Mazarotto, Edson José Pimentel, Ida Chapaval Abreu, Daniela Cleide Azevedo de Santos, Alvaro Figueredo dos

Association of Fusarium and Phomopsis with Peroba Rosa Seeds

Publicação on-line; 33 ref.; 6 tables; Summary (En)



ABSTRACT

Peroba rosa (Aspidosperma polyneuron) is a native forest species endangered due to intense predatory
exploitation. The objective of this study was to evaluate the association and fungi transmission
in peroba rosa seeds from four regions of Paraná. Germination and vigor were evaluated using
the paper roll method. Sanitary analysis consisted of the detection of endophytic and epiphytic
fungi using potato-dextrose-agar medium and Fusarium selective medium. For transmission,
non‑disinfested seeds were sown in vermiculite and kept in greenhouse. Germination ranged from
9.3% to 60%. Fusarium sp. and Phomopsis sp. were found as epiphytic and also as endophytic.
There was transmission of Fusarium sp. and Phomopsis sp. from seeds to seedlings, causing
malformation and necrosis on roots and cotyledons.

Keywords: seed pathology, native forest seeds, endophytic fungi.


PATOLOGIA DE SEMENTE
SEMENTE FLORESTAL
FUNGO
PEROBA ROSA