检索结果-南通市图书馆

Internal phosphate starvation signaling and external phosphate availability have no obvious effect on the accumulation of cadmium in rice

引用

Journal of Integrative Agriculture 2019年第9期18卷 2153-2161页

作者： WANG Xue-qing RUAN Wen-yuan YI Ke-ke Key Laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences

Phosphorus(P)is a limiting nutrient element for crop.To obtain maximum crop yield,P fertilizer is often over-applied,which leads to accelerating exhaustion of phosphate resources and serious environmental problems.Reducing the application of P fertilizer and enhancing the P utilization efficiency of crops are significant for the sustainable development of agriculture.Cadmium(Cd)contamination in rice is another serious agricultural issue.However,whether reducing the application of P fertilizer and enhancing the P utilization efficiency of crops will increase the risk of Cd accumulation in crops remains obscure.In this study,we are aiming to elucidate the relationship between Cd and P in rice from physiological and genetic perspectives.For this purpose,the wild type(WT)rice plants and phosphate(pi)-starvation signaling repressed mutant phr2 were used to analyze the relationship between Cd and P.Here,we found that Cd stress could promote P accumulation and induce pi-starvation signaling in WT and phr2 shoots under pi-sufficient condition in a PHOSPHATE starvation RESPONSE 2(PHR2)independent manner.Besides,the expression level of Cd transporter of OsNramp5 and the uptake speed of Cd2+were not obviously changed under pi-sufficient and pi-deficient conditions.Furthermore,our Cd determination results showed that the Cd concentrations in WT and phr2 were not obviously changed under pi-sufficient and pi-deficient conditions.These results indicate that the external P availability and internal pi-starvation signaling cannot obviously affect the accumulation of Cd in rice seedling.

关键词： cadmium phosphorus Cd-accumulation pi-starvation signaling pi-availability

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

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：