粉孢子

It can cause heavy losses of tomato production and friuts' quality. According to the researches of internal and external country, This review summarized the main symptoms of Fulvia fulva of tomato caused by cladosporium fulvum , the biological properties, including to form character, temperature and humidity of mycelium and spore, the outbreak of the disease, regularity of epidemic, race differentiation of different area, Maofen 802,Shuangkan 2No.should be chosen. In resisting disease ,mode of action, gene clone,gene structure,gene function and control methods of the disease.

根据国内外关于番茄叶霉病的研究情况，综述了番茄叶霉病的发病症状；病原菌的生物学特性，包括病菌的形态特征以及适宜菌丝和孢子的生长温度（20~25℃）以及湿度（85%以上）等条件；病害的发生条件和流行规律；不同地区病菌生理小种的分化情况；生产上应选用毛粉802、双抗2号等抗病品种；番茄与病菌之间的作用机制；番茄Cf及ECP等抗病基因的克隆、结构和功能及病害防治等方面的研究情况。

The yellowish powdery spores of certain club mosses, especially Lycopodium clavatum, used in fireworks and explosives and as a covering for pills.

石松粉某些石松植物的黄色的含粉末的孢子，尤其是棒形石松属植物用于焰火、火药和药片的覆膜

Palynology, one science of plant＇s pollen and spores, has been proven to be a new frontier discipline.

孢粉学是研究植物孢子和花粉的科学，是一门新兴的边缘学科。

All these materials provided the basal information for palynology of our country.

本项目还获得了大量翔实的蕨类孢子和孢壁的发育照片，这些成果为我国孢粉学提供了基础资料。

In addition, the relationship of the spore morphology and taxonomy in Polypodiaceae subfam. Polypodioideae was discussed in this paper, providing more informative data for the systematics and palynology of Polypodiaceae.

本文还就孢子形态及其与该亚科植物的系统分类和演化关系进行了讨论，为水龙骨科的系统分类及孢粉学研究提供了资料。

A family of smut fungi having a simple promycelium bearing the spores in an apical cluster.

腥黑粉菌一科特点是简单先菌丝顶上丛生孢子。

Important spore and angiospermae pollen fossils such as Asterisporites,Cranwellia,Xinjiangpollis,Beaupreaidites and Quantonenpollenites have been obtained from the the upper part of the Member 4 of Quantou formation. They are Late Cretaceous in age. The reasonable geologic time of the upper Quantou formation may be later than Cenomanian deduced by the age of the upwards spore and angiospermae pollen fossils and the palynological assemblages.

根据泉四段顶部地层中一些具有重要时代意义的孢子和被子植物花粉化石Asterisporites，Cranwellia，Xinjiangpollis，Beaupreaidites，Quantonenpollenites等在世界各地的地史分布及与已知孢粉组合的比较，得出泉头组上部的地质时代可能不早于塞诺曼期。

All the other genera of this family, except for Onychium and Cryptogramma, have this pattern of spores.

除金粉蕨属Onychium和珠蕨属Cryptogramma外，该科其他属的植物都具此类型孢子。

Morphology of sexual reproduction abortion in'High Noon', a distant hybridization cultivar of tree peonies(P.delavayi var. lutea×P. suffruticasa), was systematically investigated with light microscopy and cross. The results indicated that:(1)The stamens matured earlier than the gynoecia and pollens dispersed at the early stage of anthesis but the rate of normal 2-celled pollens were merely 2.41%.

采用光镜和杂交等方法对牡丹远缘杂交一代品种'正午'有性生殖败育进行系统形态学观察发现：(1)雄蕊较雌蕊先成熟，初花期即散粉，正常2-细胞花粉仅占2·41%，且花粉在多种培养液中、在自身和其它两种柱头上均不萌发；柱头在谢花期大量分泌粘液，进入最佳授粉状态；(2)同一胚珠中多个大孢子母细胞减数分裂高度不同步，胚囊发育与受精延迟，部分胚乳游离核在细胞化时期分裂异常；(3)自花及品种内异花授粉不结实，天然授粉结实率为0·053‰~0·130‰。

Any of various fungi of the genus Lycoperdon and related genera, having a ball-shaped fruiting body that when pressed or struck releases the enclosed spores in puffs of dust.

松勃菌任一种松勃菌属及相关属类的任几种真菌，有受压或受挤后以粉雾状释放内部孢子的球形子突体

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。