Résumé
The influence of environmental factors on sporulation of Fuligo septica (L.) Wigg. and the abundance of this species on sugar cane bagasse (Saccharum officinarum L.), stored outdoors was studied.In Northeastern Brazil, between January/1997 and January/1998, a total of 29 specimens were collected through monthly collections of aethalia. The relationships between the abundance of aethalia and rainfall, temperature, relative humidity of the air and insolation were studied. Results indicated that on the substrate analyzed, F. septica was an abundant species. Sporulation occurred in all seasons of the year, with a well-defined peak at the end of winter and beginning of spring (August/September),which was strongly influenced by rainfall
Résumé
Apresentam-se os primeiros resultados com o uso de células KB no Instituto de Antibióticos como um importante passo para o estudo de substâncias antimurais no Brasil. A atividade da substância é avaliada mediante a dose-resposta da toxicidade segundo o Protocolo 1600 do "National Cancer Institute-USA" para o uso de células KB, células cultivadas de um carcinoma epidermóide humano. O material com DE**50 <= 30 microng/ml é reavaliado e aquele com DE**50 <= 4 microng/ml é submetido aos testes com tumores in vivo