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Title: Functional Gene Diversity and Metabolic Potential of the Microbial Community in an Estuary-Shelf Environment

Abstract

Microbes play crucial roles in various biogeochemical processes in the ocean, including carbon (C), nitrogen (N), and phosphorus (P) cycling. Functional gene diversity and the structure of the microbial community determines its metabolic potential and therefore its ecological function in the marine ecosystem. However, little is known about the functional gene composition and metabolic potential of bacterioplankton in estuary areas. The East China Sea (ECS) is a dynamic marginal ecosystem in the western Pacific Ocean that is mainly affected by input from the Changjiang River and the Kuroshio Current. Here, using a high-throughput functional gene microarray (GeoChip), we analyzed the functional gene diversity, composition, structure, and metabolic potential of microbial assemblages in different ECS water masses. Four water masses determined by temperature and salinity relationship showed different patterns of functional gene diversity and composition. Generally, functional gene diversity [Shannon-Weaner's H and reciprocal of Simpson's 1/(1-D)] in the surface water masses was higher than that in the bottom water masses. The different presence and proportion of functional genes involved in C, N, and P cycling among the bacteria of the different water masses showed different metabolic preferences of the microbial populations in the ECS. Genes involved in starch metabolism (amyA andmore » nplT) showed higher proportion in microbial communities of the surface water masses than of the bottom water masses. In contrast, a higher proportion of genes involved in chitin degradation was observed in microorganisms of the bottom water masses. Moreover, we found a higher proportion of nitrogen fixation (nifH), transformation of hydroxylamine to nitrite (hao) and ammonification (gdh) genes in the microbial communities of the bottom water masses compared with those of the surface water masses. The spatial variation of microbial functional genes was significantly correlated with salinity, temperature, and chlorophyll based on canonical correspondence analysis, suggesting a significant influence of hydrologic conditions on water microbial communities. Our data provide new insights into better understanding of the functional potential of microbial communities in the complex estuarine-coastal environmental gradient of the ECS.« less

Authors:
 [1];  [1];  [2];  [2];  [1];  [3];  [1]
  1. Xiamen Univ. (China)
  2. Univ. of Oklahoma, Norman, OK (United States)
  3. Univ. of Oklahoma, Norman, OK (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Tsinghua Univ., Beijing (China)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1567073
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Frontiers in Microbiology
Additional Journal Information:
Journal Volume: 8; Journal Issue: JUN; Journal ID: ISSN 1664-302X
Publisher:
Frontiers Research Foundation
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES

Citation Formats

Wang, Yu, Zhang, Rui, He, Zhili, Van Nostrand, Joy D., Zheng, Qiang, Zhou, Jizhong, and Jiao, Nianzhi. Functional Gene Diversity and Metabolic Potential of the Microbial Community in an Estuary-Shelf Environment. United States: N. p., 2017. Web. doi:10.3389/fmicb.2017.01153.
Wang, Yu, Zhang, Rui, He, Zhili, Van Nostrand, Joy D., Zheng, Qiang, Zhou, Jizhong, & Jiao, Nianzhi. Functional Gene Diversity and Metabolic Potential of the Microbial Community in an Estuary-Shelf Environment. United States. https://doi.org/10.3389/fmicb.2017.01153
Wang, Yu, Zhang, Rui, He, Zhili, Van Nostrand, Joy D., Zheng, Qiang, Zhou, Jizhong, and Jiao, Nianzhi. Wed . "Functional Gene Diversity and Metabolic Potential of the Microbial Community in an Estuary-Shelf Environment". United States. https://doi.org/10.3389/fmicb.2017.01153. https://www.osti.gov/servlets/purl/1567073.
@article{osti_1567073,
title = {Functional Gene Diversity and Metabolic Potential of the Microbial Community in an Estuary-Shelf Environment},
author = {Wang, Yu and Zhang, Rui and He, Zhili and Van Nostrand, Joy D. and Zheng, Qiang and Zhou, Jizhong and Jiao, Nianzhi},
abstractNote = {Microbes play crucial roles in various biogeochemical processes in the ocean, including carbon (C), nitrogen (N), and phosphorus (P) cycling. Functional gene diversity and the structure of the microbial community determines its metabolic potential and therefore its ecological function in the marine ecosystem. However, little is known about the functional gene composition and metabolic potential of bacterioplankton in estuary areas. The East China Sea (ECS) is a dynamic marginal ecosystem in the western Pacific Ocean that is mainly affected by input from the Changjiang River and the Kuroshio Current. Here, using a high-throughput functional gene microarray (GeoChip), we analyzed the functional gene diversity, composition, structure, and metabolic potential of microbial assemblages in different ECS water masses. Four water masses determined by temperature and salinity relationship showed different patterns of functional gene diversity and composition. Generally, functional gene diversity [Shannon-Weaner's H and reciprocal of Simpson's 1/(1-D)] in the surface water masses was higher than that in the bottom water masses. The different presence and proportion of functional genes involved in C, N, and P cycling among the bacteria of the different water masses showed different metabolic preferences of the microbial populations in the ECS. Genes involved in starch metabolism (amyA and nplT) showed higher proportion in microbial communities of the surface water masses than of the bottom water masses. In contrast, a higher proportion of genes involved in chitin degradation was observed in microorganisms of the bottom water masses. Moreover, we found a higher proportion of nitrogen fixation (nifH), transformation of hydroxylamine to nitrite (hao) and ammonification (gdh) genes in the microbial communities of the bottom water masses compared with those of the surface water masses. The spatial variation of microbial functional genes was significantly correlated with salinity, temperature, and chlorophyll based on canonical correspondence analysis, suggesting a significant influence of hydrologic conditions on water microbial communities. Our data provide new insights into better understanding of the functional potential of microbial communities in the complex estuarine-coastal environmental gradient of the ECS.},
doi = {10.3389/fmicb.2017.01153},
journal = {Frontiers in Microbiology},
number = JUN,
volume = 8,
place = {United States},
year = {Wed Jun 21 00:00:00 EDT 2017},
month = {Wed Jun 21 00:00:00 EDT 2017}
}

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Cited by: 23 works
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Figures / Tables:

FIGURE 1 FIGURE 1: Sampling station (A), environmental parameter distribution (B), and temperature–salinity relationship (C) in the ECS. (B) Temperature (°C, a,b), salinity (c,d), and Chl a concentration (µg/L, e,f) of surface water samples (a, c, e) and bottom water samples (b, d, f). TWC, Taiwan warm current; KC, Kuroshio Current; YZR,more » Changjiang River.« less

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Spatiotemporal variation of the bacterioplankton community in the German Bight: from estuarine to offshore regions
journal, June 2016


Dynamics of Autotrophic Marine Planktonic Thaumarchaeota in the East China Sea
journal, April 2013


Functional Redundancy Supports Biodiversity and Ecosystem Function in a Closed and Constant Environment
journal, June 2004

  • Wohl, Debra L.; Arora, Satyam; Gladstone, Jessica R.
  • Ecology, Vol. 85, Issue 6
  • DOI: 10.1890/03-3050

Functional and phylogenetic diversity as predictors of biodiversity–ecosystem-function relationships
journal, August 2011

  • Flynn, Dan F. B.; Mirotchnick, Nicholas; Jain, Meha
  • Ecology, Vol. 92, Issue 8
  • DOI: 10.1890/10-1245.1

Evaluation of 50-mer oligonucleotide arrays for detecting microbial populations in environmental samples
journal, April 2004

  • Tiquia, Sonia M.; Wu, Liyou; Chong, Song C.
  • BioTechniques, Vol. 36, Issue 4
  • DOI: 10.2144/04364rr02

Temperature and substrates as interactive limiting factors for marine heterotrophic bacteria
journal, January 2001


Effect of nutrient amendments on bacterioplankton production, community structure, and DOC utilization in the northwestern Sargasso Sea
journal, January 2002

  • Carlson, Ca; Giovannoni, Sj; Hansell, Da
  • Aquatic Microbial Ecology, Vol. 30
  • DOI: 10.3354/ame030019

Influence of hydrographic conditions on picoplankton distribution in the East China Sea
journal, January 2002

  • Nianzhi Jiao, N.; Yanhui Yang, Y.; Hiroshi Koshikawa, H.
  • Aquatic Microbial Ecology, Vol. 30
  • DOI: 10.3354/ame030037

Bacterioplankton dynamics in the York River estuary: primary influence of temperature and freshwater inputs
journal, January 2003

  • Schultz, Ge; White, Ed; Ducklow, Hw
  • Aquatic Microbial Ecology, Vol. 30
  • DOI: 10.3354/ame030135

Seasonal variation in the phytoplankton community of a continental-shelf sea: the East China Sea
journal, December 2014

  • Guo, S.; Feng, Y.; Wang, L.
  • Marine Ecology Progress Series, Vol. 516
  • DOI: 10.3354/meps10952

Phylogenetic shifts of bacterioplankton community composition along the Pearl Estuary: the potential impact of hypoxia and nutrients
journal, February 2015


Spring phytoplankton bloom dynamics in Norwegian coastal waters: Microbial community succession and diversity
journal, January 2004

  • Larsen, Aud; Flaten, Gro A. Fonnes; Sandaa, Ruth-Anne
  • Limnology and Oceanography, Vol. 49, Issue 1
  • DOI: 10.4319/lo.2004.49.1.0180

Biogeography of major bacterial groups in the Delaware Estuary
journal, September 2005

  • Kirchman, David L.; Dittel, Ana I.; Malmstrom, Rex R.
  • Limnology and Oceanography, Vol. 50, Issue 5
  • DOI: 10.4319/lo.2005.50.5.1697

Works referencing / citing this record:

Bacterial Carbon Cycling in the River Plume in the Northern South China Sea During Summer
journal, November 2018

  • Xu, Jie; Li, Xiangfu; Shi, Zhen
  • Journal of Geophysical Research: Oceans, Vol. 123, Issue 11
  • DOI: 10.1029/2018jc014277

Evidences of aromatic degradation dominantly via the phenylacetic acid pathway in marine benthic Thermoprofundales
journal, November 2019

  • Liu, Wei‐Wei; Pan, Jie; Feng, Xiaoyuan
  • Environmental Microbiology, Vol. 22, Issue 1
  • DOI: 10.1111/1462-2920.14850

Functional gene diversity and metabolic potential of the microbial community in an estuary-shelf environment
dataset, January 2017


Water characteristics of estuary-shelf environment stations in the East China Sea
dataset, January 2017


Gulf Stream Ring Water Intrusion on the Mid-Atlantic Bight Continental Shelf Break Affects Microbially Driven Carbon Cycling
journal, July 2019

  • Hoarfrost, Adrienne; Balmonte, John Paul; Ghobrial, Sherif
  • Frontiers in Marine Science, Vol. 6
  • DOI: 10.3389/fmars.2019.00394

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.