Results 31 to 40 of about 51,930 (163)

Caracterización molecular de Escherichia coli resistente a antibióticos aislada de mastitis bovina en Michoacán, México

open access: yesRevista Mexicana de Ciencias Pecuarias, 2017
En el presente estudio se describen los patrones de resistencia a antibióticos de E. coli aislada de mastitis bovina, así como la presencia de genes de virulencia y de resistencia.
Rafael Jiménez Mejía   +3 more
doaj   +1 more source

Inheritance of resistance to cotton blue disease [PDF]

open access: yes, 2008
The objective of this work was to determine the inheritance of cotton blue disease resistance by cotton plants. Populations derived from the CD 401 and Delta Opal resistant varieties were evaluated, through a greenhouse test with artificial inoculation ...
Barroso, Paulo Augusto Vianna   +7 more
core   +1 more source

Evolution of research on global amphibian declines

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash   +6 more
wiley   +1 more source

Mapeamento genético e piramidização de genes de resistência no desenvolvimento de multilinhas e cultivares compostas de arroz irrigado com resistência estável à brusone (Pyricularia grisea): relatório técnico. [PDF]

open access: yes, 2011
A principal estratégia do projeto foi a piramidização indireta de diferentes alelos da família gênica Pi em linhagens elite de arroz, visando propiciar resistência estável à doença.
ALMEIDA, C. G. de   +9 more
core   +1 more source

Genetic Diversity of Polymyxin Resistance Genes in Klebsiella pneumoniae Clinical Isolates

open access: yesMolecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT This study investigates the genetic diversity and evolutionary mechanisms driving polymyxin resistance in Klebsiella pneumoniae, a critical priority pathogen. By analysing mgrB, phoPQ and pmrAB genes in susceptible (PM‐S) and resistant (PM‐R) populations through neutrality tests (Tajima D, Fu & Li's D) we uncovered polygenic adaptation and ...
Daniel Miceli Serwy   +8 more
wiley   +1 more source

Pyramiding resistance loci against grape downy mildew (Plasmopara viticola L.) [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Agronomia.No Brasil, a região Sul é a principal produtora de vinhos finos do país.
Saifert, Luciano
core  

Analysis of Aspergillus spp. Isolates According to Temporal–Spatial, Sociodemographic, and Clinical Variables—Microsatellite Typing of Clinical and Environmental Samples of Aspergillus fumigatus in a University Hospital in Sao Paulo, Brazil

open access: yesMycoses, Volume 69, Issue 1, January 2026.
ABSTRACT Background Typing Aspergillus species is crucial for understanding the sources of infection in hospital environments. Objectives This study analysed clinical and air samples as well as their relationship with the clinical forms of aspergillosis.
Claudia de Abreu Fonseca   +18 more
wiley   +1 more source

Avaliação de populações segregantes de soja quanto à resistência à ferrugem asiática. [PDF]

open access: yes, 2012
A ferrugem asiática (FAS) é uma importante doença que afeta o cultivo da soja no Brasil. Pelo menos seis genes de resistência diferentes em soja foram descobertos para a FAS.
ABDELNOOR, R. V.   +10 more
core  

Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Structural connectivity affects wildlife movement between habitat patches, contributing to the persistence of wildlife populations and their resilience to human‐induced and environmental changes. However, its importance to wildlife population persistence remains unclear, particularly in fragmented landscapes, where there are additional co ...
Cindy M. Hurtado   +12 more
wiley   +1 more source

Genética de la resistencia de la papa (<i>Solanum tuberosum</i>) a patógenos. Estado de arte

open access: yesAgronomía Colombiana, 2008
<p align="justify"> Este artículo presenta una revisión de la resistencia en papa a patógenos, en cuanto a genes mapeados y clonados, y <i>loci</i> de rasgos cuantitativos (QTL) mapeados, en la que se resaltan las relaciones entre ...
Mosquera Teresa   +4 more
doaj  

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