Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-24T17:51:31.904Z Has data issue: false hasContentIssue false

Cultural studies of fungi causing brown rot in heartwood of living lemon trees in Arizona

Published online by Cambridge University Press:  01 March 1998

D. M. BIGELOW
Affiliation:
Department of Plant Pathology, University of Arizona, Tucson, Arizona 85721, U.S.A.
R. L. GILBERTSON
Affiliation:
Department of Plant Pathology, University of Arizona, Tucson, Arizona 85721, U.S.A.
M. E. MATHERON
Affiliation:
Department of Plant Pathology, University of Arizona, Yuma, Arizona 85364, U.S.A.
Get access

Abstract

Coniophora eremophila and Antrodia sinuosa cause brown heartrot in living lemon trees in southern Arizona and California. They can be distinguished in the field by differences in rot characteristics. Both have a high optimum growth temperature of approximately 35°C. Coniophora eremophila has a cultural morphology typical of other Coniophora species and did not fruit in culture. Antrodia sinuosa cultures were morphologically similar to previous reports and fruited readily under laboratory conditions. Mating tests with homokaryotic single spore isolates showed it to have a heterothallic bipolar mating system. The decay capacity of C. eremophila on lemon wood test blocks under laboratory conditions was low compared to that of A. sinuosa, five other brown rot fungi, and three white rot fungi.

Type
Research Article
Copyright
The British Mycological Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)