查询词典 sterile

When seedling of corn inbreds were inoculated with isolates 76-527,76-528, 76-529 of Helminthosporium maydis in the greenhouse, the seed-lings of inbred lines with T male sterile cytoplasm were more susceptiblethan those with normal (non-sterile) cytoplasm.

从我国不同地区采集的玉米小斑病菌，通过温室苗期接种鉴定，及其产生的毒素对玉米种子根的抑制作用，发现76-527、76-528和76-529三个分离菌系在T型细胞质雄性不育系幼苗上产生萎蔫型大病斑，而在相对应的正常系以及M、C、CA、EK、D、PS型细胞质雄性不育系幼苗上则产生坏死型小病斑。

Compare to K type no.1B/1R male sterile line KTSP3314A,homotypic maintainer line TSP3314B and 1B/1R male sterile line K3314A,homotypic maintainer line 3314B at different developmental stages of superoxide dismutase,catalase,peroxidase activity and variety of malondialdehyde content.

利用K型非1B/1R类型小麦雄性不育系KTSP3314A，其同型保持系TSP3314B，以K型1B/1R类型小麦雄性不育系K3314A、其同型保持系3314B为对照，分别对其叶片和穗子在不同发育时期的超氧化物歧化酶、过氧化氢酶、过氧化物酶的活性和丙二醛含量的变化进行测定。

ERIC, a pair of rep-PCR primers, can amplify NSa-specific band. Using the amplification band patterns of two pairs of primers, which are REP and ERIC, six types of male sterile cytoplasm can be distinguished. 2. A cDNA library for CMS-associated genes was constructed by suppression subtractive hybridzation with the sterile line and its isonuclear maintainer.

利用特异引物扩增的结果表明NSa不育胞质与Pol、Ogu不育胞质不同，一对rep-PCR引物ERIC能扩增到NSa的特异带，而且REP和ERIC两对引物相结合能将NSa不育胞质与油菜原有的不育细胞质区分开，从分子水平上证明了NSa不育胞质的新颖性。

Four male sterile lines of different nuclei genotypes with the same cytoplasm of Aeglops bicornis ,msbicorj-83 (37 65. ms-yanshi 9^ ms-80 (6) and ms-90-110, were selected as the materials in the study on gene location of B -type cytoplasmic male sterile lines by using monisomic analysis and nullisomic -tetrasomic analysis methods.

本研究选用4个同质异核二角型不育系ms-83(37)65、ms-偃师9号、ms-80(6)及ms-90-110为材料，采用单体和缺四体两种方法对二角型不育系进行了育性基因定位。

Chromosome observation of the male sterile line and fertile line, parents of hybrid combination and F1 indicated that the chromosome number of the male sterile line is the same as that of fertile line 2n=2x=24; Pollen parent (Tagetes putula PHBO029) is tetraploid 2n=4x=48; the F1 is triploid 2n=3x=36 with hybrid vigor.

通过对不育系、正常可育系以及杂交组合父母本、子一代的染色体数目观察发现：万寿菊雄性不育系的染色体数目与正常可育系相同，均为2n=2x=24；孔雀草PHBO029为四倍体2n=4x=48，它与万寿菊不育系杂交、其杂种为具有杂种优势的三倍体2n=3x=36。

The result is consistent with previous studies. Whereas, tapetal cells of sterile anthers were disintegrated since tetrad cells were disjoined, indicating that disintegration of tapetal cells is earlier occurred in sterile anther than that in fertile anther. DNA ladder revealed that the cleavage of nuclear DNA into oligonucleosome-sized fragments to

结果表明，在花粉母细胞减数分裂后的四分体解离时期，不育花药的绒粘层细胞较可育花药提前开始裂解；在不育系S-Mo17rf3rf3花药和花粉S-(rf3)中均明显出现PCD过程的DNA片段化以及线粒体细胞色素C外渗的现象，证明了玉米CMS-S的花粉败育与花药绒粘层细胞的提前凋亡和小孢子细胞的细胞程序性死亡有关。

Using Zhongshuang4 as a recurrent parent to pollinate the male sterile plants, the ratio of male sterile plants increased with the number of backcrosses.

利用原生质体融合技，获得了甘蓝型油菜品种中双4号与新疆野生油菜野油18的对称性体细胞杂种。

Methods : We selected 134 sterile females as the study group and 45 healthy females those had procreated as controles. All people were examined by UU culture. Results : The positive rate of UU was 64.9 %(87/134), in the group of sterile females.

选择134例女性不育患者为不孕不育组，45例已生育的健康女性为正常对照组，分别进行生殖道UU培养检测。

The results showed that genetic male sterile mutants 1783 and 1789 with the fertility segregating of 1 sterile:1 fertile were controlled by a single dominant gene.

对 1 783的M7代和 1 789的M6 代的花粉育性和结实率进行了观察和考查，并对后裔单株育性的分离结果进行了统计分析。

Selective abortion stage of the stamen was primarily manifested in the stage of archesportial cell formation through anatomic observation for male sterile flower and male fertile flower. There was no archesportial cell development or anther production and was a male sterile line without anther.

通过对不育系和可育系小花的细胞及形态解剖学观察，初步确定万寿菊雄蕊选择性败育的时期，为花药受阻于花药原基细胞分化期，无孢原细胞形成和药室分化，属于无花粉囊型不育系。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。