Effect of endomycorrhizae on the bioavailability of bound sup 14 C residues to onion plants from an organic soil treated with ( sup 14 C)fonofos

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Journal of Agricultural and Food Chemistry; (USA)

DOI:https://doi.org/10.1021/jf00093a065· OSTI ID:6524602

Nelson, S D; Khan, S U ^[1]

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1. Agriculture Canada, Ottawa, Ontario (Canada)

Uptake of bound {sup 14}C residues from an organic soil treated with radiolabeled fonofos (O-ethyl S-phenyl ethylphosphonodithioate) by selected Glomus endomycorrhiza and onion roots was studied. The hyphae of endomycorrhizal associations were capable of removing {sup 14}C residues from the soil and transporting them to onion plants. Bioavailability of soil-bound {sup 14}C residues, as measured by {sup 14}C residue content in onion, was increased 32 and 40% over that of nonmycorrhizal plants by hyphae of Glomus intraradices and Glomus vesiculiferium, respectively. The data suggest that under field conditions endomycorrhizal infection may greatly increase the bioavailability of soil-bound pesticide residues to plants.

• OSTI ID: 6524602
• Journal Information: Journal of Agricultural and Food Chemistry; (USA), Vol. 38:3; ISSN 0021-8561
• Country of Publication: United States
• Language: English

Related Subjects

60 APPLIED LIFE SCIENCES
PESTICIDES
BIOLOGICAL AVAILABILITY
RHIZOBIUM
BIOLOGICAL FUNCTIONS
CARBON 14 COMPOUNDS
ONIONS
PLANTS
TRACER TECHNIQUES
UPTAKE
BACTERIA
FOOD
FUNCTIONS
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LILIOPSIDA
MAGNOLIOPHYTA
MICROORGANISMS
VEGETABLES
553003* - Agriculture & Food Technology- Pest & Disease Control- (1987-)