caa a22 4500 445818700 CHVBK 20180317145237.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00792-011-0384-1 doi (NATIONALLICENCE)springer-10.1007/s00792-011-0384-1 Poly(3-hydroxybutyrate) influences biofilm formation and motility in the novel Antarctic species Pseudomonas extremaustralis under cold conditions [Elektronische Daten] [Paula Tribelli, Nancy López] Polyhydroxyalkanoates (PHAs) are highly reduced bacterial storage compounds that increase fitness in changing environments. It has previously shown that polyhydroxybutyrate (PHB) accumulation is essential during the growth under cold conditions. In this work, the relationship between PHB accumulation and biofilm development at low temperature was investigated. P. extremaustralis, an Antarctic strain able to accumulate PHB, and its phaC mutant, impaired in the synthesis of this polymer, were used to analyze microaerobic growth, biofilm development, EPS content and motility. PHB accumulation increased motility and survival of planktonic cells in the biofilms developed by P. extremaustralis under cold conditions. Microaerobic conditions rescued the cold growth defect of the mutant strain. The PHB accumulation capability could constitute an adaptative advantage for the colonization of new ecological niches in stressful environments. Springer, 2011 Biofilms nationallicence Polyhydroxybutyrate nationallicence Pseudomonas nationallicence Cold nationallicence Motility nationallicence Tribelli Paula Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina aut López Nancy Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina aut Extremophiles Springer Japan 15/5(2011-09-01), 541-547 1431-0651 15:5<541 2011 15 792 https://doi.org/10.1007/s00792-011-0384-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00792-011-0384-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tribelli Paula Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina aut NATIONALLICENCE 700 1- López Nancy Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA, Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Extremophiles Springer Japan 15/5(2011-09-01), 541-547 1431-0651 15:5<541 2011 15 792 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer