integument的例句大全

Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.

大多数被子植物的胚珠有两层珠被, 而裸子植物通常只有一层.

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The cells of the integument and nucellus of some plants form perfectly normal embryos.

某些植物的珠被和珠心细胞形成完全正常的胚.

词典精选例句

Testa The hard dry protective covering of a seed, formed from the integuments of the ovule.

外种皮:覆盖在种子外部的坚硬干燥的保护层, 由胚珠的珠被发育形成.

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Chalaza ( pl . chalaxae or chalazas ) The region of an angiosperm ovule where the nucellus and integuments merge.

合点 :被子植物胚珠上的一个区域,在合点处珠心和珠被愈合.

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There are collagenous fiber in integument especially integument and the hymenopterous integument discovered by the H . E .

用伊红和 马洛赖氏 三色法染色可见体壁尤其在腹壁的折叠处及膜翅壁中存在着胶原纤维.

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The ovule is of anatropous, simple integument and tenuinucellus.

胚珠为倒生型，具单珠被和薄珠心。

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Each of the mature pollen grains has 2 nuclei, 1 germination pore, Its ovule is anatropous, double integument and tenuinucellate.

成熟花粉粒2核，1萌发孔；

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The character of macrospore in development were as followed: anatropal ovule, basal placenta, thick nucellar, two integument, megaspore mother cell coming directly from archesporial cell, early degenerating antipodal cell, thedevelopment of the embryo sac being conformed as the polygonum type.

雌配子体发育的特点是：倒生胚珠、基底胎座、厚珠心、双珠被、孢原细胞直接长大成大孢子母细胞、反足细胞退化早，胚珠发育为蓼型。

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The pistil shape structure of the almond is: Wet column cap, style solid, ovary 1 room, the basal placenta, overflowing-ovule, pairs of integuments, thick nucellus, having obturator.

扁桃雌蕊形态结构为：湿型柱头，花柱实心，子房1室，基生胎座，横生胚珠，双珠被，厚珠心，有珠孔塞。

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The pistil was composed of five carpels, stigmas and styli separated, the ovary was coadnate, basal placenta, it had only one circinotropous ovule, the ovule was crassinucellate and had two layers of integument, the micropyle was formed by the inner integument.

雌蕊由5心皮组成，柱头、花柱分离，子房合生，1室，基生胎座，胚珠1个，拳卷型，双珠被，厚珠心，珠孔由内珠被形成。

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The major part of the inner integument is absorbed after about 21 days of the blooming date ( the cotyledon begin to differentiate within the first ten days of May).

开花授粉、授精后，珠被发育为种皮时，内珠被逐渐被吸收，大约在开花后2P天左右（5月上旬，子叶开始分化时），内珠被绝大部份被吸收。

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Result: The texture of integumentary cells, the shape and size of hair socket and bristle were important characters for species identification.

结果：可根据体壁细胞的纹理、毛窝的形态、大小及刚毛的特征进行区别。

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The first protector against the entry of microorganisms is the integument.

抗御微生物进入体内的第一道防线是皮肤。

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The ovary contains 20-23 ovules. The ovules are hemitropous, with 2 integuments, tenuinucellate and the archesporial cell functions directly as the mega-spore mother cell.

子房具胚珠20&23枚，胚珠横生，珠被二层，薄珠心，孢原细胞直接起大孢子母细胞作用。

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By the experiment of melanin synthesis inhibition in vitro observing appearance changes in integument, the paper demonstrate it is an important reaction step in melanin synthesis and metabolism of silkworm that tyrosine hydroxylase catalyse tyrosine into dopa. 4.

通过眠蚕离体培养体壁组织的黑色素合成抑制试验观察到的体壁外观性状变化，证明了酪氨酸羟化酶催化酪氨酸转化成多巴是家蚕黑色素合成代谢途径上的重要反应步骤。

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Structure and development of the integumental glands of the Chinese Alligator

扬子鳄皮肤腺结构与发育的初步观察

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In addition, the inner integument cells developed into endothelium.

此外，珠被内表皮细胞发育为珠被绒毡层。

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Study on vascular morphology of integument tissues of the channel area in the leg

小腿经络区体被组织的血管形态学研究

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The simplified scanning electron microscopic method for hard integument of animals and insects

硬体壁动物和昆虫扫描的简便制作方法

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The epidermal cells in the integument became flattened, smaller in size, and without nuclei.

体壁皮细胞缩小呈扁平形，无细胞核，连成线状，有断裂；

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