Linkages between organic carbon composition and microbial community structure in two contrasting subtropical mangrove sediments in southern China

Zhao，Xin1,2; Chen，Zhiyan1; Xu，Yunping3; Zhai，Xiaohui4; Song，Xiuqing2; Xu，Hualin5; Lü，Xiaoxia6; Li，Xinxin1,2

2023-12-15

10.1016/j.rsma.2023.103159

Regional Studies in Marine Science   Impact Factor & Quartile

2352-4855

2352-4855

Terrestrial and marine derived organic carbon (OC) accumulated in coastal mangrove sediment affect the structure of the benthic microbial community. This study collected sediment cores from subtropical coastal Xiwan and Maipo mangrove in southern China to study the linkages between the sedimentary OC and microbial community structure. The Maipo sediments showed more TOC (2.20 ± 0.20 vs. 1.67 ± 0.35 %), slightly depleted δC(−25.59 ± 0.71 vs. −25.07 ± 1.46 ‰), higher average Chl-a (62.25 ± 30.74 vs. 34.65±12.92μg/g TOC) and lignin (3.14 ± 2.21 vs. 1.80 ± 0.80 mg/100 mg TOC) content mostly due to larger coverage area of mangrove forests than coastal Xiwan sediment. While the dominate bacteria phylum and archaea class were the same, the microbes stratified to top, middle​ and bottom community with depths. The two cores also showed different indicator species and relative microbial abundance. Certain bacteria and archaea were positively correlated with the phenolic compounds indicating their involvement in lignin degradation. Therefore, different OC sources and decomposition status could be crucial shaping the microbial community.

Biomarkers Mangrove sediment Microbial community Organic carbon

SCI

English

First ; Corresponding

National Natural Science Foundation of China[42076029];National Natural Science Foundation of China[42276045];

Environmental Sciences & Ecology ; Marine & Freshwater Biology

Ecology ; Marine & Freshwater Biology

WOS:001066537500001

ELSEVIER

2-s2.0-85168853303

Scopus

1.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
2.Shanghai Sheshan National Geophysical Observatory,Shanghai Earthquake Agency,Shanghai,China
3.College of Marine Sciences,Shanghai Ocean University,Shanghai,China
4.Shenzhen Marine Development Research Promotion Center,Shenzhen,China
5.Guangdong Neilingding Futian National Nature Reserve Administration Bureal,Shenzhen,China
6.Hubei Key Laboratory of Marine Geological Resource,China University of Geosciences,Wuhan,China

Zhao，Xin,Chen，Zhiyan,Xu，Yunping,et al. Linkages between organic carbon composition and microbial community structure in two contrasting subtropical mangrove sediments in southern China[J]. Regional Studies in Marine Science,2023,66.

Zhao，Xin.,Chen，Zhiyan.,Xu，Yunping.,Zhai，Xiaohui.,Song，Xiuqing.,...&Li，Xinxin.(2023).Linkages between organic carbon composition and microbial community structure in two contrasting subtropical mangrove sediments in southern China.Regional Studies in Marine Science,66.

Zhao，Xin,et al."Linkages between organic carbon composition and microbial community structure in two contrasting subtropical mangrove sediments in southern China".Regional Studies in Marine Science 66(2023).