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Acta Botanica Brasilica

Print version ISSN 0102-3306On-line version ISSN 1677-941X

Abstract

FERNANDES, Elio Gomes et al. Fungi associated with Copaifera oblongifolia (Fabaceae) seeds: occurrence and possible effects on seed germination. Acta Bot. Bras. [online]. 2019, vol.33, n.1, pp.179-182.  Epub Sep 21, 2018. ISSN 0102-3306.  http://dx.doi.org/10.1590/0102-33062018abb0100.

Copaifera oblongifolia is a recurrent plant species in degraded areas yet there is little information about its seed biology and interactions with fungi. The aims of this study were to identify the fungal community (endophytic and non-endophytic) associated with C. oblongifolia seeds and to test the effects of these different fungal species on germination. In general, germination of C. oblongifolia seeds was high (about 85 %), initiating four days after sowing and continuing for a total of 20 days. External asepsis with sodium hypochlorite did not influence germinability of C. oblongifolia. Seed infestation with Aspergillus niger, A. flavus, Mucor sp. and Rhizopus stolonifer did not affect the time required for germination, however, infection with A. flavus negatively affected germination percentage. Endophytic fungi were not isolated from C. oblongifolia seeds, suggesting that this species does not transmit endophytic fungi vertically. Therefore, C. oblongifolia can be classified in Class 3 with regard to the transmission and presence of endophytes.

Keywords : endophytic classification; endophytic fungi; saprophytic fungi; seed germination; seed-fungus interactions.

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