植物修复研究的新方向:环保育种

New direction of phytoremediation:environmental protection breeding

植物修复技术是近年来发展起来的一种主要用于土壤重金属污染的绿色技术,而超富集植物的发现为植物修复技术的商业化提供了可能.由于超富集植物自身存在的缺陷,需要通过育种技术对超富集植物进行改良.小麦是我国三大粮食作物之一,育种基础雄厚,品种选育的多,又具有较强的适应性,据此提出植物修复研究的新方向———环保育种.运用小麦传统与现代育种手段和技术,利用现有的种质资源进行改良与驯化,培育出具有对重金属富集和超富集或不吸收富集的小麦品种,达到修复或利用被重金属污染土壤的目的.

Phytoremediation technology is the newly developing green to remediate the soil of heavy metal contamination.The discoversof hyperaccumulators for phytoremediation technology offer the possibility of commerce.As hyperaccumulator having own shortcomings,they will be improved by means of breeding technology.However,wheat is one of three staple food crops in China.While the wheat breeding had strong foundation,many wheat varieties would be bred,at the same time,wheat has a strong adaptability.Therefore,environmental breeding for wheat breeding will be proposed in the paper.The traditional and modern wheat breeding methods and techniques will be used,application of existing germplasm resources for improvement and domestication,the new wheat varieties will be bred with accumulation and hyperaccumulation or no absorbtion of heavy metals,then planting the new wheat varieties on the heavy mental contamination of soil,the pollution soil could be naturally remediated.