Influence of growth and environmental conditions on cell surface hydrophobicity of Pseudomonas fluorescens in non-specific adhesion
作者： T K Jana , A K Srivastava , K Csery , D K Arora
DOI: 10.1139/W99-104
关键词: Adhesion 、 Pseudomonadales 、 Pseudomonadaceae 、 Growth medium 、 Microbiology 、 Proteinase K 、 Hydrophilic interaction chromatography 、 Food science 、 Macrophomina phaseolina 、 Biology 、 Pseudomonas fluorescens
摘要: The relative cell surface hydrophobicity (CSH) of 18 soil isolates Pseudomonas fluorescens, determined by phase exclusion, hydrophobic interaction chromatography (HIC), electrostatic (ESIC), and contact angle, revealed large degrees variability. Variation in the adhesion efficiency to Macrophomina phaseolina hyphae/sclerotia these was also examined. Two such with maximum (32.8%; isolate 12-94) minimum (12%; 30-94) CSH were selected for further study. Early- mid-log exponential cells more than those stationary phase, influenced fluctuations temperatures pH. Isolate 12-94 exhibited high (32.3%) at 30°C, compared lower values (28-24%) higher temperature range (35-40°C). Increasing concentrations either Zn2+, Fe3+, K+, Mg2+ growth medium associated increased CSH. Trypsin, pepsin, proteinase K (75 150 ...
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