查询词典 anatropous
- 与 anatropous 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Ovary superior; carpels 1(–5), with 2 pendulous anatropous ovules per carpel.
子房上位心皮1(-5),具每心皮下垂倒生胚珠。
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When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle.
当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。
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Ovary superior, 2-carpellate, coherent, 1-loculed, rarely 3-5-loculed; ovules 2, rarely 1 per locule, pendulous from apex, anatropous with abaxial raphe and micropyle facing upward; funicle usually thickened above micropyle; style rarely developed, simple; stigmas 2(or 3-5), or coherent to capitate or peltate.
子房上位,具2心皮,合生,1室,很少3-5室;子房每室2(很少1)胚珠,从顶端下垂,倒生,背面有种脊,珠孔向上;珠柄通常在珠孔上部加厚;花柱很少发育,单一;柱头2(或3-5),或者合生成头状或者盾形。
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B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.
体细胞胚胎发生研究的结果表明:(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料;(2)在所试验到的MS、MS1/2(将MS的所有成分均减半)、WPM、DKW、B〓、SH等六种基本培养基中,MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基;(3)水曲柳的体细胞胚胎发生以直接发生为主,体细胞胚主要来自于从合子胚分离的完整子叶;(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响,诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2,5,10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0,2mg/L+TDZ 0.05mg/L;(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力,少数愈伤组织可以分化出体细胞胚;(6)愈伤组织的诱导也受培养基和激素配比的显著影响,最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2,5mg/L+TDZ0.05mg/L;(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力,此时种子尚未成熟,胚乳已呈固态,种胚的各个部分已分化完全,种胚体积占胚腔的大约2/3;(8)在各自综合的最适条件下,完整子叶的体细胞胚诱导率可达33.68%,下胚轴的愈伤组织诱导率可达90.7%。
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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 species is suspended placentation, anatropous ovule and nuclear endosporm. The embryo of Ch.smyrnioides is very small in mature seeds. They could successfully germination after 4 6 months of...
在自然状况下,明党参种子后熟阶段是我国东部地区的梅雨季节,对气候的不适应是其濒危的重要因素之一。
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Ovary superior, 4- or 5-locular, placentation axillary; ovules 1 per locule, anatropous.
子房上位,4-5室,胎座腋生;胚珠1每室,倒生。
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The ovary of Phyllostachys praecox had one anatropous ovule. The crassinucellate ovule had diploid integuments. The monosporic embryo sac had one tetrad which turned on line and many antipodal cells. The synergid had the obvious filiform appratus.
3雷竹子房1室,内具1个倒生胚珠;双珠被,厚珠心;蓼型胚囊,单孢发育,线形大孢子四分体,具多个反足细胞,助细胞具明显丝状器。
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Ovary superior, 1- or 2-loculed; ovule 1 per locule, anatropous, pendulous, rarely ovules numerous and placentas parietal; style 1, erect or curved; stigmas 1 or 2, capitate.
子房上位,室1或2;胚珠1每室,anatropous,下垂,胚珠多数和侧膜胎座的很少;花柱1,直立或者弯曲;柱头1或2,头状。
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Ovary superior or semi-inferior, 1-loculed, with 2-9 parietal placentas, rarely incompletely 2-9-celled by placentas protruding deeply into locule; ovules 2 or more on each placenta, orthotropous, anatropous, or hemi-anatropous; styles isomerous with placentas, free or partly to completely united, rarely absent, stigmas small or large, capitate to flattened and branched.
子房上位和半下位,1室,有2-9侧膜胎座,很少不完全的2-9室,胎座凸出深入进子房室;每个胎座内胚珠2或更多,直生,倒生或者半倒生;花柱和胎座同数,离生,或部分到完全合生,很少无花柱,柱头小或者大,头状到扁平或者分枝。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。