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枣树干腐病病原菌的鉴定 总被引:4,自引:0,他引:4
对山西省枣树上发生的一种新病害进行了调查和病菌分离与培养研究。通过形态学特征观察和rDNA ITS序列分析,证明该病菌为葡萄座腔菌Botryosphaeria dothidea的无性阶段Fusicoccum aesculi。 相似文献
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The genus Papulaspora was named by Preuss in 1851 based on the characters of “bulbils” (papulospores) and interpreted by Hotson (1912,1917) as consisting of sterile mycelia with various kinds of “bulbils”. 25 Papulaspora species were described by Hotson in detail (1912, 1917), among them 10 species were acknowledged by Weresub & LeClair (1971) and 20 species were recorded in the Dictionary of the Fungi (2003). The ecology of Papulaspora species is not well known, most species were isolated from dung, decaying plant material or soil. 相似文献
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利用热变性温度法测得球壳孢目5属14种19个菌株DNAG+Cmol%的变化范围为48.08~53.7平均值为51.12,与文献报道的丝孢菌类的平均值接近,也与子囊菌的平均值相差不大,提示该类群的种类及其与大多数丝孢菌间在系统演化上似具有一定的同源性,与形态分类对半知菌的处理相吻合,也为其有性阶段大多属子囊菌这一事实提供了佐证;各属,种GC值接近,且相互璋有交叉,种内菌株间差异小于2%,方差分析显示 相似文献
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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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东北地区保护地土壤真菌多样性研究Ⅰ 总被引:1,自引:1,他引:0
2003年4月至2004年7月在辽宁、吉林、黑龙江三省的20多个市县共采集不同年限的保护地土样150多份,采用稀释平板法在孟加拉红培养基上分离近千个真菌菌株,通过纯化培养和形态鉴定,将各菌株鉴定到种。本文报道了部分可培养的子囊菌和有丝分裂孢子真菌的研究结果,其中子囊菌5属6种,包括两个中国新记录种(Lophotrichus brevirostratus和Microascus cinereus)和一个国内记录但未正式发表的子襄菌(Emericellopsis terricola);有丝分裂孢子真菌7属10种。 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