形成孢子

The principles of abnormality and effect on formation of normal microspore were analyzed.

分析了这些异常形成的可能机制及对正常小孢子形成的影响。

The apothecium forms spores called ascospores which are ejected into the environment. Most will fall on susceptible plants in the immediate area of the apothecia, but some can travel long distances by wind.

子蘘盘形成子蘘孢子并喷射到环境中，大多数会落到附近易感的植株上，但有些能够借助风的作用传播很远。

Recent developments about appressorium of Colletotrichum were discussed in this paper.

综述了发疽菌分生孢子在寄主表面的附着、附着胞的形成、附着胞对环境影响因素的应答和附着胞的穿透。

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。

Inside the perispore,there are large cavities which are formed mainly by the upheaval of the outer perispore.The lophate folds and superficial ornamentation of spores are formed by the upheaval of the outer perispore.

周壁内有大的空腔，主要是由周壁外层向外隆起形成的，隆起进而形成了孢子的脊状褶皱和表面纹饰。

Based on principle of pollen abortion, utilizing tapetum of anther cell, mitochondria of tapetum, callose well, process of cell meiosis during formation process of pollen, we adopt genetic transformation to create plant male sterility, such as, exogenous cytotoxin gene, chaperones, anti-sense RNA, degradation of callose ahead of time, disturbing information intercommunion between mitochondria and nucleolus and affected development of pollen sporule by bacteria.

根据花粉败育的原理，利用花药细胞绒毡层、绒毡层线粒体、胼胝质壁、细胞减数分裂过程等花粉形成过程中的不同环节，采取外源细胞毒素基因、分子伴侣、反义RNA技术、提早降解胼胝质、扰乱线粒体与细胞核之间的信息交流和细菌影响花粉小孢子发育等策略，使花粉不能正常形成，从而产生不育花粉，达到产生雄性不育的目的。

This paper reviewed microsclerotia or spores in soil are stimulated to germinate by host root exudates, hyphae colonizes on the surface of root, pathogens penetrate epidermis and develop in cortex, expand on stem and leaf, and symptom development, shows that host plant develops various barriers to restrain this fungus invasion.

本文系统探讨了土壤中微菌核或孢子受寄主根系分泌物的刺激，开始萌发、产生的菌丝在寄主根表面定殖、穿过表皮、在皮层中发生及在寄主体内扩展和症状形成等黄萎病菌侵染棉花的过程，阐述了寄主植物形成多级防御反应阻击病原菌的入侵。

Leaf spot was one of the serious fungal diseases in blackcurrant culture in Heilongjiangprovince. It disserved leaves and formed a lot of light brown spots as soiled on leaves in initialstages, then the spots turned into brown, in the end the spots turned into grey hoar and pycnidiumappeared in the center of the spot, leaves turned yellow and fell off earlier, influenced the outputand quality.

叶斑病是近年黑穗醋栗生产栽培中发生较严重的一种病害，主要侵染植物的叶片，初期在叶片上形成浅褐色水渍状斑点，稍后斑点变褐，后期病斑浅灰色或灰白色，斑点中心形成黑色孢子器，叶片变黄卷曲，提前脱落，从而引起黑穗醋栗产量及果实质量的下降。

At first, optimization for the perfect stage production of M. grisea was investigated in vitro. The number of perithecia and ascospores, the percentage of viable ascospores were markedly increased when juice of mature tomato was used, pH was adjusted around 5. 5 and 0.1％CaCO〓 was added in oatmeal tomato agar medium.

本研究首先选用自然成熟的番茄榨汁和燕麦片作为培养基的主要组分，通过调节培养基pH值在5.5左右并添加0.1％CaCO〓途径优化了稻瘟病菌有性世代形成的条件，显著增加了稻瘟病菌子囊壳形成的数量和子囊孢子的成活率。

In the mating test, mycelial protoplast pairs between single spore isolates of different strains formed colonies with clamp connection, while mycelial protoplast pairs between the same single spore isolates formed colonies without clamp connection, suggesting that the two nuclei of the spores possessed identical mating type factors.

在交配试验中，源于不同菌株单孢分离物的菌丝原生质体的配对形成具锁状联合的菌落，而源于同一单孢分离物的菌丝原生质体的配对则形成无锁状联合的菌落，暗示担孢子中的两个核具有相同的交配型。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。