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Study of microbial mechanisms of N2O emission in mangrove ecosystems

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Yang XiaoruDate: 2011.01-2013.12In this project, we select mangrove ecosystem as the research area of this study. The microbial mechanism of the N2O emission in the mangrove ecosystem will be studied by combining in situ field sampling with mesocosm experiments. The objects of this project are : 1) to meas...

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Mechanism of alien invasive plants in coastal wetland ecosystem: synergistic effects of plant-microbes

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Yu ShenDate: 2011.01-2013.12We use Spartina alterniflora as the model plant to demonstrate plant-soil microbes feedback as a pathway for successful invasion of alien plant species in coastal wetland. Double isotope labeling technique(C-13 and N-15) will be applied to explore C and N flows between the plant...

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Arsenic methylation by algae and its molecular mechanisms in paddy soils

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Zhu YongguanDate: 2011.01-2013.12It is well known that many rice and its paddy fields were significantly contaminated by arsenic. Arsenic could be transfomated by microorganisms (microalgae) in the paddy fields from arsenate to arsenite, and then methylated until volatile organic As. According to this func...

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Key biogeochemical processes in typical paddy soils and their environmental functions

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Zhao JinpingDate: 2011.01-2013.12The objective of this study is to characterize the distribution and sources of macromolecule organic matter in PM10. A comprehensive chemical procedure is established to fractionate and quantitative isolation of macromolecules organic matter in inhalable particulates (PM10)...

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Studies on the interactions between marine Roseobacter and their viruses

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Zhang YongyuDate: 2011.01-2013.12As the most abundant organisms in marine ecosystem, viruses mediate microbial population size, community structure and diversity; promote gene transfer between different bacteria and their coevolution; and play important roles in marine biogeochemical cycles. Roseobacter is...

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Study of metabolic process of three diasteroisomeric hexabromocyclododecanes in fish

Sponsor: National Nature Science Foundation of China (NNSFC)Headed by Zhang XianDate: 2011.01-2013.12Hexabromocyclododecanes (HBCDs), as an additive brominated flame retardant (BFR), are the third most produced BFR and HBCDs have been detected in practically all environmental media.The potential risk of HBCDs in environment have been paid attention by scientists.Recent studi...

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