Simultaneous Stimulation of Endophytic Cryptodiaporthe Hystrix and Inhibition of Acer Macrophyllum Callus in Dual Culture

Effects of the interaction between the endophyte Cryptodiaporthe hystrix (anamorphic state: Diplodina acerina) and the callus of its host, Acer macrophyllum, were recorded in dual cultures as mutual or unilateral growth stimulation or suppression. Both the callus and the C. hystrix isolates were der...

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Bibliographic Details
Published in:Mycologia 1990-09, Vol.82 (5), p.569-575
Main Authors: Sieber, Thomas N., Sieber-Canavesi, Francesca, Dorworth, Charles E.
Format: Article
Language:English
Subjects:
Acer macrophyllum
Agronomy. Soil science and plant productions
Biological and medical sciences
Callus
Coniferous forests
Cryptodiaporthe hystrix
endophytic fungi
Endosymbionts
Forest growth
Forestry
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Fungi
Inoculation
Pathogens
Pathology, epidemiology, host-fungus relationships. Damages, economic importance
Phytopathology. Animal pests. Plant and forest protection
Plant tissues
Plants
tissue culture
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Summary:Effects of the interaction between the endophyte Cryptodiaporthe hystrix (anamorphic state: Diplodina acerina) and the callus of its host, Acer macrophyllum, were recorded in dual cultures as mutual or unilateral growth stimulation or suppression. Both the callus and the C. hystrix isolates were derived from surface-sterilized 2- to 3-yr-old twigs of healthy 5- to 8-yr-old bigleaf maples growing at different locations in the Vancouver Forest Region of British Columbia. All C. hystrix isolates inhibited callus growth. Conversely, growth of fungus was always strongly stimulated by the presence of callus, irrespective of the provenance of the fungal isolate. Water-soluble metabolites produced by the callus may be responsible for this stimulation.
ISSN:0027-5514
1557-2536
DOI:10.1080/00275514.1990.12025931