无性孢子

Both types of asexual spores may be produced on and within the substrate.

两种无性孢子类型可以在基质内产生。

Generally the term is applied to reproductive units produced asexually, such as the spores of bryophytes and ferns.

此术语多用于表述产生无性孢子的繁育单位，例如苔藓和蕨类植物的孢子。

Homospory The production of only one kind of asexual spore, which then develops into a hermaphrodite gametophyte, in the vascular plants the condition is seen in most ferns, psilophytes, and Lycopodium species.

孢子同型：是只产生一种无性孢子并发育为雌雄同体配子体的现象。在维管植物中，很多蕨类，裸蕨和石松属的植物中常见。

It is an asexual spore formed in a sporangium and is usually thick walled.

静孢子是由孢子囊产生的无性孢子，通常具有厚的细胞壁。

Sporangium (pl.sporangia) A reproductive body in which asexual spores are formed.

孢子囊：无性孢子产生的场所。

Compare with Zygomycetes which produce sporangiospores inside a sporangium.

而接合菌的无性孢子是在孢子囊内产生孢囊孢子。

The typical anamorph spore in Ascomycetes = conidia produced outside a specialized hyphal cell.

典型无性孢子是分生孢子，外生于特殊菌丝细胞。

Megaspore development and abortion of"Pingyi Tiancha"Compar-ing with regular developing megaspore of normal M.baccata,the megasporemother cellof"Pingyi Tiancha"could form mono-nucleus embryo sacby perhaps irregular meiosis,then most of sexual MES depauperatedand degenerated,finally aborted,or only a few further developed.Of asexualembryo sac,one or more large cells at the chalazal end of nucellus developed in-to one to more asexual embryo sac initials.After the competition between sexu-al embryo sacand asexual embryosac,most ovules only had one asexual embryo sac matured.

平邑甜茶大孢子的发育和败育与正常发育的山定子大孢子对比，平邑甜茶大孢子母细胞经减数分裂能形成单核胚囊，之后多数有性胚囊萎缩、退化而败育，只有极少数进一步发育；而无性胚囊则从胚珠合点端1个或多个较大的珠心细脆形成并首先发育为一个或多个无性胚囊原始体；经过有性胚囊和无性胚囊以及无性胚囊和无性胚囊之间的竞争，多数胚珠只有一个无性胚囊成熟。

The pathogen was i dentified as Botryosphaeria ribis,which belongs to Ascomycotina.The asexual pathogen was Phoma moricola Sacc,which belongs to Deuteromycotina. The stitable conditions for germ feat growth w ere temperature: 30, pH:7.0, relative humidity 98% in 3% maltose. Carbendazim and asomate could control thi s disease effectively.

研究表明：（1）该病是由子囊菌亚门茶子葡萄座腔菌所致，无性为半知菌亚门桑茎点菌；（2）该菌适宜生长的温度为30℃，pH为7.0 ；3%麦芽糖和 98%相对湿度对无性孢子萌发极为有利；（3）多菌灵和福美砷能有效控制该病。

Yeasts, ascospores and the asexual spores of moulds are slightly more resistant than the vegetative

酵母、囊孢子和霉菌无性孢子的耐热性不及活细菌，杀菌温度通常在65 ~ 100°C之间。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。