Cellulose based responsive materials from agricultural and forestry wastes and the application in environmental pollution control
In order to speed up the structural reform of the ecological civilization and the construction of a beautiful China, which is comprehensively elaborated by the green development and the principle of ecological protection, the eco-environmental material team is committed to the research of the high value utilization of the bio-based low value materials. The preparation technology and technology of bio-based responsive materials were proposed, and the cellulose-based environment-friendly intelligent material was successfully applied to improve environmental pollution.
Researchers found a new type of microbial electrical network
Recently, researchers from Institute of Microbiology, Guangdong Academy of Sciences, Aarhus University and several other universities found a novel microbial electrical network. The work was published in Nature Communications with a title of “Long-distance electron transfer in a filamentous Gram-positive bacterium”. The first author is Prof. Yonggang Yang from Institute of Microbiology, Guangdong Academy of Sciences, the corresponding authors are Prof. Meiying Xu from Institute of Microbiology, Guangdong Academy of Sciences and Prof. Mingdong Dong from Aarhus University.
Sino-Dan international joint research team discovered a new mechanism for cable bacteria-driven biogeochemical cycling in sediments
Recently, the Institute of Microbiology, Guangdong Academy of Science, in collaboration with the School of Environmental Science and Engineering, Sun Yat-sen University, and the Center for Electromicrobiology of Aarhus University (Denmark), have made a new discovery in the study of electroactive microorganism-driven element cycling in sediments namely Electric Oxygen Extension (EOE). The EOE model proposes that overlaying water oxygen fluctuation affects distant anoxic sediment biogeochemistry mediated by cable bacteria, a recently discovered centimeter-long electro-conductive microbe. This study was published on the ISME journal entitled “Cable bacteria extend the impacts of elevated dissolved oxygen into anoxic sediments” on Jan. 21st, 2021 (https://doi.org/10.1038/s41396-020-00869-8).
New findings about the sea-level change, coastal environment change and delta sedimentary evolution of the southeast China have been released
Recently, the research team led by Prof. Huang Guangqing from Guangzhou Institute of geography, Guangdong Academy of Sciences and Prof. Zong Yongqiang from University of Hong Kong published a series of research findings in the journals of Quaternary Science Reviews, Earth Surface Processes and Landforms and Marine Geology. These findings include the Holocene relative sea-level change in Hangzhou Bay, the sedimentary pattern of the Pearl River Delta and the coastal event deposition of the south China：
ES&T: Extracellular Electron Shuttling Mediated by Soluble?c-Type Cytochromes Produced by?Shewanella oneidensis?MR-1
Dissimilatory metal-reducing bacteria can oxidize intracellular organic compounds coupled with transferring electrons to terminal electron acceptors through extracellular electron transfer. These processes play a key role in degradation of organic pollutants and migration/transformation of heavy metals. Three pathways of extracellular electron transfer by dissimilatory metal reducing bacteria have been well recognized, including direct contact between the outer membrane and electron acceptors, electron shuttling, and nanowire-mediated electron transfer. While it is well known that Shewanella species interacts with electron acceptors primarily via flavins as soluble electron shuttles, it is unclear whether there are other processes of transferring electrons to the terminal electron acceptors.