Publications by authors named "A L Firmino"

Article Synopsis
  • Chikungunya virus (CHIKV), transmitted by Aedes mosquitoes, has significantly affected Brazil since its introduction in 2013, leading to high case numbers and severe health outcomes, particularly in Ceará state.
  • An extensive study utilized genomic sequencing, vector data, and epidemiological records to analyze over 250,000 confirmed cases of chikungunya across Brazil from 2013 to 2022, identifying seven distinct epidemic waves.
  • The analysis revealed that females were more likely to be infected than males in Ceará, with a cumulative case-fatality ratio of 1.3 deaths per 1000 cases, and highlighted the recurrence of chikungunya in specific states like Ceará, Tocantins, and Pernambuco
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Cotton is the most important crop for fiber production worldwide. However, the cotton boll weevil (CBW) is an insect pest that causes significant economic losses in infested areas. Current control methods are costly, inefficient, and environmentally hazardous.

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Anthracnose, caused by fungi of the genus is present in the main areas where rubber trees () are planted. Thus, considering that biological agents can be an alternative for disease control, the present study aimed to carry out initial studies to investigate the response of rubber tree seedlings inoculated with Colletotrichum and treated with saprobes fungi from the semiarid region of Northeast Brazil (, , and ). Seedlings of the rubber tree clone RRIM600 were sprayed with biocontrol agents as preventive and curative treatments seven days before and after inoculation, respectively.

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Commercial fig tree cultivation in Brazil involves a single cultivar, 'Roxo-de-Valinhos'. The use of a single cultivar results in serious diseases and related problems. The aim of this study was to characterize fig accessions by analyzing the natural root-knot nematode and leaf rust incidence in relation to the epigenomic profile of the plant, since epigenetic variations affect plant-pathogen interactions.

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