Basidiospore germination threshold against borate in-vitro may vary between liquid and agar media
E L Schmidt, Ya-Lih Lin
The concentration of disodium octaborate (BAE) which prevented mycelial growth of a common brown rot and 3 white rot fungi was compared to that required to prevent basidiospore germination on malt extract agar. Spore germination sensitivity was lower (50%) for only one of the white rot fungi. However, when spore germination thresholds were tested in malt extract-borate solutions in well slides (no agar), much lower thresholds were noted for 3 of 4 fungi. Neither set of threshold data predicted that noted in limited tests on aspen (Populus tremuloides).
Keywords: BASIDIOSPORES; GERMINATION THRESHOLD; GLOEOPHYLLUM TRABEUM; POPULUS TREMULOIDES; BORATES