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Título
Characterization of Actinomycetes Strains Isolated from the Intestinal Tract and Feces of the Larvae of the Longhorn Beetle Cerambyx welensii
Autor(es)
Materia
Actinomycetes
Streptomyces
Amycolatopsis
Nocardiopsis
Cerambyx
Antiobiotic production
Hydrolytic enzymes
Clasificación UNESCO
2409 Genética
2414 Microbiología
Fecha de publicación
2020
Editor
Microorganisms
Citación
Santamaría, R.I. ; Martínez Carrasco, A. [et al.] (2020). Characterization of Actinomycetes Strains Isolated from the Intestional Tract and Feces of the Larvae of the Longhorn Beetle Cerambyx welensii. Microorganisms, 8(12), pp. 1-14. doi:10.3390/microorganisms8122013
Resumen
[EN]Actinomycetes constitute a large group of Gram-positive bacteria present in different habitats.
One of these habitats involves the association of these bacteria with insects. In this work, we have
studied twenty-four actinomycetes strains isolated from the intestinal tract and feces from larvae of the
xylophagous coleopteran Cerambyx welensii and have shown that seventeen strains present hydrolytic
activity of some of the following substrates: cellulose, hemicellulose, starch and proteins. Fourteen
of the isolates produce antimicrobial molecules against the Gram-positive bacteria Micrococcus
luteus. Analysis of seven strains led us to identify the production of a wide number of compounds
including streptanoate, alpiniamide A, alteramides A and B, coproporphyrin III, deferoxamine,
demethylenenocardamine, dihydropicromycin, nocardamine, picromycin, surugamides A, B, C,
D and E, tirandamycins A and B, and valinomycin. A significant number of other compounds,
whose molecular formulae are not included in the Dictionary of Natural Products (DNP), were also
present in the extracts analyzed, which opens up the possibility of identifying new active antibiotics.
Molecular identification of ten of the isolated bacteria determined that six of them belong to the genus
Streptomyces, two of them are included in the genus Amycolatopsis and two in the genus Nocardiopsis.
URI
DOI
10.3390/microorganisms8122013
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