A5069732703- Plant Virus Research Studies
- Plant Pathogens and Fungal Diseases
- Banana Cultivation and Research
- Plant and animal studies
- Plant tissue culture and regeneration
- Cocoa and Sweet Potato Agronomy
- Growth and nutrition in plants
- Pineapple and bromelain studies
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Plant Disease Resistance and Genetics
- Plant Parasitism and Resistance
- Agricultural and Food Sciences
- Phytoplasmas and Hemiptera pathogens
- Nematode management and characterization studies
- Yeasts and Rust Fungi Studies
- Insect behavior and control techniques
- Plant Pathogenic Bacteria Studies
- Plant Disease Management Techniques
- Coffee research and impacts
- Forest Insect Ecology and Management
- Soybean genetics and cultivation
- Plant and Fungal Interactions Research
- Horticultural and Viticultural Research
- Essential Oils and Antimicrobial Activity
Southwest Bahia State University
2011-2024
Cambridge University Press
2021
New York University Press
2021
Institute of Entomology
2021
Universidade Federal de Mato Grosso do Sul
2017
Universidade Federal do Piauí
2017
Universidade Federal da Bahia
2015
Universidade de São Paulo
2002-2004
Methodist University of Piracicaba
2002-2004
Universidade Brasil
2003
Novel species of fungi described in this study include those from various countries as follows:
Fungos do gênero Trichoderma são largamente utilizados no biocontrole de fitopatógenos, além serem capazes estabelecer associações com plantas, aumentando seu potencial desenvolvimento.Este trabalho avaliou o desenvolvimento e qualidade mudas clonais Eucalyptus camaldulensis (clone 58) inoculadas duas espécies Trichoderma: T. harzianum virens, por diferentes métodos, a saber: tratamento das miniestacas; incorporação grãos arroz colonizados ao substrato; pulverização suspensão esporos e; adição
Abstract Cacao ( Theobroma cacoa L.) is an important tropical fruit tree used in chocolate production. Among the biotic problems interfering with production, phytopathogenic fungi stand out. During a visit to cocoa production areas municipality of Medicilândia, Pará, Brazil (Amazon region), we observed fruits dark lesions and greyish‐white cottony mycelia growth. In order determine aetiological agent's identity, extracted DNA amplified part TEF‐1α RBP2 genes compared them sequences GenBank...
In Brazil, passion flower is grown across almost the entire country. The predominant disease of crop fruit woodiness, caused by potyvirus cowpea aphid‐borne mosaic virus (CABMV), and transmitted aphids in a nonpersistent manner. reduces useful life orchard from 36 months to approximately 18 months. Up now, there has not been an efficient method for management. aim this work was evaluate efficiency systematic roguing diseased plants through weekly inspections, management field. latent...
The aim of this work was to evaluate the in vitro antimicrobial activity Schinopsis brasiliensis against certain phytopathogens agricultural interest.Ethanolic crude extracts were obtained and assayed Fusarium solani bacteria pertaining genera Xanthomonas, Pectobacterium, Ralstonia Acidovorax using broth micro-dilution technique.The results demonstrated a good aptitude S. inhibit growth majority evaluated phytopathogenic bacteria, with MIC values range from 312.5 10,000µg.mL - .Moreover,...
The Passion fruit woodiness virus (PWV) is the most important affecting passion (Passiflora edulis f. flavicarpa Deg.) crops in Brazil. main purpose of this work was to select mild strains PWV and evaluate their protective effect against a severe strain virus. Three were selected from outstanding plants found orchards severely affected by (F-101, F-102 F-103) three others obtained blisters formed vine leaves showing mosaic (F-99, F-144 F-145). evaluated for vines under greenhouse field...
The objective of the present study was to evaluate protection passion fruit plants against CABMV by using preparations from Agaricus brasiliensis and Lentinula edodes mushrooms. In experiments carried out in greenhouse, fruiting body extracts some isolates both mushrooms significantly reduced incidence plants. This protective effect occurred when plant leaves, pre-treated with extracts, were later inoculated mechanically virus. However, did not protect involving transmission aphid vectors....
During the spring of 2001, approximately 10 000 yellow passion flower plants, from two orchards in county Livramento de Nossa Senhora, Bahia State, Brazil, exhibited intense mosaic symptoms and drastic reduction leaf lamina plant development. A large population whiteflies ( Bemisia tabaci ) was also found colonizing plants. All field samples collected tested positive for Passion fruit woodiness virus DAS‐ELISA. Five out 20 plants inoculated with adult diseased developed 20–30 days after...
Symptoms of severe vein clearing, leaf rolling, and blistering were observed in cassava plants southwestern Bahia State, Brazil. The collected, vegetatively propagated, kept a greenhouse. Leaf samples tested positive for begomovirus infection by Polymerase chain reaction (PCR). Complete nucleotide sequences DNA-A DNA-B isolate PSLDV-Man04 revealed 99.89 % 96.2 identity, respectively, with the bipartite passionfruit distortion virus (PSLDV) genome. This PSLDV was experimentally transmitted to...
Severe mosaic symptoms, accompanied by yellow spots, abnormally small leaves, fruit malformation and cracking, reduced plant growth, high levels of whitefly (Bemisia tabaci MEAM1) infestation were observed in passionflower (Passiflora edulis) orchards southwestern Bahia, Brazil. The aim this work was to identify the species begomovirus infecting passionflowers, its prevalence spatial temporal dynamics disease. Leaf samples from symptomatic plants collected at 57 located ten counties...
Brazil is considered the main center of genetic diversity and greatest worldwide producer passion fruit. Passionfruit woodiness virus (Cowpea aphid born mosaic virus) an important pathogenic agent fruit crop, causing severe losses in yield. Wild species Passiflora are valuable sources resistance to this disease. Interspecific crosses a promising method incorporate genes commercial (Passiflora edulis Sims.), despite problems with male sterility developed hybrids. The objective present work...
Amostras de urediniósporos ferrugens das espécies Melampsora epitea Thum., medusae Thuem., Hemileia vastatrix Berk., Uromyces appendiculatum Pers., Puccinia sorghi Schwein., Tranzschelia discolor Fuckel e Phakopsora euvitis Ono, coletadas dos hospedeiros, chorão (Salix sp.), álamo (Populus deltoides Bartr. Ex. Marsh), cafeeiro (Coffea arabica L.), feijoeiro (Phaseolus vulgaris milho (Zea mays pessegueiro (Prunus persicae L.) videira (Vitis vinifera respectivamente, foram processadas 3...
Diversos fatores podem interferir na qualidade do café, especialmente aqueles relacionados às etapas pós-colheita de processamento e secagem. Algumas espécies fungos se associar a grãos café durante pós-colheita, podendo ocasionar alterações indesejáveis. O objetivo deste estudo foi avaliar influência dos processamentos via seca (natural), seco em terreiro terra, úmida (despolpado), cimento, tradicionalmente empregados região sudoeste da Bahia, incidência beneficiados produzidos safra...
Brazil is the world's largest producer of passion fruit, with a planted area about 37,000 ha, and total annual yield approximately 500,000 tonnes. Ninety-seven percent production represented mainly by yellow fruit (Passiflora edulis f. flavicarpa). In September 2011 were found rot symptoms in region Tanhaçu, BA/Brazil (Fig. 1). Isolations from naturally infected branches made carrot disc method (Moller & DeVay, The discs carrots taped together incubated moist chamber at 25 ± 2°C for one...
The main objective of the present study was to evaluate effect sunhemp (Crotalaria juncea) host species on protective ability two mild strains Passion fruit woodiness virus (PWV), named F-101 and F-144, which had failed protect passion flowers (Passiflora edulis f. flavicarpa) in previous experiments. nucleotide sequences capsid protein (CP) gene 3'-non-translated region (3'-NTR) these severe strain PWV-SP were compared confirm their relationship. results tests with plants greenhouse one...
This work was developed aiming the evaluation of pruning effect on yield and other agronomical characteristic cassava. The experiment carried out at experimental area Universidade Estadual do Sudoeste da Bahia, in Vitoria Conquista state using a randomized block design, with 13 experiments [1 treatment without pruning, 12 times, performed from June 2008 (213 days after planting) up to 2009 (543 planting), 30-day-interval among pruning). following characteristics were evaluated: tuberous...
ABSTRACT: Passion fruits (Passiflora edulis ) were found with symptoms of rot in the field, city Tanhaçu, Bahia. After isolating pathogen associated this rot, present study we aimed to characterize Ceratocystis isolate from passion fruit for better understanding pathosystem. Molecular characterization was done based on region ITS-5.8S rDNA. Pathogenic carried out seedlings and passionflower. colonization monitored by means scanning electron microscopy techniques (SEM). DNA analysis...
Abstract The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is one of the main pests fruit, worldwide, and use population suppression method with low environmental impact an increasingly strong requirement consumer market. aim this study was to evaluate effect mineral natural films on physical–chemical properties grapes ( Vitis vinifera L.), cultivar Itália, oviposition behaviour C. . Fruits were immersed in suspensions (100 200 g L −1 ) (kaolin Surround ® WP, kaolin 607, 608, 611...
RESUMO Objetivou-se com este trabalho avaliar o efeito de fosfito potássio sobre crescimento e a densidade micelial Fusarium solani isolado maracujazeiros. A verificação do F. consistiu na diluição 0, 1, 10, 50, 100, 250, 500, 750 1000 ppm produto em BDA, posterior avaliação da fungo. influência pH meio no solani, foi testada pela ácido clorídrico até obtenção dos valores idênticos àqueles das placas contendo as concentrações potássio. Após dez dias incubação medido mensuração realizada por...