竹黄结构的光学显微镜和扫描电镜观察

OBSERVATION OF MORPHOLOGY AND STRUCTURE OF SHIRAIA BAMBUSICOLA UNDER LIGHT AND SCANNING ELECTRONIC MICROSCOPE

Under light and scanning electronic microscope it has been foundthat the flash-shaped perithecia of Shiraia bambusicola P. Henn line onthe outsides of their stroma made of prosenbchyma and pseudoparac-hyma, and stand in curved rows. The ostiotes of the perithecium areupward and there are no periphysis in it. Its central chabers of theperithecium, paraphysis are absent. The asci, the basat growth, lineup vertically and parallel in the perithecium. Each ascium containsonly a row of six ascuspores, on the surface of ahich there are shu- ttle-like and vertical-tranverse eystidium. The releasing way of the ascipertains to the type ostile. Also found that the small holes at the tipsof asci and the vertical-tranverse Cystidium of ascuspores form Cyto-logical maps of cells at different development stage in a perithecium(Plate I. 9, 10, 11 and 12). At conidium stage, Shiraia bambusicolaP. Henn produces phialospores in its pycnidia which are irregular inthe shapes and situate in the inner part of the stroma's surfaceswhich are close to host bamboo. The morphology of phialospores aresimilar to that of ascuspores, but their volumas are somewhat bigger,and their tips pharper than ascuspore's.