Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 88. (Budapest 1996)

Szedlay, Gy., Jakucs, E. , Bóka, K. ; Boldizsár, I.: Macro- and micromorphological characteristics of Ganoderma lucidum Karsten strains isolated in Hungary

Table 2. The growth characteristics of isolates depending on the temperature. Comparison of our results with some data of literature. (1 - own results; 2 - AASKAVEG & GILBERTSON (1986); 3- WANG &HUA (1991) 2 3 Growth rate (mm/day) MEA 10.6 7.8 9.1 PDA 8.6 no data 7.8 Temperature optimum (°C) 22-26 30-34 26-30 Growth interval (°C) 10-30 <10-42 14-38 strains grew consequently only in an interval of 20 °C. The average optimal growth temperature of our strains was 26 °C on MEA and 22 °C on PDA. Speed of mycelial growth was 10.6 mm/day and 8.6 mm/day, respectively. This differs significantly from the results of ADASKAVEG & GILBERTSON (1986) and WANG & HUA (1991). Macroscopic morphology of the mycelium cultures In order to characterize the strains a test list of 19 characteristics had been established. The following features were examined: 1. Homogeneity a - homogeneous b - the central part is different c - the central part forms concentric circles 2. The macroscopic structure of the dominating part of the mycelium surface a - velvety b - velvety-cottony c - cottony d - filamentous e - velvety-filamentous 3. The macroscopic structure of the central part, if any exists a - velvety b - thick, concentric mycelial rings c - excreted drops in concentric rings d - chamois-like e - brown f - submers 4. The colour of the dominating part of the mycelium a - white b - brown 5. Presence of submers hyphae 6. Presence of small hyphal tufts These characteristics were suitable for describing strains of different age and growing on different media. There were only few exceptions, mainly among the six-week-old