D L Chen,P M Chalk,J R Freney et al.
D L Chen et al.
Three techniques for estimating nitrification rates in flooded soils were evaluated in short-term incubation experiments using three soils. The techniques were based on inhibition of either ammonium or nitrite oxidation and (13)N isotope di...
Benefits associated with the stalk of Gallionella ferruginea, evaluated by comparison of a stalk-forming and a non-stalk-forming strain and biofilm studies in situ [0.03%]
通过比较形成和不形成柄的菌株以及在体内的生物膜研究来评估铁氧化菌Gallionella ferruginea柄的相关益处
L Hallbeck,K Pedersen
L Hallbeck
Factors that regulate and induce stalk formation by the iron-oxidizing and stalk-forming bacterium Gallionella ferruginea were studied in laboratory cultures and in situ. A stalk-forming strain, Sta(+), and a non-stalk-forming strain, Sta(-...
Regulation of bacterial abundance and production by substrate supply and bacterivory: A mesocosm study [0.03%]
底物输入和细菌捕食对细菌丰度和生产率调节的实验研究
F K Shiah,H W Ducklow
F K Shiah
Daily bacterial abundance and production, heterotrophic nanoflagellates (HNAN) abundance, chlorophyll, and NH4 (+) concentrations were measured in four indoor 400-liter tanks over 13 days to study the role of heterotrophic bacterioplankton ...
Simultaneous use of (14)C and (3)H to determine autotrophic production and bacterial protein production in periphyton [0.03%]
同时使用（14）C和（3）H测定丝藻的自养生产和细菌蛋白质生产
R K Neely,R G Wetzel
R K Neely
A method of simultaneously quantifying photoautotrophic (algae and cyanobacteria) and bacterial production in periphyton communities by (14)C-bicarbonate and (3)H-leucine incorporation was investigated and applied to communities subjected t...
Evolution of resident oral bacterial biota in BALB/c mice during pregnancy and lactation [0.03%]
BALB/c小鼠妊娠和哺乳期间口腔定植菌群的动态变化规律研究
C Coulombe,M C Lavoie
C Coulombe
To assess the influence of pregnancy and lactation on the oral microbial ecology of BALB/c mice, we followed the distribution of the predominant oral bacteria of four groups of these mice during these two periods. Compared with nonpregnant ...
Influence of temperature and process technology on the occurrence of Aeromonas species and hygienic indicator organisms in drinking water production plants [0.03%]
温度和工艺技术对饮用水生产中气单胞菌属及卫生指示菌的影响
I Kersters,L Van Vooren,G Huys et al.
I Kersters et al.
The occurrence of Aeromonas spp. and hygienic indicator organisms in raw and treated waters of five drinking water production plants in Flanders (Belgium) was surveyed over a period of 17 months. Aeromonads were isolated on ampicillin-dextr...
Alginate degradation by bacteria isolated from the gut of sea urchins and abalones [0.03%]
从海胆和鲍鱼肠道中分离的细菌对琼脂的降解作用
T Sawabe,Y Oda,Y Shiomi et al.
T Sawabe et al.
Degradation of alginate and its constituents, polymannuronate (polyM) and polyguluronate (polyG), by gut bacteria isolated from sea urchins and abalones in the northern part of Japan, were investigated. Bacterial counts in the guts of sea u...
Dormant/unculturable cells of the fish pathogen Aeromonas salmonicida [0.03%]
鱼病原气单胞菌(Aeromonas salmonicida)的休眠/非培养细胞
I Effendi,B Austin
I Effendi
Viable cells of Aeromonas salmonicida remained in experimental marine systems after plate counts indicated an absence of culturable cells. These so-called viable but nonculturable (VBNC) cells were coccoid and smaller than their normal cult...
M Ghoul,J Minet,T Bernard et al.
M Ghoul et al.
At elevated osmolarity of the mineral medium M63, marine macroalgae constitute important osmoprotectants and nutrients sources for Escherichia coli. Growth of bacterial population (16 strains) was improved by supplementing M63 salts medium ...
Ingestion and assimilation by marine protists fed on bacteria labeled with radioactive thymidine and leucine estimated without separating predator and prey [0.03%]
放射性胸腺嘧啶和亮氨酸示踪的细菌被海洋原生动物摄食和同化的速率测定无需分离捕食者和猎物
M V Zubkov,M A Sleigh
M V Zubkov
A procedure has been developed for preparing living bacteria, quantitatively labeled with (3)H-thymidine and (14)C-leucine, for short-term grazing experiments. The negligible rate of accumulation in protozoan macromolecules of moieties of b...