A5048728584- Cocoa and Sweet Potato Agronomy
- Plant Pathogens and Fungal Diseases
- Plant Pathogens and Resistance
- Yeasts and Rust Fungi Studies
- Food Chemistry and Fat Analysis
- Growth and nutrition in plants
- Mycorrhizal Fungi and Plant Interactions
- Banana Cultivation and Research
- Phytochemical compounds biological activities
- Agricultural and Food Sciences
- Plant Pathogenic Bacteria Studies
- Plant Disease Resistance and Genetics
- Plant-Microbe Interactions and Immunity
- Botanical Research and Applications
- Plant tissue culture and regeneration
- Fish biology, ecology, and behavior
- Plant and Fungal Species Descriptions
- Papaya Research and Applications
- Phytoplasmas and Hemiptera pathogens
- Environmental and biological studies
- Essential Oils and Antimicrobial Activity
- Phytochemistry Medicinal Plant Applications
- Plant and animal studies
- Pineapple and bromelain studies
- Mycotoxins in Agriculture and Food
Comissão Executiva do Plano da Lavoura Cacaueira
2014-2024
Universidade Estadual de Santa Cruz
2010-2023
Instituto Federal de Educação, Ciência e Tecnologia Baiano
2022
CNR de la Résistance aux Antibiotiques
2021
Ministério da Agricultura
2020
National Council for Scientific and Technological Development
2019
Universidade Federal de Mato Grosso
2014
Universidade Federal do Recôncavo da Bahia
2014
Universidade Federal de Pernambuco
2014
Secretaria da Educação do Estado da Bahia
2012
Abstract Knowledge about the Brazilian fungal diversity was, until 2010, recorded in few taxonomy and ecology publications, as well a handful of species lists. With publication Catálogo de Plantas e Fungos do Brasil continued availability an online list, it has been possible to aggregate this dispersed knowledge. The version presented here adds 2,111 names 3,608 listed 2010. A total 5,719 fungi distributed 1,246 genera, 102 orders 13 phyla represents considerable increase over last five...
ABSTRACT Phytophthora capsici is a diverse species causing disease on broad range of both temperate and tropical plants. In this study, we used cultural characteristics, amplified fragment length polymorphism (AFLP), DNA sequence analyses the ribosomal internal transcribed spacer (ITS) region mitochondrial cytochrome oxidase II (cox II) genes to characterize isolates from wide host species. All but one isolate grew at 35 degrees C, while all did not. two formed chlamydospores, There was...
Black pod disease, caused by Phytophthora species, is among the main limiting factors of cacao (Theobroma L.) production. High incidence levels black disease have been reported in Brazil, being induced capsici, citrophthora, heveae, and palmivora. To assess diversity species affecting 40 new isolates were obtained from pods exhibiting symptoms collected different smallholder farms 2017. Further, ten cacao-infecting morphologically identified as P. citrophthora palmivora molecularly...
Resistant cacao genotypes are the best measure to control Witches' broom disease of cacao. To ensure efficiency, pathogen variability in region Bahia must be investigated. The pathogenic Moniliophthora perniciosa inocula from nine municipalities was analyzed: Ilhéus, Floresta Azul and Jussari (agroecological zone Almada); Ipiaú, Itagibá Jitaúna Ipiaú), Camacan, Santa Luzia Pau Brasil Camacan), by inoculating progenies Sca 6, ICS 1 SIC 23 seedlings with 2 x 105 basidiospore.mL-1 inoculum...
In the present study, occurrence of aflatoxins (AFs) and ochratoxin A (OTA) was evaluated in 123 samples cocoa beans produced five Brazilian states. The presence these mycotoxins determined by high-performance liquid chromatography with fluorescence detection (HPLC-FLD) after immunoaffinity column clean-up. mean level total AFs 5.7 μg.kg-1. Four (3.3%) exceeded maximum limit 10 μg.kg-1 established legislation for AFs. OTA contamination 1.2 μg.kg-1, none legislation. co-occurrence observed...
The witches' broom disease caused by the fungus Crinipellis perniciosa is main phytossanitary constraint for cacao production in Brazil. integrated management of involves resistance as one components. breeding program conducted Brazilian Institution, CEPLAC directed toward pyramidation genes from different sources to achieve a more durable resistance. This study aimed identify progenies accessions collected basins ten Amazonian rivers and compared Peruvian clones 'Scavina 6' 'Sacavina 12'....
The known sources of resistance to witches' broom (WB), a severe disease cacao, are limited. Aiming identify families and parents resistant Moniliophthora perniciosa, population 22 was evaluated by assessing the number brooms formed per tree during 10 years under field conditions. established in randomized blocks with three replications 12 plants each. Significant differences were observed among families. most outstanding NA33 x RB39 P4B, which presented lowest WB incidence years. increase...
The objective of this work was to identify genotypes with high general combining ability for resistance witches'-broom (Moniliophthora perniciosa) in populations formed from a first cycle recurrent selection. Highly productive and resistant clones different origins were interbred using the North Carolina II design. SCA 6, CSUL 7, RB 39, CEPEC 89, OC 67, BE 4, EEG 29 ICS 98 used as paternal parents, while maternal ones NA 33, CCN 10, IMC P 4B, 51, 86, SGU 54 9. Twenty days after germination,...
Black pod disease, caused by Phytophthora spp., is one of the main diseases that attack cocoa plantations. This study validated, association mapping, 29 SSR molecular markers flanking to QTL (Quantitative Trait Loci) associated with palmivora Butler (Butler) (PP) resistance, in three local ancient varieties Bahia (Comum, Pará, and Maranhão), have a high potential production gourmet chocolate. Four loci resistance PP were detected, two on chromosome 8, explaining 7.43% 3.72% Phenotypic...
A maioria dos fungos tem a função de decompor moléculas orgânicas complexas possibilitando o aporte nutrientes para solo pelo processo ciclagem e fertilização. Este estudo objetiva analisar riqueza, freqüência, constância similaridade entre os decompositores da serapilheira três plantas endêmicas Mata Atlântica do Sul Bahia em áreas. Folhas decomposição foram coletadas no período dezembro/2007 junho/2008, lavadas, colocadas câmaras-úmidas incubadas na temperatura ambiente. Obteve-se uma...
O cacaueiro (Theobroma cacao) é alvo de diversas enfermidades, sendo que a podridão-parda, causada por Phytophthora spp. principal delas mundialmente. Entretanto, no Brasil, vassoura-de-bruxa Crinipellis perniciosa, mais devastadora. A busca fontes resistência às doenças etapa básica para programas melhoramento genético e, nesse sentido, este estudo objetivou caracterizar quantitativamente uma progênie oriunda do cruzamento entre os clones SIC-864 e CCN-51, dois genótipos contrastantes...
A gomose, causada por Phytophthora sp., é a mais importante enfermidade da acácia-negra (Acacia mearnsii) no Rio Grande do Sul, Brasil. identificação específica permanecia indeterminada. Procurou-se, então, identificar espécie de causadora desta doença usando características fisiomorfológicas e estudos moleculares baseados seqüenciamento das regiões Internal Transcribed Spacer (ITS). patogenicidade dos isolados estudados para foi confirmada. Os confirmaram nicotianae como correta identidade...
O objetivo deste trabalho foi avaliar o potencial do uso de indutores resistência bióticos e abióticos na redução da podridão radicular em mamoeiro. Mudas mamoeiro foram pulverizadas com os fungicidas fosetil-Al, metalaxil Mancozeb (2 g L-1), fosfito potássio (2,5 5 mL ácido salicílico 0,15 0,30%, Reforce (indutor comercial) + a 5%, acibenzolar-S-metil (ASM) (0,15 0,30 indutor biótico Saccharomyces cerevisiae (3 6 três seis dias antes pulverização 1 suspensão 10(5) zoósporos mL-1...
Endocalyx melanoxanthus var. was recovered during a survey of microfungi on palms in Atlantic Rainforest areas Northeast Brazil. Three new hosts were identified for the fungus, newly reported
To characterize the gradient of resistance to black pod disease experimentally, leaf disk assay was applied 217 cocoa genotypes. The parameters time interval, number leaves evaluated per genotype and distribution experimental treatments were evaluated. Significant differences between genotypes found, resulting in grouping five homogenous groups (p < 0.01). In assessments with test, seven days after inoculation, F value highest days, clearly separating resistant from susceptible There no...