A5067078779- Sesquiterpenes and Asteraceae Studies
- Plant Diversity and Evolution
- Botany, Ecology, and Taxonomy Studies
- Plant Toxicity and Pharmacological Properties
- Phytochemistry Medicinal Plant Applications
- Plant and animal studies
- Agricultural and Food Sciences
- Biological Control of Invasive Species
- Fern and Epiphyte Biology
- Growth and nutrition in plants
- Essential Oils and Antimicrobial Activity
- Plant Pathogens and Resistance
- Banana Cultivation and Research
- Botany and Plant Ecology Studies
- Allelopathy and phytotoxic interactions
- Natural product bioactivities and synthesis
- Urban Arborization and Environmental Studies
- Ecology and Vegetation Dynamics Studies
- Potato Plant Research
- Ethnobotanical and Medicinal Plants Studies
- Plant Disease Resistance and Genetics
- Plant Taxonomy and Phylogenetics
- Flowering Plant Growth and Cultivation
- Phytochemistry and Biological Activities
- Botanical Research and Applications
Brazilian Agricultural Research Corporation
2016-2025
Universidade Federal de Pelotas
2006-2024
National Council for Scientific and Technological Development
2024
Weatherford College
2023
Universidade Federal do Rio Grande do Sul
2020-2021
Botanical Research Institute of Texas
2021
Universidade de São Paulo
2009-2019
University of Gothenburg
2019
Apis Flora (Brazil)
2018
Universidade Federal de Santa Catarina
2016
Significance Large floristic datasets that purportedly represent the diversity and composition of Amazon tree flora are being widely used to draw conclusions about patterns evolution plant diversity, but these fundamentally flawed in both their methodology resulting content. We have assembled a comprehensive dataset Amazonian seed species from published sources includes falsifiable data based on voucher specimens identified by taxonomic specialists. This growing list should serve as basis...
A high level of endemic flowering plant species is highlighted for the first time southern Brazilian flora. We present a comprehensive list 1020 taxa and analyse their distribution in different biomes, focusing on Subtropical Highland Grasslands (Campos de Cima da Serra). Considering all biomes represented Brazil, c. 13% are endemic, which accounts more than 5% total Brazil 12% from Atlantic Forest hotspot. Like High Altitude Tropical that found further north south-eastern region, home to an...
Agarista (Ericaceae) is a Neotropical genus of subshrubs, shrubs and trees in Ericaceae, highly associated with tropical mountainous environments, especially the Campos Rupestres Cerrado domain Espinhaço Range, southeast Brazil. The comprises 35 species six varieties. Minas Gerais state hosts high richness genus, comprising 16 species, eight them endemic. Here we indicate two partially geographically overlapping morphologically characterized varieties, separable primarily by indumentum on...
The studies on Calea subg. Meyeria (Neurolaeneae, Asteraceae), a group from open vegetation in Southeastern South America, recently resulted the description of novel species and nothospecies. Continued progress nomenclatural taxonomic this subgenus is presented here. A comprehensive bibliography for described section was compiled revised to allow proposition changes. All type specimens were consulted either person or using high-resolution digital images. Based these efforts, we propose...
ABSTRACT ‘BRS Gaia’ is a red-skinned potato cultivar with high dry matter and attractive tuber appearance. Its tubers are oval, shallow eyes, slightly rough skin, yellow flesh low susceptibility to post-harvest greening. The vine maturity dormancy medium. It moderately susceptible late early blight. has an intermediate level of resistance (tolerance) bacterial wilt, which gives it significant comparative advantage over traditional cultivars for disease management in areas infested by the...
The investigation of natural products is a valid strategy to identify compounds active against coronaviruses. We herein report the screening Baccharis and Campovassouria plant species murine betacoronavirus hepatitis virus-3 (MHV-3), assays that can be carried out in BSL-2 facilities. These genera occur exclusively Americas are source secondary metabolites with antiviral anti-inflammatory activity. cruciata emerged as most from screening, its phytochemical afforded discovery new isomer...
This paper provides a comparative account of the essential oil chemical composition and biological activities five Brazilian species Baccharis (Asteraceae), namely B. microdonta, pauciflosculosa, punctulata, reticularioides, sphenophylla. The compositions three (B. sphenophylla) are reported for first time. Analyses by GC/MS showed notable differences in species. α-Pinene was observed highest concentration (24.50%) reticularioides. Other major compounds included α-bisabolol (23.63%)...
This study provides a comprehensive account of the various types calcium oxalate crystals found in genus Baccharis and assesses exceptional value crystal macropatterns for taxonomy genus. The morphotype, occurrence, chemical composition stems leaves are studied. 44 species included this were selected based on broad phylogeny-based sampling covering seven subgenera 31 sections. These chosen to represent all main phylogenetic lineages Baccharis; thus, also represents coverage concerning...
Asteraceae is the world’s richest plant family and found on all continents, in environments ranging from coast to highest mountains. The shows growth forms and, as other angiosperm families, species richness concentrated tropical regions. South America has diversity of world, yet taxonomic distributional knowledge gaps remain. This study compiles an updated catalog native America, based national regional checklists ongoing large-scale flora projects. resulting checklist includes a total...
Este trabalho teve como objetivo investigar as plantas medicinais utilizadas por idosos assistidos em uma Unidade Básica de Saúde Pelotas-RS, com diagnóstico Diabetes mellitus, terapia complementar no tratamento dos sintomas da doença. Caracterizou-se pesquisa qualitativa, realizada julho 2009, município Pelotas-RS. Foram entrevistados 18 idade entre 60 e 77 anos, sendo 14 do sexo feminino. Os participantes citaram 20 mellitus. Entre estas, mais citadas para diminuir os níveis glicose sangue...
Abstract We report for the first time presence of cluster crystals calcium oxalate within glandular trichomes and oil bodies in mesophyll Baccharis species. Moreover, comparative leaf anatomy micro‐morphology six species , namely B. illinita microdonta pauciflosculosa punctulata reticularioides sphenophylla is investigated by light scanning electron microscopy. The studied exhibited differences their anatomical features such as morphology cuticle, type occurrence stomata, or absence...
Abstract We present the hitherto most comprehensive phylogenetic hypothesis for Baccharis . Our results confirm that subtribe Baccharidinae is a monogeneric group and support broad circumscription of as monophyletic with inclusion all genera have been previously segregated from it ( Baccharidastrum , Baccharidiopsis Heterothalamulopsis Heterothalamus Lanugothamnus ). provide lists accepted synonymized infrageneric taxa. Seven main lineages are recognized, which we treat subgenera. Subgenera...
Baccharis belongs to the Asteraceae family and comprises a number of medicinal species. brevifolia DC., B. microdonta pauciflosculosa trilobata A.S. Oliveira & Marchiori, which are popularly known in Brazil as "vassouras" ("broom"), all found Southern Brazil. The anatomical features leaf stem were investigated by employing usual light scanning electron microtechniques, means differentiating taxa. following characteristics can be considered diagnostic: occurrence type stomata, midrib, crystal...
RESUMO Agentes químicos produzidos em algumas plantas podem provocar alterações no desenvolvimento de outras ou até mesmo outros organismos. Ensaios laboratoriais demonstrar os resultados destas interações, porém, sem considerar a ação do ambiente. Com este trabalho objetivou-se identificar influência extratos vegetais 3 espécies conhecidas Brasil popularmente como boldo sobre o Allium cepa. Os bioensaios foram conduzidos germinador 25° C, com extrato aquoso obtido por infusão folhas frescas...
RESUMO Foi realizado um estudo sobre a diversidade taxonômica de Baccharis sect. Caulopterae DC. no estado do Rio Grande Sul, Brasil. É apresentada descrição morfológica com ênfase nas espécies ocorrentes na área estudo. Três lectótipos são designados e sete novos sinônimos reconhecidos. A ocorrêcia 22 foi confirmada, sendo que duas representam novas ocorrências. Chave descrições morfológicas para o reconhecimento das fornecidas, adicionalmente apresentados ilustrações, dados referentes à...