August 2018

Isolation of a Lactobacillus strain from aguamiel and preliminary characterization of its antimicrobial components

The aim of the study was to characterize the antimicrobial components of Lactobacillus paracasei KSI.  In the study, a L. paracasei KSI strain was isolated and identified from aguamiel using a 16S rRNA, hsp, recA and rpoBgenes sequencing. The antimicrobial capacity of the L. paracasei strain KSI was determined by agar double layer diffusion technique, while the antagonistic activity of the cell-free extract (E-KSI)...

Author(s): Benítez-Serrano Juan Carlos, Martínez-Pérez Laura, Rosas-Murrieta Nora Hilda, Brambila-Colombres Eduardo Miguel, Hernández-Castro Rigoberto, Rosales-Pérez Mónica and Aguilar-Alonso Patricia  

August 2018

Internal transcribed spacers (ITS) based identification of Trichoderma isolates and biocontrol activity against Macrophomina phaseolina, Aspergillus niger and Meloidogyne incognita

Ten Trichoderma isolates were isolated from different locations in Egypt. Amplification and sequencing of internal transcribed spacers (ITS) was employed to identify Trichoderma isolates that exhibited from 99 to 100% identity with three species of Trichoderma: Trichoderma harzianum, Trichoderma asperellum and Trichoderma longibrachiatum. The biocontrol activity of Trichoderma isolates against Macrophomina phaseolina,...

Author(s): Khalid S. Abdel-lateif, and Ramadan A. Bakr  

August 2018

Antimicrobial resistance pattern of Acinetobacter spp. isolated from clinical samples in a tertiary care hospital at Madinah, Saudi Arabia

Multidrug resistance, in rapidly spreading bacterial species, is a matter of concern in health care units. Samples (6840) collected from a Saudi hospital in Madinah, were screened for Acinetobacter spp. and studied for frequency, gender distribution, and seasonal variations besides antimicrobial resistance pattern. Acinetobacter strains represented 5.5% of the clinical isolates from different sources. Of these, 63% were...

Author(s): Samah Ghanem, Hatem M. El Shafey, and Nikhat Manzoor,  

August 2018

Prevalence and genetic diversity of the strains of Bacillus cereus groups in food for infants and young children in México

The aim of this study was to determine the prevalence and genetic diversity of the strains of Bacillus cereus groups isolated in México from foods for infants and young children. A total of 94 foods from a single commercial brand were analyzed to find B. cereus through a pre-enrichment method of colonial morphology in agar mannitol yolk polymyxin. Specific colonies were selected to be analyzed by polymerase chain...

Author(s): Roberto Adame-Gómez, Kevin del Ángel Guzmán- Guzmán, Amalia Vences-Velázquez, Marco Antonio Leyva-Vázquez, Salvador Muñoz-Barrios and Arturo Ramírez-Peralta