孢子中壁

With the aeciospore wall of armandii pine blister rust as inducer, chitinase gene was induced to express in Trichoderma atroviride cells. The cDNA fragment of chitinase gene was cloned by RT-PCR approach.

方法］采用华山松疱锈病的锈孢子壁作为诱导物，诱导深绿木霉SS003中几丁质酶基因的表达，并通过RT-PCR方法扩增得到几丁质酶基因片段。

The results showed that masses of hypha formed in serum-induced RPMI1640 liquid medium and above 96% hypha formed; in the corn-tween80 solid medium, chlamydospore and pseudomycelium formation was evident.

结果表明，在含10%小牛血清的RPMI1640液体培养基中可见成团的菌丝形成，结晶紫芽管检测法能定量分析白色念珠菌菌丝生长状况；在玉米粉-吐温80固体培养基中可见厚壁孢子及假菌丝形成。

Nucellar cells degenerated in advance under low temperature, which resulted in thickened embryo sac wall surrounding the megasporocyte.

低温处理的蝴蝶兰，胚囊发育过程中珠心细胞提前退化，在大孢子母细胞外围形成较厚的胚囊壁。

The development of anther and ovule followed the finish of the flower organ initiation. Pollen mother cells and well developed microsporagium wall occurred when the diameter of the bud reached about 3.0 mm, and the archesporial cell which played the role of megaspore mother cell formed in ovule when the diameter of the bud reached about 3.5 mm.

花药及胚珠的发育与花器官的形态发生之间有明显的连续性，当花蕾直径为3.0 mm左右时花粉母细胞及完整的花粉囊壁形成，直径达到3.5 mm左右时胚珠中出现孢原细胞的分化，它直接起大孢子母细胞的功能。

Hyphae and swollen cells resembling chlamydospores were observed in the scrapings of skin lesion of the experimental infection of the rabbit.

在实验家兔的皮损刮屑中可见菌丝及类似厚壁孢子的肿胀细胞。

A thick - walled structure in which sporozoan zygotes develop and that serves to transfer them to new hosts.

孢子一种外壁很厚的组织，孢子在这里受精发育，再把他们转入新的个体中

In microgametogenesis, callose deposits in tapetal cells and begins to accumulate around microspore nucleus at the early microspore stage, callose deposition around microspore nucleus continues through uninucleate microspere stage.

小孢子早期，绒毡层细胞中积累胼胝质类物质，小孢子核周围也开始沉积胼胝质，逐渐形成完整胼胝质壁；小胞子晚期，绒毡层细胞开始解体，药室内壁细胞开始加厚，其加厚的物质为胼胝质类物质。

The cells ovoidal, while budding the wall structure is entroblastic. Reproduction by multilateral budding. It is not form ascospores or ballistospores; on malt agar red carotenoid pigments is synthesized.

该菌株细胞卵圆，出芽时胞壁结构为内分芽型，多端芽殖，不产生子囊孢子和掷孢子；在麦芽汁琼脂上产生红色胡萝卜素，颜色反应阳性，菌落平滑，有光泽，质地软而呈粘液状，不发酵任何糖，能同化麦芽糖、蔗糖、乳糖、棉子糖、松三糖和硝酸钾，能分解尿素；细胞水解物中含甘露糖、葡萄糖和半乳糖。

The results shows that the tapetal expanding abnormally occurs in dyadphase stage, microspore abortion occurs in the early of monokaryon stage, disaggregation in the end of monokaryon stage, only some spall of microspore is observed in monokaryon stage, the four cell walls also exist, the tapetal cells became completely vacuolated, almost filled the whole locule. vascular bundle of male sterile line anther vanish at mature pollen stage.

结果发现花药绒粘层在二分体时期发生异常，小孢子在单核前期开始败育，至单核后期完全解体，花药发育后期不育系药腔中只观察到少量的小孢子残体，花药壁的四层细胞依然存在，绒粘层细胞已经彻底液泡化，占据了药腔的整个空间，花粉成熟期不育系花药维管束消失。

In the course of present investigation in interspecific hybrid of Tritical crops, cytomixis mas observed at microspore stage, the present investigation deals with detailed analysis of this phenomenon at different conditions.

作者在麦类远缘杂种的减数分裂过程中发现，在减数分裂Ⅰ的前期和小孢子时期均存在核穿壁的现象，并对各种状态下的穿壁现象进行了详细的观察研究。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。