Flor Nohemí Rivera-Orduña

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Aiming at learning the functional bacterial community in the high humus content, saline-alkaline soils of chinampas, the cellulolytic bacteria were quantified and 100 bacterial isolates were isolated and characterized in the present study. Analysis of 16S-23S IGS (intergenic spacer) RFLP (restriction fragment length polymorphism) grouped the isolates into(More)
Serratia proteamaculans CDBB-1961, a gut symbiont from the roundheaded pine beetle Dendroctonus adjunctus, displayed strong cellulolytic activity on agar-plates with carboxymethyl cellulose (CMC) as carbon source. Automatic genome annotation of S. proteamaculans made possible the identification of a single endoglucanase encoding gene, designated spr cel8A.(More)
Bark beetles (Curculionidae: Scolytinae) feed on the xylem and phloem of their host, which are composed of structural carbohydrates and organic compounds that are not easily degraded by the insects. Some of these compounds might be hydrolyzed by digestive enzymes produced by microbes present in the gut of these insects. In this study, we evaluated the(More)
To evaluate the interactions among endophytes, plants and heavy metal/arsenic contamination, root endophytic bacteria of Prosopis laevigata (Humb and Bonpl. ex Willd) and Sphaeralcea angustifolia grown in a heavy metal(loid)-contaminated zone in San Luis Potosi, Mexico, were isolated and characterized. Greater abundance and species richness were found in(More)
With the aim of studying the biodiversity and the biotechnological potential of endophytic fungi associated with the medicinal plant Dendropanax arboreus, 45 fungal isolates were recovered from ten plants grown at the “El Cielo” Biosphere Reserve, Mexico. Based on the sequence analysis of internal transcribed spacer (ITS) regions and the observation of(More)
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