检索结果-南通市图书馆

Distinct root system acclimation patterns of seagrass zostera japonica in sediments of different trophic status:a research by X-ray computed tomography

引用

Journal of Oceanology and Limnology 2021年第6期39卷 2267-2280页

作者： Xiaoyue SONG Yi ZHOU Jiangning ZENG Lu SHOU Xiaomei ZHANG Shidong YUE Wei GAO Weihua FENG Zhifu WANG Ping DU Key Laboratory of Marine Ecosystem Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China College of Tropical Crops Hainan UniversityHaikou 570228China Key Laboratory of Engineering Oceanography Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China

Conspecific seagrass living in differing environments may develop different root system acclimation *** applied X-ray computed tomography(CT)for imaging and quantifying roots systems of zostera japonica collected from typical oligotrophic and eutrophic sediments in two coastal sites of northern China,and determined sediment physicochemical properties that might influence root system morphology,density,and *** trophic status of sediments had little influence on the *** root length,and diameters of root and ***,*** in oligotrophic sediment developed the root system with longer rhizome node,deeper rhizome distribution,and larger allocation to below-ground tissues in order to acquire more nutrients and relieve the N *** the lower root and rhizome densities of *** in eutrophic sediment were mainly caused by fewer shoots and shorter longevity,which was resulted from the more serious sulfide *** results systematically revealed the effect of sediment trophic status on the phenotypic plasticity,quantity,and distribution of *** root system,and demonstrated the feasibly of X-ray CT in seagrass root system research.

关键词： zostera japonica root system acclimation pattern sediment trophic status X-ray computed tomography

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

High genetic diversity and strong differentiation in dramatically fluctuating populations of zostera japonica(zosteraceae):implication for conservation

引用

Journal of Plant Ecology 2018年第5期11卷 789-797页

作者： Kai Jiang Po-Keung Eric Tsang Na-Na Xu Xiao-Yong Chen School of Ecological and Environmental Sciences Shanghai Key Lab of Urban Ecological Processes and Eco-RestorationEast China Normal UniversityShanghai 200241China Shanghai Chenshan Plant Science Research Center Chinese Academy of SciencesChenshan Botanical GardenShanghai 201602China Department of Science and Environmental Studies The Education University of Hong KongHong KongChina School of Fishery Zhejiang Ocean UniversityZhoushan 326022China

Aims Seagrasses provide a variety of ecosystem goods and services,but they are subjected to frequently anthropogenic *** this study,we genotyped samples collected from zostera japonica mead-ows with dramatic fluctuations in the area in order to understand the distribution of genetic variation within and among *** We collected samples from eight extant populations along coastal areas of southern *** polymorphic microsatellites were adopted to genotype the *** of genetic diversity and differentiation were calculated with general *** Findings High levels of genetic diversity were found in the studied populations,suggesting that the effective population size has not decreased signifi-cantly,which was supported by no signs of recent *** genetic diversity reflects an important role of sexual seedling recruit-ment in *** *** found a significant relationship between genetic differentiation and the shortest sea surface distance of populations,suggesting that ocean currents play a critical role in shap-ing the genetic structure of *** *** soft-ware analysis clustered the eight populations into two groups:western and eastern populations separated by the Qiongzhou Strait/Leizhou Peninsula,hinting that there was very limited gene flow through the narrow strait in this marine *** populations had high contribu-tion diversity and,thus,high priority for in situ conservation.

关键词： Seagrass zostera japonica Genetic diversity Genetic differentiation Microsatellites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Partial function prediction of sulfate-reducing bacterial community from the rhizospheres of two typical coastal wetland plants in China

引用

Journal of Oceanology and Limnology 2021年第1期39卷 185-197页

作者： Xiaoyue SONG Jiangning ZENG Yi ZHOU Quanzhen CHEN Hongsheng YANG Lu SHOU Yibo LIAO Wei HUANG Ping DU Qiang LIU Key Laboratory of Marine Ecosystem Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

Sulfate-reducing bacteria(SRB)are ubiquitous anaerobic microorganisms that play signifi cant roles in the global biogeochemical *** wetlands,one of the major habitats of SRB,exhibit high sulfate-reducing activity and thus play signifi cant roles in organic carbon remineralization,benthic geochemical action,and plant-microbe *** studies have provided credible evidence that the functional rather than the taxonomic composition of microbes responds more closely to environmental ***,in this study,functional gene prediction based on PacBio single molecular real-time sequencing of 16S rDNA was applied to determine the sulfate-reducing and organic substrate-decomposing activities of SRB in the rhizospheres of two typical coastal wetland plants in North and South China:zostera japonica and Scirpus *** this end,some physicochemical characteristics of the sediments as well as the phylogenetic structure,community composition,diversity,and proportions of several functional genes of the SRB in the two plant rhizospheres were *** *** a meadow had a higher dissimilatory sulfate reduction capability than the ***-comprising saltmarsh,owing to its larger proportion of SRB in the microbial community,larger proportions of functional genes involved in dissimilatory sulfate reduction,and the stronger ability of the SRB to degrade organic substrates *** study confi rmed the feasibility of applying microbial community function prediction in research on the metabolic features of SRB,which will be helpful for gaining new knowledge of the biogeochemical and ecological roles of these bacteria in coastal wetlands.

关键词： sulfate-reducing bacteria(SRB) microbial community function prediction 16S rDNA PacBio SMRT sequencing zostera japonica Scirpus mariqueter rhizosphere

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：