海洋来源真菌 Cladosporium sp. CBMAI 1237 对蒽和几种多环芳烃的生物降解。
Biodegradation of anthracene and several PAHs by the marine-derived fungus Cladosporium sp. CBMAI 1237.
机构信息
Laboratório de Química Orgânica e Biocatálise, Instituto de Química de São Carlos, Universidade de São Paulo, Av. João Dagnone, 1100, Ed. Química Ambiental, J. Santa Angelina, 13563-120, São Carlos, SP, Brazil.
Laboratório de Matéria Orgânica Natural, Departamento de Química, Universidade Federal de Sergipe, 49100-000, São Cristovão, SE, Brazil.
出版信息
Mar Pollut Bull. 2018 Apr;129(2):525-533. doi: 10.1016/j.marpolbul.2017.10.023. Epub 2017 Oct 18.
The biodegradation of polycyclic aromatic hydrocarbons (PAHs) by marine-derived fungi was reported in this work. Marine-derived fungi (Trichoderma harzianum CBMAI 1677, Cladosporium sp. CBMAI 1237, Aspergillus sydowii CBMAI 935, Penicillium citrinum CBMAI 1186 and Mucor racemosus CBMAI 847) biodegraded anthracene (14days, 130rpm, 50mgmL initial concentration in malt 2% medium). Cladosporium sp. CBMAI 1237 was the most efficient strain and biodegraded more anthracene in the presence (42% biodegradation) than in the absence (26%) of artificial seawater, suggesting that the biodegradation of PAHs may be faster in seawater than in non-saline environment. After 21days, Cladosporium sp. CBMAI 1237 biodegraded anthracene (71% biodegradation), anthrone (100%), anthraquinone (32%), acenaphthene (78%), fluorene (70%), phenanthrene (47%), fluoranthene (52%), pyrene (62%) and nitropyrene (64%). Previous undocumented metabolites were identified and, anthraquinone was a common product of different PAHs biodegradation. The marine-derived fungus Cladosporium sp. CBMAI 1237 showed potential for bioremediation of PAHs.
本工作报道了海洋来源真菌对多环芳烃（PAHs）的生物降解作用。海洋来源真菌（哈茨木霉 CBMAI 1677、枝孢属 CBMAI 1237、黄曲霉 CBMAI 935、桔青霉 CBMAI 1186 和毛霉 CBMAI 847）降解蒽（14 天，130rpm，初始浓度 50mgmL-1，在麦芽 2%培养基中）。枝孢属 CBMAI 1237 是最有效的菌株，在有（42%生物降解）和没有（26%）人工海水的情况下，生物降解的蒽更多，这表明 PAHs 的生物降解在海水中可能比在非盐环境中更快。21 天后，枝孢属 CBMAI 1237 生物降解蒽（71%生物降解）、蒽酮（100%）、蒽醌（32%）、苊（78%）、芴（70%）、菲（47%）、荧蒽（52%）、芘（62%）和硝基芘（64%）。鉴定出以前未记录的代谢物，并且蒽醌是不同 PAHs 生物降解的共同产物。海洋来源真菌枝孢属 CBMAI 1237 显示出对 PAHs 生物修复的潜力。
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