Misumenops tricuspidatus is a predator of Erythroneura sudra and Hyalopterus amygdali .Its selective coefficient varies with the amount change of these two pest populations.When the amount of both insect pest increase...Misumenops tricuspidatus is a predator of Erythroneura sudra and Hyalopterus amygdali .Its selective coefficient varies with the amount change of these two pest populations.When the amount of both insect pest increase or the amount of E.sudra increases while H.amygdali keep unchanged, E.sudra is the priority to be caught.Only when the amount of H.amygdali increase while that of E.sudra keep unchanged and the ratio reached 20/10,the H.amygdali takes the precedence to be caught.展开更多
在干细胞研究中,侧群(side population,SP)表型是指用来表示某些细胞具有的将进入细胞的荧光染料Hoechst33342或诺丹明123排出的特性,将利用该特性分离的细胞称为侧群细胞(side population cell,SP细胞)。众多实验提示SP表型可能是干细...在干细胞研究中,侧群(side population,SP)表型是指用来表示某些细胞具有的将进入细胞的荧光染料Hoechst33342或诺丹明123排出的特性,将利用该特性分离的细胞称为侧群细胞(side population cell,SP细胞)。众多实验提示SP表型可能是干细胞或前体细胞的筛选标志。然而也有实验指出SP细胞与干细胞存在差异,因此对SP细胞的研究日益深入。本文就SP表型的形成及影响因素,SP细胞与干细胞的一致性及差异性等研究现状作一综述。展开更多
文摘Misumenops tricuspidatus is a predator of Erythroneura sudra and Hyalopterus amygdali .Its selective coefficient varies with the amount change of these two pest populations.When the amount of both insect pest increase or the amount of E.sudra increases while H.amygdali keep unchanged, E.sudra is the priority to be caught.Only when the amount of H.amygdali increase while that of E.sudra keep unchanged and the ratio reached 20/10,the H.amygdali takes the precedence to be caught.
文摘在干细胞研究中,侧群(side population,SP)表型是指用来表示某些细胞具有的将进入细胞的荧光染料Hoechst33342或诺丹明123排出的特性,将利用该特性分离的细胞称为侧群细胞(side population cell,SP细胞)。众多实验提示SP表型可能是干细胞或前体细胞的筛选标志。然而也有实验指出SP细胞与干细胞存在差异,因此对SP细胞的研究日益深入。本文就SP表型的形成及影响因素,SP细胞与干细胞的一致性及差异性等研究现状作一综述。