检索结果-南通市图书馆

Deficiency of the transcription factor PLAG1 results in aberrant coiling and morphology of the epididymis

Asian Journal of Andrology 2020年第4期22卷 342-347页

作者： Joanne Wong almas r juma Stephanie C Tran Jemma G Gasperoni Sylvia V H Grommen Bert De Groef Department of Physiology Anatomy and MicrobiologyLa Trobe UniversityBundooraVictoria 3086Australia

Mice deficient in the transcription factor pleomorphic adenoma gene 1(PLAG1)exhibit reproductive issues that are characterized,in part,by decreased progressive sperm motility in the ***,the underlying cause of this impairment is *** epididymal transit is critical for sperm maturation and motility,the morphology of the epididymis of Plag1-deficient mice was investigated and the spatial expression patterns of PLAG1 protein and mrNA were *** X-gal staining and in situ hybridization,PLAG1 was shown to be widely expressed in both the epithelium and stroma in all regions of the mouse ***,the X-gal staining pattern was markedly different in the cauda,where it could be suggestive of PLAG1 secretion into the epididymal *** all ages investigated,the morphology of epididymides from Plag1 knockout(KO)mice was aberrant;the tubule failed to elongate and coil,particularly in the corpus and cauda,and the cauda was malformed,lacking its usual bulbous ***,the epididymides from Plag1 KO mice were significantly reduced in size relative to body *** 20%of Plag1-deficient mice,the left testicle and epididymis were *** impaired morphogenesis of the epididymal tubule is likely to be a major contributing factor to the fertility problems observed in male Plag1-deficient *** results also establish PLAG1 as an important regulator of male reproduction,not only through its involvement in testicular sperm production,but also via its role in the development and function of the epididymis.

关键词： development epididymis pleomorphic adenoma gene 1 tubule coiling Wolffian duct

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

Land Use and Environmental Gradients Influence on riparian Woody Plant Diversity and Structure in Lake Manyara Watershed Ecosystem, Tanzania

引用

Open Journal of Ecology 2023年第9期13卷 633-648页

作者： almas Kashindye richard A. Giliba Mathew M. Mpanda Mwemezi J. rwiza juma r. Selemani School of Materials Energy Water and Environmental Sciences The Nelson Mandela African Institution of Science and Technology (NM-AIST) Arusha Tanzania Forestry Training Institute (FTI) Arusha Tanzania School of Life Sciences and Bio-Engineering The Nelson Mandela African Institution of Science and Technology Arusha Tanzania EU Delegation to Tanzania Dar es Salaam Tanzania

riparian vegetations are important in supporting ecological connectivity between aquatic and terrestrial ecosystems. The structure and species composition of riparian woody plants have been subjected to multiple forces with varying degree of influences. This study examined the influence of land use and environmental gradient to the structure and composition of the riparian woody plants in northern Tanzania. A total of 270 plots were surveyed for woody plant species in the riparian ecosystems and later analysed to determine the influence of land use categories (homegarden, crop field, woodlot, open canopy forest, and closed canopy forest) and environmental variables (temperature, precipitation, elevation and slope) to the species richness, abundance, and stand parameters. Basal area was higher in woodlots, homegardens and crop fields than in the open and closed canopy forests;and as expected the reverse was true for the number of stocking density. Correlation among stand parameters with environmental variables varied significantly. Species richness and species abundance were negatively correlated to precipitation, temperature and elevation, while stocking density and basal area were positively correlated to precipitation. The study recommends continual retentions of trees on farm, further promoting of agroforestry interventions and sustainable utilization of woody plants in open and close canopy forests.

关键词： Water Basin Forest Disturbance riparian Forests rift Valley Savannah

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

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

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

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：