Effect of long-term lead exposure on the seawater and sediment bacteria from heterogeneous continuous flow cultures [0.03%]
长期接触铅对异质连续流动培养海水和沉积物细菌的影响
T L Tan
T L Tan
Lead-influenced changes of the composition of seawater and sediment bacteria were studied in two flow cultures run with lead-contaminated artificial seawater (1 mg Pb(2+)1(-1)) and one control culture. During the experiment viable counts of...
M Karydis
M Karydis
The accumulation of exogenous hydrocarbons by the marine diatomCyclotella cryptica grown in culture has been studied using gas chromatography. Exposure of the alga to paraffins for 10 days results in accumulation of n-alkanes having between...
Slope of the Monod equation as an indicator of advantage in nutrient competition [0.03%]
莫诺德方程的斜率作为营养竞争优势的指标
F P Healey
F P Healey
Apparently by analogy with enzyme kinetics, the half-saturation value (K) for nutrient uptake or growth has frequently been overemphasized in discussions of competition, and the role of maximum rates (Rm) has not been given sufficient empha...
Structure, diversity, and catabolic potentialities of aerobic heterotrophic bacterial populations associated with continuous cultures of natural marine phytoplankton [0.03%]
与自然海洋浮游植物连续培养相关的好氧异养细菌群体的结构、多样性和降解潜能
Y P Martin,M A Bianchi
Y P Martin
Variations of structure (probable taxonomic generic groups; ecological profiles), diversity (Shannon index, ¯H), and average catabolic potentialities (strain's average exoenzyme equipment, EAI; average carbonaceous compound utilization, UA...
A method for the analysis of acetate turnover in a coastal marine sediment [0.03%]
测定沿海海洋沉积物中乙酸周转的一种方法
J Ansbaek,T H Blackburn
J Ansbaek
The concentrations of volatile fatty acids were measured in the pore water of sediment from the Limfjorden, Denmark. The pore water was freeze-dried and the acids, which were redissolved in formic acid, were analyzed by gas chromatography o...
Budding and prosthecate bacteria from freshwater habitats of various trophic states [0.03%]
来自各种营养水平淡水生境的芽孢杆菌和柄细菌
J T Staley,K C Marshall,V B Skerman
J T Staley
Budding and prosthecate bacteria were enumerated in spring and summer by viable counting procedures in several freshwater habitats in Australia including oligotrophic lakes, a mesotrophic lake, and eutrophic ponds.Caulobacter spp. were the ...
H Güde
H Güde
In continuous culture enrichments that were inoculated with activated sludge and were fed with polymeric substrates, freely dispersed single-celled bacteria belonging to theCytophaga group dominated among the initial populations, irrespecti...
Observations on naturally and artificially diseased tropical corals: A scanning electron microscope study [0.03%]
扫描电镜技术在研究自然和人工感染的热带珊瑚中的应用观察
H W Ducklow,R Mitchell
H W Ducklow
Scanning electron microscopic (SEM) observations of naturally and artificially diseased corals reveal that the disease is characterized by a filamentous matrix of cyanobacterial andBeggiatoa filaments. Spiral bacteria are commonly embedded ...
Michaelis constant (K m ) of acid phospatase as affected by montmorillonite, illite, and kaolinite clay minerals [0.03%]
酸性磷酸酶的米氏常数(Km)受蒙脱石、伊利石和高岭石影响
H E Makboul,J C Ottow
H E Makboul
The influence of Ca homoionic clay minerals (montmorillonite, illite, and kaolinite) on the activity,K m , andV m values of acid phosphatase was examined in model experiments. At each substrate (p-nitrophenyl phosphate) level tested, the ad...
Isolation from soils ofNitrobacter and evidence for novel serotypes using immunofluorescence [0.03%]
土壤中硝化细菌的分离及其新血清型的免疫荧光证据
A Josserand,J C Cleyet-Marel
A Josserand
To study the ecology of chemoautotrophic nitrifying bacteria (Nitrobacter), the immunofluorescence technique has been used. Fluorescent antibodies againstNitrobacter winogradskyi andNitrobacter agilis, the two known serotypes, have not labe...