有性生殖的

C. albicans bar1 a cells were shown to secrete both a and mating pheromones;-pheromone activated self-mating in these cells in a process dependent on Ste2, the receptor for -pheromone.

现在，另外一种新颖的有性生殖模式已在"白念珠菌"中被发现：在特定情况下，即在没有为一种分泌出的蛋白酶编码的BAR1基因存在的情况下，高效同性交配可在a-型细胞之间进行。

In this thesis, the breeding system and reproductive strategies of the three species were observed and analysed. The adaptation and evolution of the genus Ligularia under the condition of psychro-environment were discussed.The result showed that the flowering and fruiting periods of the three species were from mid-June to the beginning of October, and their inflorescences were racemose arrangement with capitulum.

本研究全面观察分析青藏高原东缘分布的箭叶橐吾、黄帚橐吾和掌叶橐吾的繁育系统；研究箭叶橐吾和黄帚橐吾各自居群中有性生殖和克隆繁殖的权衡关系，分析克隆繁殖与生态适应，探讨橐吾属植物对高寒环境胁迫条件下的适应与进化。

Heterothallism A condition found in algae and fungi in which sexual reproduction occurs only between genetically different self-incompatible mating types of the same species.

异宗配合：指在某些藻类和真菌中，进行有性生殖时，同一个种的个体是自交不亲和的，只能在异宗的个体之间才能完成交配。

It contains two types of nuclei in each cell, one isgenerative micronucleus, a typical diploid, meiotic germ-line nucleus, andanother one is vegetative macronucleus, a highly specialized expressionorganelle that provides all the transcripts for cell function.

其具有一个无转录活性的生殖核，负责有性生殖过程中遗传物质的传递；一个具转录活性的营养核负责细胞营养生长过程中基因的表达。

Interval observations under thefluorescent microscop were performed with excition waves of 470—490 nm.The results displayed that GFP genes were expressed effectively in E.octocarinatus, and GFP was distributed unifimly around macronuclearand diffused to the entire cell gradually. The chromosomes can be kept inthe macronucleus for 90h.

用优化的脂质体转化方法将含有人工染色体的重组质粒pBTub-tel2转化到处于有性生殖分裂间期阶段的游仆虫细胞中，结果表明，GFP基因在游仆虫细胞中得以高效表达，36-48小时绿色荧光均匀分布在细胞核周围，逐渐扩散到整个细胞，染色体能够在大核中保持约90小时。

In sexually reproducing organisms like us, a process called meiosis halves this number.

在象我们这样的有性生殖生物体中，称为减数分裂的过程平分了它的数目。

Most of the endangered plant has the difficulty in sexual reproduction.

大多数的濒危植物都存在有性生殖障碍，通过对珙桐的大小孢子及雌雄配子体形成的研究，发现在这一过程没有异常。

Fish andtogenesis is a kind of secial sexual development which is controlled by male nucleus and it is an important part of fish unisexual development.

雄核发育是在雄核控制下发育的一种特殊的有性生殖方式，它是鱼类单性发育的重要组成部分。

The results demonstrated that sexual reproduction capacity between isolates derived from ascospores and conidia were different, and at least partially determined by their genetic differences.

结果表明，由子囊孢子和分生孢子萌发获得的菌株的有性生殖能力具有显著差异，这可能决定于不同的遗传特性。

There were generally reproductive growth in each age class ramets of Carex kirganica as well as that in Scirpus planiculmis. Furthermore, the more or less of the reproductive allocation was certain and that is the result of reproductive trade-off and the adaptation to their habitats.

长秆苔草和紧穗三棱草各龄级分株均进行有性生殖，并保持一定量的生殖分配大小，是适应生境的生殖策略权衡的结果。12个不同水分梯度生境芦苇生殖分配RA Ⅰ为5.82％～16.31％，生殖生长比率Rrg为10.68%~16.35%，2个生境毛芦苇RAI分别为9.09%和13.98%，生殖生长比率分别为22.07%和1 8.06%。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。