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Three actinobacterial strains were isolated from roots of the salt-marsh plant Halimione portulacoides collected in Ria de Aveiro, Portugal. Molecular typing using enterobacterial repetitive intergenic consensus ERIC-PCR fingerprinting showed the strains to be highly similar. Phylogenetic analyses based on the 16S rRNA gene sequence and multilocus sequence(More)
An endophytic actinobacterial strain RZ36T, isolated from roots of the salt-marsh plant Halimione portulacoides, was subjected to a polyphasic taxonomic characterization. 16S rRNA gene sequence analysis revealed that this strain belonged to the genus Microbacterium. The closest phylogenetic relative was Microbacterium hominis DSM 12509T, with a pairwise 16S(More)
A polyphasic study was designed to determine the taxonomic provenance of three Modestobacter strains isolated from an extreme hyper-arid Atacama Desert soil. The strains, isolates KNN 45-1a, KNN 45-2b(T) and KNN 45-3b, were shown to have chemotaxonomic and morphological properties in line with their classification in the genus Modestobacter. The isolates(More)
For a long time, it was believed that a healthy plant did not harbor any microorganisms within its tissues, as these were often considered detrimental for the plant. In the last three decades, the numbers of studies on plant microbe-interactions has led to a change in our view and we now know that many of these invisible partners are essential for the(More)
Endophytic microorganisms live inside plants for at least part of their life cycle. According to their life strategies, bacterial endophytes can be classified as "obligate" or "facultative". Reports that members of the genus Micromonospora, Gram-positive Actinobacteria, are normal occupants of nitrogen-fixing nodules has opened up a question as to what is(More)
Three novel actinobacterial strains, GUI2(T), GUI42 and CR21 isolated from nodular tissues and the rhizosphere of a sweet pea plant collected in Cañizal, Spain were identified according to their 16S rRNA gene sequences as new members of the genus Micromonospora. The closest phylogenetic members were found to be Micromonospora saelicesensis (99.2%)(More)
A polyphasic study was undertaken to establish the taxonomic status of two Modestobacter strains isolated from the surface of deteriorated sandstone of a historic building in Salamanca, Spain. The strains, isolates MDVD1T and MON 3.1T, were found to have chemotaxonomic and morphological properties consistent with their classification in the genus(More)
A diversity study on the presence of strains representing the genus Micromonospora in Pisum sativum nodules collected from Cañizal (Spain) has provided evidence of the high number of isolates that might represent novel species. In the present work, we have characterized three of these isolates: GUI23T, GUI43T and GUI63T. Phenotypic and genotypic analyses(More)
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