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brassica napus
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  甘蓝型油菜
     An efficient and stable system of shoot regeneration was established by using cotyledonary petioles from 4~5 days aseptical plantlets of Brassica napus cv.Xiangyou 13 as explants on MS medium with 4.5 mg/L 6 BA as the most suitable condition.
     以甘蓝型油菜湘油13号为试验材料,建立了高效稳定的子叶柄再生体系,以4~5d无菌苗的子叶柄为外植体,6-BA含量为4.5mg/L时,不定芽的再生频率最高.
短句来源
     Genetic studies of interspecific progenies from mustard (Brassica juncea) ×rapeseed (Brassica napus) crosses show that each of A and B genome carries a pair of gene controlling erucic acid content in seeds,the gene(s) for seed coat colour may be located at B genome,and that leaf colour is controlled by a single pair of gene (with dosage effect) located at A genome in mustard.
     芥菜型油菜×甘蓝型油菜种间杂种后代遗传研究表明,芥菜型油菜A和B染色体组各有1对控制芥酸含量的等位基因,黄籽基因可能位于B组染色体,叶色受位于A染色体组的1对具有剂量效应的基因控制.
短句来源
     The heritability, the number of segregating gene and the type of gene interaction of 8 quantitative traits were analysed based on a doubled haploid population of Brassica napus L. obtained through microspore culture from the F1 of a cross between “Bao 604”and “Topas”.
     采用游离小孢子培养方法,构建了甘蓝型油菜(保604×Topas)F1代的DH群体,利用该群体估测了株高、分枝高度、主花序长度、全株角果数、每角粒数、角果密度、果长和千粒重8个数量性状的遗传力、基因数目及基因间的互作方式。
短句来源
     Factors affecting transformation of cotyledonary petioles of Brassica napus mediated by Agrobacterium tumefaciens were explored,and transgenic plants were obtained by introducing Bt toxic protein gene into Brassica napus cv. Xiangyou 13. Southern bloting showed that the Bt toxic protein gene had been integrated into rapeseeds genome.
     同时探索了影响根癌农杆菌介导转化甘蓝型油菜子叶柄的各种因素,并将Bt毒蛋白基因导入甘蓝型油菜品种湘油13号,获得了转基因植株,Southernblot分子检测证明,Bt毒蛋白基因已整合到油菜基因组中.
短句来源
     The segregation law of boron(B) nutrition trait in two F 2 population crossed between B efficient cultivars and a B inefficient cultivar and its back cross populations in rapeseed(Brassica napus) was studied under field experiment, which soil available boron was deficient.
     利用土壤有效硼缺乏的田间小区试验 ,研究甘蓝型油菜硼营养高效品种和低效品种间 2个杂交二代群体及其回交一代硼营养性状的分离规律。
短句来源
  “brassica napus ”译为未确定词的双语例句
     From the research of the reaction between two substrates(F6P and PP i) and the relationship between product(P i)and substrates(F6Pand PP i),a sequential enzyme mechanism with two substrates and two products are proposed preliminarily for the PFP from Brassica napus.
     从两底物 F6 P和 PPi 的相互作用以及产物磷酸 (Pi)与底物 (F6 P和 PPi)的相互关系分析 ,初步推断油菜籽 PFP的催化反应为双底物双产物的有序机制。
短句来源
     Preliminary Study on Correlation between Sib-mating and Selfing Sterile Rate in Recessive GMS of Brassica Napus
     甘蓝型油菜隐性核不育系兄妹交与自交不育率相关性初探
短句来源
     Contents of IAA,GAs,ABA and iPAs in leaves and flowers of Polima CMS line and its maintainer in Brassica napus at different development stage were measured by ELISA(enzyme linked immunosorbent assay).
     利用酶联免疫测定技术研究了波里马(polima)油菜细胞质雄性不育系和保持系不同发育阶段叶片和花蕾中IAA、GAs、ABA和iPAs的动态变化。
短句来源
     The pyrophosphate:fructose 6 phosphate phosphotransferase(PFP) was isolated from germinating Brassica napus seeds mainly by DEAE Sephadex A 50 chromatography and then by substrate affinity elution from phosphocellulose colume. The multiple of purification is 679 7.The specific activity is 21 75 units/mg·protein.
     采用 DEAE- Sephadex A- 5 0及磷酸纤维素柱层析 ,用底物亲和洗脱法从萌发油菜 (Brassica napus)种子中分离纯化了焦磷酸 :果糖 - 6 -磷酸 1-磷酸转移酶 (PFP)。
短句来源
     The prelimary kinetics and steady state kinetics of the PFP from Brassica napus seeds were researched. For Fructose 6 phosphate(F6P),the enzyme exhibits a typical Michaelis Menten hyperbolic kinetics and its K m value is 3 33 mmol/L.
     进行酶的初级动力学及稳态动力学研究 ,对果糖 - 6 -磷酸 (F6 P)表现为典型的米氏规律 ,Km 值为 3.33mmol/ L;
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  相似匹配句对
     Rape (Brassica napus L.)
     油菜(Brassica napus L.)
短句来源
     , rape ( Brassica napus L.)
     、甘蓝油菜(Brassica napus L.)
短句来源
     ,O.
     ,褶藓 O .
短句来源
     U.
     青藏亚种U .
短句来源
     STUDIES ON PROCEDURE OF SCREENING FOR STEM ROT RESISTANT MUTANTS IN RAPESEED (Brassica napus)
     油菜抗菌核病突变体筛选方法研究
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Two auto-allohexaploids with the respective constitution of aacccc and aaaacc were obtained following colchicine treatment with two F_1 triploid hybrids, which had been produced by crossing Brassica napus (aacc, 2n=38) with its two primary species, B. oleracea (cc, 2n=18) and B. chinensi8 (aa, 2n=20) respectively.Morphologically, the two hexaploids are characterized by the general gigantic appearance, diagnostic of the enhancing growth in horizontal direction of such organs as leaves, stems, various components...

Two auto-allohexaploids with the respective constitution of aacccc and aaaacc were obtained following colchicine treatment with two F_1 triploid hybrids, which had been produced by crossing Brassica napus (aacc, 2n=38) with its two primary species, B. oleracea (cc, 2n=18) and B. chinensi8 (aa, 2n=20) respectively.Morphologically, the two hexaploids are characterized by the general gigantic appearance, diagnostic of the enhancing growth in horizontal direction of such organs as leaves, stems, various components of flowers, fruits, et al. This is the feature also unique in autotetraploids. The somatic chromosome numbers of the two hexaploids as identified in the mitosis of root tip cells were found to be 56 and 58 respectively, which are just the doubling of the chromosome numbers of the respective triploids, 28 and 29.During the meiosis of pollen mother cells, both hexaploids form distinctly fewer univalents as compared with the triploids, but showed more trivalents and quadravalents instead.Fertilit s found apparently recovered in the two hexaploids, but it was by no means complete, obviously due to the autotetraploidy of one basic set of chromosomes.Tests on the compatibility of crosses were made between the hexaploids and triploids with three parental species, B. napus, B. oleracea and B. chinensis, and the results showed that the compatibility with any of the three species is much lower in the hexaploids as compared to the triploids. This suggests a more complete sexual isolation being established between the synthesised hexaploids and the parental species.

通过将欧洲油菜(B. napus, aacc)的二个品种分别与其二个基本种甘蓝(B. oleracea, cc)和白菜(B. chinensis, aa)进行杂交所产生的两种三倍体杂种acc和aac,经秋水仙素处理后,获得了两种同源异源六倍体aacccc和aaaacc.它们和同源四倍体一样,具有横向发育的巨大特性.它们的染色体数目,一般正好是两种三倍体数目28和29的加倍而为56和58.它们在减数分裂时的单价体数目比三倍体显著地减少了,但另外却有少量三价体和四价体出现.它们的可育性比三倍体显著地恢复了,但由于其中有同源四倍性部分的存在,因而并不能完全恢复;如再通过一定的选育,或者可有一定的利用希望.它们和欧洲油菜、甘蓝及白菜三种亲本类型之间的可杂交性比三倍体显著地降低了,表示其间的生殖隔离程度似乎是加强了.

The excised anthers of Brassica napus had been cultured on different culture media with various combinations of plant hormones and other supplements. The results obtained showed that the Gamborg's B5 and Miller's media were rather effective for the induction of callus formation from the planted anthers than other media tested. In most conditions, the callus happened to develop readily from the anther filaments and connective tissues. In the case of the differentiation of shoots from callus tissue, our...

The excised anthers of Brassica napus had been cultured on different culture media with various combinations of plant hormones and other supplements. The results obtained showed that the Gamborg's B5 and Miller's media were rather effective for the induction of callus formation from the planted anthers than other media tested. In most conditions, the callus happened to develop readily from the anther filaments and connective tissues. In the case of the differentiation of shoots from callus tissue, our results indicated that the MS medium supplemented with appropriate amount of BA and NAA appeared superior to the same midium supplemented with the combination of kinetin and IAA. The composition of the media used for induction of callus formation markedly affect the subsequent differentiation of anther callus. The temperature was found to be critical for successfully transplanting plantlets from culture vessel into pot. Among the antherderived plant population from F1 progeny of B. napus × B. campestris, different forms of plants were segregated. Besides this, among the second generation's plant populations of the antherderived plants from B. napus, only a few of them appeared uniform in field experiments. It indicated that the frequency of formation of the true pollen-derived plantlets were significantly low in the anther culture of B. napus. Questions remained to be resolved were discussed.

试验了不同培养基配方和不同的激素及附加成分对油菜花药培养的影响。结果表明,对于诱导油菜花药形成愈伤组织,Miller和B_5,配方较好。但在大多数情况下,愈伤组织易从花丝及药隔组织形成。在MS培养基中加入适量的BA和NAA以诱导芽的分化,明显优于用激动素及IAA的组合。诱导培养基的组或对形成的花药愈伤组织随后的分化有明显的影响。温度是提高小苗移栽成活率的关键因素。由甘蓝型油菜×白菜型油菜的F_1植株的花药培养诱导形成的部分植株中出现了明显的分离现象。对花药培养诱导形成的植株的第二代群体的观察表明少数植株的后代群体表现整齐一致。这些结果说明在油菜的花药培养中可能有少数花粉植株的形成。讨论了油菜花药培养中存在的问题。

Gross anatomical studies on the differentiation of floral primordium in rapeplant(Brassica napus L.)were made.It was found that the order of appearanceof the various cycles of floral organs agreed with the usual centripetal succes-sion,which was quite different from what was suggested by Dr.Yosizi Togariand others.In our studies,we found that the various whorls of the floral organin rape appeared in the order of sepals,petals,outer cycle stamens,inner cyclestamens and carpels.The short stamens developed...

Gross anatomical studies on the differentiation of floral primordium in rapeplant(Brassica napus L.)were made.It was found that the order of appearanceof the various cycles of floral organs agreed with the usual centripetal succes-sion,which was quite different from what was suggested by Dr.Yosizi Togariand others.In our studies,we found that the various whorls of the floral organin rape appeared in the order of sepals,petals,outer cycle stamens,inner cyclestamens and carpels.The short stamens developed from outer cycle stamens,andthe long stamens developed from inner cycle stamens.Dr.Yosizi Togari andothers reported that the differentiation of stamens and carpels appeared beforethat of petals and the two stamen primordia were divided into four stamens.Wedon't think that to be the real case.

作者用整体解剖法,对欧州油菜花原基分化过程进行研究,发现油菜花器分化为向心分化,而与户苅义次等人提出的分化顺序不一致。作者发现的油菜各轮花器分化顺序为:花萼、花瓣、外轮雄蕊、内轮雄蕊、心皮。外轮雄蕊原基发育成短雄蕊,内轮雄蕊原基发育成长雄蕊。油菜花原基分化的实际过程并不像户苅义次等人报告的那样:雄蕊和心皮分化在花辦分化之先,甚至4枚长雄蕊是由2枚雄蕊原基分裂变来的。

 
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