embryo sac 【植物;植物學】胚囊。
【植物;植物學】胚囊。 “embryo“ 中文翻譯: n. (pl. embryos) 1.【植物;植物學】胚 ...“sac“ 中文翻譯: n. 1.【生物學】囊,液囊。 2.上衣 (=sack) ...“bisporic embryo sac“ 中文翻譯: 雙吡咯烷類生物堿; 雙孢胚囊“blastocyst; embryo sac; blastophore“ 中文翻譯: 胚囊“chick embryo air sac“ 中文翻譯: 雞胚氣室“chick embryo amnoitic sac“ 中文翻譯: 雞胚羊膜腔“chick embryo yolk sac“ 中文翻譯: 雞胚卵黃囊“compound embryo sac“ 中文翻譯: 復胚囊“embryo sac cell“ 中文翻譯: 胚囊細胞“embryo sac competition“ 中文翻譯: 胚囊競爭“embryo sac haustorium“ 中文翻譯: 胚囊吸器“embryo sac mother cell“ 中文翻譯: 大孢子母細胞; 胚囊母細胞“embryo sac nucleus“ 中文翻譯: 胚囊核“embryo sac tube“ 中文翻譯: 胚囊管“embryo-sac cell“ 中文翻譯: 胚囊細胞“monosporic embryo sac“ 中文翻譯: 單孢子胚囊“normal type of embryo sac“ 中文翻譯: 胚囊的正常壁“pollen embryo sac“ 中文翻譯: 花粉胚囊“tetrasporic embryo sac“ 中文翻譯: 四孢子胚囊“during early embryo sac development“ 中文翻譯: 在胚囊發育早期“embryo“ 中文翻譯: n. (pl. embryos) 1.【植物;植物學】胚;【動物;動物學】胚胎(對人來說,一般指三個月以內的胚胎)。 2.胚芽(時期),萌芽時期。 in embryo 未發達的,初期的;萌芽時期的;在計劃中的。 adj. 1.胚胎的,胚的。 2.胚芽(時期)的,未發達的,原始的,初期的。 “in embryo“ 中文翻譯: 在萌芽中“sac“ 中文翻譯: SAC =Strategic Air Command 〔美國〕戰略空軍司令部。 n. 1.【生物學】囊,液囊。 2.上衣 (=sack)。 “abnormal embryo“ 中文翻譯: 不正常胚“acceptor embryo“ 中文翻譯: 受體胚胎
embryogeny |
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( 2 ) there are few ideal techniques for mearsuring [ ca2 + ] cyt . in conclusion , both limitation delay studies of [ ca2 + ] cyt in embryo sac during fertilization . the thesis work is to investigate the connection of [ ca2 + ] cyt and fertilization by avoiding drawbacks noted above , say , employing an ideal experimental plant , torenia fournieri , with a naked embryo sac that protrudes from the micropyle 針對這種現狀,本工作選用具有裸露胚囊的玄參科的藍豬耳植物為研究材料,研究ca ~ ( 2 + )與受精過程中相關的細胞學事件的關系,探索[ ca ~ ( 2 + ) ] _ ( cyt )在被子植物雙受精過程中的作用。 |
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Embryological studies reveal that megaspore and such cells as egg , synergid and antipodals in mature embryo sac initiate the division of forming haploid plants through embryogenesis or callus formation 胚胎學觀察揭示大孢子與胚囊內的卵細胞、助細胞和反足細胞均有可能在培養中啟動分裂,通過胚狀體或愈傷組織形成單倍體植株。 |
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The endosperm is usually triploid and develops from the primary endosperm nucleus , the triploid nucleus resulting from the fusion of one of the male gametes from the pollen tube with the polar nuclei in the embryo sac 胚乳通常是三倍體,由初生胚乳核發育而來,三倍體核來源于花粉管中的雄配子與胚囊中兩個極核的融合。 |
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So far , achieved studies on calcium in embryo sac of angiosperm mostly located in memebrane - binding calcium and total calcium but little in free cytoplasmic calcium ( [ ca2 + ] cyt ) 到目前為止,對植物胚囊中鈣的研究也絕大多數局限于總鈣和膜鈣的的測定,而對于被子植物胚囊內胞質游離鈣的研究則幾乎是空白。 |
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By anatomical observations , the mutant was characterized with the phenotypes of fewer stamens , more pistils and stigmas , twin ovary , malformed embryo sac , as well as stamen originated pistils 該突變體花器官主要表現為:雄蕊數目減少,雌蕊增加,雙子房,多柱頭,胚囊畸形,有雄蕊雌蕊化現象。 |
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The concept of an alternation of generations can be extended to the flowering plants , in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively 這個概念也可以運用在有花植物上,由胚囊和花粉各自表達雌雄配子體世代。 |
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Antipodal cells the three haploid cells found in the embryo sac of seed - bearing plants that migrate to the chalaxal end of the sac farthest from the micropyle 反足細胞:胚囊三次分裂形成卵細胞,助細胞和極核等,其中位于合點端的三個單倍體細胞稱反足細胞。 |
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Illiensis type and t . tetraphylla type . there are more than one types of embryo sac in 3 species , sush as t . illiensis , t . heteropetala and t . heterophylla 在所報道的5組共45種郁金香屬植物中,發現該屬植物的胚囊發育類型具有一定的系統學意義。 |
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After we learnt enzymatic isolation method of yang hong - yuan and zhou chang , we explored to develop a pressure cover glass method of observation on embryo sacs 我們在學習了酶解法之后,摸索研究了一種觀察甜菜胚囊的壓片法。 |
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Enclosure of the nucellus by the integuments is incomplete , the embryo sac or , in gymnosperms , to the archegonium 珠被并不是將珠心完全封閉,而是留有珠孔以便受精時花粉管進入胚囊,或裸子植物的藏卵器。 |
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Observation by paraffin section showed that lipeng no . 2 embryo sac mother cells were almost entirely degenerated during megasporogenesis 切片觀察發現,麗? 2號胚囊母細胞在四核期已完全退化。 |
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It is concluded that embryo sac sterility was the main reason for highly stable seedless characteristic of lipeng no . 2 cultivar 因此,胚囊高度敗育是麗? 2號產生無核的主要原因。 |
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Frequencies of apomictic embryo sacs were the highest in winter and summer respectively in two years 兩年中,無融合生殖胚囊出現的頻率分別在冬季和夏季最高。 |
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Bisporic embryo sac 雙孢胚囊 |
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The embryo sacs observation is one of the main study method for embryology 摘要胚囊觀察是植物胚胎學的主要研究方法之一。 |