Ovary superior, 2-carpellate, coherent, 1-loculed, rarely 3-5-loculed; ovules 2, rarely 1 per locule, pendulous from apex, anatropous with abaxial raphe and micropyle facing upward; funicle usually thickened above micropyle; style rarely developed, simple; stigmas 2(or 3-5), or coherent to capitate or peltate.

子房上位，具2心皮九九手机在线视频，合生美女污视频免费在线观看，1室，很少3-5室欧美性荡视频；子房每室2（很少1）胚珠亚洲精品国产专区91在线，從頂端下垂，倒生日韩在线视频台湾，背面有種脊国产性交一级，珠孔向上；珠柄通常在珠孔上部加厚爱搞网；花柱很少發(fā)育美女男人久久网站，單一；柱頭2(或3-5)明星黄色视频在线，或者合生成頭狀或者盾形在线激情A片。

The results showed that protuberance of fiber cells from TM-1 ovule was first appeared at the funiculus crest, then spread from the chalazal cap to the micropylar, this situation was also observed in mutants with fiber or fuzz, such as Naked seed (N1) and Ligon lintless.

結(jié)果表明棉花纖維突變體胚珠纖維分化突起與對(duì)照TM-1同樣首先發(fā)生在胚珠脊突處，然后是合點(diǎn)處及胚珠中部91做a免费视频，最后在珠孔端欧美中老年性生活网站。

The development of the obturator and the micropyle correlates with that of the female gametophyte in P.

黃檗珠孔塞和珠孔的發(fā)育與雌配子體發(fā)育存在密切關(guān)系。

Our investigations indicate that the structure of the micropyle changes with the different stages of the reproductive process, and becomes asymmetrical during pollination.

我們對(duì)黃檗胚珠的珠孔的形態(tài)發(fā)育研究顯示视频一区二区红樱桃网站，在不同的生殖時(shí)期精品国产自在现线国语自产在线，珠孔的結(jié)構(gòu)會(huì)發(fā)生變化，在傳粉時(shí)期它的結(jié)構(gòu)顯示不對(duì)稱(chēng)性精品人人。

As the ovule is fully developed, the obturator becomes considerably large and closely covers the micropyle.

隨著胚珠生長(zhǎng)欧美老熟妇又粗又大，珠孔塞逐漸增大，胚珠成熟時(shí)珠孔塞變得相當(dāng)大并緊密地覆蓋在珠孔上欧美a日本在线一。

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle.

珠孔受精：被子植物通常的受精方式片AA；ǚ酃芡ㄟ^(guò)珠孔進(jìn)入胚珠91网免费在线观看。

Female flowers: tepals 5 or 6 or several; carpels 2 or 3; ovary superior, 2- or 3-locular; styles 2 or 3, free, persistent; stigma broadly recurved; interstylar nectaries present or lacking; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument or by both integuments.

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The ovule of development is the one nucellus that make a group at first organization, because basilar segmentation is rapidder and form or two bags by the layer, bead by , other nucellus the organization laps inside and next alveolus stays in one aspect of the matter, bead aperture .

發(fā)育的胚珠最初是一整團(tuán)珠心組織，由于基部的細(xì)胞分裂較快而形成一層或兩層包被層—珠被，將其他珠心組織包裹在內(nèi)并在一端留下一個(gè)小孔—珠孔色在线视频导航。

These results revealed that the pollen chamber developmental pattern passed through four phases. Firstly, a group of nucellar cells at the micropylar end elongated longitudinally. Thereafter, the uppermost nucellar cells at the micropylar end initiated PCD; and these elongated cells undergoed PCD in a basally and laterally oriented direction to form a cavity.

貯粉室的形態(tài)發(fā)生可分為4個(gè)階段：最先是位于珠孔端的幾層珠心細(xì)胞縱向地伸長(zhǎng)欧美日韩A片性色；接著，珠孔端最頂部的珠心細(xì)胞發(fā)生PCD亚洲熟妇性XXXX交潮喷；然后国产一级婬片A片免费无，那些已經(jīng)縱向伸長(zhǎng)的珠心細(xì)胞向基地和側(cè)向地依次發(fā)生死亡，產(chǎn)生貯粉室空腔在线一级毛片免费完；最后又粗又黑欧美硬大视频，珠孔端的珠心表皮細(xì)胞發(fā)生開(kāi)裂，形成貯粉室的開(kāi)口日韩h片在线。

Female flowers: tepals 5 or 6; carpels 3; ovary 3-locular; styles 3, free; stigma often decurrent; interstylar nectaries or nectariferous tissue present; ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar; micropyle formed by inner integument, rudimentary aril.

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endostome：內(nèi)珠孔

endospore 內(nèi)生孢子 | endostome 內(nèi)珠孔 | endothecium 蒴內(nèi)層

micropylar haustorium：珠孔吸器

珠孔 micropyle | 珠孔吸器 micropylar haustorium | 合點(diǎn)吸器 chalazal haustorium

micropyle：珠孔

發(fā)育的胚珠最初是一整團(tuán)珠心(nucellus)組織,由于基部的細(xì)胞分裂較快而形成一層或兩層包被層-珠被(integument),將其他珠心組織包裹在內(nèi)并在一端留下一個(gè)小孔-珠孔(micropyle).

micropyle：卵孔[見(jiàn)于動(dòng)物];珠孔[見(jiàn)于植物]

microprojectile 微粒 | micropyle 卵孔[見(jiàn)于動(dòng)物];珠孔[見(jiàn)于植物] | microsequencing 微量測(cè)序

micropyle：珠孔,卵孔

micropropagation 微繁 | micropyle 珠孔,卵孔 | midge 搖蚊

exostome：外珠孔

exoste 外珠孔 | exostome 外珠孔 | exostosectomy 外生骨疣切除術(shù)

micropylar funnel：珠孔漏斗

ferrous 鐵的, 含鐵的, [化]亞鐵的 | micropylar funnel 珠孔漏斗 | shoulder of spindle 軸肩

micropylar chamber：珠孔室;珠子腔

珠孔帽 micropylar cap | 珠孔室;珠子腔 micropylar chamber | 珠孔吸器 micropylar haustorium

micropylar papilla：珠孔突起

珠孔口 micropylar opening | 珠孔突起 micropylar papilla | 珠孔板 micropylar plate

porogamy：珠孔受精

花粉管經(jīng)花柱進(jìn)入子房后通常沿子房壁或胎座生長(zhǎng),一般從胚珠的珠孔進(jìn)入胚珠,這種方式稱(chēng)為珠孔受精(porogamy); 少數(shù)植物如核桃(Juglans regia)的花粉管是從胚珠的合點(diǎn)部位進(jìn)入胚囊的, 稱(chēng)合點(diǎn)受精(chalazogamy);