germ tube

The process of decorticated seeds germination and haustorium formation is as follws: sprouting protuberance ( tapered shape) formation of germ tube ( slightness) germ tube growing widely intumescence in proximal end attenuation in acropetal end.

去种皮种子的种子萌发和初生吸器形成为露白突起（圆锥状）芽管（细长）芽管增粗基部膨大顶端变细的过程。核型胚乳，胚乳发育中后期胚囊合点端存在胚乳吸器；

Swollen tip part of germ tube with defective or reduced infection;

芽管顶端膨大、侵染能力降低或丧失；

During germination, a very short germ tube is produced and basidiospore grows as a budding way.

萌发时产生一个很短的芽管，并以芽殖方式产生担孢子。

The product of this enzyme to puccinia triticinia germ tube was also tested by DNS method and it proved that this product is a reducing sugar.

而且对该酶作用于叶锈菌芽管的产物用DNS法检测，发现该产物是一种还原糖。

About 60% conidia germinated to germ tube or globose appressorium for invasion within 3-5 h after attachment.

结果表明：附着于虫体表面的初生分生孢子在3~5h后即有60%以上的萌发率，萌发的孢子形成芽管或产生球形或棍棒状的附着胞；

Conidiophore was sensitive to light. Total darkness was good for germination and growth of germ tube.

孢子对光照敏感，全黑暗有利于孢子萌发和芽管及菌丝的伸长。

This study suggests that in the host surface teliospore may also produce a short germ tube, continue to produce dual-core mycelium which germinated to form urediniospores, then urediniospores germinate and infect host plants repeatedly.

本研究认为锈菌冬孢子可能也会在寄主表面萌发产生一个生长的短芽管，继续萌发产生双核菌丝体形成夏孢子，夏孢子萌发继续反复侵染寄主植物。