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Bioprospection of yeasts as biocontrol agents against phytopathogenic molds
(Brazilian Archives of Biology and Technology, 2011-02-01)
Yeasts isolated from sugar cane and maize rhizosphere, leaves and stalks were screened against the phytopathogenic molds Colletotrichum sublineolum and Colletotrichum graminicola, both causal agents of the anthracnose ...
Identificação e caracterização de genes vip e cry coleóptero-específicos em isolados de Bacillus thuringiensis
(Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 2011-09-01)
O objetivo deste trabalho foi identificar e caracterizar os genes cry3, vip1, vip2 e vip1/vip2 em uma coleção de 1.078 isolados de Bacillus thuringiensis potencialmente tóxicos para larvas de coleópteros. Foram utilizados ...
Controle biológico da podridão radicular e promoção de crescimento em pepino hidropônico com microrganismos de manguezais
(Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 2011-02-01)
O objetivo deste trabalho foi avaliar a capacidade de microrganismos de manguezais para controlar a podridão radicular causada por Pythium aphanidermatum e para promover o crescimento em pepino hidropônico (Cucumis sativus). ...
Antiviral activity of plants occurring in the state of minas gerais (Brazil): Part III
(2011-08-12)
A total of 24 extracts from 14 plant species collected at the state of Minas Gerais, Brazil, and belonging to five botanical families (Annonaceae, Apocynaceae, Ochnaceae, Polygonaceae and Vitaceae) was screened for ...
Peptídeos cíclicos de biomassa vegetal: características, diversidade, biossíntese e atividades biológicas
(Sociedade Brasileira de Química, 2009-01-01)
Natural peptides are outstanding as the most promising macromolecules in the search for new drugs, especially those of cyclic nature. The higher plants revealed a very peculiar composition of their cyclic peptides, which ...
Natural products from Brazilian biodiversity as a source of new models for medicinal chemistry
(Int Union Pure Applied Chemistry, 2012-01-01)
Natural products are the inspiration for many valuable therapeutic agents and attest to biodiversity being a rich source of new molecular structures. Their value as templates for medicinal chemistry remains undisputed, ...
Cytotoxic Guanidine Alkaloids from Pterogyne nitens
(Amer Chemical Soc, 2009-03-01)
As part of a bioprospecting program aimed at the discovery of potential anticancer drugs, two new guanidine-type alkaloids, nitensidines D and E (1, 2), and the known pterogynine (3), pterogynidine (4), and galegine (5), ...