Formation of structures resembling ericoid mycorrhizas by the root endophytic fungus Heteroconium chaetospira within roots of Rhododendron obtusum var. kaempferi
- 23 October 2004
- journal article
- Published by Springer Science and Business Media LLC in Mycorrhiza
- Vol. 15 (1), 61-64
- https://doi.org/10.1007/s00572-004-0333-2
Abstract
A resynthesis study was conducted to clarify the relationship between the root endophyte, Heteroconium chaetospira and the ericaceous plant, Rhododendron obtusum var. kaempferi. The host plant roots were recovered 2 months after inoculation, and the infection process and colonization pattern of the fungus were observed under a microscope. The hyphae of H. chaetospira developed structures resembling ericoid mycorrhizas, such as hyphal coils within the host epidermal cells. These structures were morphologically the same as previously reported ericoid mycorrhizal structures. The frequencies of hyphal coils within the epidermal cells of host roots ranged from 13 to 20%. H. chaetospira did not promote or reduce host plant growth. This is the first reported study that H. chaetospira is able to form structures resembling mycorrhizas within the roots of ericaceous plants.Keywords
This publication has 23 references indexed in Scilit:
- Hymenoscyphus ericae: a new record from western CanadaMycological Research, 1999
- Molecular diversity of ericoid mycorrhizal fungiCanadian Journal of Botany, 1999
- Suppression of clubroot formation in Chinese cabbage by the root endophytic fungus,Heteroconium chaetospiraPlant Pathology, 1998
- Diversity and abundance of ericoid mycorrhizal fungi of Gaultheria shallon on forest clearcutsCanadian Journal of Botany, 1996
- Conidiogenesis in Oidiodendron periconioides and ultrastructure of ericoid mycorrhizas formed with Rhododendron brachycarpumCanadian Journal of Botany, 1993
- Statut endomycorhizien du genre OidiodendronCanadian Journal of Botany, 1991
- Ericoid mycorrhizal fungi in the Myxotrichaceae and GymnoascaceaeNew Phytologist, 1989
- Isolation of Oidiodendron maius from Rhododendron and ultrastructural characterization of synthesized mycorrhizasCanadian Journal of Botany, 1989
- Compendium of Soil FungiTaxon, 1982
- Icones Microfungorum a Matsushima LectorumMycologia, 1976