Croissance et fructification de Ceratocystis spp. avec attention particulière à C. piceae et C. fimbriata, en fonction du substrat

Abstract

Ceratocystis coerulescens, C. fimbriata, C. ips, and C. minor were tested for production of sexual fruiting bodies, and C. penicillata and C. piceae for asexual fruiting bodies. Ceratocystis fimbriata produced perithecia easily on standard culture media, but there were marked differences between the two strains tested (503, 560). Strain 503 had a good production of fruiting bodies on malt agar (M) and a basal nutrient solution (N). Strain 560 fared better than 503 on Leonian agar (L), but did not fructify on M and N. Supplementing media with various wood extracts produced better results. M + maple sapwood extracts and L + poplar sapwood extracts gave the best results with strain 503, and L + pine sapwood extracts was the best with strain 560.Production of coremia was also influenced by the basal medium and the kind of extracts added as supplements. Fir and maple extracts stimulated the production of fruiting bodies, whereas pine and poplar extracts had no or very little stimulating effects. In every other species tested, the production of fruiting bodies was none or very irregular. [Journal translation]