孢子体

This paper sums up the study history and present situation about moss spore germination and protonema developmemt, clarifying the important scientific significance.

本文综述了国内外对藓类植物的孢子萌发和原丝体发育过程的研究历史和现状，阐明了此项研究的重要科学意义。

Spore germination and protonema development have been considered to be one of the important characters in the phylogeny and evolution of major groups of the bryophytes and other plant groups.

孢子萌发与原丝体发育对于研究苔藓植物以及其他植物类群的系统发育与系统演化有着十分重要的作用。

In plant kingdom, having a protonema stage after spore germination is a specific character of moss and a marked difference compared with other plant group.

在植物界，孢子萌发后的原丝体发育阶段是藓类植物所独有的特征，也是该类群区别于其它类群的一个显著特点。

Bryophytes ; Spore germination ; Protonema development

苔藓；孢子萌发；原丝体发育

A protozoan, especially of the class Sporozoa, in the active stage of its life cycle.

营养子，滋养子，营养体尤指孢子纲的处于其生命周期活跃期的原生动物

Arundinacea in vitro. After cultivation on PDA at 26℃ under continuous fluorescent light for 6 days, the colonies were black green and the hyphae were septate. Spore size was 30.6~17.0 μm×10.9~13.6 μm, mostly with four-septa. The central cell was dark and the third cell from the base was the largest. The DNA sequence of ribosomal ITS of the isolates was found to match 100% with an ITS sequence of Curvularia affinis in GenBank. This is the first report of leaf spot caused by C. affinis on F.

结果表明：该病原菌能侵染高羊茅，在26℃和光照下，在PDA培养基上培养6d后菌落呈墨绿色，菌丝有隔，分生孢子有4个横隔膜，平均大小为30.6~17.0μm×10.9~13.6μm，中部3胞暗色，第3个细胞基部膨大；其核糖体DNA-ITS序列分析表明，该菌与GenBank中近缘弯孢的同源性是100%；结合形态学特征和致病性测定，认为该菌为C。

Comparative studies of embryology of Camellia : sporogenesis andgametogenesis of C.oleifera, C.japonica and C.ptilophylla were watched carefullyunder LM by means of paraffin slides.

山茶属的比较胚胎学研究：通过石蜡切片，用光学显微镜观察油茶、山茶和毛叶茶C.ptilophylla的大小孢子的发生和雌雄配子体的发育；全面总结山茶属的胚胎学资料，从比较胚胎学角度探讨山茶属的系统学问题。

In this paper, we overviewed the relationship between male gametophytic selection and phenotype of its sporophyte, genetic differentiation and its application in plant genetic improvement, so it would be provided reference information for correlated research of male gametophytic selection.

本文主要概述雄配子体选择与孢子体表型的关系、遗传分化效应及其在植物遗传改良中的应用，以期为雄配子选择相关研究提供参考

The optimum temperatures for mycelial growth, sporulation and spore germination of C. gloeosporioides was 28℃, 28℃, and 28℃, respectively and those of C.

胶孢炭疽菌菌丝体生长、产孢和孢子萌发的最适温度都为28℃，黑线炭疽菌的分别为25，28和25℃。

The tapetum cells oftrisomic 7 and 10 showed abnormal phenomenon at meiosis,but trisomic 7 recovered normality at other periods.

而10号三体的绒毡层虽在四分体时期表现正常，但在小孢子时期又表现了异常，并且花粉全部败育。

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。