and Essential Oils Synergize with Ampicillin against Extended-Spectrum Beta-Lactamase-Producing .

(1) Background: Could compounds such as monoterpenes and sesquiterpenes present in essential plant oils inhibit bacterial growth as an alternative to help mitigate bacterial resistance? The purpose of this study is evaluating the in vitro antibacterial effect of EO (LEO) and EO (TEO), individually and in combination with ampicillin, against extended-spectrum beta-lactamase (ESBL)-producing strains; (2) Methods: Experimental in vitro design with post-test. The EOs were obtained by hydrodistillation and were analyzed by GC. ESBL-producing strains used were selected from urine cultures and the and resistance genes were identified by end point PCR.

Crosslinked Chitosan Films Supplemented with sp. Fruit Extract.

This work proposes the development of a polymer film made up of affordable components for its use as a healthcare material. Chitosan, itaconic acid, and fruit extract (Mexican variation) are the unique ingredients of this biomaterial prospect. Chitosan (from crustacean chitin) is crosslinked with itaconic acid, and in situ added fruit extract in a one-pot reaction carried out in water as the sole solvent.

Procedure for Estimating the Tolerance and Accumulation of Heavy Metals Using Plant Cell Cultures.

The tolerance index (TI) and the bioaccumulation factor (BF) for the estimation of accumulation and tolerance of different heavy metals in cell suspension cultures are reviewed. Procedures for measuring these parameters are described for the purposes of phytoremediation research.

Tolerance, arsenic uptake, and oxidative stress in Acacia farnesiana under arsenate-stress.

Acacia farnesiana is a shrub widely distributed in soils heavily polluted with arsenic in Mexico. However, the mechanisms by which this species tolerates the phytotoxic effects of arsenic are unknown. This study aimed to investigate the tolerance and bioaccumulation of As by A.

Effect of a saprophytic fungus on the growth and the lead uptake, translocation and immobilization in Dodonaea viscosa.

Phytoremediation is a feasible alternative to remediate soils polluted with toxic elements, which can be enhanced by manipulating plant-microbe interactions. Regarding this, free-living saprophytic fungi that interact beneficially with roots have been scarcely studied. Thus, the aim of this study was to assess the effect of a saprophytic fungus, Lewia sp.

Increased mesquite gum formation in nodal explants cultures after treatment with a microbial biomass preparation.

Prosopis laevigata nodal explants cultures were established in Murashige and Skoog medium. Simultaneously these cultures were subjected to stress with biotic elicitors and an environmental factor (temperature increase to promote heat stress) in order to promote and increase exuded mesquite gum production. The biotic elicitors were: Aspergillus nidulans and Pseudomonas pseudoalcaligenes both used in concentrations of 10, 20 and 30 mg, whereas the environmental condition was different incubation temperatures (25, 35 and 40 degrees C).