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Acta Oceanologica Sinica 2008年第1期27卷 102-112页

作者： GE Changzi FANG Jianguang SONG Xiefa MAO Yuze ye naihao Department of Marine Fishery Ocean University of China Qingdao 266003 China Key Laboratory for Sustainable Utilization of Marine Fishery Resource Yellow Sea Fisheries Research Institute Qingdao266071 China

A muhispecies model for shellfish polycuhure in the Sanggou Bay in China used for large-scale long-line cultivation of the Chinese scallop Chlamysfarreri, the Pacific oyster Crassostrea gigas and the kelp Laminaria japonica is presented. The model includes key physical processes which are the transports of matter at the system boundary, and the main biological process that is the primary production and nutrients release from the bottom. By the model, the seasonal fluctuations of phytoplankton biomass and dissolved inorganic nitrogen（DIN） in 1994 are simulated. Furthermore, if the kelp culture scale is kept constant and the Chinese scallop and the Pacific oyster culture scales are adjusted, virtual shellfish farms are funded and responses of phytoplankton to the largescale shellfish culture are simulated. According to these simulated results, the room limitation, and the hypothesis that shellfish will not grow well if the phytoplankton biomass is less than 8.2 mg/m^3 , the expandable multiple of scallop culture k and that of oyster culture y are determined as k = -0.276 5y ＋4.690 5 and 0.133 3k ＋0.006 6y≤0.667 5, where, k （ or y） is equal to 1, the culture scale of scallop （ or oyster） is 8.8 x 109 individuals （or 66 ha, with a density of 59 ind./m^2 ）, and the kelp culture scale is 3 300 ha with a density of 12 ind./m^2.

关键词： multispecies model kelp Chinese scallop Pacific oyster carrying capacity

Cloning and sequence analysis of the partial sequence of the rbcL from Bryopsis hypnoides

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Acta Oceanologica Sinica 2005年第5期24卷 150-161页

作者： TIAN Chao WANG Guangce ye naihao ZHANG Baoyu FAN Xiaolei ZENG Chengkui Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao 266071 China

The partial sequence of the rbcL from Bryopsis hypnoides, including the sequences of the upstream, extron and partial intron, was amplified by PCR and their sequences were determined. With Spinacia oleracea as the outgroup, neighbor-joining method and maximum parsimony method were used respectively to build phylogenetic trees according to the rbcL exon sequence among 13 species that were the typical species of six phyla. Two kinds of trees showed clearly that there were two groups among those species, the green lineage and the non-green lineage. And the relationships of algae in the green lineage were similar in the two trees but those in the non-green lineage were not consistent. Analysis of codon preference indicated that the codon preference of the rbcL exon of Bryopsis hypnoides distinctly differed from that of the relevant sequence of photosynthetic bacteria.

关键词： rbcL Bryopsis hypnoides sequence analysis phylogenetic analysis codon preference

Glutathione S-Transferase(GST)Identified from Giant Kelp Macrocystis pyrifera Increases the Copper Tolerance of Synechococcus elongatus PCC 7942

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Journal of Ocean University of China 2023年第3期22卷 777-789页

作者： GU Zipeng REN Yudong LIANG Chengwei ZHANG Xiaowen GENG Yilin XU Dong ye naihao College of Marine Science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China Function Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China

The glutathione S-transferases gene family plays an important regulatory role in growth and development,and responses to environmental *** this study,six complete GST genes(Mp GST1,Mp GST2,Mp GST3,MpGST4,Mp GST5,and Mp GST6)were cloned from the gametophytes of brown alga Macrocystis *** bioinformatics analysis showed that these six genes encoded proteins with 202,216,288,201,205,and 201 aa,***,Mp GST3 differs from the other GST *** analysis suggested that MpGST3 belongs to the Ure2p type *** analysis suggested that the other GSTs from *** belong to the soluble GST family and form an independent branch with the GSTs found in the other macroalgae,suggesting that a new GST type was formed during macroalgal *** genes were upregulated in *** when 2.5 mg L^(-1)Cu ions were added to the *** GST genes were integrated into the genome of Synechococcus elongatus PCC 7942,and their functions were verified by measuring light absorbance,photosynthetic pigment content,and photosynthetic parameters of the transformed strains under 0.3 mg L^(-1)Cu ion *** results showed much higher levels of various parameters in the transformed strains than in the wild *** transformed strains(with the MpGST genes)showed significantly enhanced resistance to Cu ion stress,while the wild strain almost *** results of this study lay a theoretical foundation for further research on the Cu ion stress resistance function of GSTs in ***.

关键词： glutathione S-transferase genes gene cloning Cu ion stress Macrocystis pyrifera Synechococcus elongatus PCC 7942

Biomass,nutrient uptake and fatty acid composition of Chlamydomonas ***-L in response to different nitrogen sources

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Acta Oceanologica Sinica 2017年第2期36卷 105-110页

作者： AN Meiling WANG Yibin LIU Fangming QI Xiaoqing ZHENG Zhou ye naihao SUN Chengjun MIAO Jinlai The First Institute of Oceanography State Oceanic AdministrationQingdao 266061China Qingdao University Qingdao 266071China Qingdao National Laboratory for Marine Science and Technology Qingdao 266235China yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China

Nitrogen removal from media by microalgae provides the potential benefit of producing lipids for biodiesel and biomass. However, research is limited on algal growth and biomass under different nitrogen sources and provides little insight in terms of biofuel production. We studied the influences of nitrogen sources on cell growth and lipid accumulation of Chlamydomonas sp. ICE-L, one of a promising oil rich micro algal species. Chlamydomonas ***-L grown in NH_4 Cl medium had maximum growth rate. While the highest dry biomass of 0.28 g/L was obtained in media containing NH_4NO_3, the highest lipid content of 0.21 g/g was achieved under nitrogendeficiency condition with a dry biomass of 0.24 g/L. In terms of total polyunsaturated fatty acids（PUFAs）production, NH_4NO_3 and NH_4 Cl media performed better than nitrogen-deficiency and KNO_3 ***, NH_4NO_3 and NH_4 Cl media elucidated better results on C18：3 and C20：5 productions while KNO_3and-N conditions were better in C16：0, C18：1 and C18：2, comparatively.

关键词： Antarctic ice alga Chlamydomonas sp ICE-L nitrogen-deficiency condition nutrient uptake polyunsaturated fatty acids(PUFAs)

Characterization of a broad substrates specificity acyl-CoA:diacylglycerol acyltransferase 1 from the green tide alga Ulva prolifera

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Acta Oceanologica Sinica 2020年第10期39卷 42-49页

作者： Xiaowen Zhang Xiaoyuan Chi Yitao Wang Jian Zhang Yan Zhang Dong Xu Xiao Fan Chengwei Liang naihao ye yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China Function Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Shandong Peanut Research Institute Qingdao 266100China College of Marine Science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China

Triacylglycerols(triglycerides,TAGs)are the major carbon and energy storage forms in various organisms,and important components of cellular membranes and signaling molecules;they have essential functions in multiple physiological processes and stress ***-CoA:diacylglycerol acyltransferase(DGAT)catalyzes the final and only committed acylation step in the synthesis of TAGs in *** present work identified and isolated a novel gene,UpDGAT1,from the green tide alga Ulva *** activity of UpDGAT1 was confirmed by heterologous expression in a Saccharomyces cerevisiae TAG-deficient quadruple *** of thin-layer chromatography and BODIPY staining indicated that UpDGAT1 was able to restore TAG synthesis and lipid body formation in the *** analysis of yeast cells revealed that UpDGAT1 showed broad substrate specificity,accepting saturated as well as mono-and polyunsaturated acyl-CoAs as *** salinity and high temperature stresses increased UpDGAT1 expression and TAG accumulation in *** present study provides clues to the functions of UpDGAT1 in TAG accumulation in,and stress adaptation of,***.

关键词： Ulva prolifera diacylglycerol acyltransferase triacylglycerol stress

Identification of genes under positive selection reveals evolutionary adaptation of Ulva mutabilis

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Acta Oceanologica Sinica 2020年第10期39卷 35-41页

作者： Jian Zhang Xiaowen Zhang Wentao Han Xiao Fan Yitao Wang Dong Xu Yan Zhang Jian Ma Chengwei Liang naihao ye College of Marine Science and Biological Engineering Qingdao University of Science and TechnologyQingdao 266042China yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China Function Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

Ulvophytes are attractive model systems for understanding the evolution of growth,development,and environmental stress *** are untapped resources for food,fuel,and high-value *** rapid and abundant growth of Ulva species makes them key contributors to coastal biogeochemical cycles,which can cause significant environmental problems in the form of green tides and *** now,the Ulva mutabilis genome is the only Ulva genome to have been *** obtain further insights into the evolutionary forces driving divergence in Ulva species,we analyzed 3905 single copy ortholog family from ***,Chlamydomonas reinhardtii and Volvox carteri to identify genes under positive selection(GUPS)in *** detected 63 orthologs in *** that were considered to be under positive *** analyses revealed that several adaptive modifications in photosynthesis,amino acid and protein synthesis,signal transduction and stress-related processes might explain why this alga has evolved the ability to grow very rapidly and cope with the variable coastal ecosystem environments.

关键词： green algae Ulva mutabilis positive selection adaptive evolution

Gene duplication and functional divergence of new genes contributed to the polar acclimation of Antarctic green algae

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Marine Life Science & Technology 2023年第4期5卷 511-524页

作者： Xiaowen Zhang Wentao Han Xiao Fan Yitao Wang Dong Xu Ke Sun Wei Wang Yan Zhang Jian Ma naihao ye State Key Laboratory of Mariculture Biobreeding and Sustainable Goods Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Laboratory for Marine Fisheries Science and Food Production Processes Laoshan LaboratoryQingdao 266200China

Psychrophilic microalgae successfully survive in the extreme and highly variable polar ecosystems,which represent the energy base of most food webs and play a fundamental role in nutrient *** success of microalgae is rooted in their adaptive *** how they have evolved to thrive in extreme polar environments will help us better understand the origin of life in polar *** isolated a psychrophilic unicellular green alga,Microglena ***,from Antarctic sea ice which has a huge ***,we predicted that gene replication may play an important role in its polar adaptive *** found that its protein-coding gene number significantly increased and the duplication time was dated between 37 and 48 million years ago,which is consistent with the formation of the circumpolar Southern *** duplicated paralogous genes were enriched in pathways related to photosynthesis,DNA repair,and fatty acid ***,there were a total of 657 Microglena-specific families,including collagen-like *** divergence in the expression patterns of the duplicated and species-specific genes reflects sub-and neo-functionalization during stress ***,key findings from this study provide new information on how gene duplication and their functional novelty contributed to polar algae adaptation to the highly variable polar environmental conditions.

关键词： Psychrophilic microalgae Adaptive evolution Gene replication

Activities of principal photosynthetic enzymes in green macroalga Ulva linza:functional implication of C_4 pathway in CO_2 assimilation

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Science China(Life Sciences) 2013年第7期56卷 571-580页

作者： XU JianFang ZHANG XiaoWen ye naihao ZHENG Zhou MOU ShanLi DONG MeiTao XU Dong MIAO JinLai Key Laboratory of Marine Bioactive Substance The First Institute of OceanographyState Oceanic Administration yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao Agricultural University

The green-tide-forming macroalga Ulva linza was profiled by transcriptome sequencing to ascertain whether the alga carries both C3 and C4 photosynthesis *** key enzymes involved in C4 metabolism including pyruvate orthophosphate dikinase(PPDK),phosphoenolpyruvate carboxylase(PEPC),and phosphoenolpyruvate carboxykinase(PCK) were *** measured under normal and different stress conditions,expression of rbcL was higher under normal conditions and lower under the adverse conditions,whereas that of PPDK was higher under some adverse conditions,namely desiccation,high salinity,and low *** ribulose-1,5-biphosphate carboxylase(RuBPCase) and PPDK were found to play a role in carbon fixation,with significantly higher PPDK activity across the stress *** results suggest that elevated PPDK activity alters carbon metabolism in *** leading to partial operation of the C4 carbon metabolism,a pathway that,under stress conditions,probably contributes to the hardy character of *** and thus to its wide distribution.

关键词： C4 pathway PPDK RuBPCase Ulva linza

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Ulva prolifera green-tide outbreaks and their environmental impact in the yellow Sea, China

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National Science Review 2019年第4期6卷 825-838页

作者： Yongyu Zhang Peimin He Hongmei Li Gang Li Jihua Liu Fanglue Jiao Jianheng Zhang Yuanzi Huo Xiaoyong Shi Rongguo Su naihao ye Dongyan Liu Rencheng Yu Zongling Wang Mingjiang Zhou Nianzhi Jiao Key Laboratory of Biofuels Shandong Provincial Key Laboratory of Energy GeneticsQingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Institute of Marine Microbes and Ecospheres State Key Laboratory of Marine Environmental Science Xiamen University College of Marine Ecology and Environment Shanghai Ocean University Institute of Marine Science and Technology Shandong University Department of Oceanography Dalhousie University National Marine Hazard Mitigation Service State Oceanic Administration College of Chemistry and Chemical Engineering Ocean University of China yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences State Key Laboratory of Estuarine and Coastal Research East China Normal University Key Laboratory of Marine Ecology and Environmental Sciences Institute of Oceanology Chinese Academy of Sciences Key Laboratory of Science and Engineering for Marine Ecology and Environment the First Institute of OceanographyState Oceanic Administration

The Ulva prolifera green tides in the yellow Sea, China, which have been occurring since 2007, are a serious environmental problem attracting worldwide attention. Despite extensive research, the outbreak mechanisms have not been fully understood. Comprehensive analysis of anthropogenic and natural biotic and abiotic factors reveals that human activities, regional physicochemical conditions and algal physiological characteristics as well as ocean warming and biological interactions(with microorganism or other macroalgae) are closely related to the occurrence of green tides. Dynamics of these factors and their interactions could explain why green tides suddenly occurred in 2007 and decreased abruptly in ***, the consequence of green tides is serious. The decay of macroalgal biomass could result in hypoxia and acidification, possibly induce red tide and even have a long-lasting impact on coastal carbon cycles and the ecosystem. Accordingly, corresponding countermeasures have been proposed in our study for future reference in ecosystem management strategies and sustainable development policy.

关键词： green tides Ulva prolifera outbreak mechanisms eco-environmental effects yellow Sea

Biodiversity-based development and evolution:the emerging research systems in model and non-model organisms

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Science China(Life Sciences) 2021年第8期64卷 1236-1280页

作者： Long Zhao Feng Gao Shan Gao Yujun Liang Hongan Long Zhiyi Lv Ying Su naihao ye Liusuo Zhang Chengtian Zhao Xiaoyu Wang Weibo Song Shicui Zhang Bo Dong Institute of Evolution and Marine Biodiversity(IEMB) Ocean University of ChinaQingdao 266003China Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China College of Fisheries Ocean University of ChinaQingdao 266003China College of Marine Life Sciences Ocean University of ChinaQingdao 266003China yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesQingdao 266071China CAS Key Laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China

Evolutionary developmental biology,or Evo-Devo for short,has become an established field that,broadly speaking,seeks to understand how changes in development drive major transitions and innovation in organismal *** does so via integrating the principles and methods of many subdisciplines of *** we have gained unprecedented knowledge from the studies on model organisms in the past decades,many fundamental and crucially essential processes remain a *** the tremendous biodiversity of our planet,the current model organisms seem insufficient for us to understand the evolutionary and physiological processes of life and its adaptation to exterior *** currently increasing genomic data and the recently available gene-editing tools make it possible to extend our studies to non-model *** this review,we review the recent work on the regulatory signaling of developmental and regeneration processes,environmental adaptation,and evolutionary mechanisms using both the existing model animals such as zebrafish and Drosophila,and the emerging nonstandard model organisms including amphioxus,ascidian,ciliates,single-celled phytoplankton,and marine *** addition,the challenging questions and new directions in these systems are outlined as well.

关键词： Biodiversity evolutionary planet