气候变化领域集成服务门户(CCPortal): Distribution of the N2-fixing cyanobacterium Candidatus Atelocyanobacterium thalassa in the Mexican Pacific upwelling system under two contrasting El Niño Southern Oscillation conditions

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DOI	10.1111/1758-2229.13237
	Distribution of the N2-fixing cyanobacterium Candidatus Atelocyanobacterium thalassa in the Mexican Pacific upwelling system under two contrasting El Niño Southern Oscillation conditions
	Vieyra-Mexicano, Cinthya; Souza, Valeria; Pajares, Silvia
发表日期	2024
ISSN	1758-2229
起始页码	16
结束页码	1
卷号	16 期号:1
英文摘要	The unicellular cyanobacterium Candidatus Atelocyanobacterium thalassa (UCYN-A) is a key diazotroph in the global ocean owing to its high N-2 fixation rates and wide distribution in marine environments. Nevertheless, little is known about UCYN-A in oxygen-deficient zones (ODZs), which may be optimal environments for marine diazotrophy. Therefore, the distribution and diversity of UCYN-A were studied in two consecutive years under contrasting phases (La Ni & ntilde;a vs. El Ni & ntilde;o) of El Ni & ntilde;o Southern Oscillation (ENSO) along a transect in the ODZ of the Mexican Pacific upwelling system. Of the three UCYN-A sublineages found, UCYN-A1 and UCYN-A3 were barely detected, whereas UCYN-A2 was dominant in all the stations and showed a wide distribution in both ENSO phases. The presence of UCYN-A was associated with well-oxygenated waters, but it was also found for the first time under suboxic conditions (<20 mu M) at the bottom of a shallow coastal station, within the oxygen-poor and nutrient-rich Subsurface Subtropical water mass. This study contributes to the understanding of UCYN-A distribution under different oceanographic conditions associated with ENSO phases in upwelling systems, especially because of the current climate change and increasing deoxygenation in many areas of the world's oceans.
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Microbiology
WOS类目	Environmental Sciences ; Microbiology
WOS记录号	WOS:001161694200001
来源期刊	ENVIRONMENTAL MICROBIOLOGY REPORTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297401
作者单位	Universidad Nacional Autonoma de Mexico; Universidad Nacional Autonoma de Mexico; Universidad Nacional Autonoma de Mexico
推荐引用方式 GB/T 7714	Vieyra-Mexicano, Cinthya,Souza, Valeria,Pajares, Silvia. Distribution of the N2-fixing cyanobacterium Candidatus Atelocyanobacterium thalassa in the Mexican Pacific upwelling system under two contrasting El Niño Southern Oscillation conditions[J],2024,16(1).
APA	Vieyra-Mexicano, Cinthya,Souza, Valeria,&Pajares, Silvia.(2024).Distribution of the N2-fixing cyanobacterium Candidatus Atelocyanobacterium thalassa in the Mexican Pacific upwelling system under two contrasting El Niño Southern Oscillation conditions.ENVIRONMENTAL MICROBIOLOGY REPORTS,16(1).
MLA	Vieyra-Mexicano, Cinthya,et al."Distribution of the N2-fixing cyanobacterium Candidatus Atelocyanobacterium thalassa in the Mexican Pacific upwelling system under two contrasting El Niño Southern Oscillation conditions".ENVIRONMENTAL MICROBIOLOGY REPORTS 16.1(2024).