异种的

Objective To evaluate the histological characteristics of xenogeneic graft-versus-host disease(GVHD),and to differentiate it from the allogeneic GVHD.

目的了解异种移植主病(GVHD)的组织学特点，与同种GVHD的区别及异种脾脏移植的关系。

The reproductive isolation among sympatric Pedicularis species is influenced by the differences of pollinator behavior and floral form via ethological isolation and mechanical isolation.

另一方面是通过机械隔离机制，即熊蜂不同的访花行为及植花部结构的差异避免柱头与熊蜂携带的异种花粉接触。