膜盘菌属四个中国新记录种

报道了膜盘菌属Hymenoscyphus的4个中国新记录种:(参照)山楂膜盘菌H cf.crataegi、德氏膜盘菌Hdehlii、油滴膜盘菌H macroguttatus和类盾膜盘菌H scutuloides均为在模式产地以外地区首次发现,提供了每个种的详细描述和宏微观特征图示.基于ITS序列分析了这些种与膜盘菌属其他种的关系.     

柔膜菌目一个新种和三个中国新记录种（英文）

报道了柔膜菌目1个新种——镰孢状胶被盘菌Crocicreas fusarioides和3个中国新记录种——迪氏膜盘菌Hymenoscyphus dearnessii、韩国膜盘菌H.koreanus和叶轴生粒毛盘菌Lachnum rachidicola。提供了各个种的特征描述和图示,以及韩国膜盘菌和叶轴生粒毛盘菌的DNA序列数据。     

Lanzia berggrenii及其相关种的系统发育地位(英文)

系统发育分析结果表明,尽管Lanzia berggrenii能在寄主中形成基物子座,但与膜盘菌属的核心种关系较近,而与蜡盘菌科成员关系较远,应该归属于膜盘菌属。在广义的膜盘菌属的系统树中该种及在新西兰发现的4个新种构成一个单系群,分别命名为Hymenoscyphus haasticus,H. kiko,H.ohakune和H.waikaia。它们的共同特征:基物均为南青冈叶片,侧丝顶端分枝形成类似囊层被的结构,覆盖于子实层上部。Lanzia berggrenii var.metrosideri应为膜盘菌属中一个独立的种,即Hymenoscyphus metrosideri。     

膜盘菌属—新种和—中国新记录种(英文)

报道了膜盘菌属Hymenoscyphus 1个新种和1个中国新记录种。新种椭孢膜盘菌H.ellipsoideus来自云南,以其白色、具柄的子囊盘,J+、大小为70–85×8–14.5?m的子囊,椭圆形、具双油滴、大小为14.4–16.7×4–5.5?m的子囊孢子,腐烂的阔叶树叶脉上生为鉴别性特征;中国新记录种变色膜盘菌H.varicosporoides采自河南。提供了每个种宏观和微观特征的详细描述和图示。     

柔膜菌科新分类群及中国新记录种（英文）

对来自我国不同地区的柔膜菌科真菌进行了分类研究,发现3个新种(新疆绿胶杯菌、多隔拟散胞盘菌、河南新胶鼓菌)和1个新变种(落叶松芽孢盘菌小囊变种)以及3个未命名种,分别属于绿散胞盘菌属(Chlorencoelia sp.8357)、斯特罗盘菌属(Strossmayeria sp.1683)和丝绒盘菌属(Velutarina sp.4115),报道2个中国新记录种(卷边盘菌、泪滴暗被盘菌)。对上述分类群进行了详细的形态解剖学描述和图解,对新分类群与相近种的区别进行了讨论。     

南方铁杉上斑痣盘菌科一新种——铁杉小双梭孢盘菌

本文报道了在安徽黄山采自南方铁杉(Tsuga tchekiangensis Flous)针叶上的小双梭孢盘菌属一新种,即铁杉小双梭孢盘菌(Bifusella tsugae H.S.Cao et C.L.Hou)对新种作了汉文和拉丁文描述。模式标本保藏于安徽农业大学森林保护教研室。     

祁连山子囊菌——盘菌纲和锤舌菌纲

研究了采自甘肃省祁连山的133份盘菌标本,对它们进行了详细的形态学观察,鉴定出45个种,它们隶属于粪盘菌科、裸盘菌科、地锤菌科、胶质盘菌科、柔膜菌科、马鞍菌科、毛盘菌科（新拟）、软盘菌科（新拟）、火丝菌科、斑痣盘菌科和寡囊盘菌科,包括4个新种（祁连山缘刺盘菌、祁连山粪裸盘菌、祁连山新胶鼓菌和华肿长毛盘菌）、3个中国新记录种（秆膜盘菌、硫磺色膜盘菌和短孢索氏盘菌）。文中详细比较了新种与相近种的形态差别。     

皮下盘菌属的两个新分类单元

报道中国黄山产皮下盘菌属二新种:生于满山红Rhododendron mariesii叶片上的满山红皮下盘菌Hypoderma rhododendri-mariesii sp. nov.和生于野珠兰Stephanandra chenensis枝干上的野珠兰皮下盘菌H. stephanandrae sp. nov.。对它们作了拉丁文特征简介、汉文描述和图解。模式标本存放在安徽农业大学森林保护教研室(AAUFP),合肥。     

我国南部地区一些针叶树上的斑痣盘菌

本文报道从我国南部地区针叶树上采集的斑痣盘菌,共5属9种。其中小双梭孢盘菌属(Bifusella v.Hhn.)是我国新记录属;杉生小双梭孢盘菌Bifusella cunninghamiicolaKorf & Ogimi)和落叶松散斑壳(Lophodermium laricinum Duby)为国内新记录种。对新记录属、种作了简要记述,记载了已知种的寄主新记录、地理新分布和生态习性,并对一些种的同物异名问题进行了必要的讨论。     

葡萄孢盘菌属一新种——蚕豆葡萄孢的有性阶段

本文报道了葡萄孢盘菌属的一个新种:蚕豆葡萄孢盘菌(Botryotinia fabae Lu et T.H.Wu sp.nov.)即蚕豆葡萄孢的有性阶段;并报道了新种子囊盘形成过程;新种有汉文和拉丁文描述。     

柔膜菌属(柔膜菌目)新种及中国新记录种

本文对采自中国温带部分省区的柔膜菌属Hymenoscyphus标本进行了研究。文中报道新种一个 —— 井冈柔膜菌Hymenoscyphus jinggangensis,中国新记录种三个,它们是无须柔膜菌Hymenoscyphus imberbis, (参照)闪烁柔膜菌H. cf. nitidulus 以及该属的一个未命名种。新种模式标本保藏在中国科学院微生物研究所菌物标本馆。     

Lignicolous freshwater Ascomycota from Thailand: Hymenoscyphus varicosporoides and its Tricladium anamorph

A Tricladium anamorph for the discomycete Hymenoscyphus varicosporoides was established in culture from both conidia and ascospores collected in KhaoYai National Park, Thailand, and is compared with Tricladium indicum and T. marylandicum. Hymenoscyphus varicosporoides is compared with Cudoniella indica.     

Development of a multiplex PCR assay to discriminate native Hymenoscyphus albidus and introduced Hymenoscyphus fraxineus in Britain and assess their distribution

Two Hymenoscyphus species are associated with ash (Fraxinus) in Europe; the recently arrived ash dieback pathogen Hymenoscyphus fraxineus and apparently native Hymenoscyphus albidus. However, in parts of Europe invasive H. fraxineus appears to be replacing H. albidus which may, therefore, face extinction. We designed primers based on calmodulin sequences for use in singleplex and multiplex PCR assays to detect and discriminate between these two morphologically very similar species. The multiplex assay was tested against 50 isolates and 26 apothecial field samples of H. albidus/H. fraxineus from Europe and Asia, plus isolates of Hymenoscyphus fructigenus, Hymenoscyphus koreanus and Hymenoscyphus occultus. Use of the assay confirmed both H. albidus and H. fraxineus were present across southern Britain between 2014 and 2015, with H. albidus detected at eight geographically distinct sites. The sensitivity, specificity and potential applications of the multiplex assay are discussed.     

Viridin-like steroids from Hymenoscyphus pseudoalbidus

Three furanosteroids were isolated from the ash dieback causing fungus Hymenoscyphus pseudoalbidus along with the known compounds viridiol and demethoxyviridiol. The compounds were characterized by 1D and 2D NMR spectroscopy, LC–HRMS and polarimetry.     

Saprobic characteristics of three fungal taxa from ericalean roots and their association with the roots of Rhododendron groenlandicum and Picea mariana in culture

Simultaneous associations among ectotrophic and ericoid mycorrhizal hosts and their mycorrhizal fungi are expected in boreal bogs where ericaceous shrubs and conifers coexist rooted in an organic matrix dominated by Sphagnum mosses. We were thus prompted to examine, in vitro, the abilities of three ericoid mycorrhizal fungi [ Hymenoscyphus ericae, Oidiodendron maius, and Variable White Taxon (VWT)] to associate with Picea mariana (Pinaceae), with both P. mariana and Rhododendron groenlandicum (Ericaceae) simultaneously, and to decompose Sphagnum fuscum. Hymenoscyphus ericae and VWT developed an intracellular association with roots of P. mariana and with roots of R. groenlandicum. Two strains of O. maius did not form typical infection units in R. groenlandicum, nor did they colonize the root cells of P. mariana. Mass losses incurred by sterilized S. fuscum plants inoculated with these three taxa indicated that O. maius could be more efficient as a free-living saprophyte on this material than either H. ericae or VWT and may in part explain why atypical associations with the roots of ericaceous hosts were formed.     

CULTURAL FEATURES AND IMPERFECT STAGE OF HYMENOSCYPHUS CAUDATUS

Ascosporic cultures were obtained from spore shoots of Hymenoscyphus caudatus growing abundantly on leaves of Acer rubrum. In determining the proper medium, light, and temperature for growth, an Idriella conidial stage was discovered for this fungus. Attempts to induce apothecia to develop under artificial conditions proved unsuccessful.     

The invasive ash dieback pathogen Hymenoscyphus pseudoalbidus exerts maximal infection pressure prior to the onset of host leaf senescence

Shoot dieback disease of European ash caused by the ascomycete Hymenoscyphus pseudoalbidus threatens ash on a continental scale. A spore sampler placed in a diseased ash forest in Southern Norway, coupled with microscopy and DNA-based fungal species-specific real-time PCR assays, was employed to profile diurnal and within-season variation in infection pressure by ascospores of H. pseudoalbidus and the potentially co-existing non-pathogenic Hymenoscyphus albidus. Hymenoscyphus pseudoalbidus was found to be predominant in the stand. Massive simultaneous liberation, by active discharge of pathogen ascospores in the morning, peaked in mid-Jul. to mid-Aug. Accumulation of pathogen DNA on leaflets of current-year leaves reached a high level plateau phase before appearance of autumn coloration, suggesting that pathogen establishment in leaves is terminated before the onset of leaf senescence.     

Nitrification in vitro by a range of filamentous fungi and yeasts

A wide range of fungi including yeasts, growing on Czapek Dox medium, nitrified added ammonium and the ammonium released by urea hydrolysis. Phanerochaete chrysosporium and Hymenoscyphus ericiae were the only fungi tested which failed to nitrify. A soil yeast (isolate 1) was the most active nitrifier of ammonium in vitro , forming 0·80 μg nitrate mg^-1 biomass over the 7 d incubation period.