|
KMID : 0379119970250020101
|
|
Korean Journal of Mycology
1997 Volume.25 No. 2 p.101 ~ p.110
|
|
|
Isolations of Orchid Mycorrhizal Fungi from the Korean Native Orchid Plants
|
|
|
|
|
Abstract
|
|
|
|
This study was to identify the orchid mycorrhizal fungi and to test whether the orchid plants artificially inoculated with this fungus showed better growth them uninoculated plants. Symbioses in the root cells of the native plants of Cymbidium goeringu conected were observed and the digestive forms of peletons were also observed in various native roots. Two types of hyphae, thick (7∼10 ㎛) and thin (2∼4 ㎛) in thickness, were conclusively found to be from various native orchid roots. The symbiotic fungus was isolated by several agars and identified as a Rhizoctonia repens or a R. endophytica var. endophytica. Symbioses on the plantlets of C. karnan and Cymbidium hybrid ´Onomoron´ were evaluated as the isolates inoculated on oatmeal agars. The growth of plantlets were measured with the formations of mycorrhizae in the roots. R. repens was shown to be the better isolate than the other in growth stimulation of plantlets on oatmeal agars when grown for two months. The two types of hyphae in the root cells under nature were speculated from the different fungal isolates of Rhizoctonia. Further isolates would be needed for application works for the orchid industries.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|