查询词典 antheridia

The sex organs appear about 5 weeks after sowing. The antheridia consist of 3 cells. The archegonial neck usually consists of 4 rows and 4 columns of cells at maturity.

播种5周左右开始有性器官出现，精子器由3细胞组成，成熟颈卵器颈部由4列细胞组成， 4层细胞高。

Antheridia occurred in the cushion on the dorsal and ventral surfaces of gametophytes while archegonia were observed on the ventral surface only. On hermaphroditic gametophytes, antheridia and archegonia were usually intermingled. Both types of gametangia were eusporangiate.

藏精器与藏卵器分别在孢子洒播10及12月后发生；藏精器长在中肋的背面及腹面，藏卵器只在腹面发生；两性配子体的藏精器与藏卵器混生一起，两者均属厚囊蕨型。

In culture, spores germinated two weeks after sowing. Gametophyte development is of the "Marattia" type. Gametophyte shape changed from circular, to cordate, to branched. Antheridia and archegonia appeared 10 and 12 months, respectively, after spores were sown.

培养时其孢子在洒播二周后开始发芽；配子体以「观音座莲舅」型发育，配子体生长过程由圆形转心脏形再形成分支。

A sheathlike outgrowth of tissue in bryophytes protecting the archegonia or antheridia in certain liverworts.

总苞：1 是一种由被子植物花序下方的环状苞叶组成的保护结构。2 是苔藓植物外方具有的鞘状结构，在某些苔类中用来保护颈卵器或精子器。

Recall that seed plants do not form antheridia.

取消哪一种子厂不形成 antheridia。

Relating to or designating organs, such as anthers or antheridia, that produce gametes capable of fertilizing those produced by female organs.

雄性的表明是或与某种器官组织有关的，此组织可以产生使雌性组织产生的配子受精的配子，如花药或孢子植物精子囊

The spermatozoids develop from non-motile cells within the antheridia of ferns.

介绍了近年来蕨类植物游动精子运动器和细胞骨架的研究进展。

In organisms showing sexuality, the gametes are of two types: male and female. They may be produced in special organs (e.g. carpel and anther in angiosperms, archegonia and antheridia in lower plants and some algae). The gametes may be derived from the same parent AUTOGAMY0 or from two different parents

在显示性别差异的器官中，配子体分两种：雄配子与雌配子，二者可能在特殊器官中产生（例如：被子植物的心皮或其它结构、低等植物及某些藻类的颈卵器和精子器）配子可以来自同一亲本或由两个不同亲本分别产生。

Moreover, the extremely slow development of gametophyte and time interval between the appearance of antheridia and archegonia resulting from the inherent physiochemical property of red soil make it impossible to fertilize and generate sporophyte.

此外，红壤固有的理化性质导致扇蕨配子体发育极其缓慢、精子器和颈卵器发生的时间间隔过长使其不能受精产生于包子体。

Male conceptacles contain branched paraphyses that bear the antheridia.

雌性生殖窝位小羽枝先端，轴生，卵原细胞发育自不分枝的小枝顶端，雄性生殖窝包含分支的侧枝。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。