Figure 1 Regulation of egg quality and its influence on developmental events2 评判鱼类卵质的物理指征 衡量卵质优劣, 其最直接的指征是卵子的受精率、胚胎的孵化率以及幼鱼的生存性能, 如畸形率、存活率等。卵子受精率评价的难易程度根据鱼类卵子透明性的差异而有所不同。卵子成功受精之后, 胚胎细胞开始发生卵...
PROTOZOA of the order Heliozoa are provided with numerous straight radiating processes known as axopods, which in certain genera ( Actinophrys, Actinosphaerium ) are known to be supported by axial filaments consisting of microtubules in ... AC Macdonald,JA Kitching - 《Nature》 被引量: 40发表...
T-helper cell epitopes that trigger a T-helper cell response of the TH1 type support effector functions of CD8-positive killer T cells, which include cytotoxic functions directed against tumor cells displaying tumor-associated peptide/MHC complexes on their cell surfaces. In this way tumor-...