Effect of temperature on microcystin-LR removal and lysis activity on Microcystis aeruginosa (cyanobacteria) by an indigenous bacterium belonging to the genus Achromobacter

Microcystis is a frequent cyanobacterium bloom-forming with cosmopolitan distribution which can produce a hepatotoxin group called microcystins (MCs). These MCs are resistant to the traditional processes employed in the water treatment plants and they are often detected after conv...

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Autores principales:	Crettaz Minaglia, Melina Celeste, Fallico, Maximiliano José, Aranda Mosquera, Jorge Oswaldo, Juárez, Iván, Pezzoni, Magdalena, Costa, Cristina S., Andrinolo, Darío, Giannuzzi, Leda
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2020
Materias:	Ciencias Exactas Química Achromobacter spp. Biological removal Microcystislysis Rio de la Plata River
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/135410
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-135410
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Química Achromobacter spp. Biological removal Microcystislysis Rio de la Plata River
spellingShingle	Ciencias Exactas Química Achromobacter spp. Biological removal Microcystislysis Rio de la Plata River Crettaz Minaglia, Melina Celeste Fallico, Maximiliano José Aranda Mosquera, Jorge Oswaldo Juárez, Iván Pezzoni, Magdalena Costa, Cristina S. Andrinolo, Darío Giannuzzi, Leda Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
topic_facet	Ciencias Exactas Química Achromobacter spp. Biological removal Microcystislysis Rio de la Plata River
description	<i>Microcystis</i> is a frequent cyanobacterium bloom-forming with cosmopolitan distribution which can produce a hepatotoxin group called microcystins (MCs). These MCs are resistant to the traditional processes employed in the water treatment plants and they are often detected after conventional treatments. Because of this, the bio-removal studies have obtained a great interest in the last decades. In this work, a bacterial strain namely LG1 with the ability to remove microcystin-LR (MC-LR) under laboratory conditions was isolated from Rio de la Plata River and it was identified as <i>Achromobacter</i> spp. This ubiquitous bacterium was able to remove 79.5% MC-LR in 7 days with average removal time of 3.33 ± 0.08, 3.06 ± 0.05, and 2.77 ± 0.05 days at 28, 32, and 36 ± 1 °C, being higher at high temperature (36 °C) with an activation energy = 16.79 ± 1.99 kJ mol⁻¹. LG1 grew better at higher temperature (from 28 to 36 ± 1 °C) increasing the specific growth rate (μ) and reducing 2-fold the lag phase duration (LPD) without significant differences (p > 0.05) between maximum population density (MPD). In addition, LG1 showed a lysis activity on two <i>M. aeruginosa</i> native strains in 7 days measured as chlorophyll a (Chl-a) concentration. The lysis activity increased around 2-fold when increasing the temperature from 28 to 36 ± 1 °C. This is the first report of an indigenous bacterium belonging to the genus<i>Achromobacter</i> spp. isolated from the Rio de la Plata River with the capacity to remove MC-LR and lysis activity on <i>M. aeruginosa</i>.
format	Articulo Articulo
author	Crettaz Minaglia, Melina Celeste Fallico, Maximiliano José Aranda Mosquera, Jorge Oswaldo Juárez, Iván Pezzoni, Magdalena Costa, Cristina S. Andrinolo, Darío Giannuzzi, Leda
author_facet	Crettaz Minaglia, Melina Celeste Fallico, Maximiliano José Aranda Mosquera, Jorge Oswaldo Juárez, Iván Pezzoni, Magdalena Costa, Cristina S. Andrinolo, Darío Giannuzzi, Leda
author_sort	Crettaz Minaglia, Melina Celeste
title	Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
title_short	Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
title_full	Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
title_fullStr	Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
title_full_unstemmed	Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>
title_sort	effect of temperature on microcystin-lr removal and lysis activity on <i>microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>achromobacter</i>
publishDate	2020
url	http://sedici.unlp.edu.ar/handle/10915/135410
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Effect of temperature on microcystin-LR removal and lysis activity on <i>Microcystis aeruginosa</i> (cyanobacteria) by an indigenous bacterium belonging to the genus <i>Achromobacter</i>

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