大分生孢子

It shows that BTH and its metabolites have no immediate activity against pathogens and are in accordance with criterion of chemical elicitor.

组织病理学研究表明，BTH处理小麦后接种，并不抑制分生孢子的萌发和附着胞的形成，只是菌落的发展在很大程度上受到了抑制，表现为畸形附着胞数目增加、侵入率降低、侵入速率减小、菌落扩展速率减小、产孢率降低。

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。

The above results can summarize the function of STK1: insignificant effect on mycelium development and growth but related to the pigment accumulation in hypha; key factor regulating the conidial development; related to the HT-toxin activity and pathogenicity.

结论推测，STK1基因对玉米大斑病菌菌丝的生长发育没有影响，但可能与菌丝中色素等物质的积累有关，并调控病菌分生孢子的发育、HT-毒素的活性和致病性。

In this paper, the biological characteristics of florescence, spikelet and inflorescences structure, morphogenesis formation of inflorescence, megasporogenesis and the development of female gametophytes were studied systematically by using anatomy structure, scanning electron microscopic and paraffin section methods. The results were as followed:(1) Phyllostachys praecox was the bamboo flowering fragmentarily; the cultivation changed the characteristic of flowering; the plantlets of flowering were complex and splitted into three kinds: the plantlet flowering before continued flowering; the plantlet flowering before stopped flowering and the plantlet changed into flowering. The inflorescence of Ph. praecox was indefinite inflorescence or called false inflorescence, and actually it was flower stress structure. Its basal unit was pseudospikelet with two kinds: apical spikelet and lateral spikelet. The floret had one lemma, one pelea, three stamens, one pistil and three lodicules.

本研究综合运用形态解剖学、扫描电镜、石蜡切片等技术手段，对雷竹花期生物学特性、小穗与花序构造、花序形态建成过程、大孢子发生与雌配子体发育等进行了较为系统的研究，结果表明：(1)雷竹为零星开花竹种，耕作条件对其开花特性具有重要影响；开花植株类型复杂多样，可以分为以前开过花现在继续开花、以前开过花现在停止开花以及以前未开过花现在转为开花等3种类型；雷竹花序为无限制花序或称&假花序&，实为花枝结构，基本单位为&假小穗&；假小穗有顶生和侧生之分；小花具内外稃各1枚，雄蕊3，雌蕊L，另具3枚大小不等之鳞被。

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。