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Marine fungi isolated from Chilean fjord sediments can degrade oxytetracycline.

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Title: Marine fungi isolated from Chilean fjord sediments can degrade oxytetracycline.
Authors: Ahumada-Rudolph, R.1,2,3 ramonahumada@udec.cl, Novoa, V.1,2, Sáez, K.4, Martínez, M.5, Rudolph, A.6, Torres-Diaz, C.7, Becerra, J.3
Source: Environmental Monitoring & Assessment. Aug2016, Vol. 188 Issue 8, pN.PAG-N.PAG. 1p.
Subject Terms: *Marine fungi, *Aquatic fungi, *Fjords, *Sediments, *Oxytetracycline
Abstract: Salmon farming is the main economic activity in the fjords area of Southern Chile. This activity requires the use of antibiotics, such as oxytetracycline, for the control and prevention of diseases, which have a negative impact on the environment. We analyzed the abilities of endemic marine fungi to biodegrade oxytetracycline, an antibiotic used extensively in fish farming. We isolated marine fungi strains from sediment samples obtained from an area of fish farming activity. The five isolated strains showed an activity on oxytetracycline and were identified as Trichoderma harzianum, Trichoderma deliquescens, Penicillium crustosum, Rhodotorula mucilaginosa, and Talaromyces atroroseus by a scanning electron microscopy and characterized by molecular techniques. Results showed significant degradation in the concentration of oxytetracycline at the first 2 days of treatment for all strains analyzed. At 21 days of treatment, the concentration of oxytetracycline was decreased 92 % by T. harzianum, 85 % by T. deliquescens, 83 % by P. crustosum, 73 % by R. mucilaginosa, and 72 % by T. atroroseus, all of which were significantly higher than the controls. Given these results, we propose that fungal strains isolated from marine sediments may be useful tools for biodegradation of antibiotics, such as oxytetracycline, in the salmon industry. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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An: 135311960
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  Data: Marine fungi isolated from Chilean fjord sediments can degrade oxytetracycline.
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  Data: <searchLink fieldCode="AR" term="%22Ahumada-Rudolph%2C+R%2E%22">Ahumada-Rudolph, R.</searchLink><relatesTo>1,2,3</relatesTo><i> ramonahumada@udec.cl</i><br /><searchLink fieldCode="AR" term="%22Novoa%2C+V%2E%22">Novoa, V.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sáez%2C+K%2E%22">Sáez, K.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Martínez%2C+M%2E%22">Martínez, M.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22Rudolph%2C+A%2E%22">Rudolph, A.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Torres-Diaz%2C+C%2E%22">Torres-Diaz, C.</searchLink><relatesTo>7</relatesTo><br /><searchLink fieldCode="AR" term="%22Becerra%2C+J%2E%22">Becerra, J.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Monitoring+%26+Assessment%22">Environmental Monitoring & Assessment</searchLink>. Aug2016, Vol. 188 Issue 8, pN.PAG-N.PAG. 1p.
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  Data: *<searchLink fieldCode="DE" term="%22Marine+fungi%22">Marine fungi</searchLink><br />*<searchLink fieldCode="DE" term="%22Aquatic+fungi%22">Aquatic fungi</searchLink><br />*<searchLink fieldCode="DE" term="%22Fjords%22">Fjords</searchLink><br />*<searchLink fieldCode="DE" term="%22Sediments%22">Sediments</searchLink><br />*<searchLink fieldCode="DE" term="%22Oxytetracycline%22">Oxytetracycline</searchLink>
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  Data: Salmon farming is the main economic activity in the fjords area of Southern Chile. This activity requires the use of antibiotics, such as oxytetracycline, for the control and prevention of diseases, which have a negative impact on the environment. We analyzed the abilities of endemic marine fungi to biodegrade oxytetracycline, an antibiotic used extensively in fish farming. We isolated marine fungi strains from sediment samples obtained from an area of fish farming activity. The five isolated strains showed an activity on oxytetracycline and were identified as Trichoderma harzianum, Trichoderma deliquescens, Penicillium crustosum, Rhodotorula mucilaginosa, and Talaromyces atroroseus by a scanning electron microscopy and characterized by molecular techniques. Results showed significant degradation in the concentration of oxytetracycline at the first 2 days of treatment for all strains analyzed. At 21 days of treatment, the concentration of oxytetracycline was decreased 92 % by T. harzianum, 85 % by T. deliquescens, 83 % by P. crustosum, 73 % by R. mucilaginosa, and 72 % by T. atroroseus, all of which were significantly higher than the controls. Given these results, we propose that fungal strains isolated from marine sediments may be useful tools for biodegradation of antibiotics, such as oxytetracycline, in the salmon industry. [ABSTRACT FROM AUTHOR]
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      – Type: doi
        Value: 10.1007/s10661-016-5475-0
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      – Code: eng
        Text: English
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        StartPage: N.PAG
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      – SubjectFull: Marine fungi
        Type: general
      – SubjectFull: Aquatic fungi
        Type: general
      – SubjectFull: Fjords
        Type: general
      – SubjectFull: Sediments
        Type: general
      – SubjectFull: Oxytetracycline
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      – TitleFull: Marine fungi isolated from Chilean fjord sediments can degrade oxytetracycline.
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              Text: Aug2016
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