Past study re-sults had indicated that MMC in the apomictic type could at most develop to te-trad stage.We observed that the sexual embryo sac of"Pingyi Tiancha"coulddevelop into 4-nuclei embry sac.

前人只觀察到無(wú)融合生殖類型的大孢子母細(xì)胞至多能發(fā)育到四分體時(shí)期，而我們觀察到平邑甜茶的有性胚囊能發(fā)育到四核胚囊看一级免费的黄色网站。

For the approach to the relations between the endangered situation and their sexual reproductive processes in Cimicifuga nanchuanensis, some comparative studies were made in C.simplex , a close and widespread species.

為了探討南川升麻瀕危與其生殖過(guò)程的聯(lián)系。對(duì)廣布近緣種單穗升麻進(jìn)行了部分對(duì)照研究。論述單穗升麻的小孢子發(fā)生和雄配子體發(fā)育以及花藥壁的發(fā)育欧美日本高清在线不卡视频。

The investigation of the structures of reproductive organs,megasporogenesis,microsporogenesis and the development of male and female gametophyte in Dendrocalamus sinicus are made using normal paraffin method in this article.

通過(guò)石蠟切片的方法對(duì)巨龍竹生殖器官結(jié)構(gòu)、大小孢子的發(fā)生和雌国产精品视频一区二区三区四区、雄配子體的發(fā)育過(guò)程進(jìn)行了觀察研究黄片AAAAA超黄片。巨龍竹為一心皮組成的單室單子房，子房?jī)?nèi)具有一個(gè)胚珠色色色五月网站，倒生日老女人视频、雙珠被、厚珠心在线国产视频一区二区三区。

Nutrient cells were obtained from these pigment mutants by enzymatic method and conchocelis were got by parthenogenesis. When the conchocelis were mature and conchospores were released, they were cultured singly and picked up as F1 gametophytic thallus.

通過(guò)酶法分離突變體的營(yíng)養(yǎng)細(xì)胞亚洲,无码,乱伦，單性生殖獲得絲狀體；分別使絲狀體成熟并放散殼孢子欧美粗暴性交，然后單株培養(yǎng)和篩選獲得褐黃亚洲加勒比黑人一区二区、翠綠和褐綠色子代葉狀體。

In addition, the propagation of sexual contain other genes are also two types of fungus emerged, which show that Nosema may be a genetic control of reproductive cycle, and may be infected when the host started sexual reproduction.

另外欧美精品久久久久久久久，有性繁殖所包含的其他基因也在這兩類真菌中出現(xiàn)女女激情毛片，這表明，微孢子蟲可能有一個(gè)遺傳控制生殖周期少妇野战一级A片，并且可能在感染宿主時(shí)開始進(jìn)行有性繁殖高清日韩精品更新视频。

Asexual reproduction by multiple fission; characteristic of many ''.

通過(guò)多種無(wú)性裂變的生殖；許多孢子蟲具有此特點(diǎn)久久精品79国产精品。