Influence of Endogenous Terpenes on Growth of Three Endophytic Fungi from the Needles of Pinus nigra Arnold : 2nd Slovenian Symposium on Plant Physiology with international Participation, Gozd Martuljek. Slovenia, September, 30 to Oktober 2nd, 1998

1999

S. 225-229

1 Abb., 9 Lit.

Unselbständiges Werk

200059419

The influence of crude terpenoid extract of needles from three subspecies of Pinus nigra Arn.(P. nigra ssp. laricio from Corsica - France, P. nigra ssp. salzmannii from Cevennes - France and P. nigra ssp. austriaca from Bled - Slovenia) on growth of endophytic fungi (isolated in Slovenia) was investigated. Growth experiments were conducted with a latent pathogen (Cenangium ferruginosum), with a facultative pathogen (Sphaeropsis sapinea) and with a saprob (Phialophora hoffmannii) which regularly occurr as endophytes in Austrian pine needles. The growth of S. sapinea and P. hoffmannii in different concentrations of terpenoid extract from all three subspecies of pine is not inhibited. The growth of C. ferruginosum is stimulated in high concentration of terpene extract of P. nigra ssp. austriaca, from which it was isolated, but it is not stimulated in extracts from the other subspecies of pine. The terpenoid extract of P. nigra ssp. austriaca is characterized by higher amount in Alpha-Pinene and Germacrene-d, which are probably responsible for the stimulatory effect.