检索结果-南通市图书馆

Characterization of root-nodulating bacteria on retama raetam in arid Tunisian soils

Progress in Natural Science:Materials International 2008年第1期18卷 43-49页

作者： Mosbah Mahdhi Angèle Nzoué Philippe de Lajudie Mohamed Mars Laboratory of Plant Biotechnology Applied to Crop Improvement Faculty of Sciences of Gabès Erriadh City Zrig 6072 Gabès Tunisia Laboratory of Tropical and Mediterranean Symbioses IRD/INRA/CIRAD/UM2/AGRO-M (UMR 113) Montpellier F34398 France

The aim of this study is to investigate the diversity of retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for difierent 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.

关键词： retama raetam Rhizobia 16S rRNA gene sequence Tunisia

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Adaptive responses to drought of two retama raetam subspecies from Tunisia

引用

Journal of Plant Ecology 2021年第3期14卷 527-540页

作者： Ricardo Gil Dhikra Zayoud Zeineb Ouerghi Monica Boscaiu Oscar Vicente Mohamed Neffati Instituto de Biologfa Molecular y Celular de Plantas(IBMCP UPV-CSIC)Universitat Politecnica de Valencia46022 ValenciaSpain Laboratoire des Ecosystemes Pastoraux et Valorisation des Plantes Spontanees et des Micro-organismes Associes Institut des Regions AridesUniversite de Gabes4119 MedenineTunisia Departement de Biologie Faculte des Sciences de Tunis1060 TunisTunisia Instituto Agroforestal Mediterraneo(IAM) Universitat Politecnica de Valencia46022 ValenciaSpain Instituto de Conservacion y Mejora de la Agrodivcrsidad Valenciana(COMAV) Universitat Politecnica de Valencia46022 ValenciaSpain

Aims The survival and ecological distribution of plants in arid habitats are mainly conditioned by water availability and physiological adaptations to withstand *** the present study,we have compared the physiological responses to drought of two retama raetam(retama)subspecies from Tunisia,one of them living under the desert climate(***)and the other one growing on the coast(***).Methods To physiologically characterize the two *** subspecies,and to elucidate their main mechanisms underlying their tolerance to drought stress,parameters related to seed germination,growth,photosynthesis(net photosynthetic rate,intracellular CO_(2) concentration,transpiration rate,stomatal conductance and water-use efficiency)and accumulation of osmolytes(proline,glycine betaine[GB]and soluble sugars)were determined in 4-month-old plants subjected to stress for up to 1 *** Findings Drought significantly inhibited germination,growth and all the evaluated photosynthetic *** of *** *** were severely affected by drought after 3 weeks of treatment when photosynthesis rates were up to 7-fold lower than in the *** the same time,proline and GB significantly accumulated compared with the irrigated controls,but much less than in *** ***;in the latter subspecies,proline and GB increased to levels 24-and 6-fold higher,respectively,than in the corresponding *** summary,the population living in the desert region exhibited stronger tolerance to drought stress than that adapted to the semiarid littoral climate,suggesting that tolerance in *** is dependent on accumulation of osmolytes.

关键词： germination leaf gas exchange osmolytes retama raetam water stress xerophytes

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

Diversity of Botryosphaeriaceae species associated with grapevine and other woody hosts in Italy,Algeria and Tunisia,with descriptions of Lasiodiplodia exigua and Lasiodiplodia mediterranea ***

引用

Fungal Diversity 2015年第2期71卷 201-214页

作者： B.T.Linaldeddu A.Deidda B.Scanu A.Franceschini S.Serra A.Berraf-Tebbal M.Zouaoui Boutiti M.L.Ben Jamâa A.J.L.Phillips Dipartimento di Agraria Sezione di Patologia vegetale ed EntomologiaUniversitàdegli Studi di Sassarivia E.De Nicola 107100 SassariItaly Département des Biotechnologies Facultédes Sciences de la Vie et de la TerreUniversitéSaad Dahleb09000 BlidaAlgeria INRGREF Laboratoire de Gestion et de Valorisation des Ressources ForestièresB.P.N 22080 ArianaTunisia Centro de Recursos Microbiológicos Departamento de Ciências da VidaFaculdade de Ciências e TecnologiaUniversidade Nova de Lisboa2829-516 CaparicaPortugal

The diversity of Botryosphaeriaceae species associated with“Botryosphaeria dieback”of grapevine was investigated in 18 vineyards in Sardinia,*** isolates obtained from different woody hosts including holm oak,sweet orange and broom bush in Italy,Algeria and Tunisia were also *** and cultural characteristics as well as ITS and EF1-αsequence data were used to identify the fungal ***-eight botryosphaeriaceous isolates were obtained from 113 symptomatic grapevine samples,from which ten species were *** seriata was the dominant species(25%of isolates),followed by Neofusicoccum parvum(21.7%).Two species,Diplodia olivarum and *** are reported for the first time on *** addition,two new species namely Lasiodiplodia mediterranea *** grapevine,holm oak and sweet orange and Lasiodiplodia exigua *** broom bush are *** artificial inoculation experiments conducted on excised green grapevine shoots and lignified canes as well as holm oak seedlings,*** was shown to be an aggressive pathogen.

关键词： Citrus×sinensis Diplodia Lasiodiplodia Neofusicoccum Quercus ilex retama raetam

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

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：