A5063112493- Plant Pathogens and Fungal Diseases
- Yeasts and Rust Fungi Studies
- Forest Insect Ecology and Management
- Mycorrhizal Fungi and Plant Interactions
- Biofuel production and bioconversion
- Plant Pathogenic Bacteria Studies
- Forest Ecology and Biodiversity Studies
- Enzyme Production and Characterization
- Banana Cultivation and Research
- Plant-Microbe Interactions and Immunity
- Fern and Epiphyte Biology
- Microbial Metabolites in Food Biotechnology
- Plant Diversity and Evolution
- Phytochemical compounds biological activities
- Coleoptera: Cerambycidae studies
- Leaf Properties and Growth Measurement
- Enzyme-mediated dye degradation
- Plant Pathogens and Resistance
- Plant Disease Resistance and Genetics
- Enzyme Catalysis and Immobilization
- Biological Control of Invasive Species
- Fungal Biology and Applications
- Plant and animal studies
- Heavy Metals in Plants
- Plant Disease Management Techniques
Universidade Federal de Viçosa
2012-2025
Indian Institute of Technology Guwahati
2024
Agricultural Research Service
2024
Weatherford College
2024
Universidade Federal de Mato Grosso
2015-2019
Forest Science and Research Institute
2019
Ibaraki University
2011
AgriBio
2011
Royal Netherlands Academy of Arts and Sciences
2011
Murdoch University
2011
Novel species of fungi described in this study include those from various countries as follows: Australia , Chaetomella pseudocircinoseta and Coniella pseudodiospyri on Eucalyptus microcorys leaves, Cladophialophora eucalypti Teratosphaeria dunnii Vermiculariopsiella Cylindrium grande Hypsotheca eucalyptorum grandis Elsinoe salignae saligna Marasmius lebeliae litter regenerating subtropical rainforest, Phialoseptomonium (incl. gen. nov.) × camaldulensis Phlogicylindrium pawpawense...
Novel species of microfungi described in the present study include following from Australia: Bagadiella victoriae and koalae on Eucalyptus spp., Catenulostroma eucalyptorum laevopinea, Cercospora eremochloae Eremochloa bimaculata, Devriesia queenslandica Scaevola taccada, Diaporthe musigena Musa sp., acaciigena Acacia retinodes, Leptoxyphium kurandae Neofusicoccum grevilleae Grevillea aurea, Phytophthora fluvialis water native bushland, Pseudocercospora cyathicola Cyathea australis,...
Species in the genus Calonectria (Hypocreales) represent an important group of plant pathogenic fungi that cause serious losses to crops tropical and subtropical climates. leaf blight is currently one main impediments Eucalyptus cultivation Brazil, various species have been associated with this disease. Since most previous identifications were solely based on morphological characters, much published literature needs be re-evaluated. The aim study was thus identify determine phylogenetic...
Biomass enzymatic hydrolysis depends on the pretreatment methods employed, composition of initial feedstock and enzyme cocktail used to release sugars for subsequent fermentation into ethanol. In this study, sugarcane bagasse was pretreated with 1% H2SO4 NaOH biomass saccharification performed 8% solids loading using 10 FPase units/g extract from Chrysoporthe cubensis three commercial cocktails a comparative study. Overall, best glucose xylose obtained alkaline bagasse. The C. promoted...
ABSTRACT Myrtle rust caused by Austropuccinia psidii is one of the most important diseases affecting eucalypts ( Eucalyptus spp. and Corymbia spp.) in Brazil. Asexual spores myrtle pathogen, urediniospores, give rise to infection young tissues (e.g., leaf, stem, flower fruit) myrtaceous hosts. Symptoms disease are necrosis leaf deformation, death apical shoots, whereas primary diagnostic signs yellow which formed pathogen on infected organs. Occasionally, teliospores brown pustules, usually...
Novel species of fungi described in this study include those from various countries as follows: Antarctica, Leuconeurospora bharatiensis accumulated snow sediment sample. Argentina, Pseudocercospora quetri on leaf spots Luma apiculata. Australia, Polychaetomyces verrucosus submerged decaying wood sea water, Ustilaginoidea cookiorum Scleria levis, Xylaria guardiae endophyte healthy leaves Macaranga tanarius. Belgium, Iodophanus taxi Taxus baccata. Belize, Hygrocybe mirabilis soil. Brazil,...
The pattern of Cylindrocladium pteridis adhesion, germination and penetration in eucalypt leaves was assessed using scanning electron microscopy. effects inoculum concentration, leaf wetness period, plant age branch position cylindrocladium blight defoliation severity were greenhouse studies two Eucalyptus grandis × E. urophylla hybrid clones. Penetration occurred through stomata, there no difference the number penetrations between young old leaves. Percentage area with lesions increased...
Este trabalho objetivou estudar a disseminação de Ralstonia solanacearum por meio mudas e avaliar os efeitos da murcha-bacteriana sobre produtividade na clonagem do eucalipto. Amostras minicepas, miniestacas sete clones foram avaliadas quanto à presença infecções bacterianas. Em experimento específico, avaliou-se o substrato enraizamento como fonte inóculo patógeno. intervalos mensais, determinaram-se médio índice (IP), visando doença minicepas. Constatou-se patógeno em minicepas cinco...
Calonectria pteridis is one of the most important causal agents leaf blight (CLB) Eucalyptus spp. in Brazil, which a limiting factor for growth plantations. In this study we developed standard procedures vitro mass spore production and inoculation C. screening plant species clones resistance to CLB. The isolates used were identified using similarity DNA sequence reference strains. Among six media tested, glucose asparagine agar induced highest sporulation significantly enhanced was found by...
is a destructive fungal pathogen of sweetpotato (
Abstract Ceratocystis fimbriata is an important pathogen with a wide host range that causes xylem lesions, wilt and death in different plant species. More adapted populations of C . have probably been selected to specific hosts high genetic physiological variability can be found within the populations. Thus, molecular analysis inoculation studies were performed investigate isolates complex obtained from species geographic regions Brazil. The minimum spanning tree based on 14 simple‐sequence...
Summary The genus M etrosideros includes several tree, shrub and vine species, native to the P acific Islands. Seedlings from 25 seed lots of polymorpha two . tremuloides with symptoms root rot, stem girdling, wilting round, purple leaf spots were observed in F orestry N ursery at U niversidade ederal de V içosa, B razil. In original disease site, seedling mortality reached up 71% 34% Single conidial cultures obtained infected leaf, samples used identify fungal species. Morphological...
Several species of Calonectria cause diseases on a wide range forest tree that are propagated either via seedlings or rooted cuttings. In nurseries these fungi damping-off, cutting and root rots, stem lesions, leaf blights. Recently sp. was isolated from cuttings Anadenanthera peregrina (Fabaceae), Piptadenia gonoacantha Azadirachta indica (Meliaceae) exhibiting blight rot in nursery at the Universidade Federal de Viçosa, Brazil. Morphological comparisons DNA sequences three loci containing...
Calonectria leaf blight, caused by pteridis , is currently one of the main foliar diseases in eucalypt plantations Brazil. In warm and high rainfall regions, disease can be a limiting factor for production when planting susceptible genotypes. The most effective method controlling this field use resistant genotypes, which requires knowledge genetic variability aggressiveness pathogen population deployment plant resistance. This work evaluated diversity C. populations obtained from infected...
Summary Calonectria leaf blight ( CLB ), caused by pteridis, is a major foliar disease of eucalypt plantations in warm and high rainfall regions Brazil. The use resistant genotypes the best method for control field, so identification sources resistance strategic long‐term genetic breeding programmes eucalypt. In this study, 13 species Eucalyptus 3 Corymbia to was evaluated spray inoculation spore suspension (1 × 10 4 conidia ml −1 ) pathogen, under controlled conditions. brassiana , E....
Summary To identify and implement Puccinia psidii control strategies, it is essential to understand the role of environmental factors on rust‐disease development spread among eucalypt ( Eucalyptus spp.) plantations. In this study, we evaluated wind dispersal P. urediniospores progress rust in a field trial Brazil. Urediniospores P . were trapped Burkard ® spore trap from July 2004 June 2005. evaluate rust, plots established March 2002 using clonal hedge scheme. The incidence both branches...
The Tectona grandis L.f. (teak) is an important forest species with high economy value in Asia, Africa, and Latin America. In America, Brazil one of the countries most cultivated areas. cultivation teak turns out to be challenging because its nutritional demand need for seedling production by clonal propagation that includes about 90 days nursery phase. optimization necessary better results enhance growth field. this way, well-known advantage using microorganisms promote plant development...