Heavy metals have different effects on mycelial morphology of Achlya bisexualis as determined by fractal geometry.
FEMS Microbiol Lett
; 201(2): 259-63, 2001 Jul 24.
Article
em En
| MEDLINE
| ID: mdl-11470371
ABSTRACT
The morphological response, as measured by changes to mycelial area, radial extension and border fractal dimension, of the oomycete Achlya bisexualis to Cu, Co, Hg, Zn and Cd at concentrations of between 0.05 and 3 mM is described. All of the metals decreased mycelial area and radial extension. Border fractal dimension increased in the presence of Cu, Co and Hg with individual hyphae extending out beyond the mycelial margin. In the presence of 3 mM Hg these hyphae displayed spiral growth. Zn and Cd had no effect on border fractal dimension. We suggest that all of the metals slow growth and that Cu, Co and Hg may also disrupt the relationship between tip growth and branching at the edge of the mycelium.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oomicetos
/
Fractais
/
Metais Pesados
/
Micélio
Idioma:
En
Revista:
FEMS Microbiol Lett
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Nova Zelândia