Freshwater fungi from the River Nile, Egypt
Freshwater fungi from the River Nile, Egypt
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DOI：
10.5943/mycosphere/7/6/4
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发表时间：
2016-01-01
期刊：
影响因子：
14.6
通讯作者：
Abdel-Aziz, F. A.
中科院分区：
文献类型：
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作者：
Abdel-Aziz, F. A.
这项研究代表了埃及尼罗河淡水真菌的首次公开数据。关于埃及和中东地区淡水子囊菌的地理分布及其无性形态的知识是有限的。从400份淹没样品的959份真菌标本中鉴定出42种有性子囊菌、55种无性子囊菌和2种担子菌，共99个分类群。样本于2010年12月至2014年8月期间的冬季和夏季在埃及索哈格的尼罗河随机采集。冬季收集了58个分类群（性子囊菌22个，无性子囊菌36个），夏季收集了60个分类群（性子囊菌25个，无性子囊菌33个，担子菌2个）。在记录的99个分类群中，有50个是埃及的新记录，包括5个新属和30个新种。前几篇文章报道了3个新属和10个新种。两个季节记录的真菌明显不同，冬季和夏季收集的真菌只有19种。无性真菌在两季真菌群落中占主导地位。基于LSU和SSU rDNA基因的分子数据确定了33种植物的分类位置。冬季和夏季采集的主要真菌为水草（Lolia aquatica），占14.2%。其他优势真菌为：Ceratorhiza sp.（19.5%）和Limnoperdon sp.（13%）。这两种担子菌在夏季是最常见的分类群，而在冬季则不存在。常见的真菌有：大紫锥虫（9.2%）、大紫锥虫（8%）、银样盘孢子虫（5.5%）、木犀洞虫（5.5%）和棉球虫（5%）。两个季节记录的种属分别为Dictyosporium（6种）、monodictys -类（3种）、Aniptodera（3种）、Lolia（3种）、Podospora（3种）、Zopfiella（3种），Achaetomium、Annulatascus、Lentithecium、Linocarpon、Cirrenalia、Ciliochora、coleophhoma、Colletogloeum、Clohesyomyces、Periconia、Pseudorobillarda和Stagonospora各2种。
This study represents the first published data of freshwater fungi from the River Nile in Egypt. Knowledge concerning the geographic distribution of freshwater ascomycetes and their asexual morphs in Egypt and in the Middle East is limited. Ninety-nine taxa representing 42 sexual ascomycetes, 55 asexual taxa and two basidiomycetes were identified from 959 fungal collections recorded from 400 submerged samples. Samples were randomly collected from the River Nile, in Sohag, Egypt in the winter and summer between December 2010 and August 2014. Fifty-eight taxa (22 sexual ascomycetes and 36 asexual taxa) were collected during winter, while 60 taxa (25 sexual ascomycetes, 33 asexual taxa and two basidiomycetes) were collected in summer season. Of the 99 taxa recorded, 50 are new records for Egypt, including five new genera and 30 new species., Three new genera and ten new species were described in previous articles. Fungi recorded from the two seasons were markedly different, with only 19 species common to both winter and summer collections. Asexual fungi dominated the fungal community during the two seasons. Taxonomical placements of 33 species were confirmed by molecular data based on LSU and SSU rDNA genes. Lolia aquatica (14.2%) was the dominant fungus in both winter and summer collections. Other dominant fungi were: Ceratorhiza sp. (19.5 %) and Limnoperdon sp. (13 %). These two basidiomycetes were the most common taxa in the summer, while they were absent in the winter. Common fungi were Coleophoma emperti (9.2 %), Zopfiella latipes (8 %), Discosporium tremuloides (5.5 %), Trematophoma lignicola (5.5 %) and Ophioceras commune (5 %). Specious genera recorded from the two seasons were Dictyosporium (6 species), Monodictys-like (3 species), Aniptodera (3 species), Lolia (3 species), Podospora (3 species), Zopfiella (3 species), and two species belong to each of the following genera: Achaetomium, Annulatascus, Lentithecium, Linocarpon, Cirrenalia, Ciliochora, Coleophoma, Colletogloeum, Clohesyomyces, Periconia, Pseudorobillarda and Stagonospora.