A5055828917- Plant Virus Research Studies
- Phytoplasmas and Hemiptera pathogens
- Plant Pathogenic Bacteria Studies
- Cocoa and Sweet Potato Agronomy
- Plant and soil sciences
- Plant pathogens and resistance mechanisms
- Plant-Microbe Interactions and Immunity
- Plant Pathogens and Fungal Diseases
- Insect-Plant Interactions and Control
- Banana Cultivation and Research
- Nematode management and characterization studies
- Plant and Fungal Interactions Research
- Agricultural pest management studies
- Genetically Modified Organisms Research
- Agronomic Practices and Intercropping Systems
- Bacteriophages and microbial interactions
- Psidium guajava Extracts and Applications
- Studies on Chitinases and Chitosanases
- Agricultural and Food Production Studies
- Vector-Borne Animal Diseases
- Plant Disease Resistance and Genetics
- Plant Pathogens and Resistance
- Plant tissue culture and regeneration
- Postharvest Quality and Shelf Life Management
- Legume Nitrogen Fixing Symbiosis
Universidad Mayor
2023
Universidade Federal de Viçosa
2006-2021
Colombian Corporation for Agricultural Research - AGROSAVIA
2014-2021
ABSTRACT The incidence of begomovirus infections in crop plants sharply increased Brazil during the 1990s following introduction invasive B biotype whitefly vector, Bemisia tabaci . It is believed that this transmitted begomoviruses from noncultivated to species with greater efficiency than indigenous B. biotypes. Either through rapid host adaptation or selection pressure genetically diverse populations hosts, over past 20 years various previously unknown have became progressively more...
A survey of begomoviruses infecting leguminous weeds (family Fabaceae) was carried out in four states northeastern Brazil. total 26 full‐length begomovirus components (19 DNA‐A and seven DNA‐B, with three pairs cognate B components) were amplified using rolling‐circle amplification, then cloned sequenced. Sequence analysis indicated the presence six species, them novel. In phylogenetic five viruses clustered other Brazilian begomoviruses, but one ( Euphorbia yellow mosaic virus, EuYMV) from...
Abstract Begomoviruses (single-stranded DNA plant viruses) are responsible for serious agricultural threats. Begomovirus populations exhibit a high degree of within-host genetic variation and evolve as quickly RNA viruses. Although the recombination-prone nature begomoviruses has been extensively demonstrated, relative contribution recombination mutation to begomovirus not assessed. We estimated variability datasets from around world. An uneven distribution across length cp rep genes due was...
Begomoviruses are dicot-infecting, whitefly-transmitted viruses with a genome comprised of one or two molecules circular, single-stranded DNA. In Brazil, tomato-infecting begomoviruses have emerged as serious pathogens since the introduction new biotype insect vector in mid-1990’s. Tomato rugose mosaic virus (ToRMV) and severe (ToSRV) often found tomato fields. The complete sequence DNA-B components ToSRV ToRMV show an identity 98.2%. Additionally, high nucleotide (96.2%) between their...
The biological and molecular characterization of six isolates a new Cowpea mild mottle virus strain ( CPMMV ; C arlavirus, B etaflexiviridae ) are reported. Soybean plants with mosaic stem necrosis were collected in ahia, G oiás, M ato rosso inas erais states, razil. Complete genomes the 8180–8198 nucleotides (nt) long, excluding 3′‐polyadenylated tail, have 67–68% nt sequence identity hana isolate , only for which genome has previously been sequenced. replicase 60–61% isolate, coat protein...
Viroses causadas por vírus do gênero Badnavirus são responsáveis grandes prejuízos à cultura inhame no Nordeste brasileiro. O conhecimento da variabilidade destes patógenos pode fornecer informações importantes sobre seu potencial evolutivo, permitindo a elaboração de melhores estratégias manejo doença. A análise 425 amostras foliares coletadas em três estados brasileiro, 2010, revelou uma alta incidência (93,3%) badnaviroses. Para avaliar genética dos badnavírus infectando inhame, um...
Plantas de feijão-vagem do cultivar Novirex apresentando mosaico e enrolamento vagens, sem deformação foliar evidente, foram coletadas em 2002 Cordisburgo, MG. Estudos preliminares identificaram o vírus como um isolado Bean rugose mosaic virus (BRMV). Este trabalho relata a caracterização isolado, por meio produção avaliação anti-soro, determinação da gama hospedeiros, estudo transmissão besouros crisomelídeos estimativa perdas feijoeiro resultado infecção isolada ou conjunto com common...