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Protist Interactions and Seasonal Dynamics in the Coast of Yantai, Northern Yellow Sea of China as Revealed by Metabarcoding

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Journal of Ocean University of China 2020年第4期19卷 961-974页

作者： FU Yingjun ZHENG Pengfei ZHANG Xiaoli ZHANG Qianqian ji daode School of Ocean Yantai UniversityYantai 264003China Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

Facilitated by the high-throughput sequencing(HTS)technique,the importance of protists to aquatic systems has been widely acknowledged in the last ***,information of protistan biotic interactions and seasonal dynamics is much less known in the coast ecosystem with intensive anthropic *** this study,year-round changes of protist community composition and diversity in the coastal water of Yantai,a city along the northern Yellow Sea in China,were investigated using HTS for the V4 region of 18S *** interactions among protist groups were also analyzed using the co-occurrence *** analyses showed that Alveolata,Chlorophyta,and Stramenopiles are the most dominant phytoplanktonic protists in the investigated coastal *** community composition displayed strong seasonal *** abundant families Dino-Group-I-Clade-1 and Ulotrichales_X had higher proportions in spring and summer,while Bathycoccaceae exhibited higher ratios in autumn and *** diversities(Shannon and Simpson)were the highest in autumn and the lowest in spring(ANOVA test,P<0.05).Nutrients(SiO42−,PO43−),total organic carbon(TOC),and pH seemed to drive the variation of alpha diversity,while temperature,PO43−and TON were the most significant factors influencing the whole protist ***-variance network analyses reveal frequent co-occurrence events among ciliates,chlorophytes and dinoflagellate,suggesting biotic interactions have been induced by predation,parasitism and mixotrophy.

关键词： coastal zone biotic interaction high-throughput sequencing northern Yellow Sea protist diversity seasonal dynamic

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Salinity Acclimation Induces Reduced Energy Metabolism,Osmotic Pressure Regulation and Transcriptional Reprogramming in Hypotrichida Ciliate Gastrostyla setifera

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Journal of Ocean University of China 2024年第2期23卷 539-549页

作者： ji Xin BI Luping ZOU Songbao LI Wenlu ji daode ZHANG Qianqian School of Ocean Yantai UniversityYantai 264005China Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Zhejiang Institute of Freshwater Fisheries Huzhou 313001China Muping Coastal Environment Research Station Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264117China

Coastal and estuarine protists are frequently exposed to salinity *** the tolerance and stress responses of microalgae to salinity have been extensively studied,there have been scarce studies on the physiological response of heterotrophic protists to salinity *** this study,we investigated the physiological response of the heterotrophic ciliate Gastrostyla setifera to a salinity of 3,via a transcriptomic *** first transcriptome of genus Gastrostyla was obtained utilizing a group of manually isolated ciliate individuals(cells)and RNA-seq *** completeness of the transcriptome was *** expressed gene(DEG)analysis was performed among the transcriptomes of *** acclimated in saline water(salinity 3)and those cultured in fresh *** results demonstrated a significant alternation in gene transcription,in which the ciliate exhibits a transcripttomic acclimation in responding salinity *** up-regulated DEGs were enriched in the pathways of cytoskeleton proteins,membrane trafficking,protein kinases and protein *** may represent enhanced functions of ion transport,stress response and cell *** involved in energy metabolism and biosynthesis were markedly down-regulated,reflecting decreased cell ***,we detected significantly down-regulated genes involved in several pathways of amino acid catabolism,which may lead to accumulation of amino acids in the ciliate *** acid could act as compatible solutes in the cytoplasm to maintain the osmotic balance in saline ***,this work is an initial exploration to the molecular basis of the heterotrophic protist responding to salinity *** result sheds light on the mechanisms of enhancement of cell protection,reduction of cell activity,and osmotic pressure regulation in ciliates acclimated to salinity.

关键词： salinity stress heterotrophic protist ciliate Gastrostyla setifera transcriptome differentially expressed gene

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Effect of Mariculture on Planktonic Protist:A Case Study in a Marine Ranch of Northern Yellow Sea,China

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Journal of Ocean University of China 2024年第6期23卷 1630-1644页

作者： ZHAO Chenchen ZHANG Xiaoxin ZHANG Wenjing XU Ning ZHANG Xiaoli ZHAO jianmin ZHANG Qianqian ji daode School of Ocean Yantai UniversityYantai 264003China Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Muping Coastal Environment Research Station Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Laboratory for Marine Biology and Biotechnology Qingdao Marine Science and Technology CenterQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

Mariculture exerts a direct influence on planktonic eukaryotic microorganisms *** studies have focused on phytoplankton,while the heterotrophic and parasitic protistan groups are ***,in Muping Marine Ranch(MR)which is along the littoral zone of northern Yellow Sea of China,environmental DNA methods were employed to investigate the diversity and seasonal dynamics of near shore planktonic protists in response to *** an integrated analysis of functional groups and a comparison to adjacent sea areas,we found a dominance of harmful algae blooms(HAB)species nearshore MR,and a significant reduction in the diversity of planktonic protists including photosynthetic,heterotrophic and parasitic *** nutrient and low salinity were suggested to drive the dominance of HAB species nearshore MR,which in return might inhibit predators,saprophytes and algal *** investigations revealed an Olisthodiscus luteus outbreak in spring,as well as significant seasonal variations in the planktonic protist community,which might be caused by the changes of *** offshore hypoxia reduced the abundance of phytoplankton but increased mixotrophs and animal parasites of the protistan community nearshore *** study highlights the influence of mariculture on the overall community function of planktonic protists,and is helpful to assess the mariculture's impact on water health.

关键词： mariculture protist hypoxia meta-barcoding harmful algae blooms functional group

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不同浓度海生根鞭毛虫(Oxyrrhis marina)对环小两栖猛水蚤Amphiascopsis cinctus(Claus,1866)发育时间、存活率、繁殖的影响

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生态科学 2023年第5期42卷 12-18页

作者：尹洁慧季道德刘炜炜烟台大学海洋学院烟台264005 中国科学院南海海洋研究所热带海洋生物资源与生态重点实验室广州510301

关于室内猛水蚤的培养,大部分采用微藻加饲料培养模式,但微藻培养成本高,加饲料投喂破坏水体环境。文章首次利用活体海生根鞭毛虫(Oxyrrhis marina)喂养环小两栖猛水蚤(Amphiascopsis cinctus),通过投喂海生根鞭毛虫,环小两栖猛水蚤可... 详细信息

关于室内猛水蚤的培养,大部分采用微藻加饲料培养模式,但微藻培养成本高,加饲料投喂破坏水体环境。文章首次利用活体海生根鞭毛虫(Oxyrrhis marina)喂养环小两栖猛水蚤(Amphiascopsis cinctus),通过投喂海生根鞭毛虫,环小两栖猛水蚤可正常生长繁殖,且不同浓度的海生根鞭毛虫,对环小两栖猛水蚤发育时间、存活率以及繁殖的影响不同。在***浓度分别为200 ind·mL^(–1)、800 ind·mL^(–1)、3200 ind·mL^(–1)、>104 ind·mL^(–1)时,环小两栖猛水蚤发育时间随***浓度的增加而减少,从无节幼体至桡足幼体阶段,发育时间从(16.30±0.82)d减少到(9.06±0.87)d;桡足幼体至成体阶段,发育时间从(15.94±0.63)d减少到(10.14±1.07)d;小两栖猛水蚤的存活率随着饵料浓度的增加而增加,无节幼体至桡足幼体阶段,存活率由36.72%提高到70.25%;桡足幼体至成体阶段,存活率由70.88%提高到85.62%,但最高存活率出现在次高浓度(3200 ind·mL^(–1))组中。在繁殖方面,环小两栖猛水蚤的挂卵量和孵化率随着***浓度的提高而增加(7.86个·只–1—10.67个·只–1;50.83%—85.30%),孵化时间随着***浓度的增加而减少(8.67 d—5.12 d)。由此可见,高浓度的饵料可以缩短小两栖猛水蚤的发育时间,增加其繁殖效率,但当其发育至桡足幼体后,过高的饵料浓度反而降低了存活率,其原因还有待于进一步研究。

关键词：小两栖猛水蚤海生根鞭毛虫发育时间存活率繁殖

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阿尔泰山前荒漠两种沙蜥体况指数特征及其与生态因子的关系

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生物多样性 2020年第4期28卷 412-421页

作者：陶夏秋蒋志刚吉晟男初红军李娜杨道德李春旺中国科学院动物研究所动物生态与保护生物学重点实验室北京100101 南京师范大学生命科学学院江苏省生物多样性与生物技术重点实验室南京210023 中南林业科技大学野生动植物保护研究所长沙410004 中国科学院大学北京100049 中国环境科学研究院生物多样性研究中心北京100012 新疆卡拉麦里山有蹄类自然保护区阿勒泰管理站新疆阿勒泰836500

为明确奇台沙蜥(Phrynocephalus grumgrzimailoi)和旱地沙蜥(***)体况指数的年龄性别特征,及其与海拔、年均温、年降水量、平均日较差之间的关系,我们测量了阿勒泰地区84只奇台沙蜥与176只旱地沙蜥的体况数据,用log体重/log头体长表示... 详细信息

为明确奇台沙蜥(Phrynocephalus grumgrzimailoi)和旱地沙蜥(***)体况指数的年龄性别特征,及其与海拔、年均温、年降水量、平均日较差之间的关系,我们测量了阿勒泰地区84只奇台沙蜥与176只旱地沙蜥的体况数据,用log体重/log头体长表示体况指数。结果显示:(1)旱地沙蜥与奇台沙蜥间体况指数差异显著。(2)旱地沙蜥体况指数雌雄两性差异不显著,奇台沙蜥体况指数雌雄两性差异显著。(3)两种蜥蜴成体与亚成体间体况指数均差异明显。(4)以月份为单位,奇台沙蜥体况指数月份差异明显,旱地沙蜥体况指数月份差异不明显。(5)年均温对奇台沙蜥体况指数有重要影响,而年降水量为补充因子,主要通过与其他生态因子组合发挥作用,海拔对旱地沙蜥体况指数有影响。这些结果表明两种沙蜥对不同环境因子的反应不同,在不同环境的适应度也不同。

关键词：阿勒泰地区沙蜥属体况指数生态因子

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基督教文学在中国近代时新小说中的转生——以李景山的《道德除害传》(1895)为例

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圣经文学研究 2018年第2期 247-274页

作者：姬艳芳河南财经政法大学外国语学院

傅兰雅(John Fryer,1839-1928)在《申报》《教务杂志》《万国公报》等刊物上发起“求著时新小说”有奖征文活动,共收到逾1 50位应征者的1 62篇手稿。其中,李景山的《道德除害传》在创作形式上融会了中国传统章回小说的创作体例,采取了... 详细信息

傅兰雅(John Fryer,1839-1928)在《申报》《教务杂志》《万国公报》等刊物上发起“求著时新小说”有奖征文活动,共收到逾1 50位应征者的1 62篇手稿。其中,李景山的《道德除害传》在创作形式上融会了中国传统章回小说的创作体例,采取了圣经的U型叙事结构,在叙事内容上进行多元宗教的表述,贯通了基督教与儒道释的教义。在人物形象塑造方面,它综合了中西宗教文学中的“原型”形象,为晚清新小说的创作形式及内容注入了新的元素。本文以该小说为例,重点分析它在内容和形式上与中西文学的关系,以及它所体现的现代谴责小说及神魔小说的特征,以管窥傅兰雅征文小说所体现的中西宗教文学的交流互渗,及其对中国近代新小说的文学影响。

关键词：基督教文学时新小说李景山《道德除害传》

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