute for biology of inland waters, russian academy of sciences nina lapteva laboratory of experimental ecology, i.d. papanin institute for biology of inland waters, russian academy of sciences, 152742 borok, yaroslavskaya region, russian federation. svetlana bykova laboratory of experimental ecology, i.d. papanin institute for biology of inland waters, russian academy of sciences, 152742 borok, yaroslavskaya region, russian federation. igor yershov laboratory of experimental ecology, i.d. papanin institute for biology of inland waters, russian academy of sciences, 152742 borok, yaroslavskaya region, russian federation. yelena borisovskaya laboratory of experimental ecology, i.d. papanin institute for biology of inland waters, russian academy of sciences, 152742 borok, yaroslavskaya region, russian federation.

aquatic plants have a major influence upon other aquatic organisms, by altering both water chemistry and spatial structure of the habitat in shallow water bodies. some of them, such as stratiotes aloides l., may suppress algal growth. but how aquatic plants would ultimately influence the heterotrophic community and the aquatic ecosystem as a whole is far from clear. our microcosm-based study de...

Journal: :Applied and environmental microbiology 2004
Tomonori Kindaichi Tsukasa Ito Satoshi Okabe

Ecophysiological interactions between the community members (i.e., nitrifiers and heterotrophic bacteria) in a carbon-limited autotrophic nitrifying biofilm fed only NH(4)(+) as an energy source were investigated by using a full-cycle 16S rRNA approach followed by microautoradiography (MAR)-fluorescence in situ hybridization (FISH). Phylogenetic differentiation (identification) of heterotrophic...

Journal: :Environmental microbiology 2014
Amy E Zimmerman Steven D Allison Adam C Martiny

The objective of this study was to evaluate the contribution of evolutionary history to variation in the biomass stoichiometry and underlying biochemical allocation patterns of heterotrophic marine bacteria. We hypothesized that phylogeny significantly constrains biochemical allocation strategy and elemental composition among taxa of heterotrophic marine bacteria. Using a 'common-garden' experi...

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