Effect of water potential on fruit body formation ofLentinula edodes in sawdust-based substrate

被引：0
作者：
Shoji Ohga
机构：
[1] Kyushu University,Research Institute of University Forests
来源：
Journal of Wood Science | 1999年 / 45卷
关键词：
Shiitake; Water potential; Sawdust-based cultivation; Strain variety;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The influence of substrate water potential (ψ) on the growth and fruiting of three genotypes of shiitake (Lentinula edodes) was investigated. A slight reduction ofψ (−0.5MPa) stimulated mycelial and colony growth on liquid, agar, and sawdust-based substrates.L. edodes has been found to grow well at aψ around −0.5 MPa, which corresponds to a moisture content around 55%. A small decrease inψ at the final vegetative growth phase had positive effects on flush quantity. The substrateψ was significantly affected by the interaction between genotypes and spawn run time. Theψ of well-colonized mature substrate was −0.7MPa before and −4.OMPa after the fruiting. Theψ rose again to −0.7MPa during rapid absorbance of water by soaking, and this rise was repeated during the second and third flushes. It is suggested that the water-holding capacity of a substrate is related to culture maturity. Excellent water-providing capacity (higherψ) is expected in the substrate of well-matured cultures with a high density of mycelial colonization.
引用
收藏
页码：337 / 342
页数：5
相关论文
共 29 条
  • [1] Boddy L(1983)The effect of temperature and water potential on growth rate of wood rotting basidiomycetes Trans Br Mycol Soc 80 141-149
  • [2] Eamus D(1984)Determination of water, solute and turgor potentials of mycelium of various basidiomycete fungi causing wood decay J Exp Bot 35 1782-1786
  • [3] Jennings DH(1984)Effect of soil water potential on spore germination by vesicular-arbuscular mycorrhizal fungi Trans Br Mycol Soc 83 193-202
  • [4] Tommerup IC(1987)Water potentials of casing and substrate and osmotic potentials of fruit bodies of Scientia Hortic 32 175-182
  • [5] Kalberer PP(1989)Influence of water potential on growth of shiitake mycelium Mycologia 81 464-468
  • [6] Badham ER(1990)Growth rate of mycelium of shiitake, J Fac Agr Kyushu Univ 34 413-420
  • [7] Ohga S(1997), in relation to water potential of medium Mycol Res 101 705-713
  • [8] Donnelly DP(1997)Development of mycelial systems of Food Rev Int 13 461-469
  • [9] Boddy L(1986) and Appl Environ Microbiol 52 1425-1427
  • [10] Ohga S(1992) on soil: effect of temperature and water potential Trans Mycol Soc Jpn 33 349-357
123