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Production of Metal‐Chelating Compounds by Species of H eterobasidion annosum sensu lato
Author(s) -
Mucha Joanna,
Guzicka Marzenna,
Łakomy Piotr,
Zadworny Marcin
Publication year - 2013
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12135
Subject(s) - siderophore , hypha , biology , chelation , heterobasidion annosum , microbiology and biotechnology , oxalate , sensu , metal , botany , food science , biochemistry , chemistry , gene , organic chemistry , picea abies , genus
The role of iron and compounds that chelate iron in the development of fungal diseases and wood degradation is not well understood, and their involvement in the simultaneous pathogenic and wood‐decomposing capabilities of H eterobasidion annosum s.l . is unknown. In the current study, the production of low‐molecular‐mass compounds that can chelate iron, such as catecholate, hydroxamate and oxalate, by H . annosum s.l. was correlated positively with supplementation of the medium with iron. In contrast, iron supplementation did not increase the F e 3+ ‐reducing ability of H . annosum s.s. and H . abietinum hyphae. Indeed, H . annosum s.s. is known to cause higher mortality of the plant host, but produced a lower quantity of siderophores than H . abietinum or H . parviporum . Under iron supplementation, siderophore production was correlated with phenoloxidase activity in the low‐molecular‐mass fraction, which might have consequences for cell wall decomposition.