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Title

Characterization of new soil thermophilic bacteria potentially involved in soil fertilization

AuthorsSantana, Margarida; Portillo Guisado, María del Carmen CSIC ORCID; González Grau, Juan Miguel CSIC ORCID ; Clara, María I. E.
Issue Date2013
PublisherJohn Wiley & Sons
CitationJournal of Plant Nutrition and Soil Science 176(1): 47- 56 (2013)
AbstractThermophilic bacteria were isolated from a soil of an olive grove in Alentejo (Portugal) and characterized morphologically, physiologically, and at the molecular level by partial sequencing of the 16S ribosomal RNA genes, followed by subsequent phylogenetic analysis. The isolates were shown to be gram-positive rods, motile, and to belong to the Firmicutes Phylum. They were able to produce ammonium and sulfate during growth, the levels of which vary among the bacterial isolates. This ability suggests that these bacteria may have an important role in the mobilization of organic S and N in the soil and therefore in providing essential nutrients for plant growth. Tests using two isolates indicated a positive effect on initial seedling development suggesting their potential use in soil nutrient supplementation. The presence of these thermophiles in arable temperate soils might be increasingly important, particularly when the predicted global climate warming is considered, and their features are discussed in this context and considering actual strategies to improve soil fertilization.
URIhttp://hdl.handle.net/10261/79742
DOIhttp://dx.doi.org/10.1002/jpln.201100382
Identifiersdoi: 10.1002/jpln.201100382
issn: 1436-8730
e-issn: 1522-2624
Appears in Collections:(IRNAS) Artículos
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