angiosperms
英
美
网络 被子植物; 被子植物分支; 被子植物门; 植物亚门; 开花植物
双语例句
- Heterostyly has been reported in31 families of angiosperms.
据报道，在被子植物的约31个科中有异型花柱植物。 - Unlike the companion cells of angiosperms, they are not derived from the same mother cell as the sieve cell.
但与被子植物的伴胞不同，它们不和筛胞起源于一个共同的母细胞。 - Likewise, certain angiosperms, for example, some Eucalyptus species, will present few seed harvesting problems.
同样某些阔叶树种，例如一些桉树类，采种的问题不多。 - Pollen-ovule ratio ( P/ O) of the angiosperms, the ratio of pollen grains to ovules, can reflect more indications than floral morphology for the breeding systems.
花粉-胚珠比系指开花植物之花粉数与胚珠数的比值，对植物之繁殖系统较花之形态更具有指标作用。 - Photosynthetic and physiological characteristics of three angiosperms of different evolutionary ages under acid rain stress
不同起源时期的3种被子植物对酸雨胁迫响应的光合生理生态特征 - Angiosperms begin as free zygotes immersed in a fluid.
被子植物开始时是浸沉在液体中的游离合子。 - Filament 1.The stalk of the stamen bearing the anther in angiosperms.
花丝：1.被子植物中，雄蕊支撑花药的柄。 - Gymnosperm A general term for any seed plant except the angiosperms, characterized by bearing naked seeds.
裸子植物：被子植物以外的种子植物统称裸子植物，以种子裸露为特征。 - Green plant having a vascular system: ferns, gymnosperms, angiosperms.
有脉管系统的绿色植物：蕨类植物，裸子植物，被子植物。 - The female gametophyte is reduced, but larger than in angiosperms; it is not autotrophic.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。 - Contrary to common variation type in Angiosperms, the variation from high unsymmetric karyotype to low unsymmetric karyotype was found in existence in Gymnosperm.
与一般植物染色体的常见变异形式相反，在裸子植物中存在从高不对称性到低不对称的变异形式。 - Our data show that genome-wide reshaping of seed DNA methylation is conserved among angiosperms and has a profound effect on gene expression in cereal crops.
本研究的数据表明全基因组范围的DNA甲基化重修饰，在被子植物种子是保守的，并且对禾谷类作物基因的表达有着重要的意义。 - Endosperm The nutritive tissue that surrounds the embryo in angiosperms.
胚乳：指包在被子植物胚外方的营养组织。 - Recent phylogenetic analyses of multiple molecular data sets indicate that Trimeniaceae is one of the basal taxa of the extant angiosperms.
最新的分子系统发育研究显示，腺齿木科是现存被子植物的重要基部类群之一。 - Chiefly tropical or xerophytic woody plants; practically unknown as fossils but considered close to the ancestral line of angiosperms.
主要是热带或旱生木本植物；作为化石基本上未知，但被认为与被子植物世系关系较近。 - Somatic cells of angiosperms enter a regenerative phase and behave like embryos.
被子植物体细胞进入一个生殖阶段，而且其行为象胚。 - Course contents include the principles of taxonomy, selected families of angiosperms, dicotyledons and monocotyledons.
课程内容包括植物分类原理、重要裸子植物、双子叶植物和单子叶植物之鉴定方法。 - Family of dicotyledonous flowering plants regarded as among the most primitive of extant angiosperms.
双子叶开花植物科认为原始的现存的被子植物。 - The chlorophyll and photosystem compositions in lotus embryo were different from those of other angiosperms.
1，莲胚芽不仅含有叶绿素和光合系统，而且其色素和光合系统组成均与莲叶以及其它被子植物的叶组织不同。 - Progress in studies on floral development of angiosperms and some consideration on future studies
被子植物系统学中花发育研究的进展及对今后研究的思考 - Origin and early evolution of angiosperms: Retrospect and Prospects
被子植物起源和早期演化研究的回顾与展望 - The seed plants are composed of angiosperms and gymnosperms, having 1 family, 1 genera and 1 species.
在种子植物中有裸子植物1科、1属、1种； - This point is different from general angiosperms, which only has dorsal and marginal vascular bundles.
这一点与一般植物的子房维管束只有背缝线和腹缝线维管束不同。 - A cytological study of plastid inheritance in angiosperms
被子植物质体遗传的细胞学研究 - Application of ITS sequences of nuclear rDNA in phylogenetic and evolutionary studies of angiosperms
核rDNA的ITS序列在被子植物系统与进化研究中的应用 - Angiosperms accomplish the transition from vegetative growth to reproductive growth by flowering.
被子植物通过成花转变过程完成从营养生长向生殖生长的过渡。 - While the colorful and diversity flowers provide angiosperms more reproductive opportunities.
五彩缤纷、各式各样的花为被子植物提供了更多地生殖机会。 - Orchidaceae is one of the largest families of angiosperms which has tremendous ornamental and economic value.
兰科是被子植物最大科之一，兰科植物具有巨大的观赏价值和经济价值。