- 更多网络例句与具胚的相关的网络例句 [注:此内容来源于网络,仅供参考]
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Seeds albuminous, rarely not so; albumen of cellular type, rarely of nuclear type; embryo small.
具胚乳的种子,很少不如此;室的模式标本,很少是核模式标本的胚乳;胚小。
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Most of ovaries in the mutant were without embryo sac,and the sac full of par enchyma cells.
大多数子房不具真正的胚囊,"胚囊"中充满了薄壁细胞。
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Achenes ovoid, obovoid, or slightly to strongly bilaterally compressed, smooth, sometimes tuberculate or spiny, sometimes marginate or winged along sutures, usually greenish, black in R. melanogynus. Seeds with a copious endosperm and small embryo.
瘦果卵圆形,倒卵球形的,稍到强烈两侧压缩,平滑,有时具瘤的或者多刺的,种子具一大量的胚乳和小的胚。
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Seeds with straight embryo, with or without endosperm; radicle curved upward or downward.
种子具直立的胚,有或没有胚乳;胚根向上或者向下弯曲。
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Seeds remaining attached in dehisced fruit; seed coat with thick inner layer of dense black sclerenchyma and spongy outer layer bounded externally by a shiny black pellicle; endosperm copious; embryo straight or slightly curved; cotyledons elliptic, flattened; hypocotyl superior.
种子附存于开裂的果中;种皮具厚的内层深黑色厚壁组织和海绵状的外层,其外部边界具发亮的黑色表膜。胚乳丰富;胚直或稍弯曲;子叶椭圆形,扁平;下胚轴上位。
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Flowers bisexual; stamens 2 × as many as petals or rarely fewer; gynoecium 2-5-loculed; ovules 1 or 2 per locule; fruit either without pulp vesicles or with sessile pulp vesicles; leaves odd-pinnately 3- to many foliolate, digitately 3-foliolate, 1-foliol
花两性 雄蕊2 *更少的花瓣或很少的同数;雌蕊群2-5室;胚珠每室1或2;果或者没有果肉囊或具无梗果肉囊;奇数羽状复叶的叶3-对具小叶的很多,掌状具3小叶,1-foliol 16
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The embryological studies of strawberry showed that the ovule of strawberry were hemitropous, the ovule had the obvious hypostace structure, the type of its embryo sac was Polygonum, the embryo sac was long and narrow, the type of development of embryo was the Geum type of the Asterad type, the endosperm was Nuclear type and the somatic embryo sacs happened The integral transparency technique combined with the technique of microdissection was used in this experiment The combination was an innovation in the techniques of section.
对草莓胚胎学的研究结果表明:草莓胚珠横生、胚珠具明显的承珠盘结构、胚囊发育为蓼型、胚囊狭长、胚胎发育为紫菀型水杨梅类型、胚乳核型、并有体细胞胚囊的产生。试验中采用了多种制片方法,其中将整体透明技术和显微解剖技术相结合的方法是在制片技术上的一次创新。
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It shows that the embryogenic tissues are composed of a group of small meristematic cells at one end (embryo-proper cells), which are at different phages of cell division and many long cells at the other end (embryo-suspensor cells).
研究表明,胚性愈伤组织是由不同发育阶段的早期胚组成的细胞团,早期胚主要由长的胚柄细胞及其顶端的胚头细胞组成,而后者又具不同的分裂相。
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Seeds with copious starchy perisperm and a minute embryo embedded in small endosperm.
种子具大量的粉质外胚乳和一小胚嵌入在小的胚乳里。
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The reseach on activity changes of SOD, POD and CAT during the somatic embryogenesis of Y35 showed:(1) The activty of SOD was from 52.98 to 133.20 U·g-1·h-1, and remained a rising trend after early single embryo forming, this revealed that SOD might be positively correlated to the differentiation of embryogenic cell and the development of somatic embryo.(2) The activty of POD was from 0.05 to 0.50 U·mg-1·min-1, ascended firstly and desceded later, and was highest in embryogenic callus and lowest in late single embryo , this revealed that POD might be positively correlated to the division and differentiation of proembryo mass, while negatively correlated to the development of PEMⅢto late single embryo.(3) The activty of CAT was from 0.86 to 2.81 U·mg-1·min-1, showed an up-down-up trend, reaching to the highest peak at the time of early embryo formating and decreasing to the lowest at the time of early cotyledonary embryo formating, this revealed that CAT might be positively correlated to the development of early single embryo, while negatively correlated to the formation of middle single embryo and early cotyledonary embryo.The changes in activty of SOD, POD and CAT indicated these three antioxidant enzymes coregulated the differentiation and development of embryogenic cells during Larix somatic embryogenesis.4. Differentially expressed cDNA libraries of the stages of proembryo mass and somatic embryo maturation were successfully constructed by suppression subtractive hybridization.
对Y35体细胞胚胎发生过程中抗氧化酶活性变化的研究显示:(1)SOD活性在52.98~133.20 U·g-1·h-1之间,并在早期单胚形成后一直保持上升的趋势,表明其与胚性细胞的分化及体细胞胚的发育均具呈正相关;(2)POD活性在0.05~0.50 U·mg-1·min-1之间,呈现出先下降后升高的趋势,在胚性愈伤组织中最高,而在后期单胚形成时降至最低,表明其与原胚团的分裂和分化呈正相关,但与PEMⅢ向后期单胚的发育呈负相关;(3)CAT活性在0.86~2.81 U·mg-1·min-1之间,表现出升-降-升的变化趋势,在早期单胚形成时升至最高,在早期子叶胚形成时降至最低,表明其与早期单胚的发育呈正相关,而与中期单胚和早期子叶胚的发育呈负相关。
- 更多网络解释与具胚的相关的网络解释 [注:此内容来源于网络,仅供参考]
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embryo sac:胚囊
单孢型胚囊是指胚囊母细胞减数分裂形成四个单倍体的大孢子,4个大孢子沿珠心呈线形或T形排成,其中靠近珠孔端的三个细胞相继程序化死亡,仅远离珠孔端的一个具功能的大孢子继续发育,形成单细胞胚囊(embryo sac),再由单细胞胚囊发育
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embryonic:胚胎的
embryonated 具胚的 | embryonic 胚胎的 | embryotomy 碎胎术
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polyembryony:多胚现象
(五)具多胚现象 大多数裸子植物都具有多胚现象(Polyembryony),这是由于1个雌配子体上的几个或多个颈卵器的卵细胞同时受精,形成多胚,称为简单多胚现象;或者由于1个受精卵,在发育过 程中,胚原组织分裂为几个胚,
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cleavage polyembryony:裂生多胚[现象]
(五)具多胚现象 大多数裸子植物都具有多胚现象(Polyembryony),这是由于1个雌配子体上的几个或多个颈卵器的卵细胞同时受精,形成多胚,称为简单多胚现象;或者由于1个受精卵,在发育过 程中,胚原组织分裂为几个胚,这是裂生多胚现象(cleavage polyembryony).
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simple polyembryony:简单多胚[现象]
裸子植物常具多胚现象,多胚现象(phlyembryony)的产生有两个途径:一是简单多胚现象(simple polyembryony),由一个雌配子体上的几个颈卵器同时受精,形成多胚;另一是裂生多胚现象(cleavage polyembryony),仅一个卵受精,但在发育过程中,
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secondary xylem:次生木質部 由維管束形成層產生具運輸水分的組織即木材
secondary phloem 次生韌皮部 由維管束形成層產生具運輸光合作用產物的組織 | secondary xylem 次生木質部 由維管束形成層產生具運輸水分的組織即木材 | seed 種子 成熟的胚珠內含胚
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cyclospermous:具中心胚乳的
cyclosis 胞质环流 | cyclospermous 具中心胚乳的 | Cyclosporae,Cyclosporeae 无孢子纲,圆孢纲
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diarch:具两原木质群的
具良好劈理的 spathic | 具两原木质群的 diarch | 具胚槽的 colpate
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embryonal:胚的
embryon 表示"胚 | embryonal 胚的 | embryonated 具胚的
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embryonated:具胚的
embryonal 胚的 | embryonated 具胚的 | embryonic 胚胎的