- 更多网络例句与珠心相关的网络例句 [注:此内容来源于网络,仅供参考]
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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.
雌花 花被片5或者6或者几个;心皮2或3;子房上位,室2或3;花柱2-3,离生,宿存;宽的柱头下弯;花柱间的蜜腺有或者无;胚珠每室2,下垂,倒生,具双珠被,具厚珠心;珠孔由内珠被或者两层珠被形成。
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The ovule is orthotropous and crassinucellate, nucellus is surrounded by three envelopes.
胚珠直生,厚珠心,珠心被内、外珠被以及盖被等三层被膜所包围。
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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 .
发育的胚珠最初是一整团珠心组织,由于基部的细胞分裂较快而形成一层或两层包被层—珠被,将其他珠心组织包裹在内并在一端留下一个小孔—珠孔。
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With tile ovary maturing, the orifice was narrowed because of tile ovary growth at last fused completely. The gynoecium is composed of a single carpel.(1) In tile series developmental sections of ovary, the ovular primordium was initiated on the adaxial meristem when tile mouth of ovary was formed.
子房由1枚心皮构成;(4)从子房发育过程的切片看,该植物的胚珠是在子房发生后不久发生的,子房上的圆孔形成时,从近轴侧的分生组织发生胚珠原基,由胚珠原基分化出珠被与珠心。
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Thpetum is the gland cell type. The pistil has two carpels, the ovules belong to straight ovules with bitegmic;77% nucellus stoped development before from the archesporial cell and disappear and 23% nucellus atrophy .so the flower cannot grow seeds.
安祖花的雌蕊是由2 心皮组成,胚珠为直生胚珠,双珠被,77%珠心细胞在胞原细胞形成之前停止发育,并且逐渐解体消失,23%珠心细胞发生萎缩,导致雌蕊败育。
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The ovary is composed of 2 carpels where a parietal placentation is formed, on which many campylotropous ovules grow. The ovule is bitegminous and tenuinucellate.
结果如下:小盐芥雌蕊由2心皮组成,侧膜胎座,每室胚珠多数,弯生,双珠被,薄珠心。
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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.
贮粉室的形态发生可分为4个阶段:最先是位于珠孔端的几层珠心细胞纵向地伸长;接着,珠孔端最顶部的珠心细胞发生PCD;然后,那些已经纵向伸长的珠心细胞向基地和侧向地依次发生死亡,产生贮粉室空腔;最后,珠孔端的珠心表皮细胞发生开裂,形成贮粉室的开口。
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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.
雌花 花被片5或者6;心皮3;子房3室;花柱3,离生;柱头经常下延;内花柱蜜腺或分泌蜜汁的组织宿存;胚珠每室2,下垂,倒生,具双珠被,具厚珠心;珠孔形成于内珠被,假种皮不发育。
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Calcium deposits were localized on the vacuolar membrane and in the nucleus of nucellar cells at the early degenerative stage, then they were also observed on the plasma membrane including vacuolar membrane and nuclear envelope at the middegenerative stage.
初始衰退的珠心细胞,Ca〓主要分布于液泡膜上和核内;在衰退中期的珠心细胞中,Ca〓主要分布在核膜、液泡膜及质膜上;在严重衰退的珠心细胞,Ca〓仅存在于液泡中。
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Carpels 2, rarely 3-5(-10), usually ± connate; ovary superior or semi-inferior to inferior, 2- or 3-5(-10)-loculed with axile placentation, or 1-loculed with parietal placentation, rarely with apical placentation; ovules usually many, 2- to many seriate, crassinucellate or tenuinucellate, sometimes with transitional forms; integument 1- or 2-seriate; styles free or ± connate.
心皮2,很少3-5(-10),通常多少合生;半不如下位的子房上位或,2-或3-5-10室具中轴胎座,或1室具侧膜胎座,很少具顶端placentation;通常胚珠很多,2-在很多具薄珠心的crassinucellate或,有时具过渡形式,seriate;珠被1或2 seriate;花柱离生或多少合生。
- 更多网络解释与珠心相关的网络解释 [注:此内容来源于网络,仅供参考]
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nucellus:珠心
在雄配子体发育的同时,子房内壁形成一个或多个突起发育成胚珠,成熟的胚珠有1~2层珠被(integument),珠心(nucellus)的一个细胞发育成大孢子母细胞,再经减数分裂,形成4个单倍体的大孢子.
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nucellus embryo:珠心胚
nucellus 珠心 | nucellus embryo 珠心胚 | nuchal organ 颈器
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nucellar embryony:珠心胚现象,珠心芽生,心层生胚
nucellar embryo 珠心胚 | nucellar embryony 珠心胚现象,珠心芽生,心层生胚 | nucellar seedling 珠心胚苗
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nucellular embryony:珠心胚形成
N-S ratio N-S 比率 | nucellular embryony 珠心胚形成 | nucellus 珠心
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nucellar:珠心的
nubilous 不明确的 | nucellar 珠心的 | nucellus 珠心
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nucellar:珠心
nubilose 喷雾干燥器 | nucellar 珠心 | nucellarbeak 珠心喙
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nucellar embryo:珠心胚
noxious substance 有害物质 | nucellar embryo 珠心胚 | nucellus 珠心
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nucellar cell:珠心细胞
珠心 nucellus | 珠心细胞 nucellar cell | 周缘层 parietal layer
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nucellar seedling:珠心胚苗
nucellar embryony 珠心胚现象,珠心芽生,心层生胚 | nucellar seedling 珠心胚苗 | nuchal furrow 后颈沟
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nucellar cap:珠心冠
nucellar beak 珠心喙 | nucellar cap 珠心冠 | nucellar embryo 珠心胚