[Effect of companion fungus on hyphal growth and polysaccharide content of Polyporus umbellatus].
OBJECTIVE
To study the effects of companion fungus on hyphal growth and polysaccharide content of Polyporus umbellata.


METHODS
The mycelia and culture filtrate of companion fungus were added to the liquid culture system, and the biomass yield and polysaccharide of P. umbellatus were measured.


RESULTS
Mycelia and appropriate unsterilized culture filtrate of companion fungus could enhance the biomass yield of P. umbellatus significantly, while sterilized culture filtrate of companion fungus could decrease the biomass yield of P. umbellatus significantly. Either mycelia or culture filtrate of companion fungus could increase the intracellular polysaccharide content of P. umbellatus significantly. At the same time, they also could decrease extracellular polysaccharide content of P. umbellatus evidently.


CONCLUSIONS
The mycelia and culture filtrate of companion fungus could be used in further fermentation of P. umbellatus.
Xing
Xiao-Ke
XK
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100094, China.
Guo
Shun-Xing
SX
D018533:Biomass; D005110:Extracellular Space / Q000378:metabolism; D025301:Hyphae / Q000254:growth & development*; D042541:Intracellular Space / Q000378:metabolism; D055492:Polyporus / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D011134:Polysaccharides / Q000378:metabolism*; D013559:Symbiosis
D011134:Polysaccharides