An aerobic, rod-shaped, Gram-stain-positive, actinobacterial strain, designated 1.0914, was isolated from a stalactite sample collected from a cave located in Guizhou Province, southwest PR China. Based on 16S rRNA gene sequence analysis, strain 1.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
April 2020
A Gram-stain-negative, non-motile and rod-shaped bacterium, designated strain 5.0403-2, was isolated from a cave soil sample collected from Tiandong Cave, Guizhou Province, south-west PR China. Cells showed positive oxidase and catalase reactions.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
January 2020
A Gram-stain-negative, yellow-green bacterium, designated 1.1416, was isolated from wormcast of . The strain was non-motile, rod-shaped, and grew optimally on NA medium at 30 °C, pH 7.
View Article and Find Full Text PDFA Gram-stain-negative, rod-shaped, non-motile, aerobic, catalase-negative and oxidase-positive bacterium, designated strain Sn-9-2, was isolated from a cave soil sample collected from Tiandong cave, Guizhou Province, south-west PR China. Growth occurred at 15-40 °C (optimum, 30 °C), at pH 5.0-9.
View Article and Find Full Text PDFA Gram-stain-negative, aerobic, non-motile and rod-shaped bacterium, designated strain X7X, was isolated from a rhizosphere soil sample of Nicotiana tabacum L. collected from a tobacco factory located in Kunming, south-western China. The cells showed oxidase-positive and catalase-positive reactions.
View Article and Find Full Text PDFAccumulated evidence suggests that root exudates have a major role in mediating plant-microbe interactions in the rhizosphere. Here, we characterized tobacco root exudates (TREs) by GC-MS and nicotine, scopoletin, and octadecane were identified as three main components of TREs. Qualitative and quantitative chemotaxis assays revealed that Pseudomonas aeruginosa NXHG29 with antagonistic activity displayed positive chemotactic responses towards TREs and their three main components (nicotine, scopoletin, octadecane) and its enhanced chemotaxis were induced by these substances in a concentration-dependent manner.
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