Biodiversity, spatial distribution and seasonality of heterotrophic straminipiles and true zoosporic fungi in two water bodies exposed to different effluents at Assiut (Upper Egypt).

Q3 Environmental Science
Czech Mycology Pub Date : 2020-05-29 DOI:10.33585/cmy.72104
A. M. Khallil, Essam Ali, E. Hassan, S. Ibrahim
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引用次数: 4

Abstract

Patterns of frequency, biodiversity and seasonality of fungi-like organisms and true zoosporic fungi in relationship with some abiotic factors of two water bodies exposed to various effluents at Assiut Governorate (Upper Egypt) were investigated. Thirty-four species related to ten genera were isolated from the El-Zinnar irrigation canal and the El-Ibrahimia canal, which receive treated sewage water and the industrial effluents of a factory for oils and detergents, respectively, using the baiting technique during four seasons (from winter 2017 to autumn 2018). The highest fungal diversity was recorded during winter, followed by autumn and spring, whereas summer was the lowest in species diversity. Achlya, Dictyuchus, Allomyces and Pythium were the prevalent genera, whereas Brevilegnia and Pythiopsis were the least frequent ones. Some fungal taxa were present throughout the year while others were highly restricted, occurring in only one season. The species composition and community structure of the heterotrophic straminipiles and true zoosporic fungi varied in spatial distribution and exhibited seasonal variations, probably influenced by particular abiotic water characteristics, sampling site and season. Sites which directly receive either treated sewage water or industrial effluents were the poorest in straminipiles and true zoosporic fungi, and can be regarded as stressful environments where some abiotic parameters were excessive. Seasonality and biodiversity of the surveyed organisms are mainly dependent on water temperature, conductivity, most of the determined cations and anions, but pH did not exhibit any considerable impact. It is assumed that the existence of some fungal taxa at polluted sites may have a potential source of fungi beneficial for bioremediation and xenobiotic transformation.
在Assiut(上埃及)暴露于不同污水的两个水体中异养链菌和真游动孢子真菌的生物多样性、空间分布和季节性。
研究了上埃及Assiut省两个水体中真菌样生物和真游动孢子真菌的频率、生物多样性和季节性与一些非生物因子的关系。在四个季节(2017年冬季至2018年秋季),利用诱饵技术,从El-Zinnar灌溉渠和El-Ibrahimia运河分别接收处理过的污水和一家油品和洗涤剂工厂的工业废水,分离出10属34种。真菌多样性以冬季最高,秋季和春季次之,夏季最低。Achlya、Dictyuchus、Allomyces和Pythium是最常见的属,Brevilegnia和Pythiopsis是最不常见的属。一些真菌类群全年都存在,而另一些则受到高度限制,仅在一个季节发生。异养链菌和真游动孢子真菌的物种组成和群落结构在空间分布上存在差异,并表现出季节变化,这可能受特定的非生物水体特征、采样地点和季节的影响。直接接收处理过的污水或工业废水的场地是菌群和真正的游动孢子真菌最贫乏的,并且可以被视为一些非生物参数过高的应激环境。被调查生物的季节性和生物多样性主要受水温、电导率、大部分测定的阳离子和阴离子的影响,而pH对其影响不大。认为污染场地中存在的真菌类群可能是有益生物修复和外源转化的潜在真菌来源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Czech Mycology
Czech Mycology Agricultural and Biological Sciences-Plant Science
CiteScore
1.90
自引率
0.00%
发文量
10
期刊介绍: Czech Mycology (former "Česká Mykologie") is an peer-reviewed international scientific journal publishing papers in all aspects of mycology including taxonomy, ecology, physiology and mycofloristics as well as mycological topics in forestry, agriculture and medicine. Czech Mycology publishes full length papers and short communications reporting original research which make a significant contribution to mycology. Review articles are also published.
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