Effects of ferulic acid on Glomus fasciculatum and associated effects on phosphorus uptake and growth of asparagus (Asparagus officinalis L.)

The effect of ferulic acid, an allelochemical produced by asparagus, on hyphal elongation and colonization of asparagus by G. fasciculatum was studied. Spore germination in vitro was not affected, but hyphal elongation decreased significantly with increasing ferulic acid concentration. In the greenh...

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Bibliographic Details
Published in:Journal of chemical ecology 1990-03, Vol.16 (3), p.901-909
Main Authors: Wacker, T.L. (Michigan State University, East Lansing, MI), Safir, G.R, Stephens, C.T
Format: Article
Language:English
Subjects:
ABSORCION DE SUBSTANCIAS NUTRITIVAS
ABSORPTION DE SUBSTANCES NUTRITIVES
Agronomy. Soil science and plant productions
ASPARAGUS OFFICINALIS
Biological and medical sciences
COMPOSE AROMATIQUE
COMPUESTOS AROMATICOS
Economic plant physiology
FITOALEXINA
FOSFORO
Fundamental and applied biological sciences. Psychology
GLOMUS
Glomus fasciculatum
Parasitism and symbiosis
PHOSPHORE
PHYTOALEXINE
Plant physiology and development
Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
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Summary:The effect of ferulic acid, an allelochemical produced by asparagus, on hyphal elongation and colonization of asparagus by G. fasciculatum was studied. Spore germination in vitro was not affected, but hyphal elongation decreased significantly with increasing ferulic acid concentration. In the greenhouse, mycorrhizal colonization of roots and growth of mycorrhizal asparagus decreased significantly with increasing ferulic acid concentration. while growth of nonmycorrhizal plants was not affected by ferulic acid. Although plant tissue phosphorus levels were not affected by ferulic acid or mycorrhizal status, ferulic acid inhibition of hyphal elongation in vitro and fungal root colonization in vivo suggests that production of ferulic acid by asparagus reduces the symbiotic effectiveness of the fungus and subsequently reduces plant growth
ISSN:0098-0331
1573-1561
DOI:10.1007/bf01016499