Endophytic fungi from flowers, capsules and seeds of Eucalyptus globulus.

The main goal of this work was to detect whether Cytospora chrysosperma and Fusicoccum eucalypti are present as endophytes of symptomless hypocotyls, cotyledons, flowers, capsules, peduncles of flowers in order to interpret an earlier finding of their presence in seeds, seedling stems and twigs of E. globulus. Segments from these organs as well as from bark and the xylem from flower peduncles were surface-sterilized and plated on 2% malt-agar. All plates were incubated at 24 degrees C for six weeks or more depending on the growth rate of fungi. C. chrysosperma was asymptomatically present in flowers, capsules, hypocotyls, cotyledons and peduncles. F. eucalypti was isolated from asymptomatic flowers and capsules. It is probable that C. chrysosperma spreads during seed germination colonizing seedling stems through hypocotyl and cotyledon.