Notes: Evidence for Ectomycorrhizal Fungus-Mediated Nutrient Transfer Between Pinus and Tradescantia
Abstract:An unique association of Pinus palustris (longleaf pine) trees with Tradescantia hirsutiflora (spiderwort) growing in sandy soil in East Texas was documented. Ectomycorrhizal pine roots grew towards roots of spiderwort in natural soils, intertwined among and grew around the spiderwort roots. Longleaf pine roots penetrated the thick mucilaginous layer of exudates surrounding spiderwort roots, grew among the abundant root hairs, and became closely appressed to the spiderwort root surface. Injection of 14C(U)-sucrose into spiderwort stems resulted in the appearance of radioactivity in pine roots; likewise, its injection into pine roots resulted in the appearance of radioactivity in spiderwort roots. These results establish the fact that nutrient exchange can occur between trees and herbaceous monocotyledonous plants in a natural forest ecosystem. Evidence presented suggests the ectomycorrhizal fungus is involved in the transfer of nutrients between pine and spiderwort. Forest Sci. 30:892-896.
Document Type: Miscellaneous
Affiliations: Professor, Department of Biology, Texas A&M University, College Station, TX 77843
Publication date: December 1, 1984
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.
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