Rélová Martina
Department of Plant Taxonomy & Biosystematics, Institute of Botany, Academy of Science, Průhonice 252 43, Czech Republic.
Mycologia. 2007 Sep-Oct;99(5):723-32.
The new genus Barbatosphaeria is described for a perithecial ascomycete known as Calosphaeria barbirostris occurring on decayed wood of deciduous trees under the periderm. The fungus produces nonstromatic perithecia with hyaline, 1-septate ascospores formed in unitunicate, nonamyloid asci. Anamorphs produced in vitro belong to Sporothrix and Ramichloridium with holoblastic-denticulate conidiogenesis; conidiophores of the two types were formed in succession during the development of the colony. Phylogenetic analyses of nuLSU rDNA sequences indicate that this fungus is distinct from morphologically similar Lentomitella, tentatively placed in the Trichosphaeriales. It groups with freshwater Aquaticola and Cataractispora and terrestrial Cryptadelphia in maximum parsimony analysis; the same grouping but without Cryptadelphia was inferred from Bayesian analysis. Cultivation, morphology and phylogenetic studies of the nuLSU rDNA support the erection of a new genus for C. barbirostris.
新属Barbatosphaeria是针对一种被称为Barbirostris calosphaeria的子囊壳子囊菌描述的，该菌出现在落叶树木腐烂木材的周皮之下。该真菌产生非子座性子囊壳，具透明的、1分隔的子囊孢子，形成于单囊壁、非淀粉质的子囊内。体外产生的无性型属于Sporothrix和Ramichloridium，具有全壁芽生齿突式产孢；在菌落发育过程中，两种类型的分生孢子梗相继形成。对nuLSU rDNA序列的系统发育分析表明，该真菌与形态相似的Lentomitella不同，暂置于毛球壳菌目。在最大简约分析中，它与淡水的Aquaticola和Cataractispora以及陆生的Cryptadelphia聚在一起；贝叶斯分析推断出相同的聚类，但不包括Cryptadelphia。对nuLSU rDNA的培养、形态学和系统发育研究支持为Barbirostris calosphaeria建立一个新属。
