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Phylogeny and ecology of the ubiquitous saprobe Cladosporium sphaerospermum, with descriptions of seven new species from hypersaline environments.
Studies in Mycology ( IF 16.5 ) Pub Date : 2007-01-01 , DOI: 10.3114/sim.2007.58.06
P Zalar 1 , G S de Hoog , H-J Schroers , P W Crous , J Z Groenewald , N Gunde-Cimerman
Affiliation  

Saprobic Cladosporium isolates morphologically similar to C. sphaerospermum are phylogenetically analysed on the basis of DNA sequences of the ribosomal RNA gene cluster, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S rDNA (ITS) and the small subunit (SSU) rDNA as well as beta-tubulin and actin gene introns and exons. Most of the C. sphaerospermum-like species show halotolerance as a recurrent feature. Cladosporium sphaerospermum, which is characterised by almost globose conidia, is redefined on the basis of its ex-neotype culture. Cladosporium dominicanum, C. psychrotolerans, C. velox, C. spinulosum and C. halotolerans, all with globoid conidia, are newly described on the basis of phylogenetic analyses and cryptic morphological and physiological characters. Cladosporium halotolerans was isolated from hypersaline water and bathrooms and detected once on dolphin skin. Cladosporium dominicanum and C. velox were isolated from plant material and hypersaline water. Cladosporium psychrotolerans, which grows well at 4 degrees C but not at 30 degrees C, and C. spinulosum, having conspicuously ornamented conidia with long digitate projections, are currently only known from hypersaline water. We also newly describe C. salinae from hypersaline water and C. fusiforme from hypersaline water and animal feed. Both species have ovoid to ellipsoid conidia and are therefore reminiscent of C. herbarum. Cladosporium langeronii (= Hormodendrum langeronii) previously described as a pathogen on human skin, is halotolerant but has not yet been recorded from hypersaline environments.

中文翻译:

无处不在的腐殖质枝孢菌的系统发育和生态学,描述了来自高盐环境的七个新物种。

基于核糖体 RNA 基因簇的 DNA 序列,包括内部转录间隔区 ITS1 和 ITS2、5.8S rDNA (ITS) 和小亚基 (SSU) rDNA,对形态学上与 C. sphaerospermum 相似的腐生枝孢菌进行系统发育分析以及β-微管蛋白和肌动蛋白基因内含子和外显子。大多数 C. sphaerospermum 类物种表现出耐盐性作为反复出现的特征。Cladosporium sphaerospermum 的特点是几乎球形分生孢子,在其前新型培养的基础上重新定义。Cladosporium dominicanum、C. psychrotolerans、C. velox、C. spinulosum 和 C. halotolerans,都具有球形分生孢子,是基于系统发育分析和神秘的形态和生理特征的新描述。Cladosporium halotolerans 从高盐水和浴室中分离出来,并在海豚皮肤上检测到一次。Cladosporium dominicanum 和 C. velox 是从植物材料和高盐水中分离出来的。Cladosporium psychrotolerans 在 4 摄氏度但不能在 30 摄氏度下生长良好,而 C. spinulosum 具有显着装饰的分生孢子和长指状突起,目前仅在高盐水中已知。我们还新描述了来自高盐水的 C. salinae 和来自高盐水和动物饲料的 C. fusiforme。这两个物种都有卵形到椭圆形的分生孢子,因此让人联想到 C. herbarum。Cladosporium langeronii (= Hormodendrum langeronii) 先前被描述为人类皮肤上的病原体,具有耐盐性,但尚未在高盐环境中记录到。
更新日期:2019-11-01
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