有性阶段

方法观察小鼠红内期原虫血症水平、蚊体内有性阶段的虫体发育状况以及PRBC提取物对脾细胞产生NO的诱导作用。

Methods Observing the levels of parasitemia in mice , development of sexual stage parasites in mosquitoes and induced effect of PRBC extract on NO 2 - from supernatants of spleen cells .

发育成有性阶段为子囊菌纲小丛壳菌属一新种，命名为八角小丛壳菌（GlomerellailliciumWei）。

Glomerella illicium Wei in perfect stage , a new species in genus Glomerella .

它实际上是免疫蚊虫去抗击配子，即疟原虫的有性阶段。

It involves , in effect , immunizing mosquitoes against gametes , the sexual stage of Plasmodium .

枫杨白粉病的发生发展和生态环境有密切关系，杭州地区的枫杨白粉病不能侵染胡桃树，而对桑树虽能侵染但会促使病原菌在无性及有性阶段发生形态变异。

The occurrence and development of powdery mildew of Pterocarya stenoptera has close relation with the ecological environment .

两种腔肠动物形式之一：腔肠动物生命周期中自由游动的有性阶段和凝胶质伞状身体及触须。

One of two forms that coelenterates take : is the free-swimming sexual stage in the life cycle of a coelenterate and has a gelatinous umbrella-shaped body and tentacles .

土生空团菌由于没有有性阶段仅仅形成不育的菌丝体和菌核，传统的研究方法很难满足对该菌分类鉴定及遗传多样性的研究。

Traditional methods could not meet the needs for the study of classic identification and genetic diversity of Cg , because Cg only formed infertile mycelium and sclerotium without sexual period .

报道了与危害中国秦岭华山松的华山松大小蠹相关的真菌新种，描述了其有性阶段和无性阶段的形态特征。研究标本保存于西北农林科技大学。

During a recent survey of fungi associated with bark beetle in Qinling Mountains of China , a new species was isolated , and the aim of this study was to describe this fungus .

小麦条锈菌是一种专化寄生菌，至今尚未发现有性阶段，利用寄主抗病基因是鉴定小种致病基因的唯一途径。

Puccinia striiformis is a specific fungus on wheat and its perfect stage has not yet been found . Therefore it is the only method to use host resistance genes to identify the pathogens ' virulent genes .

对23种国家稀有濒危物种进行了迁地保护，保护效果良好的有19种，其中，进入有性繁殖阶段，并能对外提供种源的有11种。

23 rare and endangered species at the national level have been moved to other proper places for conservation and 19 of them are well conserved , of which 11 have stepped into the stage of generative propagation and are able to supply seeds .

在所有的高等植物和一些藻类会出现有性的单倍体阶段和无性的二倍体阶段交替的现象。

In all plants and some algae there is an alternation between sexual haploid and asexual diploid stages .

从各杂交组合的后代中任意挑选出3个有性重组体，比较了这些有性重组体与其亲本在无性和有性阶段的主要生物学性状。

Three sexual recombinants from each of the three combinations were randomly selected to compare the major biological properties with their parental isolates .