检索结果-南通市图书馆

Selection of Bacillus thuringiensis strains in citrus and their pathogenicity to Diaphorina citri (Hemiptera: Liviidae) nymphs

引用

Insect Science 2020年第3期27卷 519-530页

作者： Silvia de Oliveira Dorta Juliana Balbinotte Rose Monnerat Joao Roberto Spotti Lopes Tatiane da Cunha Odimar Zanuzo Zanardi Marcelo Pedreira de Miranda Marcos Antonio Machado Juliana de Freitas-Astua Programs de Pos-Graduagao em Microbiologia Agricola Escola Superior de Agricultura Luiz de QueirozUniversidade de Sao PauloPiracicabaSPBrazil Laboratorio de Biotecnologia Centro de Citricultura Sylvio MoreiraInstituto Agronomico de CampinasCordeiropolisSPBrazil Laboratorio de Insetos Vetores de Fitopatdgenos Departamento de Entomologia e AcarologiaEscola Superior de Agricultura Luiz de QueirozUniversidade de Sao PauloPiracicabaSPBrazil Embrapa Recursos Geneticos e Biotecnologia BrasiliaDFBrazil Fundo de Defesa da Citricultura(Fundecitrus) AraraquaraSPBrazil Embrapa Mandioca e Fruticultura Cruz das AlmasBABrazil Laboratdrio de Bioquimica Fitopatoldgica Instituto BioldgicoSao PauloSPBrazil

Bacillus thuringiensis(bt)toxins are effective in controlling insect pests either through the spraying of products or when expressed in transgenic crops.The discovery of endophytic bt strains opened new perspectives for studies aimed at the control of sap‐sucking insects,such as the Asian citrus psyllid Diaphorina citri Kuwayama(Hemiptera:Liviidae),a vector of“Candidatus Liberibacter spp.,”associated with citrus huanglongbing(HLB).In this study,translocation of endophytic bt strains in citrus seedlings inoculated with bt suspension delivered by soil‐drench,and their systemic pathogenicity to D.citri nymphs were investigated.The pathogenicity of three wild‐type bt strains against D.citri third‐instar nymphs was demonstrated.Among the 10 recombinant strains tested(each of them harboring a single cry or cyt gene),3 can be highlighted,causing 42%–77%and 66%–90%nymphal mortality at 2 and 5 d after inoculation,respectively.The isolation of bt cells from young citrus shoots and dead nymphs,and PCR performed with specific primers,confirmed the involvement of the bt strains in the psyllid mortality.This is the first report showing the translocation of bt strains from citrus seedling roots to shoots and their potential to control D.citri nymphs that fed on these soil‐drench inoculated seedlings.The bt strains that caused the highest mortality rates have the potential to be used as bioinsecticides to control D.citri and the identified genes can be used for the production of transgenic bt citrus.

关键词： Asian citrus psyllid Citrus sinensis Cry toxins endophytic bt huanglongbing young shoots

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

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

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：