Premium
The occurrence of Phialophora ‐like fungi related to Gaeumannomyces graminis under various grass species and some characteristics of these fungi 1
Author(s) -
MARTYNIUK S.
Publication year - 1987
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.1987.tb00081.x
Subject(s) - biology , agrostis , graminicola , dactylis glomerata , botany , population , festuca , festuca rubra , festuca arundinacea , agronomy , poaceae , demography , sociology , pathogen , immunology
Phialophora graminicola and Phialophora sp. (lobed hyphopodia) are weakly or not pathogenic to the cereal and grass roots which they colonize and are also known to restrict the infection of these plants by Gaeumannomyces graminis . The occurrence of these fungi under 15 field‐grown grass species has been studied using wheat as the test plant. P. graminicola occurred under all grass species tested but at different population levels. The lowest populations were found under Bromus erectus and B. inermis , and relatively low populations under Agrostis alba, Festuca ovina and Phalaris arundinacea. Festuca pratensis, F. rubra, F. arundinacea, Dactylis glomerata and Arrhenatherum elatius harboured the highest populations of P. graminicola. Phialophora sp. (lobed hyphopodia) was found at low population levels under 7 of the 15 grasses examined. The strains of P. graminicola isolated in these studies differed markedly in growth rate on wheat roots and in restriction of G. graminis on wheat grown in perlite (preliminary results).