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Science China Earth Sciences 2023年第8期66卷 1906-1908页

作者： nianzhi jiao Fujian Key Laboratory of Marine Carbon Sequestration Carbon Neutral Innovation Research CenterCollege of Ocean and Earth Sciences and State Key Laboratory of Marine Environmental ScienceXiamen UniversityXiamen 361005China

Coral reefs are underwater ecosystems characterized by reefbuilding *** reefs are complex three-dimensional structures formed by colonies of coral polyps held together by calcium carbonate,and play an important role in the global carbon cycle(Kinsey and Hopley,1991).Although coral reefs cover only approximately 0.5% of the global sea floor,they serve various ecological functions,such as ecological resource restoration,environmental regulation。

关键词： coral carbonate Coral

Microbial carbon pump shapes chemical signatures of refractory dissolved organic carbon in ocean water column

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Science China Earth Sciences 2024年第7期67卷 2408-2410页

作者： Ruanhong CAI nianzhi jiao Fujian Key Laboratory of Marine Carbon Sequestration Xiamen UniversityXiamen 361102China Department of Ocean Science The Hong Kong Universityof Science and TechnologyHong Kong SAR 999077China Carbon Neutral Innovation Research Center Xiamen UniversityXiamen 361102China

The global ocean sequesters a great amount of dissolved organic carbon(DOC),which is mainly originated from indigenous microbial activities(such as photosynthesis and chemoautotrophy)in the water column,as well as various exogenous sources such as riverine input,sediment mobilization,aerosol dissolution,hydrothermal vent effusion,and others(Cai and jiao,2023).

关键词： ocean originated aerosol

Ecological studies on Prochlorococcus in China seas

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Chinese Science Bulletin 2002年第15期47卷 1243-1250页

作者： nianzhi jiao Yanhui Yang Xiamen Univ Ctr Marine Environm Sci Minist Educ Key Lab Marine Environm Sci Xiamen 361005 Peoples R China

Prochlorococcus, a tiny oxygenic photosynthetic picoplankton with unique pigment composition, has been found to be ubiquitous and abundant in the world oceans, and has been recognized to be closely related to living resources and environmental issues. It has attracted the interest of marine biologists since its discovery, and field data on it over global oceans have accumulated rapidly in the past 10 years. In China, we have studied Prochlorococcus for 8 years, achieving a basic ecological understanding. The presence of Prochlorococcus in China seas, marginal seas of the west Pacific, was confirmed, and its distribution patterns were also brought to light. Prochlorococcus is very abundant in the South China Sea and the offshore regions of the East China Sea. It is seasonally present in the southeast part of the Yellow Sea and absent in the Bohai Sea. Temporal and spatial variations of the abundance of Prochlorococcus and their affecting factors, physiological and ecological characteristics of

关键词： Prochlorococcus divinyl-chlorophyll picoplankton ecology China seas.

Ocean-based climate actions recommended by academicians from Europe and China

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Science China Earth Sciences 2022年第8期65卷 1612-1614页

作者： Jean-Pierre GATTUSO nianzhi jiao Laboratoire d’Océanographie de Villefranche CNRS-Sorbonne University-IddriParis75006France Carbon Neutral Innovation Reaserch Center Xiamen UniversityXiamen361005China

Ocean acidification,deoxygenation and sea level Rise impacted by global warming intertwined with anthropogenic activities have resulted in tremendous ecological losses at species,diversity and ecosystem levels,leading... 详细信息

关键词： warming climate consequences

Microbes mediated comprehensive carbon sequestration for negative emissions in the ocean

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National Science Review 2020年第12期7卷 1858-1860页

作者： nianzhi jiao Jihua Liu Fanglue jiao Quanrui Chen Xiaoxue Wang State Key Laboratory of Marine Environmental Science and College of Ocean and Earth Sciences Xiamen University Joint Lab for Ocean Research and Education (LORE) of Dalhousie University Canadaand Shandong University and Xiamen University Institute of Marine Science and Technology Shandong University South China Sea Institute of Oceanology Chinese Academy of Sciences

The crisis of the COVID-19 pandemic is warning of a more profound crisis—climate *** the Industrial Revolution,anthropogenic activities,such as the burning of fossil fuels and deforestation,have led to a significant increase in atmospheric CO;concentration,exacerbating climate change and causing ecosystem imbalances,abrupt ecosystem successions and serious ecological disasters,which will finally threaten the sustainable development of human society.

关键词：

Prochlorococcus viruses—From biodiversity to biogeochemical cycles

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Science China Earth Sciences 2018年第12期61卷 1728-1736页

作者： Xilin XIAO Qinglu ZENG Rui ZHANG nianzhi jiao State Key Laboratory of Marine Environmental Science College of Ocean & Earth Sciences Institute of Marine Microbes and EcospheresXiamen University Department of Ocean Science and Division of Life Science Hong Kong University of Science and Technology

As the dominant primary producer in oligotrophic oceans, the unicellular picocyanobacterium Prochlorococcus is the smallest and most abundant photosynthetic phytoplankton in the world and plays an important role in marine carbon *** that infect Prochlorococcus influence the growth, carbon fixation, diversity, evolution, and environmental adaptation of their hosts. Here, we review studies on the isolation, genomics, and phylogenetic diversity of Prochlorococcus viruses and their interactions with Prochlorococcus. We also review the potential effects of Prochlorococcus viruses on biogeochemical cycling in the ocean.

关键词： Prochlorococcus viruses Diversity Genomics Biogeochemical significance

Blue carbon on the rise:challenges and opportunities

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National Science Review 2018年第4期5卷 464-468页

作者： nianzhi jiao Hong Wang Guanhua Xu Salvatore Aricò State Key Laboratory of Marine Environmental Science Xiamen University State Ocean Administration Ministry of Science and Technology China Intergovernmental Oceanographic Commission of United Nations Educational Scientific and Cultural Organization (UNESCO)

BLUE CARBON ON THE RISE Climate change is a global concern that requires urgent *** a signatory to the Paris Agreement,China has committed to have its greenhouse gas emission reach a peak by the year 2030,which means ... 详细信息

关键词： Blue carbon on the rise:challenges and opportunities

Environmental control of growth and BChl a expression in an aerobic anoxygenic phototrophic bacterium, Erythrobacter longus (DSMZ6997)

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Acta Oceanologica Sinica 2006年第6期25卷 138-144页

作者： LI Qiang jiao nianzhi PENG Zaiqing State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China

anoxygenic phototrophic bacteria （AAPB）, which form a unique functional group of heterotrophic bacteria, have the abilit,to utilize light energy. The impact of carbon source and light intensity on the growth and bacteriochlorophyn a （ BChl a） expression of a typical strain of AAPB, Erythrobacter longus strain DSMZ6997 was examined during batch culture and continuous culture. The results showed that the expression of BChl a in DSMZ6997 was regulated by both carbon-source and light conditions, and was stimulated by low availability of carbon but inhibited by light to a certain extent at 300 lx and completely at 1 500 lx. In contrast, cell abundance, and even cell size of this strain, was substantially enhanced under light/dark cycle cultivation conditions over dark conditions, indicating the promotion of growth by light. These results led to the conclusion that utilization of light through BChl a helps AAPB to survive under carbon stress, while light at high intensity is harmful to the synthesis of BChl a in AAPB.

关键词： aerobic anoxygenic phototrophic bacteria ( AAPB) bacteriochlarophyll a ( BChl a) continuous culture

Distribution of Protists in the Deep South China Sea Revealed by High-Throughput Sequencing

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Journal of Ocean University of China 2020年第1期19卷 161-170页

作者： LI Xinran WARREN Alan jiao nianzhi XU Dapeng State Key Laboratory of Marine Environmental Science Institute of Marine Microbes and EcospheresCollege of Ocean and Earth SciencesXiamen UniversityXiamen 361102China Department of Life Sciences Natural History MuseumLondonSW75BDUK

Protists(microbial eukaryotes)are indispensable members of the marine microbial food *** recent years,organisms living in the deep sea(>1000 m water depth)have increasingly become the focus of research;however,studies on protistan assemblages are relatively scarce compared with their prokaryotic *** the present study,high-throughput sequencing of the hypervariable V9 region of the 18S rRNA gene was used to explore the community composition of protists in bathypelagic waters of the South China *** on the analysis of the alpha and beta diversities of 14 samples,we discovered:1、members belonging to Rhizaria,Alveolata,and Excavata were the dominant groups in terms of both relative sequence abundance and operational taxonomic unit(OTU)richness in all samples,although their relative contributions differed among different samples;2、cluster analysis showed that the distribution of protistan assemblages was related neither to the sampling location nor to the water depth,and other environmental factors might have caused the differences among the communities;3、phototrophs,including members of the Bacillariophyta,Bolidophyceae,Dictyochophyceae,Prasinophyceae,and Prymnesiophyceae,were detected in all samples,which indicated their contributions to the downward transportation via the biological pump and the potential presence of phagotrophy of these phototrophic cells in the deep ocean.

关键词： bathypelagic water diversity microbial eukaryotes SSU rRNA gene

Research advances on ecotype and sub-ecotype differentiation of Prochlorococcus and its environmental adaptability

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Science China Earth Sciences 2020年第11期63卷 1691-1700页

作者： Wei YAN Xuejin FENG Wei ZHANG Rui ZHANG nianzhi jiao College of Marine Science and Technology China University of GeosciencesWuhan 430074China State Key Laboratory of Marine Environmental Science Fujian Key Laboratory of Marine Carbon SequestrationCollege of Ocean and Earth SciencesXiamen UniversityXiamen 361102China

Prochlorococcus,a group of marine cyanobacteria,is the most abundant and smallest oxygen-producing photosynthetic *** is mainly distributed in the euphotic zone of tropical and subtropical oceans and is a key participant in the marine biogeochemical *** has evolved continuously to adapt to the marine environment,and can be considered a recent evolutionary form of cyanobacteria,one of the most ancient life *** diverse ecotypes and subecotypes of Prochlorococcus increase its genomic diversity and environmental adaptability,allowing Prochlorococcus to become a dominant species in its *** we review the ecotype classification and distribution,ecotype and subecotype differentiation,and environmental adaptability of *** also evaluate the role and significance of ecotype and sub-ecotype differentiation of Prochlorococcus,and discuss future research directions on this basis.

关键词： Prochlorococcus Ecotype Sub-ecotype Environmental adaptation