According to the formation of the apomitic embryos, apomixis could be divided into three major types: diplospory, apospory and adventive embryony.

按其胚體發(fā)生的途徑成年18岁在线网站，無融合生殖可分為二倍體孢子生殖精品熟女少妇AV免费久、無配子生殖和不定胚生殖三種類型谁有黄色网址。

In angiosperms, a diploid embryo may develop from a cell of the nucellus or chalaza; this is also apospory.

在被子植物中www.毛片段子免费。二倍體的胚胎可以從珠心或合點(diǎn)的細(xì)胞發(fā)育而來，這也可以被稱為無孢子生殖。

Apospory The devlopment of the gametophyte directly from the cell of a sporophyte, thus bypassing meiosis and spore production.

無孢子生殖：配子體的發(fā)育直接來自孢子體的細(xì)胞而不經(jīng)過減數(shù)分裂和孢子產(chǎn)生的生殖過程视频偷拍网。

The life-cycle of C.baileyi in Beijing duck and in the CAM of chicken embryowas studied with both the light-microscope and the Nomarski interference-contrastmicroscopy.The results indicated that the life-cycle within duck was simillar tothat of CAM.It included excystation, merogony,gamogonyand sporogony.The thin-walled oocyst was first observed and described in China.

借助普通光學(xué)顯微鏡和微分干涉顯微鏡對(duì)C.baileyi在北京鴨體內(nèi)的生活史和在雞胚絨毛尿囊膜上的生活史進(jìn)行了較詳細(xì)的研究日韩午夜福利尤物在线观看视频，結(jié)果表明：C.baileyi在北京鴨體內(nèi)和在CAM上的生活史相同，主要包括"脫囊—裂殖生殖—配子生殖—孢子生殖"四個(gè)階段日韩深夜在线。

Nevertheless, the mosquitoes provide a physiological milieu, for sporogony of the malaria parasites.

已知蚊蟲天然免疫系統(tǒng)在瘧原蟲穿壁免费高清一级片、卵囊發(fā)育和子孢子移行進(jìn)腺等過程中產(chǎn)生包括局部和全身性多位點(diǎn)的免疫反應(yīng)，同時(shí)蚊蟲為瘧原蟲孢子生殖階段提供必不可少的生理環(huán)境一級毛片黃色三級片黃色。

The development of a gametophyte directly from a sporophyte without the occurrence of meiosis or spore formation.

無孢子形成性爱视频国产免费，無孢子生殖，無孢子狀態(tài)沒有經(jīng)過減數(shù)分裂或孢子形成而直接由孢子體進(jìn)行的配子體發(fā)育

To understand the degeneration of unfertilized aposporous embryo sac in an aposporous species Pennisetum squamulatum, the central cell in the unfertilized embryo sac was characterized ultrastructurally.

為理解植物無孢子生殖胚囊未受精條件下的退化人人模人人操生活网，對(duì)無孢子生殖植物非洲狼尾草未受精成熟胚囊中央細(xì)胞退化做了細(xì)胞形態(tài)學(xué)研究456欧美视频在线。

The results showed that the sex ratio of trees was 1 m 2 f, and the natural T. cuspidata tree was able to sexually reproduce for many years. Male trees had fecundity when the diameter at breast height ranged from 1.5 cm to 92 cm, while female trees had fecundity when the DBH from 9.5 cm to 68.1 cm. Male trees typically flowered at the age about 20 years earlier than female trees. The numbers of microstrobili were 3 times more than that of megastrobili, and only 1/10 megastrobili developed into seed. The numbers of strobili and seed were correlated with DBH, crown diameter and height of trees; however, no significant correlations were observed with other site factors. Numbers of strobili decreased from the upper to lower canopy layers, while the quantity of seed decreased from the middle, upper to lower canopy layers. Seed-setting rate increased from the upper to lower canopy layers. Numbers of strobili and seeds in different directions of the canopy were not uniform, but the differences weren't significant.

結(jié)果表明：現(xiàn)實(shí)東北紅豆杉天然種群中，♀♂性比為1：2欧美A级中文字幕免费；天然東北紅豆杉有性生殖持續(xù)時(shí)間長黄色工厂-这里都是精品，雄株胸徑在1.5~92cm，雌株胸徑在9.5~68.1cm保持生殖狀態(tài)久久久久久国产免费视网址，雄株較雌株早約20年進(jìn)入花期曰韩一级A片欧美一级A片；天然東北紅豆杉小孢子葉球數(shù)量平均為大孢子葉球數(shù)量的3倍，大孢子葉球轉(zhuǎn)化為果實(shí)的數(shù)量不足1/10在线亚洲欧美va天堂在线，孢子葉球數(shù)量亞洲精選精品黃色視頻、結(jié)實(shí)數(shù)量與樣株的胸徑、冠幅999国产精品永久、樹高顯著相關(guān)911视频黄色，與其他立地因子相關(guān)不顯著；孢子葉球數(shù)量在冠層間的分布呈現(xiàn)由上至下的遞減規(guī)律欧美精品公开视频，而結(jié)實(shí)數(shù)量在冠層間沿中国產特黃特粗又長A片、上、下遞減榴莲视频ios网址链接，結(jié)實(shí)率沿冠層自上而下遞增男人晚上天堂黄色网站；孢子葉球與結(jié)實(shí)數(shù)量在樹冠不同朝向上也呈現(xiàn)出一定的特點(diǎn)，但總體上差異不顯著xxxx激情。

Cerevisiae, reproducing by budding and from ascospores and capable of fermenting carbohydrates.

酵母菌：一種酵母菌屬的單細(xì)胞真菌小草无码免费视频，尤指 S.cerevisiae ，通過發(fā)芽和從子囊孢子生殖丁香六月深爱网婷婷五月，能夠發(fā)酵成碳水化合物

Asexual reprodution is called binary fission which simply means a cell divides into two identical cells.

無性生殖的方式有：分裂生殖韩av.com、出芽生殖、孢子生殖欧美熟妇A片黄在线视频、營養(yǎng)生殖3344300部。

apospory：無孢子生殖

油蒿生殖枝重、頭狀花序重都顯著增加(P.05),但繁殖分配均保持在26%左右;油蒿的繁殖......研究綿刺(Potaninia mongolica)的胚胎發(fā)育過程,首次報(bào)道其有性生殖模式為無融合生殖的體細(xì)胞無孢子生殖(Apospory),由合點(diǎn)端珠心細(xì)胞形成3~7個(gè)無孢子孢原,

apospory：無孢子生殖, 無孢子狀態(tài)

aposporous | 無孢子生殖的 | apospory | 無孢子生殖, 無孢子狀態(tài) | apostasis | 膿腫

somatic apospory：體細(xì)胞無孢子生殖

又稱為可重復(fù)的無融合生殖.它包括二倍體孢子生殖(diplospory)或生殖細(xì)胞無孢子生殖(generatine apospory)和體細(xì)胞無孢子生殖(somatic apospory)二種形果實(shí)(fruit)是由子房或連同花的其它部分發(fā)育而成的.單純由子房發(fā)育而成的果實(shí)叫真果,

generatine apospory：生殖細(xì)胞無孢子生殖

此又稱為可重復(fù)的無融合生殖.它包括二倍體孢子生殖(diplospory)或生殖細(xì)胞無孢子生殖(generatine apospory)和體細(xì)胞無孢子生殖(somatic apospory)二種形果實(shí)(fruit)是由子房或連同花的其它部分發(fā)育而成的.單純由子房發(fā)育而成的果實(shí)叫真果,

sporogony：孢子生殖

第3個(gè)階段是孢子生殖(Sporogony)階段,此時(shí)合子外迅速形成一層包膜,即形成卵囊(Oocyst)隨糞便排出體外. 在外界適宜的溫度麻豆国产精品、濕度條件下,卵囊內(nèi)發(fā)育形成孢子囊(4個(gè))和子孢子(8個(gè)),含有成熟子孢子的卵囊為感染性卵囊.

sporogony：孢子發(fā)生/孢子生殖

sporogonium /孢子體/ | sporogony /孢子發(fā)生/孢子生殖/ | sporophore /孢囊柱/

aposporogony：抑制孢子生殖

aposperms | 離座種子植物 | aposporogony | 抑制孢子生殖 | aposporous | 無孢子生殖的

aposporous：無孢子生殖的

aposporogony | 抑制孢子生殖 | aposporous | 無孢子生殖的 | apospory | 無孢子生殖, 無孢子狀態(tài)

sporiparity：孢子生殖法

sporification 孢子生成 | sporiparity 孢子生殖法 | sporiparous 產(chǎn)孢子的;有芽孢的

sporogenous：產(chǎn)孢子的;孢子所生的;孢子生殖的;芽孢所生的

sporogenic 生孢子的;生芽孢的 | sporogenous 產(chǎn)孢子的;孢子所生的;孢子生殖的;芽孢所生的 | sporogenous yeast 產(chǎn)孢子酵母