Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study

Aerobic methane (CH4) oxidation plays a significant role in marine CH4 consumption. Temperature changes resulting from, for example, global warming, have been suggested to be able to influence methanotrophic communities and their CH4</sub&g...

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Autores principales:	Jing Li, Xiaoqing Xu, Changling Liu, Nengyou Wu, Zhilei Sun, Xingliang He, Ye Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	marine environment methanotroph aerobic methane oxidation temperature Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/b7f5eb3309c146b29fbbdbd20783224b
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spelling	oai:doaj.org-article:b7f5eb3309c146b29fbbdbd20783224b2021-11-25T18:04:54ZActive Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study10.3390/jmse91112612077-1312https://doaj.org/article/b7f5eb3309c146b29fbbdbd20783224b2021-11-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1261https://doaj.org/toc/2077-1312Aerobic methane (CH<sub>4</sub>) oxidation plays a significant role in marine CH<sub>4</sub> consumption. Temperature changes resulting from, for example, global warming, have been suggested to be able to influence methanotrophic communities and their CH<sub>4</sub> oxidation capacity. However, exact knowledge regarding temperature controls on marine aerobic methane oxidation is still missing. In this study, CH<sub>4</sub> consumption and the methanotrophic community structure were investigated by incubating sediments from shallow (Bohai Bay) and deep marine environments (East China Sea) at 4, 15, and 28 °C for up to 250 days. The results show that the abundance of the methanotrophic population, dominated by the family <i>Methylococcaceae</i> (type I methanotrophs), was significantly elevated after all incubations and that aerobic methane oxidation for both areas had a strong temperature sensitivity. A positive correlation between the CH<sub>4</sub> oxidation rate and temperature was witnessed in the Bohai Bay incubations, whereas for the East China Sea incubations, the optimum temperature was 15 °C. The systematic variations of <i>pmoA</i> OTUs between the Bohai Bay and East China Sea incubations indicated that the exact behaviors of CH<sub>4</sub> oxidation rates with temperature are related to the different methanotrophic community structures in shallow and deep seas. These results are of great significance for quantitatively evaluating the biodegradability of CH<sub>4</sub> in different marine environments.Jing LiXiaoqing XuChangling LiuNengyou WuZhilei SunXingliang HeYe ChenMDPI AGarticlemarine environmentmethanotrophaerobic methane oxidationtemperatureNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1261, p 1261 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	marine environment methanotroph aerobic methane oxidation temperature Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	marine environment methanotroph aerobic methane oxidation temperature Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Jing Li Xiaoqing Xu Changling Liu Nengyou Wu Zhilei Sun Xingliang He Ye Chen Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
description	Aerobic methane (CH<sub>4</sub>) oxidation plays a significant role in marine CH<sub>4</sub> consumption. Temperature changes resulting from, for example, global warming, have been suggested to be able to influence methanotrophic communities and their CH<sub>4</sub> oxidation capacity. However, exact knowledge regarding temperature controls on marine aerobic methane oxidation is still missing. In this study, CH<sub>4</sub> consumption and the methanotrophic community structure were investigated by incubating sediments from shallow (Bohai Bay) and deep marine environments (East China Sea) at 4, 15, and 28 °C for up to 250 days. The results show that the abundance of the methanotrophic population, dominated by the family <i>Methylococcaceae</i> (type I methanotrophs), was significantly elevated after all incubations and that aerobic methane oxidation for both areas had a strong temperature sensitivity. A positive correlation between the CH<sub>4</sub> oxidation rate and temperature was witnessed in the Bohai Bay incubations, whereas for the East China Sea incubations, the optimum temperature was 15 °C. The systematic variations of <i>pmoA</i> OTUs between the Bohai Bay and East China Sea incubations indicated that the exact behaviors of CH<sub>4</sub> oxidation rates with temperature are related to the different methanotrophic community structures in shallow and deep seas. These results are of great significance for quantitatively evaluating the biodegradability of CH<sub>4</sub> in different marine environments.
format	article
author	Jing Li Xiaoqing Xu Changling Liu Nengyou Wu Zhilei Sun Xingliang He Ye Chen
author_facet	Jing Li Xiaoqing Xu Changling Liu Nengyou Wu Zhilei Sun Xingliang He Ye Chen
author_sort	Jing Li
title	Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
title_short	Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
title_full	Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
title_fullStr	Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
title_full_unstemmed	Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study
title_sort	active methanotrophs and their response to temperature in marine environments: an experimental study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b7f5eb3309c146b29fbbdbd20783224b
work_keys_str_mv	AT jingli activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT xiaoqingxu activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT changlingliu activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT nengyouwu activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT zhileisun activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT xinglianghe activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy AT yechen activemethanotrophsandtheirresponsetotemperatureinmarineenvironmentsanexperimentalstudy
_version_	1718411638325903360

Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study

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