micropylar end 中文意思是什麼
micropylar end
解釋
珠孔受精- micropylar : 珠孔的,卵孔的
- end : n 1 端，尖，末端，終點。2 邊緣；極點，極限。3 結局，結果。4 目的。5 最後，死。6 【紡織；印染】經...
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( 4 ) fluorescent investigation shows that pollen started to germinate about 20 hours later after deposited on the stigmas, only 1 or 2 pollen tubes can penetrate ovary to micropylar end on the fifth day. callose plugs evenly formed in the pollen tube, and sometimes callus deposited randomly along pollen tube wall and even the whole tube wall. ( 5 ) 16 species of insects visited c. praecox in nanjing, belonging to hymenoptera, diptera, coleoptera, thysanoptera and spiders ( arachnoidea ) ; apis cerana cerana fabricius, aldrichina grahami ( aldrich ), epistrophe balteata de gee, musca hervei villeneuve are its main efficient pollinators
（ 5 ）南京地區蠟梅的訪問昆蟲約16種，分屬膜翅目hymenoptera 、雙翅目diptera 、鞘翅目coleoptera ，纓翅目thysanoptera 、及蛛形綱arachnoidea ，主要傳粉昆蟲有4種：膜翅目蜜蜂科東方蜜蜂中華亞種apisceranaceranafabricius 、雙翅目蠅科muscidae黑邊家蠅muscaherveivillcneuve 、麗蠅科calliphoridae巨尾阿麗蠅aldrichinagrahami （ aldrich ）及食蚜蠅科syrphidae黑帶食蚜蠅epistrophebalteatadegeer ；亮葉蠟梅的訪問昆蟲約18種，分屬鞘翅目coleoptera 、半翅目hemiptera 、纓翅目thysanoptera 、膜翅目hymenoptera 、雙翅目diptera 、鱗翅目lepidoptera ，另外有蛛形綱arachnoidea的蠟橄ch儷ononthuspr口ecox （ l -
It was also found that the nuclear envelope disappeared earlier at the micropylar end than that at the chalazal end. the speed of the programmed cell death were different in three nonfunctional megaspores at the micropylar end and their relationships with the neighboring cells were also different. the biological significance was discussed about these phenomenon
還發現了大孢子母細胞合點端的核膜先於珠孔端的消失，並且珠孔端3個大孢子的死亡時間不同，與相鄰細胞的關系也不同，進而討論了這些現象的生物學意義。
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