A5062579529- Plant Virus Research Studies
- Insect-Plant Interactions and Control
- Insect symbiosis and bacterial influences
- Plant Pathogenic Bacteria Studies
- Nematode management and characterization studies
- Plant Parasitism and Resistance
- Agronomic Practices and Intercropping Systems
- Plant and Fungal Interactions Research
- Agricultural pest management studies
- Insect and Pesticide Research
- Cassava research and cyanide
- Cocoa and Sweet Potato Agronomy
- Plant tissue culture and regeneration
- Plant-Microbe Interactions and Immunity
- Plant Disease Resistance and Genetics
- Insect Resistance and Genetics
- Banana Cultivation and Research
- Garlic and Onion Studies
- Plant Pathogens and Fungal Diseases
- Plant pathogens and resistance mechanisms
- Parvovirus B19 Infection Studies
- Essential Oils and Antimicrobial Activity
- Insect Pest Control Strategies
- Plant and animal studies
- Insect behavior and control techniques
Universidade Estadual Paulista (Unesp)
2015-2025
Universidade Federal de Santa Catarina
2018
Agricultural Research Organization
2014
Whiteflies (Hemiptera: Aleyrodidae) are sap-sucking insect pests, and some cause serious damage in agricultural crops by direct feeding transmitting plant viruses. maintain close associations with bacterial endosymbionts that can significantly influence their biology. All whitefly species harbor a primary endosymbiont, diverse array of secondary endosymbionts. In this study, we surveyed 34 populations collected from the states Sao Paulo, Bahia, Minas Gerais Parana Brazil, for identification...
The whitefly Bemisia tabaci is a major cosmopolitan pest and comprises complex of more than 36 cryptic species that cause serious damage to agricultural crops worldwide. In this study, the Mediterranean B. tabaci, formerly known as Q biotype, was identified for first time in Brazil.Adult were collected from different localities hosts Rio Grande do Sul, southernmost state country borders Uruguay Argentina. Partial sequencing mitochondrial cytochrome oxidase I (mtCOI) gene indicated MED...
The Bemisia tabaci is a polyphagous insect and successful vector of plant viruses. B. species complex in Brazil native from the New World (NW) group, as well invasive species, Middle East-Asia Minor 1 (MEAM1) Mediterranean (MED) were reported. For better understanding distribution different four years after invasion Brazil, whiteflies collected 237 locations throughout country between 2013 2017, identified facultative endosymbionts detected. survey revealed that MEAM1 was prevalent found on...
Abstract Bemisia tabaci is one of the most important global agricultural insect pests, being a vector emerging plant viruses such as begomoviruses and criniviruses that cause serious problems in many countries. Although knowledge genetic diversity B. populations for controlling this pest understanding viral epidemics, limited information available on Brazil. A survey was conducted different locations São Paulo Mato Grosso states, phylogenetic relationships individuals from 43 sampled hosts...
ABSTRACT Potato is a vital food source worldwide, but its production frequently threatened by viral diseases. Tomato chlorosis virus (ToCV) primarily affects solanaceous crops, especially tomatoes. Although ToCV has been reported in potatoes, relevance this crop remains understudied Brazil. This study evaluated the incidence of major potato‐producing regions São Paulo state and identified predominant whitefly species. Transmission efficiency Bemisia tabaci MEAM1 MED, vertical transmission...
A necrose da haste soja é causada por um vírus do gênero Carlavirus transmitido pela mosca branca Bemisia tabaci, também infectante de feijão e identificado como Cowpea mild mottle virus (CpMMV). Neste trabalho foram realizados testes para determinação número moscas-brancas B. tabaci biótipo B necessários transmissão em feijoeiro soja. Na sequência dois outros testes, com 10 insetos planta. Avaliaram-se períodos acesso à aquisição (PAA) 'Jalo' 'Jalo', o efeito inoculação (PAI). Foram...
Fluorescence in situ hybridization (FISH) is a name given to variety of techniques commonly used for visualizing gene transcripts eukaryotic cells and can be further modified visualize other components the cell such as infection with viruses bacteria. Spatial localization visualization bacteria during process an essential step that complements expression profiling experiments microarrays RNAseq response different stimuli. Understanding spatiotemporal infections these agents biological aimed...
Bemisia tabaci (Genn.) is one of the most important pests in cultivated areas vegetables and ornamental crops around world. Based on mitochondrial cytochrome oxidize I (mtCOI) sequence, there evidence that B. should be considered a cryptic species complex 11 groups containing 24 species. Two groups, Middle East-Asia Minor 1 Mediterranean include biotypes B Q, respectively. In this study we evaluated mtCOI sequence populations collected sites state São Paulo, Brazil. Using PCR-RFLP with Taq...
Abstract Since the detection of Bemisia tabaci Middle East‐Asia Minor 1 (MEAM1) species in Brazil early 1990s, this whitefly has been predominant and main viral vector country. In work, whiteflies were collected from commercial soybean fields near far greenhouses where Mediterranean (MED) had previously detected infesting vegetable crops. Results indicated that MEAM1 was most sampling sites, while MED found colonizing plants open field conditions alone and/or with several places. Among...
Abstract Begomoviruses cause losses in several crops around the world. Whiteflies of Bemisia tabaci cryptic species MEAM1 and MED are efficient vectors begomoviruses. has been predominant Brazil since mid‐1990s. was detected 2014, then, high insect infestations have reported, mainly greenhouse production solanaceous crops. In this study, we compared transmission efficiency begomoviruses tomato severe rugose virus (ToSRV) mosaic (ToRMV) to ( Solanum lycopersicum ) bean golden (BGMV) common...
Garlic (Allium sativumL.) is a host to several viruses, most commonly those belonging theAllexivirus,Carlavirus, orPotyvirusgenera. Nine species distributed among these three genera have been reported in Brazil: two within carlaviruses, potyviruses, and five allexiviruses. To quantify the prevalence of young leaves from 520 plants (plants either symptomatic or asymptomatic) were collected commercial fields grown four Brazilian states analyzed using universal species-specific primers via...
Cowpea mild mottle virus (CPMMV, genus Carlavirus, family Betaflexividae) is an economically important infecting soybeans in Brazil, where it was initially identified 1983. CPMMV transmitted by the whitefly, Bemisia tabaci, and occasionally seeds. Over last three decades, most invasive B. tabaci Middle East–Asia Minor 1 (MEAM1), lately Mediterranean (MED) cryptic species, have replaced indigenous species with MEAM1 being predominant. In this study, we investigated transmission properties of...
Garlic (Allium sativum L.) can be infected by several viruses of the genera Allexivirus, Carlavirus, and Potyvirus (3). common latent virus (GarCLV) Shallot (SLV) are most important Carlavirus species infecting garlic, but only GarCLV has been described on garlic in Brazil. Seven hundred thirty-one samples showing mosaic symptoms chlorotic streaking were collected from states São Paulo (São Manuel), Minas Gerais (Santa Juliana Gotardo), Goiás (Campo Alegre Ipameri), Paraná (Guarapuava...
Um levantamento para avaliar a ocorrência de begomovírus nas culturas pimentão e tomateiro no estado São Paulo foi realizado entre janeiro/2007 julho/2008. O DNA total amostras (710) (103) extraído presença testada por PCR. Paralelamente, as mesmas foram avaliadas amplificação círculo rolante (RCA) seguidas PCR, algumas positivas analisadas RCA-RFLP com enzima restrição HpaII, fim se conhecer variabilidade genética dos isolados. Os resultados demonstraram que, técnica 99 (13,94%) 39 (37,86%)...
O Potato virus Y (PVY) e Pepper yellow mosaic (PepYMV) são as únicas espécies de potyvirus encontradas em pimenta pimentão no Brasil. A região codificadora para a proteína capsidial isolados PepYMV PVY coletados pimentão, foi avaliada quanto à variabilidade presença motivos específicos aos potyvirus. identidade da seqüência aminoácidos na CP entre os 93% 100%, enquanto que 94% 98%. Entre vírus esta variou 73% 79%. Foi observada nas regiões conservadas CP. Todos seqüenciados não apresentaram...