Results 31 to 40 of about 517 (160)
Acta Amazonica, 2004 Das plantas tóxicas da Amazônia Palicourea longiflora e Strychnos cogens foram isolados 571 fungos endofíticos e 74 bactérias endofíticas. Palicourea longiflora (Rubiaceae) e outras espécies desse gênero estão relacionadas a 90% das mortes de gado na ...
Antonia Queiroz Lima de Souza +5 more
doaj +1 more source
BioMed Research International, Volume 2013, Issue 1, 2013., 2013 Establishment of adventitious root cultures of Peritassa campestris (Celastraceae) was achieved from seed cotyledons cultured in semisolid Woody Plant Medium (WPM) supplemented with 2% sucrose, 0.01% PVP, and 4.0 mg L−1 IBA. Culture period on accumulation of biomass and quinone‐methide triterpene maytenin in adventitious root were investigated.
Tiago Antunes Paz +6 more
wiley +1 more source
Evidence-Based Complementary and Alternative Medicine, Volume 2012, Issue 1, 2012., 2012 Libidibia ferrea has been used in folk medicine throughout Brazil, and this study evaluated the biological activities of crude extract (CE) as well as a partially purified fraction (F80) obtained from its pods. Results from the MTT assay revealed that only F80 inhibited NCI‐H292 cell growth; however, neither CE nor F80 reduced HEp‐2 cell growth or ...
A. C. C. Freitas +10 more
wiley +1 more source
Bioensaio rápido de determinação da sensibilidade da acetolactato sintase (ALS) a herbicidas inibidores [PDF]
Scientia Agricola, 2001 Foi avaliada a atividade da acetolactato sintase (ALS), em plantas resistentes e suscetíveis de B. pilosa e A. quitensis após a aplicação de herbicidas inibidores da ALS. O método baseia-se na utilização do ácido ciclopropanodicarboxílico (CPCA) para inibir a cetoácido reductoisomerase (KARI), enzima que catalisa a reação seguinte do acetolactato na ...
Patrícia Andrea Monqueiro +1 more
openaire +4 more sources
Uptake of Seeds Secondary Metabolites by Virola surinamensis Seedlings
International Journal of Analytical Chemistry, Volume 2012, Issue 1, 2012., 2012 The major secondary metabolites and fatty acids occurring in the seeds of Virola surinamensis were monitored by GC‐MS during germination and seedling development. The role as carbon source for seedling development was indicated considering that both classes of compounds were similarly consumed in the seeds and that no selective consumption of compounds
Massuo Jorge Kato +5 more
wiley +1 more source
Revista Contexto & SaúdeEugenia klotzschiana O. Berg is an endangered species endemic to the Cerrado whose therapeutic potential has yet to be fully elucidated. Few studies have shown this plant has antimicrobial, antiparasitic, and antioxidant activity.
Charles Lima Ribeiro +7 more
doaj +1 more source
Revista Principia, 1999 Testes de toxicidade e bioensaios com organismos aquáticos são usados por mais de vinte anos, por todo o mundo, para avaliar o efeito letal que substância tóxica (como agrotóxico) pode causar em corpo de água.
Carlos Alberto de Menezes Junior +3 more
doaj +1 more source
Photodiagnosis and Photodynamic TherapyThis study evaluated the efficacy of chlorhexidine (CHX) in combination with curcumin-mediated photodynamic therapy (CUR-PDT) against clinical Candida spp. isolates.
João Salviano Simões Chagas da Silva +6 more
doaj +1 more source
Biodisponibilidade de contaminantes em solos brasileiros tratados com lodo de esgoto: uma abordagem ecotoxicológica utilizando bioensaios com organismos aquáticos e edáfi cos [PDF]
Geochimica Brasiliensis, 2017 O lodo de esgoto (LE) é um resíduo gerado em estações de tratamento de efl uentes domésticos e tem sido, comumente, empregado como insumo na agri-cultura e recuperação de áreas degradadas.
Ricardo Cesar +8 more
doaj
Acta Limnologica Brasiliensia, 2010 AIM: The Caí River is one of the five that form the Guaiba Lake Hydrographic Basin. It is used for public water supply in the capital of Rio Grande do Sul; METHODS: Sediment samples for toxicity test (21 days) with Daphnia magna were taken from four ...
Nara Regina Terra +4 more
doaj +1 more source