Fungal microbiota of biodamages of various polymeric materials.

IF 2.1 4区 生物学 Q3 MICROBIOLOGY
Valeri Bagiyan, Narine Ghazanchyan, Nune Khachaturyan, Sona Gevorgyan, Sona Barseghyan, Tamara Davidyan, Karine Chitchyan
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引用次数: 0

Abstract

Data on microbial fouling of various synthetic polymer materials, including those used in space technology, are summarized. It has been established that the dominant groups of microbiota of polymer fouling are the genera of mitosporous fungi Aspergillus, Penicillium, Alternaria, Trichoderma. The enzymatic properties of fungal strains from the collection of microbial cultures of the Microbial Depository Center of the National Academy of Sciences of Armenia were studied. It has been shown that Aspergillus fumigatus, Penicillium chrysogenum, P. steckii, Juxtiphoma eupyrena and a number of other fungi have biofouling activity towards polyethylene, polyethylene terephthalate and some other synthetic polymers. New fungal kits have been developed and proposed to evaluate the fungal resistance of polymeric materials. They include fungi isolated from bio-damaged polymers used in space technology and contain 2 to 5 fungal strains instead of 7 to 9 strains in previously used kits. Taking into account the obtained data, a comparative assessment of the fungal resistance of samples of synthetic polymeric materials of various classes that passed accelerated climatic tests has been carried out. It has been established that the kits of biodegradant fungi, composed of cultures of bio-damaged space technology, generally exceeded the activity of the previously used kits, based on which one can judge the obvious advantages of strains isolated from bio-damaged space technology. In the future, these kits could find application not only for biodegradation of polymers, but also for testing the biostability of various polymers, to use for the construction of aviation and space techniques. Moreover, new optimized kits may be developed based on the strains involved in this study.

各种聚合物材料生物损害的真菌微生物群。
概述了各种合成聚合物材料(包括用于空间技术的材料)的微生物污垢数据。已确定聚合物污垢的主要微生物群是有丝孢真菌曲霉属、青霉属、Alternaria 属和毛霉属。研究了亚美尼亚国家科学院微生物保存中心收集的微生物培养物中真菌菌株的酶特性。结果表明,曲霉菌、蛹青霉、P. steckii、Juxtiphoma eupyrena 和其他一些真菌对聚乙烯、聚对苯二甲酸乙二醇酯和其他一些合成聚合物具有生物污损活性。已开发并提出了新的真菌试剂盒来评估真菌对聚合物材料的抗性。这些试剂盒包括从太空技术中使用的生物受损聚合物中分离出来的真菌,包含 2 至 5 种真菌菌株,而不是以前使用的试剂盒中的 7 至 9 种菌株。考虑到所获得的数据,对通过加速气候试验的各类合成聚合物材料样品的真菌抗性进行了比较评估。结果表明,由受到生物破坏的空间技术培养物组成的生物降解真菌试剂盒的活性普遍超过了以前使用的试剂盒,据此可以判断从受到生物破坏的空间技术中分离出来的菌株具有明显的优势。今后,这些试剂盒不仅可用于聚合物的生物降解,还可用于测试各种聚合物的生物稳定性,以用于航空和航天技术的建造。此外,还可根据本研究涉及的菌株开发新的优化试剂盒。
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
Brazilian Journal of Microbiology
Brazilian Journal of Microbiology 生物-微生物学
CiteScore
4.10
自引率
4.50%
发文量
216
审稿时长
1.0 months
期刊介绍: The Brazilian Journal of Microbiology is an international peer reviewed journal that covers a wide-range of research on fundamental and applied aspects of microbiology. The journal considers for publication original research articles, short communications, reviews, and letters to the editor, that may be submitted to the following sections: Biotechnology and Industrial Microbiology, Food Microbiology, Bacterial and Fungal Pathogenesis, Clinical Microbiology, Environmental Microbiology, Veterinary Microbiology, Fungal and Bacterial Physiology, Bacterial, Fungal and Virus Molecular Biology, Education in Microbiology. For more details on each section, please check out the instructions for authors. The journal is the official publication of the Brazilian Society of Microbiology and currently publishes 4 issues per year.
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