4.7 Article

Comparison of microbial community structure and function in sediment between natural regenerated and original mangrove forests in a National Nature Mangrove Reserve, South China

期刊

MARINE POLLUTION BULLETIN
卷 163, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2020.111955

关键词

Natural regenerated mangrove; Microbial community; Enzyme; Biolog EcoPlates (TM); Phospholipid fatty acid

资金

  1. National Natural Science Foundation of China [41806107, 31670116, 41876090, 41976161]
  2. National Key Research and Development Program of China [2017YFC0506100]
  3. Science, Technology and Innovation Commission of Shenzhen Municipality [JCYJ20200109140605948]
  4. Research Grants Council of the Hong Kong Special Administrative Region, China [UGC/IDS(R) 16/19]

向作者/读者索取更多资源

This study compared the microbial community structure and function in sediments of a 17-year-old natural regenerated mangrove forest with the original forest, finding no significant differences in microbial metabolism of carbon substrates but lower enzyme activities in the regenerated forest. Seasonal differences in enzyme activities and microbial characteristics were significant in both forests, with the regenerated forest showing higher sensitivity. Correspondence analysis suggested that sediment microbial characteristics in natural regenerated mangroves could be restored.
Mangrove has been destroyed and reforestation is often undertaken, but whether a regenerated forest could restore its ecological function is not clear. This study compares microbial community structure and function in sediment of the 17-years old natural regenerated mangrove forest (Y17) with the original forest (Y74). No significant differences in phospholipid fatty acid (PLFA) profiles and microbial metabolism of most carbon substrates were found between these two forests. However, activities of dehydrogenase, protease, cellulase and phosphatase were lower in Y17 than Y74, and some specific microbial functions were also different. Both forests exhibited significant seasonal differences in enzyme activities and microbial characteristics, but such difference was larger in Y17 than Y74, indicating the regenerated forest was more sensitive to season. Correspondence analysis based on PLFA profiles and enzyme activities revealed the microbial community in Y17 was comparable to Y74, suggesting sediment microbial characteristics in natural regenerated mangroves could be restored.

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