March 2018

The effect of Thymus vulgaris on growth and biofilm formation of uropathogenic Escherichia coli

Currently, a problem related to public health is resistance to antibiotics because bacteria have been identified to be resistant. It has been reported that bacteria have developed resistance mechanisms to evade the effect of drugs, especially antibiotics. A resistance mechanism to antibiotics is biofilm formation. The biofilms are microbial communities embedded in an extracellular polymeric matrix and are ubiquitous in...

Author(s): Flores-Encarnación M., Nava-Nolazco R. M., Aguilar-Gutiérrez G. R., Carreño-López R. and García-García S. C.  

March 2018

Efficacy of two probiotics in the control of Escherichia coli O157:H7 in experimentally infected lambs

This study was designed to determine the efficacy of probiotics mixture in the control of Shiga-toxin Escherichia coli (STEC) O157:H7 in experimentally infected lambs. Fifteen Yankassa breed of lambs aged between 3-4 weeks old were used. The lambs were divided into three groups of five lambs each (n=5).  Group A: Neither probiotics nor STEC O157:H7 were administered (control), Group B: lambs were administered...

Author(s): Kingsley Chineto Anyika, Solomon Olu Okaiyeto, Shehu Na’allah Saidu and Gabriel Ogbaji Ijale  

March 2018

Potassium phosphite reduction of Candidatus Liberibacter spp. population on leaves of 'Ponkan' tangerines tree with huanglongbing

The objective of this work was to evaluate the population variation dynamics of Candidatus Liberibacter spp. under phosphite applications. The 'Ponkan' tangerines (Citrus reticulata Blanco cv. Ponkan) with symptoms and a high degree of huanglongbing (HLB) severity were used for the test. 'Ponkan' tangerine plants were treated with potassium phosphite leaf applications at a dose of 2.5 L ha-1....

Author(s): Rener Luciano de Souza Ferraz, Marcelo de Andrade Barbosa, Maria José Araújo Wanderley, Patrícia da Silva Costa, Ivomberg Dourado Magalhães, Aldair de Souza Medeiros, Hugo Miranda Faria, Vinicius Marchioro, Alberto Soares de Melo and Franklin Alves dos Anjos  

March 2018

Evidence of curtovirus competition and synergy in co-infected plant hosts

Curtoviruses, members of the Geminiviridae, have wide host ranges, including weeds and crops and are often found in mixed infections of different strains. While other members of the Geminiviridae have been demonstrated to interact through competition and synergism in mixed infections in plants, either type of interaction has not been reported in curtoviruses. This research used qPCR to study the interactions between...

Author(s): Stephen A. Peinado Jr., Jorge Achata Böttger, Li-Fang Chen, Robert Gilbertson and Rebecca Creamer