中国东部暖温带地区土壤中的皮司霉属（丝孢纲）真菌

报道从中国东部暖温带地区诸省(市)土壤中分离到的皮司霉属Pithomyces真菌的两个新种:长棒孢皮司霉Pithomyces longiclavisporus和淡色皮司霉Pithomyces pallidus,及两个中国新记录种:卡罗皮司霉Pithomyces karoo和帕夫皮司霉Pithomyces pavgii;对另外三个已知种亦作了分离地点和生境的引证。研究过的标本(干制培养物)与活菌种保存在山东农业大学植物病理学标本室(HSAUP)。     

中国东部暖温带地区土壤中的皮司霉属（丝孢纲）真菌

报道从中国东部暖温带地区诸省（市）土壤中分离到的皮司霉属Pithomyces真菌的两个新种：长棒孢皮司霉Pithomyces longiclavisporus和淡色皮司霉Pithomyces pallidus,及两个中国新记录种：卡罗皮司霉Pithomyces karoo和帕夫皮司霉Pithomyces pavgii;对另外三个已知种亦作了分离地点和生境的引证。研究过的标本（干制培养物）与活菌种保存在山东农业大学植物病理学标本室（HSAUP）。     

中国土壤暗色丝孢真菌2个新记录种

从采自四川省的土壤标本中分离到2个中国新记录种——埃利斯皮司霉(Pithomyces ellisii)和黑小枝霉(Virgaria nigra),对二者进行了较详细的形态学描述并绘图。研究菌株的干制培养物标本与活菌种均存放在山东农业大学植物病理学标本室(HSAUP)。     

中国皮司霉属分类研究 I

报道了采集自我国境内的皮司霉属Pithomyces 8个新种:山葵皮司霉P.arecastri sp.nov.,串珠皮司霉P.cateniformis sp.nov.,椭圆皮司霉P.ellipticus sp.nov.,蠕形皮司霉P.helminthosporioides sp.nov.,长柄皮司霉P.longipes sp.nov.,倒梨形皮司霉P.obpyriformis sp.nov.,络石皮司霉P.trachelospermi sp.nov.,和羊蹄甲皮司霉P.variegatae sp.nov.。2个中国新记录种:油棕生皮司霉P.elaeidicola和垫状皮司霉P.pulvinatus。新种分别进行了详实的拉丁文和中文描述并附图。研究标本(自然标本和干制培养物)保存于山东农业大学植物病理系标本室(HSAUP)。     

Influence of inoculation with a Trichoderma bio‐inoculant on ectomycorrhizal colonisation of Pinus radiata seedlings

Trichoderma species, through mechanisms such as mycoparasitism, antibiosis, induced resistance and competition, are able to suppress the growth and activity of soil microbes and therefore have the potential to influence ectomycorrhizal (ECM) fungal colonisation. ECM colonisation potential of Pinus radiata seedlings inoculated with the commercially available Trichoderma species bio‐inoculant, ArborGuard?, was investigated in a commercial containerised nursery setting and in a separate glasshouse experiment. Application of ArborGuard? to P. radiata seedlings in both the containerised nursery and glasshouse experiment had no detrimental effect on the ability of the naturally occurring ECM fungi to colonise the seedlings. Thelephora terrestris was the only ECM species colonising the P. radiata root tips in the containerised system while Tomentella ellisii was the dominant species found colonising the P. radiata root tips in the glasshouse experiment. No seedling growth promotion was observed with the addition of ArborGuard?. The results show that the Trichoderma bio‐inoculant ArborGuard? does not affect ECM colonisation of P. radiata seedlings by Th. terrestris and T. ellisii in a containerised nursery system.     

中国东部暖温带地区土壤中的皮司霉属（丝孢纲）真菌

报道从中国东部暖温带地区诸省（市）土壤中分离到的皮司霉属 Pithomyces 真菌的两个新种：长棒孢皮司霉 Pithomyces longiclavisporus和淡色皮司霉Pithomyces pallidus,及两个中国新记录种：卡罗皮司霉 Pithomyces karoo和帕夫皮司霉Pithomyces pavgii;对另外三个已知种亦作了分离地点和生境的引证。研究过的标本（干制培养物）与活菌种保存在山东农业大学植物病理学标本室（HSAUP）。     

Effects of weather conditions on selected airborne fungal spores in the southern part of the state of Enugu,Nigeria

A study of airborne fungal spore was carried out at nine locations in the southern part of the state of Enugu, Nigeria, from March 2005 to February 2006. The aim of the study was to ascertain the variations in selected fungal spore types at the sites owing to weather conditions. The variation in airborne fungal spores of 14 taxa was studied using modified Tauber pollen traps including Alternaria, Corynespora, Curvularia, Drechslera type, Endophragmiella, Botryodiplodia, Ganoderma, Gliomastrix, Nigrospora, Pithomyces, Spegazzinia, Sporidesmium, Tetraploa and Ustilago. The frequency of the spore types recorded showed considerable variation. The highest spore counts were recorded in July, June and October. The highest numbers of fungal spores were recorded during the rainy season (June–October) to early dry season (November–December). The peak of occurrence of most selected fungal spore types was July. The highest percentages of fungal spores were documented at the recording stations Mgbowo Junction, UNTH Ituku Ozalla and Oji River Express Junction. Spearman’s correlation analyses were performed for the monthly amounts of the fungal spore types and monthly meteorological factors. The numbers of Curvularia, Nigrospora and Sporidesmium was significantly correlated with relative humidity, while those of Endophragmiella, Pithomyces and Nigrospora were significantly correlated with temperature. A significant correlation was also found between the number of Nigrospora spores and light intensity and Sporidesmium spores and wind velocity. Relative humidity and temperature seem to be the most important weather conditions affecting the frequency of the selected spore types in the atmosphere.