Publications by authors named "Ti-Kun Zhang"

Article Synopsis
  • A new actinobacterial strain called R-N-C8 was isolated from rhizosphere soil in Yunnan Province, China, and showed high genetic similarity to existing strains CGMCC 1.7056 and KCTC 19804.
  • Phylogenetic analysis indicated that R-N-C8 occupies a distinct branch separate from its closest relatives, supported by unique characteristics in its cellular membrane and fatty acid profile.
  • The strain's genomic and phenotypic data led to the conclusion that it represents a new species, officially named sp. nov., with R-N-C8 designated as the type strain.
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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.

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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.

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Article Synopsis
  • A new Gram-stain negative, aerobic, and motile bacterium, strain 3.1105, was discovered in soil from Tiandong cave in Guizhou, PR China, and is notable for its optimal growth at 25-30°C and pH 7.0.
  • Its chemical profile includes being oxidase and catalase positive, with a specific respiratory quinone (Q-10) and unique fatty acid composition.
  • Phylogenetic analysis shows strain 3.1105 is closely related to certain known species but represents a distinct new species, proposed to be named sp. nov., with type strain 3.1105=KCTC 62978=CCTCC AB 2018268.
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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.

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A 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.

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A 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.

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Accumulated 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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