Advances in Earth Science ›› 2017, Vol. 32 ›› Issue (9): 959-971. doi: 10.11867/j.issn.1001-8166.2017.09.0940

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Amino Sugars and Their Indicating Role in the Cycling of Organic Matter in Marine Environment

Ren Chengzhe, Yuan Huamao *, Song Jinming, Li Xuegang, Li Ning, Duan Liqin   

  1. 1.Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
    2.University of Chinese Academy of Sciences, Beijing 100049, China;
    3.Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
  • Received:2017-03-03 Revised:2017-07-17 Online:2017-09-20 Published:2017-09-20
  • Contact: Yuan Huamao(1975-), male, Nantong County, Jiangsu Province, Professor. Research areas include marine biogeochemistry.E-mail:yuanhuamao@qdio.ac.cn
  • About author:Ren Chengzhe (1991-), male, Baicheng County, Jilin Province, Ph.D studernt. Research areas include marine biogeochemistry.E-mail:renchengzhe@outlook.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China and Shandong Province Joint Fund “Biogeochemical mechanism of marine ecological environment changes” (No.U1406403); The National Basic Research Program of China “Transportation and transformation of nutrients and theirenvironmental effects in the gulf”(No.2015CB452902)

Ren Chengzhe, Yuan Huamao, Song Jinming, Li Xuegang, Li Ning, Duan Liqin. Amino Sugars and Their Indicating Role in the Cycling of Organic Matter in Marine Environment[J]. Advances in Earth Science, 2017, 32(9): 959-971.

As a kind of marine organic matter with important geochemical characteristics, amino sugars can effectively reflect the source, diagenetic state and mineralization process of organic matter by their concentration and composition in marine environment. This article systematically concluded the research progresses of amino sugars from the aspects of their source, composition and distribution characteristics in marine environment, and the role as a biomarker indicating source and diagenetic state of marine organic matter. The result showed that the macromolecular morphology, the oxygen and nutrient level and the sedimentary environment could affect the reactivity of amino sugars. The higher ratios of glucosamine to galactosamine (GlcN/GalN) and the Total Hydrolysable Amino Acids to Total Hydrolysable Amino Sugars (THAA/THAS) can reflect the fresh planktonic organic matter source and the lower ratios can reflect the conversion from planktonic to bacterial organic matter. The carbon and nitrogen normalized yield of total hydrolysable amino sugars, however, could give contradictory results depending on the relative contribution of the source and degradation degree of organic matter. Muramic acid is suitable to estimate the contribution of relatively fresh bacteria organic matter to particulate and sediment organic matter, but it is not suitable for applying in the dissolved organic matter because of its very low concentration leading from its rapid recycle. It is critical to enhance the research on the contribution of different microorganisms to amino sugars and differentiate the influence of organic matter source and degradation on amino sugars in marine environment. The research on the conversion and fate of amino sugars in marine environment is also needed.

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