Journal of Pure and Applied MicrobiologyVol. 3 No. 2

The Effects of Some Environmental Parameters on Mycelial Growth of Six Morchella species

Fatih Kalyoncu¹*, Mustafa Oskay¹ and Meryem Kalyoncu²

¹Department of Biology, Faculty of Science and Arts, Celal Bayar University, Manisa, Turkey. ²Muradiye Cumhuriyet Primary School, Muradiye, Manisa, Turkey.

Received on 03 June 2009 and accepted on 20 July 2009

 

ABSTRACT

A comparative evaluation was conducted to assess the effects of some environmental parameters such as pH, type of carbon source, salinity and temperature on the mycelial growth of six species of an ectomycorrhizal fungus, Morchella spp. (M. costata, M. elata, M. esculenta, M. hortensis, M.intermedia and M. rotunda) collected from different parts of Turkey. All carbon sources were found to be beneficial for mycelial growth. However, glucose, sucrose, maltose and fructose were better sources of carbon for some morels. Maximum mycelial growth in Petri dishes was achieved at 20 and 250C after three weeks incubation for all Morchella species. Growth was reduced significantly below 150C and above 300C. Different pH and salinity (NaCI) levels markedly affected the mycelial growth of the fungi.

Keywords : Ectomycorrhiza, Environmental parameters, Morchella spp., Mycelial growth.