Hostname: page-component-7479d7b7d-k7p5g Total loading time: 0 Render date: 2024-07-12T03:21:59.199Z Has data issue: false hasContentIssue false

Endophytic mycobiota of healthy twigs and the assemblage of species associated with twig lesions of Eucalyptus globulus and E. grandis in Uruguay

Published online by Cambridge University Press:  01 April 1999

LINA BETTUCCI
Affiliation:
Laboratorio de Micología, Facultad de Ciencias-Facultad de Ingeniería, Julio Herrera y Reissig 565, Montevideo, Uruguay
RAQUEL ALONSO
Affiliation:
Laboratorio de Micología, Facultad de Ciencias-Facultad de Ingeniería, Julio Herrera y Reissig 565, Montevideo, Uruguay
SUSANA TISCORNIA
Affiliation:
Laboratorio de Micología, Facultad de Ciencias-Facultad de Ingeniería, Julio Herrera y Reissig 565, Montevideo, Uruguay
Get access

Abstract

The endophytic mycobiota of healthy twigs and the assemblage of species associated with twig lesions of Eucalyptus globulus and E. grandis planted at the same site in the central west region of Uruguay was examined. Twig segments from E. grandis and E. globulus were plated on 2% malt agar. The diversity of endophytes isolated was low, as was the number of host-specific species. E. globulus endophytes of healthy xylem were different from the colonizers of cracked lesions and healthy bark. Conversely, in E. grandis characterized by black spots, the main difference in species composition was between xylem and bark. Cytospora chrysosperma was isolated from healthy bark and symptomatic twigs of E. globulus, suggesting that symptomatic tissues, such as cracks produced under drought were favourable to saprotrophic expansion.

Type
Research Article
Copyright
The British Mycological Society 1999

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.)