Associação de Fungos com Sementes de Espécies Florestais Nativas Translated title: Association of Fungi with Seeds of Native Forest Species

Abstract

RESUMO No Brasil, ainda há poucas pesquisas sobre os microrganismos associados às sementes florestais. O objetivo desse trabalho foi detectar fungos associados às sementes de seis espécies florestais nativas: açoita-cavalo (Luehea divaricata), araçá amarelo (Psidium cattleyanum), corticeira (Erythrina falcata), rabo-de-bugio (Lonchocarpus sp.), vassoura-vermelha (Dodonea viscosa) e pau-jacaré (Piptadenia gonoacantha). Foram identificados oito gêneros de fungos potencialmente patogênicos: Cladosporyum sp., Fusarium sp., Pestalotiopsis sp., Phomopsis sp., Coletotrichum sp., Alternaria sp., Phoma sp. e Botrytis sp. e fungos saprófitas: Aspergillus sp., Penicillium sp., Rhizopus sp., Epicoccum sp., Torula sp., Trichoderma sp., Gliocladium sp., Chaetomium sp. e Trichothecium sp. Os resultados evidenciam a diversidade de fungos associados às sementes florestais nativas, incluindo vários potencialmente fitopatogênicos.

Translated abstract

ABSTRACT In Brazil, there is still scarce research on microorganisms associated with forest seeds. The aim of this study was to detect fungi associated with seeds of six native forest species: “açoita-cavalo” (Luehea divaricata), “araçá amarelo” (Psidium cattleyanum), “corticeira” (Erythrina falcata), “rabo-de-bugio” (Lonchocarpus sp.), “vassoura-vermelha” (Dodonea viscosa) and “pau-jacaré” (Piptadenia gonoacantha). Eight genera of fungi were identified as potentially pathogenic: Cladosporyum sp., Fusarium sp., Pestalotiopsis sp., Phomopsis sp., Coletotrichum sp., Alternaria sp., Phoma sp. and Botrytis sp., and saprophytic fungi: Aspergillus sp., Penicillium sp., Rhizopus sp., Epicoccum sp., Torula sp., Trichoderma sp., Gliocladium sp., Chaetomium sp. and Trichothecium sp. Results evidence the diversity of fungi associated with native forest seeds, including several potentially phytopathogenic fungi.