A5053720338- Insect Pest Control Strategies
- Essential Oils and Antimicrobial Activity
- Insect and Pesticide Research
- Insect-Plant Interactions and Control
- Piperaceae Chemical and Biological Studies
- Phytochemistry Medicinal Plant Applications
- Traditional and Medicinal Uses of Annonaceae
- Allelopathy and phytotoxic interactions
- Phytochemistry and Biological Activities
- Phytochemical compounds biological activities
- Insect Resistance and Genetics
- Plant Toxicity and Pharmacological Properties
- Natural Compound Pharmacology Studies
- Natural product bioactivities and synthesis
- Insect Pheromone Research and Control
- Sesquiterpenes and Asteraceae Studies
- Ethnobotanical and Medicinal Plants Studies
- Plant biochemistry and biosynthesis
- Bioactive Natural Diterpenoids Research
- History of Medicine and Tropical Health
- Insect behavior and control techniques
- Plant and animal studies
- Wound Healing and Treatments
- Plant tissue culture and regeneration
- Agricultural pest management studies
Universidade Federal Rural de Pernambuco
2016-2025
Universidade Federal de Pernambuco
2010-2021
Centro de Estudos e Sistemas Avançados do Recife
2015-2021
Universidade Federal de Campina Grande
2021
University of British Columbia
2015
Centro Nacional de Sanidad Agropecuaria
2015
Universidade do Estado do Rio de Janeiro
2014
Institut Pasteur
2009
Universidade Federal do Ceará
1996
The relationship between chemical composition and feeding deterrent activity of seven essential oils is explored, including those from Syzygium aromaticum (L.) Merr. & Perry (Myrtaceae), Cinnamomum zeylanicum Blume (Lauraceae), Lavendula latifolia Medicus, angustifolia L., Mentha crispa arvensis L. piperita (Lamiaceae) against an important agricultural pest, the cabbage looper ( Trichoplusia ni Hübner, Noctuidae), using a leaf‐disc choice bioassay. Comparison ‘full mixtures' with...
Tetranychus urticae Koch (Acari: Tetranychidae) is an economically important pest of agricultural and ornamental crops worldwide. It has been shown that many natural plant-based pesticides have fewer side effects compared with synthetic chemicals. The essential oils plants broadly studied for pest-control, including toxic repellent effects, antifeedant, ovicidal, other properties. Essential from stems, flowers, leaves Piper marginatum Jacq. were evaluated in the laboratory regarding their...
Background/Objectives: This study aimed to develop gel nanoemulsions (NEs) of Brazilian essential oils (EOs) from Eugenia uniflora and Psidium guajava, as well perform chemical characterization investigate the antimicrobial activity EOs NEs. Results/Conclusions: The main compounds E. EO were curzerene (34.80%) germacrene B (11.92%), while those P. guajava β-caryophyllene (25.92%), β-selinene (22.64%), γ-selinene (19.13%). NEs had droplet sizes 105.30 99.50 nm polydispersity index (PDI)...
Abstract This study evaluated the potential cytotoxicity of natural diterpenoids kauren‐19‐oic acid (KA), 14‐hydroxy‐kaurane (1) and xylopic (2), semi‐synthetic derivatives KA (3–5) towards human cancer cell lines (K562, HL60, MDA‐MB435 SF295) lymphocytes. Mouse erythrocytes were used to verify a possible hemolytic activity Cytotoxicity mechanisms investigated in HL60 cells. showed moderate antiproliferative effect MTT assay all cells (IC 50 , 9.1–14.3 µg ml −1 ). However, appeared not...
The antibacterial potential of leaf's essential oil (EO) from Brazilian pepper tree (Schinus terebinthifolius Raddi) against staphylococcal isolates dogs with otitis externa was evaluated. minimum inhibitory concentration EO ranged 78.1 to 1,250 fg/mL. analyzed by GC and GC/MS cytotoxicity tests were carried out laboratory animals.
The aim of the present study was to evaluate insecticidal effects hexane and ethanolic extracts flowers fruits Muntingia calabura against diamondback moth, Plutella xylostella. leaf disc immersion methodology carried out assess on larvae pupae as well duration larval phase following feeding first instar treated discs for 72 h. All were toxic P. M. most xylostella with LC50 values 0.61 μg mL−1 1.63 respectively, followed by extract (LC50 = 5.5 mL−1) 18.9 mL−1). more compared cordycepin,...
Abstract The essential oils from two sources of resinous exudates Protium bahianum obtained by hydrodistillation were analyzed combinations GC and GC/MS. Twenty-two thirteen components identified in the fresh aged resins, comprising 95.8 % 98.6 %, oils, respectively. resin oil contained a high percentage oxygen-containing sesquiterpenes (85.4 %) with predominance β-(Z)-santalol acetate (83.1 %). In contrast, no detected it was constituted basically monoterpenes hydrocarbons (42.4 (27.7 %),...
O caruncho, Callosobruchus maculatus (Fabr.), é considerado a praga mais importante do caupi, Vigna unguiculata (L.) Walp., armazenado em regiões tropicais e subtropicais. Visando minimizar os efeitos indesejáveis dos inseticidas químicos sintéticos, o controle dessa com óleos de origem vegetal vem se constituindo numa alternativa promissora, baixo custo segura para aplicadores consumidores. Foram testados essenciais [(Cymbopogon martini (Roxb.) J.F. Watson], Piper aduncum L., hispidinervum...
The essential oils from leaves, stems and fruits of Piper divaricatum were analyzed by GC-MS. tissues showed high safrole content: leaves (98%), (87%) (83%), with yields 2.0, 4.8 1.7%, respectively. This is a new alternative source safrole, compound widely used as flavoring agent insecticide. leaf's oil antibacterial activity against gram-negative bacteria while was active Salmonella Typhimurium Pseudomonas aeruginosa. In addition, the study circadian rhythm concentration in negligible...
A espécie Sitophilus zeamais é uma das principais pragas do milho armazenado no Brasil. O controle feito, comumente, utilizando-se medidas de higienização e limpeza, bem como inseticidas sintéticos fumigantes protetores. busca por produtos menos tóxicos, biodegradáveis seguros ponto vista ecológico, muito aceita pela sociedade. Assim, os objetivos presente trabalho foram testar a toxicidade contato ingestão fumigante óleos essenciais composto orgânico natural eugenol para adultos S. zeamais....
Tetranychus urticae is considered one of the main plagues in world. Its occurrence Pernambuco was registered for first time 1985 and it has caused considerable damage to farmers, attacking different cultures agricultural interest. The essential oils from parts Vitex agnus-castus harvested Atlantic forest state Pernambuco, Brazil, were obtained by hydrodistillation acaricidal potential evaluated against using two methods under laboratory conditions. Gas chromatography-mass spectrometry...
SPOTTED SPIDE MITE (Tetranychus urticae Koch).The essential oils of the leaves and fruits obtained by hydrodistillation Xylopia sericea, collected in restinga area Pernambuco, were analyzed GC (HP 5890 SERIES II) GC/MS 5890B II/ MSD 5971).A major part volatile components identified monoterpenes sesquiterpenes.Cubenol (57.43%) α-epi-muurolol (26.09%) main compounds found leaves, whereas β-pinene (45.59%) α-pinene (17.18%) components.The acaricidal activity was evaluated for Tetranychus...
Essential oils from leaves and fruits of Protiumheptaphyllum collected in Tamandaré beach Pernambuco/Brazil were analysed by GC/MS tested for toxicity repellent effect against the two spotted spider mite (Tetranychus urticae). The major constituent identified was alpha-terpinene (47.6 %) whereas oil leaf contained mainly sesquiterpenes such as 9-epi-caryophyllene (21.4 %), trans-isolongifolanone (10.7 14-hydroxi-9-epi-caryophyllene (16.7 %). fruit found to be more effective when compared...
Kaurane diterpenes are considered important compounds in the development of new highly effective anticancer chemotherapeutic agents. Genotoxic effects drugs non-tumour cells special significance due to possibility that they induce secondary tumours cancer patients. In this context, we evaluated genotoxic and mutagenic potential natural diterpenoid kaurenoic acid (KA), i.e. (-)-kaur-16-en-19-oic acid, isolated from Xylopia sericeae St. Hill, using several standard vitro vivo protocols (comet,...
Leaf and fruit essential oils of Eugenia langsdorffii were analyzed by GC-FID (gas chromatography with flame ionization detection) GC-MS mass spectrometric detection), featuring a high percentage sesquiterpenes. epi-Longipinanol (13.6 ± 0.1%) γ-eudesmol (12.3 0.2%) the principal components leaf oil, whereas 10-epi-γ-eudesmol (35.7 0.3%) 1,10-di-epi-cubennol (15.6 major constituents oil. A comparative study to assess fumigant residual contact toxicities was conducted. The oil (lethal...