Mycobiology.  2009 Mar;37(1):10-16. 10.4489/MYCO.2009.37.1.010.

Ergosterol and Water Changes in Tricholoma matsutake Soil Colony during the Mushroom Fruiting Season

• Koo CD
• Lee DH
• Park YW
• Lee YN
• Ka KH
• Park H
• Bak WC

• KMID: 2052995
• DOI: http://doi.org/10.4489/MYCO.2009.37.1.010

Abstract

The purpose of this study is to understand spatio-temporal changes of active fungal biomass and water in Tricholoma matsutake soil colonies during the mushroom fruiting season. The active fungal biomass was estimated by analyzing ergosterol content at four different points within four replicated locations in a single circular T. matsutake colony at Ssanggok valley in the Sogri Mt. National Park in Korea during 2003 to 2005. The four points were the ahead of the colony, the front edge of the colony and 20 cm and 40 cm back from the front edge of the colony. Ergosterol content was 0.0 to 0.7 microg per gram dried soil at the ahead, 2.5 to 4.8 microg at the front edge, 0.5 to 1.8 microg at the 20 cm back and 0.3 to 0.8 microg at the 40 cm back. The ergosterol content was very high at the front edge where the T. matsutake hyphae were most active. However, ergosterol content did not significantly change during the fruiting season, September to October. Soil water contents were lower at the front edge and 20 cm back from the front edge of the colony than at the ahead and 40 cm back during the fruiting season. Soil water content ranged from 12 to 19% at the ahead, 10 to 11% at the edge, 9 to 11% at the 20 cm back and 11 to 15% at the 40 cm back. Our results suggest that the active front edge of the T. matsutake soil colony could be managed in terms of water relation and T. matsutake ectomycorrhizal root development.

Keyword

Ergosterol; Fungal biomass; Soil water; Spatio-temporal change; Tricholoma matsutake soil colony

MeSH Terms

Agaricales
Biomass
Ergosterol
Fruit
Hyphae
Korea
Seasons
Soil
Tricholoma
Water
Ergosterol
Soil
Water