By Nelda Lila Olivera, Diego Libkind, Edgardo Donati
The Argentinean Patagonia bargains an excellent range of scarcely explored environments compatible for the bioprospection of biotechnological appropriate microorganisms. This booklet presents readers with a concise and obviously illustrated remedy of remarkable subject matters of Patagonian microbiology and biotechnology. It covers a variety of components attention-grabbing to a number of audiences reminiscent of researchers, graduate scholars and pros engaged on the meals. one of the major issues we'll speak about examples of environmental functions, comparable to heavy steel and hydrocarbon bioremediation, bioprospection of precious molecules from extremophilic micro organism and yeasts, using Patagonian yeasts and lactic acid micro organism in fermented meals and drinks, aquaculture probiotics and yeasts for nutrition biopreservation.
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As a consequence, the capability of hydrocarbon biodegradation has been acquired rather frequently through evolution, and hydrocarbon-degrading microorganisms are widespread in nature (Prince et al. 2010). , Pseudomonas, Alteromonas, Neptunomonas, Marinobacter, Alcanivorax, Cycloclasticus) (Vila et al. 2015), the Alphaproteobacteria (the sphingomonads) (Kertesz and Kawasaki 2010, the Roseobacter clade (Kim and Kwon 2010), and the Actinobacteria (Rhodococcus, Mycobacterium, Nocardioides) (Vila et al.
1999; Nakatsu et al. 2000). Also, the identification of key organisms in pollutant biodegradation is important to evaluate and develop bioremediation strategies in situ whose effectiveness could be evaluated by DGGE (Harayama et al. 2004; Molina et al. 2009; Ríos et al. 2010; Simarro et al. 2012). Bacteria populations recovered from selective enrichment cultures supplemented with PAH and those from polluted sediment were monitored by DGGE and their members were identified by sequencing of bands.
Pyrene removal values by mixed cultures of two strains were higher than those obtained with the corresponding pure cultures. Combinations of P. monteilii P26/Rhodococcus sp. P18 (C1) showed pyrene removal value of 41 %, whereas P. monteilii P26 showed no pyrene removal capability when grown in pure culture. Interestingly, C3 (P. monteilii P26/Gordonia sp. H19) removed 25 % of pyrene, improving the expected performance more than fourfold. Maximum removal of the mix of hydrocarbons by a mixture of three strains was obtained in a defined mixed culture of P.
Biology and Biotechnology of Patagonian Microorganisms by Nelda Lila Olivera, Diego Libkind, Edgardo Donati