Results 51 to 60 of about 32,125 (160)

Rapid and reliable identification of Staphylococcus aureus capsular serotypes by means of artificial neural network-assisted Fourier-transform infrared spectroscopy [PDF]

open access: yes, 2013
Staphylococcus aureus capsular polysaccharides (CP) are important virulence factors and represent putative targets for vaccine development. Therefore, the purpose of this study was to develop a high-throughput method to identify and discriminate the ...
Barbagelata, María Sol   +6 more
core   +1 more source

A New Species of Plasmodium of the Subgenus Novyella Infecting White‐Shouldered Fire‐Eyes (Pyriglena leucoptera) (Aves: Thamnophilidae) in Brazil

open access: yesIntegrative Zoology, Volume 21, Issue 1, Page 192-202, January 2026.
South America has a remarkable genetic diversity of avian haemosporidians, yet only a few species have been described combining molecular and morphological data. This study introduces Plasmodium (Novyella) pyriglenae sp. nov., a new species infecting the white‐shouldered fire‐eye (Pyriglena leucoptera) in Brazil.
Luiz Gustavo Magalhães Alves   +4 more
wiley   +1 more source

Natural Products Inhibit Bacterial Growth and Modulate Quorum‐Sensing Systems Las and Rhl in Pseudomonas aeruginosa PA14

open access: yesChemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT Quorum sensing (QS) is a bacterial cell communication system in Pseudomonas aeruginosa, which regulates the production of several virulence factors, including pyocyanin, exoproteases, and biofilm formation. Natural products (NPs) have demonstrated their ability to control QS in different bacteria. This work evaluated the antimicrobial and anti‐
Oswaldo Pablo Martínez‐Rodríguez   +8 more
wiley   +1 more source

Parasitología [PDF]

open access: yes, 2013
La presente unidad de aprendizaje, es de carácter obligatorio y se imparte desde el segundo al cuarto período, aplica para trayectoria ideal, mínima y máxima, aportando al discente los conocimientos de las principales características de los distintos ...
Beltrán León, Trinidad   +2 more
core  

Trypanosoma cruzi P21 Is a Pleiotropic Protein That Is Involved in Parasite Host Cell Invasion and Intracellular Parasitism

open access: yesMicrobiologyOpen, Volume 14, Issue 6, December 2025.
This study reveals the pleiotropic role of Trypanosoma cruzi P21 protein in the low‐virulence G strain. P21 knockout significantly impairs parasite invasion, intracellular multiplication, and egress in vitro. In vivo, P21 deficiency leads to reduced cardiac tissue parasitism, suggesting its role in establishing and maintaining silent infections.
Nelsa Paula Inácio Uombe   +11 more
wiley   +1 more source

Biodiversity of entomonematodes parasitizing soil pest white grubs (scarabaeidae) of Buenos Aires, Argentina [PDF]

open access: yes, 2014
Fil: Camino, Nora Beatriz. Centro de Estudios en Parasitología y Vectores (CEPAVE). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Achinelly, María Fernanda. Centro de Estudios en Parasitología y Vectores (CEPAVE).
Achinelly, María Fernanda   +4 more
core   +2 more sources

Escenario actual de la resistencia a la colistina mediada por plásmidos en América Latina [PDF]

open access: yes, 2019
Colistin resistance can occur by chromosomal mutations and by acquisition of plasmid-carrying determinants, mainly mcr-1. In the recent years, we have observed the outburst of this resistance gene in our region. Due to the risk of the rapid dissemination
Di Conza, José Alejandro   +2 more
core   +1 more source

Rhizobium tropici Metabolites Induce Defence‐Related Genes and Promote Sclerotinia Sclerotiorum Stem Rot Control in Chickpeas

open access: yesJournal of Sustainable Agriculture and Environment, Volume 4, Issue 4, December 2025.
Concentrated metabolites from Rhizobium tropici (CM‐RT) were evaluated for their ability to induce resistance and control Sclerotinia stem rot in chickpeas. Root application of CM‐RT reduced disease incidence when compared to acibenzolar‐S‐methyl. Gene expression analysis revealed upregulation of defence‐related genes linked to jasmonic acid, ethylene,
Lucas José de Sousa   +6 more
wiley   +1 more source

Enteroparasitosis en niños de Villaguay, Entre Río : un estudio integrado al estado nutricional y al ambiente [PDF]

open access: yes, 2013
Fil: Zonta, María Lorena. Centro de Estudios en Parasitología y Vectores (CEPAVE). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Bergel Sanchis, María Laura.
Bergel Sanchis, María Laura   +7 more
core  

Collective Response and Navigation Dynamics of Magnetospirillum gryphiswaldense under Rotating Magnetic Fields

open access: yesSmall, Volume 21, Issue 50, December 17, 2025.
The dynamics of Magnetospirillum gryphiswaldense under rotating magnetic fields are explored through the analysis of thousands of trajectories. The study reveals distinct navigation modes and transitions influenced by field strength and frequency. Directionality, alignment, and swimming behavior are examined to uncover how these microorganisms respond ...
Danny Villanueva   +6 more
wiley   +1 more source

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