Centro de Investigación en Dinámica Celular, Instituto de Investigaciones en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Ave. Universidad 1001, Col. Chamilpa, CP. 62209 Cuernavaca, Morelos, Mexico.
Centro de Investigaciones en Biotecnología, UAEM, Ave. Universidad 1001, Col. Chamilpa, CP. 62209 Cuernavaca, Morelos, Mexico.
Bioresour Technol. 2019 May;279:287-296. doi: 10.1016/j.biortech.2019.02.002. Epub 2019 Feb 2.
Polycyclic aromatic hydrocarbons (PAH) and pharmaceutical compounds (PhC) are xenobiotics present in many saline wastewaters. Although fungi are known for their ability to remove xenobiotics, the potential of halophilic fungi to degrade highly persistent pollutants was not yet investigated. The use of two halophilic fungi, Aspergillus sydowii and Aspergillus destruens, for the elimination of PAH and PhC at saline conditions was studied. In saline synthetic medium both fungi used benzo-α-pyrene and phenanthrene as sole carbon source and removed over 90% of both PAH, A. sydowii due to biodegradation and A. destruens to bioadsorption. They removed 100% of a mixture of fifteen PAH in saline biorefinery wastewater. Test using Cucumis sativus demonstrated that wastewater treated with the two fungi lowered considerably the phytotoxicity. This study is the first demonstration that ascomycetous halophilic fungi, in contrast to other fungi (and in particular basidiomycetes) can be used for mycotreatments under salinity conditions.
多环芳烃（PAH）和药物化合物（PhC）是许多盐废水中存在的外来物质。虽然真菌以去除外来物质的能力而闻名，但嗜盐真菌降解高度持久污染物的潜力尚未得到研究。本研究使用两种嗜盐真菌，黄曲霉（Aspergillus sydowii）和毁丝霉（Aspergillus destruens），在盐度条件下去除 PAH 和 PhC。在盐合成培养基中，两种真菌均将苯并-α-芘和菲作为唯一碳源，并通过生物降解去除了超过 90%的 PAH，黄曲霉通过生物降解，毁丝霉通过生物吸附去除。它们还去除了盐质生物炼制废水中十五种 PAH 混合物的 100%。用黄瓜（Cucumis sativus）进行的测试表明，用两种真菌处理的废水大大降低了植物毒性。这项研究首次证明，与其他真菌（特别是担子菌）相比，子囊菌嗜盐真菌可以在盐度条件下用于霉菌处理。
