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Functions of two methyl-accepting chemotaxis proteins ofPseudoalteromonas arabiensis N1230-9
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Jiafan JIN, Guojing SHU, Sidong ZHU, Jifang YANG, Jigang CHEN*
Acta Microbiologica Sinica | 2024, 64(5) : 1641 - 1653
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Acta Microbiologica Sinica | 2024, 64(5): 1641-1653
• Research Articles •
Functions of two methyl-accepting chemotaxis proteins ofPseudoalteromonas arabiensis N1230-9
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Jiafan JIN, Guojing SHU, Sidong ZHU, Jifang YANG, Jigang CHEN*
Affiliations
  • College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, Zhejiang, China
Published: 2024-05-04 doi: 10.13343/j.cnki.wsxb.20230782
Outline
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[Objective] Pseudoalteromonas, an endemic and dominant genus in the ocean, possesses multiple methyl-accepting chemotaxis proteins (MCPs), the functions of which remain unclear. [Methods] The chemotaxis ofPseudoalteromonas arabiensis N1230-9 isolated from surface seawater of the Pacific Ocean towards 23 carbon sources was analyzed by a plate-based assay for swimming motility. Two sCache domain-containing genes (woc28264 andwoc27036) encoding MCPs were deleted by homologous recombination. The chemotaxis of the two mutants to 10 carbon sources was then analyzed. [Results] Strain N1230-9 showed obvious chemotaxis to 10 carbon sources: trehalose, maltose, sucrose, N-acetylglucosamine, L-malic acid, sodium acetate, sodium propionate, sodium pyruvate, citric acid, and succinic acid. WOC28264 was a specific chemotactic receptor for L-malic acid and sucrose, while WOC27036 was a specific chemotactic receptor for citric acid and succinic acid. Both WOC28264 and WOC27036 were chemotactic receptors for N-acetylglucosamine and trehalose. [Conclusion] WOC28264 and WOC27036 have overlapping carbon source effectors.

Pseudoalteromonas  /  chemotaxis  /  methyl-accepting chemotaxis protein
Jiafan JIN, Guojing SHU, Sidong ZHU, Jifang YANG, Jigang CHEN. Functions of two methyl-accepting chemotaxis proteins ofPseudoalteromonas arabiensis N1230-9[J]. Acta Microbiologica Sinica, 2024 , 64 (5) : 1641 -1653 . DOI: 10.13343/j.cnki.wsxb.20230782
Funding
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  • First-class Discipline of Biological Engineering of Zhejiang Province(CX2022011)
  • Ningbo Natural Science Foundation(2023J301)
  • National Program on Global Change and Air-Sea Interaction (Phase Ⅱ)(GASI-04-HYDZ-02)
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Year 2024 volume 64 Issue 5
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Article Info
doi: 10.13343/j.cnki.wsxb.20230782
  • Receive Date：2023-12-19
  • Online Date：2026-03-19
  • Published：2024-05-04
Article Data
Affiliations
History
  • Received：2023-12-19
  • Accepted：2024-01-30
Funding
First-class Discipline of Biological Engineering of Zhejiang Province(CX2022011)
Ningbo Natural Science Foundation(2023J301)
National Program on Global Change and Air-Sea Interaction (Phase Ⅱ)(GASI-04-HYDZ-02)
Affiliations
    College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, Zhejiang, China

Corresponding:

*CHEN Jigang, E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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