[Effects of endophytic fungal hyphae and their metabolites on the growth of Dendrobium candidum and Anoectochilus roxburghii].
OBJECTIVE
To study the effects of hyphae and their metabolites of Mycena anoectochila, M. dendrobii and M. orchidicola on promoting the protocorns multiplication of D. candidum and platelet growth of A.roxburghii.


METHODS
Add 20% (V/V) ground hypha or 10 mg/L ethyl acetate extracts of fermentation liquid respectively to the plant culture media.


RESULTS
The ground hypha of 3 Mycena and ethyl acetate extracts of M. orchidicola could promote the protocorn multiplication rate of D. candidum. The ground hypha of M. dendrobii could increase the numbers of bud and improve the platelet growth of A.roxburghii. The ethyl acetate extracts of fermentation liquid of M. anoectochila increased the numbers of bud and M. orchidicola significantly improved the platelet growth of A. roxburghii.


CONCLUSIONS
The effects of 3 Mycena Endophytic fungi on promoting growth of Dendrobium candidum and Anoectochilus roxburghii are related with their metabolites in and out of hypha.
Gao
W W
WW
Department of Mycology, Institute of Medicinal Plant Development, CAMS and PUMC, Beijing 100094, China.
Guo
S X
SX
D031667:Dendrobium / Q000254:growth & development* / Q000382:microbiology; D025301:Hyphae / Q000378:metabolism / Q000502:physiology*; D029595:Orchidaceae / Q000254:growth & development* / Q000382:microbiology; D018520:Plant Shoots / Q000254:growth & development