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pistil相关的网络例句

查询词典 pistil

与 pistil 相关的网络例句 [注:此内容来源于网络,仅供参考]

The reproductive development process of birch was described as follows: Male inflorescences extended from apical bud in early June. In later June, stamen primodium was differentiated in the bract of male inflorescence and the differentiation of bract was generated in female inflorescence. During July, anther layers and archesporial cell were differentiated in anther, then archesporial cell developed into mother microspore cell. Pistil primodium came into being at the same time. In early part of August the meiosis of mother microspore cell started. In later August, mono-nucleus microspore was formed. After September, both male inflorescence and female inflorescence were dormant.

白桦的生殖生长发育过程如下:6月初,雄花序从顶芽中生长出来。6月中下旬,雄花序苞片上分化出雄蕊原基,雌花序分化出苞片。7月,雄花花药分化出花药壁和孢原细胞,孢原细胞演化为小孢子母细胞,雌花序苞腋处分化出雌蕊原基;8月中上旬,小孢子母细胞减数分裂,8月下旬形成单核小孢子;9月后雄花序以单核小孢子状念越冬,雌花序以雌蕊原基状念越冬。

Sepal apex not aristate; pistil 2-carpeled; style apex 2-fid; leaves oblong, elliptic, or subcordate; herbs perennial

萼片先端不具芒;雌蕊2心皮;花柱先端2裂;叶长圆形,椭圆形,或近心形;多年生草本 2 Herniaria 治疝草属

What to stand on your in front is a charming, the brilliance shines on the person's woman-she graceful if green beautifully green bamboo, smile dimple such as quiet quiet water lily;Activity,such as weak, aweather, openings the arethusa vomit a pistil ……station in her in front of is a Wei shore the handsome-majesty deeply wear elegance, natural and unrestrained in the Yang overflow noble qualities, more secluded in the manner of speaking, tactful, deep and sharp, all present widely read have another just.

站在你面前的是一个风姿绰约,光彩照人的女子——她亭亭若青青翠竹,笑靥如静静睡莲;行动如弱柳迎风,开口似兰花吐蕊……站在她面前的是一个伟岸俊男——庄严中透着飘逸,潇洒中漾溢着高贵的气质,谈吐中更是幽静、机智、深刻、犀利,无不显现出博学多才。

Sepals distinctly awned at or below apex; corolla salverform with a long narrow tube; stamens and pistil mostly exserted.

等于或低于顶具芒的清楚的萼片;花冠高脚碟状的具一长的狭窄的筒部;雄蕊和雌蕊主要外露。

Female flowers solitary or several and male mixed in axillary cluster; pedicels 2-6 cm; calyx yellow-green, 6-lobed; sepals slightly thick, biseriate, outer obovate or subspatulate, ovate-elliptic, 6-7 × 3-4 mm, inner shorter, obovate, ca. 5 mm, with purple stripes; disk absent; pistil depressed globose, ca. 2 × 2.7 mm, 3-locular; styles 3, bifid at apex, arms recurved.

雌花单生或数个雌花和雄花在腋生簇束里混生;花梗2-6厘米;花萼黄绿色,6裂;萼片稍厚, 2列,外部倒卵形或近匙形,卵状椭圆形, 6-7 * 3-4 毫米,内部的短,倒卵形,长约5毫米,有紫色条纹;花盘无;雌蕊扁球形,约2×2.7毫米,3室;花柱3,在先端2裂,裂片下弯。

Using cytohischemical staining methods, with the results of comparison the dynamics of proteins and polysaccharides in the anthe wall cells and colule cells of different developmental phases in female and male flowers, the anormogenesis of anther tapetum in the inflecting phase of from bisexual flower to unisexual flower was observed. In microspore developed phase, the tapetum functions of preserving and transportingmutritive material for microspore development and of secreting callosal enzyme for decompositing callosal cell lost no normal guadrant formed, of being abnormal meiose of pollen mother cells, and then, the stamen aborted selectively in female flowers and pistil in male flower.

利用细胞组织化学染色技术,对雌、雄花雄蕊花药壁细胞及花药内细胞发育过程中多糖及蛋白质动态进行了比较,实验中观察到雌花在从两性至单性花转变时期雄蕊绒毡层在整个发育过程中表现异常,在小孢子发育过程中未能起到贮藏、转运营养物质供小孢子发育及适时分泌胼胝质酶溶解胼胝质壁的功能,并且花粉母细胞减数分裂异常而未形成四分体结构,进而导致雌花雄蕊选择性败育,而雄花中雌蕊组织也发生了选择性败育过程。

Pistil and style 1; stigma minute, capitate or truncate.

雌蕊和花柱1;柱头小,头状或者截形。

Pollen-tube growth down the style is both positively and negatively chemotropic; the tube grows toward chemicals secreted by the pistil, and away from atmospheric oxygen.

花粉管沿着花柱的生长是既有正向性也有负向性的:花粉管向着由雌蕊分泌的化学物质生长,同时远离空气中的氧气生长。

The monogerm male sterile and maintainer sugarbeet lines were conducted to observe the development of their female organ in comparative anatomy by optical microscopy.the following results show that: the sugarbeet pistil is composed of 3-5 piece coadnate carpels,shape include the stigma,style and ovary of three parts.

以甜菜单胚雄不育系和保持系为材料,用光学显微镜对其雌性器官各部发育进行了比较解剖学观察,结果如下:甜菜雌蕊由3-5枚心皮合生而成,外形可分为柱头、花柱和子房三部分。

Stamens inserted at apex of corolla tube; filaments short; anthers sagittate, connivent, adherent to pistil head, spurred at base; disc absent.

雄蕊花冠筒的着生的在先端;花丝短花药箭头形,靠合,对雌蕊头状花序,基部具距附着;花盘无。

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