异形孢子

Alternation of generations can be divided into two basic types, one for the same shape alternation of generations, the sporophyte and the gametophyte in the morphology similar size, only cytology and physiology are different, such as Ulva, etc.; another type of shape alternation of generations, that is, in the sporophyte and gametophyte morphology and size are also significant differences.

世代交替又可分为两种基本类型，一为同形世代交替，即孢子体和配子体在形态大小上类似，仅在细胞学上和生理上有所不同，如石莼等；另一类型为异形世代交替，即孢子体和配子体在形态结构和大小上也有明显差异。

F1 hybrid has the morphological feature which is between the male and female parents and shoed strong heterosis, exuberant vitality, late ripe period and low rate of self-fertility. The average chromosome configuration of F1 in PMC MI was 18.58Ⅰ+18.59Ⅱ+0.085Ⅲ+0.028Ⅳ. At anphase Ⅰ in PMC, some laggard chromosomes arranged in equatorial plate. Micronucleus and a lot of abnormal cells can be observed at dyad, tetrad and microspore.

杂种F1形态特征介于双亲之间，具有较强的杂种优势，生长旺盛，熟期晚，自交结实率较低。F1花粉母细胞减数分裂中期Ⅰ平均染色体构型为18.58Ⅰ+18.59Ⅱ+0.085Ⅲ+0.028Ⅳ，PMC后期Ⅰ观察到部分落后染色体排列在赤道板上；二分体、四分体和小孢子时期，细胞内普遍观察到微核，且出现大量异形细胞。

Which are divided into sporophyte developed special-shaped generational and generational shaped gametophytes developed.

其中又分为孢子体发达的异形世代交替和配子体发达的异形世代交替。

Azollaceae A family of free-floating aquatic heterosporous ferns found in tropical and warm temperate parts of America and Asia and introduced elsewhere.

满江红科：原产于美洲与亚洲的热带与温带地区的具有异形孢子的，能够自由漂浮的水生蕨类，现各地都有引种。

In heterosporous plants, the microspores give rise to small male prothalli bearing male sex organs, and larger female sex prothalli bearing female sex organs.

在具异形孢子的植物中，小孢子形成具小的雄性器官的雄原叶体，而大孢子形成大的具雌性器官的雌性原叶体。

Myxosporidia disease: There are nearly a thousand species of Myxosporidia . The common are: silver carp drjagini、 pie-shaped drjagini、 crucian carp drjagini、 round drjagini、 special-shaped drjagini、 weishan cercospora cryptosporidium 、 silver carp rotary insect 、brain myxosoma (port quarantine of the first category object)、 the Chinese myxosoma、ShiZhen myxosoma、bipolar insects、Jitao Thelohanellus、Library Road insects etc.

粘孢子虫病：粘孢子虫近千种，常见的有：鲢碘泡虫、饼形碘泡虫、鲫碘泡虫、圆形碘泡虫、异形碘泡虫、微山尾孢虫、鲢旋缝虫，脑粘体虫、中华粘体虫、时珍粘体虫、两极虫、吉陶单极虫、库道虫等。

The Hive-spores gradually drifted down to the surface of Chau Sara and saturated the ground with their denuding, alien toxins.

异形的孢子慢慢的飘到地面，开始利用异形的强酸侵蚀赵莎拉行星的地面。

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。