Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii

Seagrass meadows, as typical “blue carbon” ecosystems, play critical ecological roles in the marine ecosystem and decline every year. The application of biochar in soil has been proposed as a potential soil amendment to improve soil quality and mitigate global climate change. The effects of biochar...

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Autores principales:	Jian Zhang, Juan Ling, Weiguo Zhou, Wenqian Zhang, Fangfang Yang, Zhangliang Wei, Qingsong Yang, Ying Zhang, Junde Dong
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	seagrass biochar addition nutrient cycling bacterial community community assembly Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/4ad21d197b0c4ce3b5315da803920640
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spelling	oai:doaj.org-article:4ad21d197b0c4ce3b5315da8039206402021-12-02T11:42:37ZBiochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii1664-302X10.3389/fmicb.2021.783334https://doaj.org/article/4ad21d197b0c4ce3b5315da8039206402021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmicb.2021.783334/fullhttps://doaj.org/toc/1664-302XSeagrass meadows, as typical “blue carbon” ecosystems, play critical ecological roles in the marine ecosystem and decline every year. The application of biochar in soil has been proposed as a potential soil amendment to improve soil quality and mitigate global climate change. The effects of biochar on soil bacterial activities are integrally linked to the potential of biochar in achieving these benefits. However, biochar has been rarely applied in marine ecosystems. Whether the application of biochar could work on the seagrass ecosystem remained unknown. In this study, we investigated the responses of sediment and rhizosphere bacterial communities of seagrass Thalassia hemprichii to the biochar addition derived from maize at ratios of 5% by dry weight in the soil during a one-month incubation. Results indicated that the biochar addition significantly changed the sedimental environment with increasing pH, total phosphorus, and total kalium while total nitrogen decreased. Biochar addition significantly altered both the rhizosphere and sediment bacterial community compositions. The significant changes in rhizosphere bacterial community composition occurred after 30days of incubation, while the significant variations in sediment bacterial community composition distinctly delayed than in sediment occurred on the 14th day. Biochar application improved nitrification and denitrification, which may accelerate nitrogen cycling. As a stabilizer to communities, biochar addition decreased the importance of deterministic selection in sediment and changed the bacterial co-occurrence pattern. The biochar addition may promote seagrass photosynthesis and growth by altering the bacterial community compositions and improving nutrient circulation in the seagrass ecosystem, contributing to the seagrass health improvement. This study provided a theoretical basis for applying biochar to the seagrass ecosystem and shed light on the feasible application of biochar in the marine ecosystem.Graphical AbstractJian ZhangJian ZhangJian ZhangJian ZhangJian ZhangJuan LingJuan LingJuan LingJuan LingJuan LingWeiguo ZhouWeiguo ZhouWeiguo ZhouWeiguo ZhouWenqian ZhangWenqian ZhangWenqian ZhangWenqian ZhangWenqian ZhangFangfang YangFangfang YangFangfang YangFangfang YangZhangliang WeiZhangliang WeiZhangliang WeiZhangliang WeiQingsong YangQingsong YangQingsong YangQingsong YangQingsong YangYing ZhangYing ZhangYing ZhangYing ZhangJunde DongJunde DongJunde DongJunde DongJunde DongFrontiers Media S.A.articleseagrassbiochar additionnutrient cyclingbacterial communitycommunity assemblyMicrobiologyQR1-502ENFrontiers in Microbiology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	seagrass biochar addition nutrient cycling bacterial community community assembly Microbiology QR1-502
spellingShingle	seagrass biochar addition nutrient cycling bacterial community community assembly Microbiology QR1-502 Jian Zhang Jian Zhang Jian Zhang Jian Zhang Jian Zhang Juan Ling Juan Ling Juan Ling Juan Ling Juan Ling Weiguo Zhou Weiguo Zhou Weiguo Zhou Weiguo Zhou Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Fangfang Yang Fangfang Yang Fangfang Yang Fangfang Yang Zhangliang Wei Zhangliang Wei Zhangliang Wei Zhangliang Wei Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Ying Zhang Ying Zhang Ying Zhang Ying Zhang Junde Dong Junde Dong Junde Dong Junde Dong Junde Dong Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
description	Seagrass meadows, as typical “blue carbon” ecosystems, play critical ecological roles in the marine ecosystem and decline every year. The application of biochar in soil has been proposed as a potential soil amendment to improve soil quality and mitigate global climate change. The effects of biochar on soil bacterial activities are integrally linked to the potential of biochar in achieving these benefits. However, biochar has been rarely applied in marine ecosystems. Whether the application of biochar could work on the seagrass ecosystem remained unknown. In this study, we investigated the responses of sediment and rhizosphere bacterial communities of seagrass Thalassia hemprichii to the biochar addition derived from maize at ratios of 5% by dry weight in the soil during a one-month incubation. Results indicated that the biochar addition significantly changed the sedimental environment with increasing pH, total phosphorus, and total kalium while total nitrogen decreased. Biochar addition significantly altered both the rhizosphere and sediment bacterial community compositions. The significant changes in rhizosphere bacterial community composition occurred after 30days of incubation, while the significant variations in sediment bacterial community composition distinctly delayed than in sediment occurred on the 14th day. Biochar application improved nitrification and denitrification, which may accelerate nitrogen cycling. As a stabilizer to communities, biochar addition decreased the importance of deterministic selection in sediment and changed the bacterial co-occurrence pattern. The biochar addition may promote seagrass photosynthesis and growth by altering the bacterial community compositions and improving nutrient circulation in the seagrass ecosystem, contributing to the seagrass health improvement. This study provided a theoretical basis for applying biochar to the seagrass ecosystem and shed light on the feasible application of biochar in the marine ecosystem.Graphical Abstract
format	article
author	Jian Zhang Jian Zhang Jian Zhang Jian Zhang Jian Zhang Juan Ling Juan Ling Juan Ling Juan Ling Juan Ling Weiguo Zhou Weiguo Zhou Weiguo Zhou Weiguo Zhou Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Fangfang Yang Fangfang Yang Fangfang Yang Fangfang Yang Zhangliang Wei Zhangliang Wei Zhangliang Wei Zhangliang Wei Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Ying Zhang Ying Zhang Ying Zhang Ying Zhang Junde Dong Junde Dong Junde Dong Junde Dong Junde Dong
author_facet	Jian Zhang Jian Zhang Jian Zhang Jian Zhang Jian Zhang Juan Ling Juan Ling Juan Ling Juan Ling Juan Ling Weiguo Zhou Weiguo Zhou Weiguo Zhou Weiguo Zhou Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Wenqian Zhang Fangfang Yang Fangfang Yang Fangfang Yang Fangfang Yang Zhangliang Wei Zhangliang Wei Zhangliang Wei Zhangliang Wei Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Qingsong Yang Ying Zhang Ying Zhang Ying Zhang Ying Zhang Junde Dong Junde Dong Junde Dong Junde Dong Junde Dong
author_sort	Jian Zhang
title	Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
title_short	Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
title_full	Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
title_fullStr	Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
title_full_unstemmed	Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii
title_sort	biochar addition altered bacterial community and improved photosynthetic rate of seagrass: a mesocosm study of seagrass thalassia hemprichii
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/4ad21d197b0c4ce3b5315da803920640
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Biochar Addition Altered Bacterial Community and Improved Photosynthetic Rate of Seagrass: A Mesocosm Study of Seagrass Thalassia hemprichii

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