珠心胚 的英文怎麼說

中文拼音 [zhūxīnpēi]
珠心胚 英文
nucellar embryo
  • 珠 : 名詞1. （珠子） pearl 2. （小的球形物） bead
  • 胚 : 名詞[生物學] （初期發育的生物體） embryo
  1. In this paper the floral ontogeny and the ovary development of rivina humilis l. were observed. the results showed that ( 1 ) the tepal primordia initiated in 2 / 5 spirals. the abaxial one initiated first, then the adaxial one, finally the lateral two initiated nearly simultaneously. the third one initiated on the position near the first tepal, and there is a gap between itself and the second tepal. ( 2 ) the 4 stamineal primordia initiated in one whorl at the same time. ( 3 ) the carpellary primordium initiated from the abaxial side of flower primordium ; the carpellary primordium grew upwards and towards axis after it was formed, therefore an elliptic orifice was formed at the adaxial position of ovary, which was the remainder of the mouth of ovary before the ovary was fused completely. with the ovary maturing, the orifice was narrowed because of the ovary growth, at last fused completely. the gynoecium is composed of a single carpel. ( 4 ) in the series developmental sections of ovary, the ovular primordium was initiated on the adaxial meristem when the mouth of ovary was formed

    對數珠珊瑚的花器官發生和子房的發育過程進行了觀察.結果表明: （ 1 ）數珠珊瑚花被呈2 / 5螺旋狀發生，遠軸側的1枚先發生，其次為近軸側的1枚發生，最後側方的2枚花被幾乎同時發生，第3枚花被在靠近第1枚的位置發生，第2枚和第3枚之間有1個空隙; （ 2 ） 4枚雄蕊是同時發生的; （ 3 ）心皮發生於分生組織的遠軸側，心皮原基形成后，向上向軸生長，在子房成熟前在近軸側非正中位形成1個孔，該孔為心皮最終愈合前的殘跡，到子房成熟時，因子房的生長孔被擠壓縮小，在進一步的生長過程中愈合.子房由1枚心皮構成; （ 4 ）從子房發育過程的切片看，該植物的胚珠是在子房發生后不久發生的，子房上的圓孔形成時，從近軸側的分生組織發生胚珠原基，由胚珠原基分化出珠被與珠心
  2. Chalaza ( pl. chalaxae or chalazas ) the region of an angiosperm ovule where the nucellus and integuments merge

    合點：被子植物胚珠上的一個區域，在合點處珠心和珠被愈合。
  3. Enclosure of the nucellus by the integuments is incomplete, the embryo sac or, in gymnosperms, to the archegonium

    珠被並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。
  4. The nucellus is usually degraded and absorbed as the endosperm develops.

    珠心通常在胚乳發育時被分解和吸收。
  5. The cells of the integument and nucellus of some plants form perfectly normal embryos.

    某些植物的珠被和珠心細胞形成完全正常的胚。
  6. In endospermic seeds the endosperm replaces the nucellus and is often a rich source of growth - regulating substances

    在有胚乳種子中，胚乳取代珠心，成為生長調節物質（應為營養物質譯者注）的豐富來源。
  7. The mean number of ovules per follicle was 10. 59, n = 320

    每心皮的胚珠數目為10 . 59 （根據320個心皮中胚珠的平均數） 。
  8. Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.

    營養物質可以貯藏於由珠心產生的一種特殊組織，叫外胚乳。
  9. A transcriptional fusion between 35s promoter and nearly full length hag1 cdna was constructed and transformation was performed through agrobacterium using root expantso the first whorl organs of transgenic plants flowers are carpel - like organs with stigmatic papilllae and a few ovules

    轉基因植株花的表型類似與ap2突變體，其第一輪花器官萼片具有心皮的特徵，頂端產生柱頭狀的乳突，邊緣有胚珠產生。
  10. The carpel is homologous with the megasporophylls of certain spore - bearing vascular plants ( pteridophytes ) and the ovuliferous scales of gymnosperms

    心皮和能產生孢子的維管植物（羊齒類）還有具胚珠的裸子植物的大孢子葉是同源的。
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