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多子叶植物 的英文翻译、例句

多子叶植物

基本解释 (translations)
polycotyledon  ·  polycotyl  ·  polycotyledornae

更多网络例句与多子叶植物相关的网络例句 [注:此内容来源于网络,仅供参考]

Analyzing T-DNA flanking sequences isolated by TAIL-PCR revealed that the T-DNA nick position in the tagged rice plants are more complex than in tansgenic dicot species as tobacco and Arabidopsis.

分析TAIL-PCR分离的T-DNA侧翼序列,发现水稻转化体中T-DNA右边界的剪切位点比转基因拟南芥和烟草等双子叶植物中T-DNA右边界的剪切位点要复杂得多。

The biggest figure is dicotyledon wild liane,the small families and single species genera have a larger quantity than the big ones,and the herbage and twinning-stem plants are in a dominant position.

其基本特点是:双子叶植物科属种较多,小型科和单种属占的比例较高,草本植物和缠绕型植物占优势。

DNA C-values might be one of important indices in the evaluation of angiospermous invasiveness. To test this viewpoint, we compared DNA 1C-values and basic genome sizes in 3,676 angiosperms. The results suggest that:(1) the two nuclear values vary greatly among different groups, e.g., significantly higher in herbs than in trees, in monocots than in dicots, in perennials than in non-perennials;(2) the two nuclear values both have significant effects on plant invasiveness, especially in herbs, dicots, monocots, perennials, non-perennials, diploids, polyploids, Compositae, and Poaceae, while not significant in trees and Fabaceae.

DNA C值与被子植物入侵性密切相关,为考察应用DNA C值评估被子植物入侵性的可靠性和局限性,我们统计分析了全世界范围内3676种被子植物的DNA 1C值(配子未发生DNA复制时的染色体DNA含量)及基因组大小(单个染色体组的DNA 含量),结果表明:1)DNA 1C值和基因组大小在被子植物不同类群中差异极大,例如在草本植物中显著高于木本植物,单子叶植物显著高于双子叶植物,多年生植物显著高于非多年生植物;2)两项指标都与被子植物入侵性显著负相关,尤其是在草本植物、双子叶植物、单子叶植物、多年生植物、非多年生植物、二倍体、多倍体、菊科和禾本科中,然而在木本植物、豆科植物中其与植物入侵性无显著关系。

At present, regeneration system of cotyledons, hypocotyls, and stems, protoplasts and cotyledons codes have been established among Cucurbitaceae. There are several methods of transformation, such as agrobacteria -medidated genetic, particle gun, pollen tube passage, DNA soaking, ovary embryonary sac injection. Transgenic is tending to antivirotic and delayed maturity. Selection marker used often is NPT II.

目前,在葫芦科植物中已建立了子叶、茎尖、胚轴、茎段、原生质体和子叶节等的再生体系;用于遗传转化的方法有农杆菌介导法、基因枪法、花粉管通道法、DNA浸泡法等;用于转化的目的基因多为抗病毒病基因和延迟成熟的基因;NPTII基因为最常用的筛选标记基因。

Using nuclear DNA C-values for 539 angiosperms in China, we examined the variation of these values among growth forms and taxonomic groups and the relationship of these values with invasiveness. Mean DNA C-value of the 539 angiosperm species was 4.06 pg. Mean DNA C-value was(1) significantly lower for woody species (1.84 pg) than for herbaceous species(5.02 pg);(2) significantly lower for 360 dicots (2.20 pg) than for 179 monocots (7.80 pg);(3) significantly lower for annuals (2.78 pg) than for perennials(6.65 pg);(4) significantly lower for 134 weed species (1.93 pg) than for herbaceous non-weeds (6.75 pg) and for several families that have an unusually high proportion of weed species;(5) significantly lower for 47 exotic weed species (1.76 pg) than for 134 native weeds (1.93 pg), but significantly lower than that of "non-weedy" herbaceous species (6.75 pg);(6) lower for weeds than for "non-weedy" species in same genus or family; and (7) in herbaceous species, generally lower for weedy compared to "non-weedy" species, with some exceptions such as Avena fatua, whose DNA C-value is as high as 14.15 pg, contrarily, and some "non-weedy" herbaceous species in Cruciferae and Cucurbitaceae with very low values.

统计了中国境内有分布的539种被子植物的DNA C-值,分析了它们在不同分类群、生活型、倍性、生活史类型以及在杂草和非杂草类群中的分布情况,主要结果如下:(1)539种被子植物DNA C-值平均为4.06 pg,其中木本植物的DNA C-值平均为1.84 pg,低于草本植物的平均值(5.02 pg);(2)双子叶植物(360种)的DNA C-值平均为2.20 pg,极明显地小于单子叶植物(179种)的平均值(7.80 pg);(3)1年生植物的DNA C-值平均为2.78 pg,明显小于多年植物的平均DNA C-值(6.65 pg);(4)134种杂草的DNA C-值平均为1.93 pg,明显小于非杂草草本植物的平均值(6.75 pg),含杂草较多的科,平均DNA C-值相对较小;(5)统计的47种入侵杂草的DNA C-值平均为1.76 pg,略小于134种杂草的平均DNA C-值(1.93 pg),极显著地小于非杂草性草本植物(6.75 pg);(6)以科为单位,不同科的DNA C-值存在着极大的差异;(7)DNA C-值与染色体倍性的关系并不明显,但是,随着倍性的增加,基因组变小;(8)在同一科、属中,与非杂草相比,典型杂草的DNA C-值往往偏小;(9)总体上杂草或杂草性强的植物,它们的DNA C-值比非杂草性植物的要小。

In this review, we use Arabidopsis thaliana and Oryza sativa as examples, and summarize the study results of floral homeotic MADS-box genes in two major groups of angiosperms — core eudicots and monocots — over the past decade. Our aim was to review the functional conservation and diversity of floral homeotic MADS-box genes in angiosperms and discuss whether the ABCDE model has been conserved in monocotyledons.

本文以模式植物拟南芥和水稻为例,综述了近10年来对被子植物两大主要类群——核心真双子叶植物和单子叶植物花同源异型MADS-box基因的研究成果,分析MADS-box基因在被子植物中的功能保守性和多样性,同时探讨双子叶植物花发育的ABCDE模型在多大程度上适用于单子叶植物。

It is composed mainly of monotypic and oligotypic genera and is distributed mainly in eastern Asia.

木通科为双子叶植物纲中较原始的一个小科,多为寡种属和单种属,主要分布于东亚地区。

Since the first identification and cloning of a SUT cDNA from spinach, many SUT cDNAs have been cloned and characterized in 34 different plant species, in both dicots and monocots.

自从菠菜中克隆到第一个SUT基因以来,已先后有多个SUT基因的cDNA得到克隆与功能分析,涉及34种双子叶与单子叶植物。

During late winter the leaf color is best described as dark green with a bronze hue.

黄杨是双子叶植物纲蔷薇亚纲中的一科,有约100种之多。

更多网络解释与多子叶植物相关的网络解释 [注:此内容来源于网络,仅供参考]

epicotyl:上胚轴

胚轴由胚芽(Plumule)、上胚轴(epicotyl)、下胚轴(hypocotyl)、和胚根(radicle)所组成. 下胚轴与胚根的分界点通常不易区别. 子叶附著在下胚轴. 子叶的数目因植物种类而异. 大多数的双子叶植物皆有两片子叶. 裸子植物中除conifer 有较多的子叶之外,

gymnosperm:子植物

第七章 裸子植物(Gymnosperm) 第一节 裸子植物的一般特征孢子叶(sporophyll)大多数聚生成球果状(strobiliform),称孢子叶球(strobilus). 孢子叶球单生或多个聚生成各种球序,通常都是单性,同株或异株;小孢子叶(雄蕊)聚生成小孢子叶球(雄球花staminate strobilus),

hypocotyl:下胚轴

胚轴由胚芽(Plumule)、上胚轴(epicotyl)、下胚轴(hypocotyl)、和胚根(radicle)所组成. 下胚轴与胚根的分界点通常不易区别. 子叶附著在下胚轴. 子叶的数目因植物种类而异. 大多数的双子叶植物皆有两片子叶. 裸子植物中除conifer 有较多的子叶之外,

polycotyledon:多子叶植物

polycormic 多干的 | polycotyledon 多子叶植物 | polycrystal 多晶

Tegmen:种皮

内种皮(Tegmen)由内珠被形成,经常是一层薄软或脆弱的皮. 胚是包藏在种子内呈休眠状态的幼嫩植物,由胚根(Radicle)、子叶和胚芽 (Plumule)三部份组成. 依据子叶的数目分为多子叶胚(3至许多子叶),例如松属 植物.

Dipterocarpaceae:龙脑香科

简介 山茶目(Theales) 双子叶植物纲(木兰纲) 木本. 单叶互生. 花多两性,辊射对称,异被,5基数,覆瓦状排列,少数旋转状排列;雄蕊常多数,中轴胎座. 分科 本目包括山茶科、猕猴桃科 (Actinidiaceae)、龙脑香科(Dipterocarpaceae)、藤黄科 (Guttiferea)等18个科.

Medicago:苜蓿

植物以多年生禾本科草本植物为主,其间混生较多的双子叶植物,如蒿(Artemisia)、甘草(Glycerrhiza)、苜蓿(Medicago)以及一些菊科植物等,乔木很少. 土壤肥沃富含腐殖质. 代表动物有高鼻羚羊、黄羊、野驴、骆驼、黄鼠、仓鼠、跳鼠等.

polycormic:多干的

polycondensation 缩聚作用 | polycormic 多干的 | polycotyledon 多子叶植物

shikimic acid pathway:莽草酸途径

绿原酸是植物在有氧呼吸过程中经莽草酸途径(shikimic acid pathway)所产生的一类苯丙素类化合物,存在于许多中药材中,从高等双子叶植物到蕨类植物中均有分布,但含量较高的植物并不多.

Trochodendraceae:昆栏树科

认为无导管的风媒群如连香树科(Cercidiphyllaceae),水青树科(Tetracentraceae)和昆栏树科(Trochodendraceae)等科为最原始的类群;虫媒类植物多有巨大柱头组织和产生大量花粉等性状,显示了风媒祖先来源的性质;双子叶植物可能起源于温暖的温带地区的适生环境,