- 更多网络例句与具胚珠的相关的网络例句 [注:此内容来源于网络,仅供参考]
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The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants and the ovuliferous scales of gymnosperms.
心皮和能产生孢子的维管植物还有具胚珠的裸子植物的大孢子叶是同源的。
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Female inflorescence pendulous or erect, with numerous overlapping bracts; each bract subtending a small dichasium with 2 or 3 flowers; calyx with 1-6 scalelike lobes, or obsolete; petals absent; ovary inferior, 2-loculed; styles 2, free; ovules 2, or 1 by abortion, pendulous from near apex of each locule.
雌花序下垂或直立,具多数重叠操作苞片;每苞片对着一小的二歧聚伞花序具2或3花;花萼具1-6鳞片状的裂片,或废退;花瓣无;子房下位,2室;花柱2,离生;胚珠2,或以败育,从近先端那里下垂具有每一个子房室。
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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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Ovary superior, 1-loculed, or divided by 3 septa and 3-loculed, or incompletely septate; ovules 3 and inserted at base of ovary, or numerous and biseriate on 3 parietal placentas.
子房上位,1室,或者被隔膜分开为3室,或者不完全具隔;胚珠3枚,着生在子房的基部,或者多数胚珠在3个侧膜胎座上排成2列。
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Flowers bisexual or bisexual and male; stamens more than 2 × as many as petals; gynoecium 2- to many loculed; ovules 2 to many per locule; fruit with stalked or rarely sessile pulp vesicles; leaves odd-pinnately 3(or 5)-foliolate, digitately 3-foliolate
花两性或两性和男性;雄蕊超过2 *同数花瓣;第2-到多室雌蕊群;胚珠2到多数每室;果具柄或很少无梗果肉囊;具小叶叶奇数羽状复叶的3(或5),掌状具3小叶, 15
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Gynoecium superior, of 1-5 distinct carpels with adaxial-basal style; ovary with (1 or)2(-5) ovules; ovule basal-marginal or marginal; style gynobasic; stigma clavate to capitate.
雌蕊群上位,具有1-5个离生的心皮和正面基生的花柱;子房具(1或)2(-5)胚珠;胚珠生于基部边缘或者边缘;花柱着生子房基部;柱头棍棒状或头状。
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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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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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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。
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Ovary 2- or 3-loculed, posterior locule with 1 developed or abortive ovule or empty, anterior 2 locules each with 1 or 2 ovules.
2或3室的子房,后面的室具1发育或败育胚珠或空的,前面2子房室其中每个1或2胚珠。
- 更多网络解释与具胚珠的相关的网络解释 [注:此内容来源于网络,仅供参考]
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interfascicular cambium:束間維管束形成層 發生於兩維管束之間的形成層
integuments 珠被 胚珠外之保護構造 | interfascicular cambium 束間維管束形成層 發生於兩維管束之間的形成層 | lacunar collenchyma 有隙厚角組織 其厚角細胞初生細胞壁於角落加厚並具細胞間隙
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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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palisade mesophyll:柵狀葉肉 葉基本組織內綠色光合細胞長形垂直表皮排列
ovule 胚珠 具卵細胞的胚囊由珠心及珠被包圍 | palisade mesophyll 柵狀葉肉 葉基本組織內綠色光合細胞長形垂直表皮排列 | palmate 掌狀脈 所有主脈從葉基同一點長出
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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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Cunninghamia:杉木属
1.杉木属(Cunninghamia)常绿乔木. 叶条状披针形,边缘有锯齿,螺旋状着生,叶的上、下两面均有气孔线. 苞鳞与珠鳞的下部合生,螺旋状排列,苞鳞大,边缘有不规则细锯齿,珠鳞小,先端3裂,腹面基部生3枚胚珠. 球果近球形或卵圆形,种子两侧具窄翅.
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Iridaceae:鸢尾科
子房通常由3心皮组成,上位或下位,中轴胎座,胚珠每室少至多数. 果实通常为蒴果,稀为浆果或核果;种子具丰富的胚乳. 分科本目包括雨久花科(Pontederiaceae)、百合科,鸢尾科(Iridaceae),百部科(Stemonaceae)、薯蓣科(Dioscoreaceae)等15个科.
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monadelphous:單體雄蕊 所有雄蕊以花絲癒合成一圓柱狀
micropyle 珠孔 胚珠上珠被所留下的開口可讓花粉管進入 | monadelphous 單體雄蕊 所有雄蕊以花絲癒合成一圓柱狀 | mucigel 粘液質鞘 由根分泌形成的具粘性鞘狀物
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Piperales:胡椒目
或常有大的胚和很少的胚乳或无胚乳......2.樟目(Laurales)5.花具极退化的花被或无花被,常簇生形成肉穗状花序,胚珠大多数直生;植物体不含马兜铃酸(aristolochic acid);种子常具外胚乳......3.胡椒目(Piperales)6.水生植物,导管缺(在莲属Nelumbo的根中除外);
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Simaroubaceae:苦木科
本目包括芸香科、无患子科、槭树科、楝科(Meliaceae)、苦木科(Simaroubaceae)、漆树科、橄榄科(Burseraceae)等13科. 该目被认为是从蔷薇目演化而来,多数植物具复叶或分裂叶,雄蕊数目减少,下位花盘,心皮合生,每室仅1~2胚珠,成为独立的一个类群.
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Stemonaceae:百部科
子房通常由3心皮组成,上位或下位,中轴胎座,胚珠每室少至多数. 果实通常为蒴果,稀为浆果或核果;种子具丰富的胚乳. 分科本目包括雨久花科(Pontederiaceae)、百合科,鸢尾科(Iridaceae),百部科(Stemonaceae)、薯蓣科(Dioscoreaceae)等15个科.