Potassium solubilization in phonolite rock by diazotrophic bacteria

Florentino, Ligiane Aparecida; Rezende, Adauton Vilela; Miranda, Cássia Cristina Bachião; Mesquita, Aline Carvalho; Mantovani, José Ricardo; Bianchini, Hudson Carvalho

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dc.creator	Florentino, Ligiane Aparecida
dc.creator	Rezende, Adauton Vilela
dc.creator	Miranda, Cássia Cristina Bachião
dc.creator	Mesquita, Aline Carvalho
dc.creator	Mantovani, José Ricardo
dc.creator	Bianchini, Hudson Carvalho
dc.date	2017-04-06
dc.date.accessioned	2022-03-21T20:07:49Z
dc.date.available	2022-03-21T20:07:49Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1292
dc.identifier	10.14295/cs.v8i1.1292
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77784
dc.description	Some strains of nitrogen fixing bacteria, besides fixing the N2, can produce phytohormones, control pathogens, act in solubilization of minerals containing phosphorus (P) and potassium (K), contributing to plant growth. However, the solubilization of minerals containing K has been little exploited. Therefore, the aim of this study was to evaluate potassium solubilization (K) of phonolite rock by strains of associative nitrogen fixing bacteria supplied with two different carbon sources. Twelve bacterial strains were cultured for seven days at 25°C in Aleksandrov medium supplemented with phonolite rock powder. The experiment was carried out in a completely randomized factorial design, 13 x 2 (12 bacterial strains and a control without inoculation) and two carbon sources (glucose and sucrose) with four repetitions. After the growth, the supernatant was separated by centrifugation and analyzed for the final pH value and the content of K. All diazotrophic bacteria strains contributed to increase the release of K when compared to the control treatment. The strain UNIFENAS 100-94 solubilized 130 mg L-1 K in the presence of the two carbon sources, indicating the potential use of these diazotrophic bacterial strains for K solubilization from minerals.	en-US
dc.description	Some strains of nitrogen fixing bacteria, besides fixing the N2, can produce phytohormones, control pathogens, act in solubilization of minerals containing phosphorus (P) and potassium (K), contributing to plant growth. However, the solubilization of minerals containing K has been little exploited. Therefore, the aim of this study was to evaluate potassium solubilization (K) of phonolite rock by strains of associative nitrogen fixing bacteria supplied with two different carbon sources. Twelve bacterial strains were cultured for seven days at 25°C in Aleksandrov medium supplemented with phonolite rock powder. The experiment was carried out in a completely randomized factorial design, 13 x 2 (12 bacterial strains and a control without inoculation) and two carbon sources (glucose and sucrose) with four repetitions. After the growth, the supernatant was separated by centrifugation and analyzed for the final pH value and the content of K. All diazotrophic bacteria strains contributed to increase the release of K when compared to the control treatment. The strain UNIFENAS 100-94 solubilized 130 mg L-1 K in the presence of the two carbon sources, indicating the potential use of these diazotrophic bacterial strains for K solubilization from minerals.	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1292/441
dc.rights	Copyright (c) 2017 Ligiane Aparecida Florentino, Adauton Vilela Rezende, Cássia Cristina Bachião Miranda, Aline Carvalho Mesquita, José Ricardo Mantovani, Hudson Carvalho Bianchini	en-US
dc.source	Comunicata Scientiae; Vol. 8 No. 1 (2017); 17-23	en-US
dc.source	Comunicata Scientiae; v. 8 n. 1 (2017); 17-23	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	fixadores de N2	pt-BR
dc.subject	fonte carbono	pt-BR
dc.subject	solubilização	pt-BR
dc.title	Potassium solubilization in phonolite rock by diazotrophic bacteria	en-US
dc.title	Potassium solubilization in phonolite rock by diazotrophic bacteria	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	Artigo Científico	pt-BR