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人工培养条件下,用光学显微镜和透射电子显微镜对球壳孢目(Sphaerosidales)的Ascochyta,Phyllosticta,Phomopsis,Septoria四属进行个体发育研究,明确了其产孢方式:Ascochyta和Phyllosticta为内壁芽生瓶梗式;Phomopsis为全壁芽生瓶梗式;Septoria为全壁芽生合轴式,这一结果为属级分类提供了可靠的依据。产孢方式是属内共同具有的稳定特征,分生孢子的形成方式类型、产孢细胞及分生孢子的形态是划分属的首要标准。以寄主植物属为基础确定的同属大多数种在个体发育上无明显差别,分生孢子的形态及大小是分种的一个重要依据。 相似文献
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InverstigationofthediseasesofcultivthedRosa‘hybrida’InagreenhousenearthecampusofShenyangAgriculturalUniversityinNovember,1996hasresultedinthediscoveryofaperonosporaspeciespreviouslyunrecordedinChina.Thefunguscausedseriousdamagetosome2000roseplants.ItwasidentifiedasPeronosporaSparsaBerk.exBerk.&Broome.peronosporasparsaBerk.exBerk.exBerk.&Broome;Gard.ChronSer.1.14:308,1862;Saccardo.Syll.Fung.7:263,188aDelowerfeatesnn13t)tsealing山sCdbmdiemons,leafspotslrregulapchlorosls,lat… 相似文献
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Clonostachys phyllophila and Clonostachys rogersoniana were isolated from rhizosphere soil of Allium tuberosum in Chaoyang, Liaoning Province. It is the first report of the genus in China. The species was described morphologically and illustrated in this paper, the culture was stored in the Culture Collection of Liaoning Center of Culture Collection (LCCC). 相似文献
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