Mycorrhizal association in gymnosperms of meghalaya india
Mycorrhizal association in gymnosperms of meghalaya india
Sharma, G.D.; Mishra, R.R.
Acta Botanica Indica 10(1): 43-49
1982
ISSN/ISBN: 0379-508X
A survey of certain gymnosperms [Taxus baccata, Cedrus deodara, Cryptomeria japonica, Cunninghamia sinensis, Pinus wallichiana, P. kesiya, Thuja occidentalis, Ginkgo biloba and Cupressus orientalis] of Meghalaya, [India], revealed that all the gymnosperms possess mycorrhizal symbionts. Ectomycorrhizal association occurred in Pinus kesiya, P. wallichiana, Cedrus deodara and Cryptomeria japonica. Fungal sheaths and Hartig nets were present in these species. Some basidiomycetes which are mycorrhizal were closely associated with the roots of P. kesiya and P. wallichiana. Endomychorrhizal association occurred in some cases. Different anatomical and morphological features cell size, cell area, and tannin-containing cells were observed in mycorrhizal and nonmycorrhizal roots. The development of a mycorrhizal association in P. kesiya was studied and sugar contents of mycorrhizal and nonmycorrhizal were determined.