Characterization of the microbiology within a 21 m(3)section of rock from the deep subsurface [0.03%]
表征来自深部地下岩层内微生物的群落结构和功能属性
D L Haldeman,P S Amy,D Ringelberg et al.
D L Haldeman et al.
The distribution of aerobic chemoheterotrophic microorganisms within a 21 m3 section of deep subsurface rock was determined. Nineteen samples for microbiological analysis were aseptically taken by hand from the walls of a 400 m deep subsurf...
Aerobic microorganisms associated with alfalfa leafcutter bees (megachile rotundata) [0.03%]
与豌豆蚜传粉意蜂（Megachile rotundata）相关的需氧微生物
G D Inglis,L Sigler,M S Goette
G D Inglis
Characterization of microorganisms associated with alfalfa leaf-cutter bee (Megachile rotundata) nectar, pollen, provisions, larval guts, and frass (excreta) in Alberta demonstrated a varied aerobic microflora. Yeasts were isolated frequent...
Channeling of bacterioplanktonic production toward phagotrophic flagellates and ciliates under different seasonal conditions in a river [0.03%]
河流在不同季节条件下细菌浮游植物的生产向吞噬鞭毛纲和纤毛纲的方向发展
J Iriberri,B Ayo,M Unanue et al.
J Iriberri et al.
The objective of this study was to analyze the flux of biomass through the communities of bacteria and phagotrophic protists in the cold and warm conditions occurring seasonally in Butrón River. Bacterial and heterotrophic protistan (flage...
Field relationships between scytonemin density, growth, and irradiance in cyanobacteria occurring in low illumination regimes [0.03%]
低光照条件下蓝藻中scytonemin密度、生长和辐照度之间的场关系
A Pentecost
A Pentecost
In situ measurements of ultraviolet (UV) irradiance, carbon fixation, and scytonemin pigmentation were made on Scytonema populations from contrasting localities in England. Significant negative correlations were obtained between the followi...
Factors controlling bacterial production in marine and freshwater sediments [0.03%]
控制海洋和淡水沉积物中细菌产生的因素
B C Sander,J Kalff
B C Sander
We collected benthic bacterial production data measured by (3)H thymidine incorporation (TTI) (25 studies), frequency of dividing cells (FDC) (3 studies), dark-C02 assimilation (1 study) and (3)H-adenine uptake (2 studies) from the literatu...
Microbial abundance and activities in relation to water potential in the vadose zones of arid and semiarid sites [0.03%]
干旱和半干旱地区 vadose 带中与水势相关的微生物丰度及活性
T L Kieft,P S Amy,F J Brockman et al.
T L Kieft et al.
Numbers and activities of microorganisms were measured in the vadose zones of three arid and semiarid areas of the western United States, and the influence of water availability was determined. These low-moisture environments have vadose zo...
Epiphytic survival of Pseudomonas viridiflava on tomato and selected weed species [0.03%]
假植生绿流感假单胞菌在番茄和选定杂草上的存活状况
R L Mariano,S M McCarter
R L Mariano
A rifampicin-nalidixic acid mutant of Pseudomonas viridiflava (PV) was studied in the field and greenhouse with respect to its epiphytic survival on the roots and foliage of a susceptible (FM 6203) and resistant (Ontario 7710) tomato cultiv...
Seasonal variation of fungal biomass in the sediment of a salt marsh in New Brunswick [0.03%]
新不伦瑞克盐沼沉积物中真菌生物量的季节变化
S D Mansfield,F Bärlocher
S D Mansfield
In a marsh in New Brunswick, Canada, belowground biomass of Spartina alterniflora consistently exceeded aboveground biomass by a factor of approximately 9. Both values peaked in July. Redox potential of the sediment was negative at all leve...
The loss of culturability by Escherichia coli cells in seawater depends on availability of phosphate ions and phosphate transport systems [0.03%]
大肠杆菌菌株在海水中可培养性的丧失与磷离子的获得及磷酸盐运输系统有关
M J Gauthier,G N Flatau,R L Clément et al.
M J Gauthier et al.
Using strains with or without the PhoE porin or different components of the phosphate regulon, we determined that maintenance of the culturability of Escherichia coli in seawater depended significantly on the presence of structures allowing...
Rates of nitrification and carbon uptake in the Rhône River plume (northwestern Mediterranean Sea) [0.03%]
罗纳河浮游生物群(NW地中海)的硝化率和碳吸收率
F Feliatra,M Bianchi
F Feliatra
Nitrification rates were measured along a salinity gradient in the Rhône River estuary, using specific inhibitors (allylthiourea and chlorate) coupled with the measurement of change in nitrite concentration and inorganic carbon uptake by n...