Aflatoxin effects on spice seed germination and root elongation

Llewellyn, Gerald C.; Gentry, Cynthia L.; Mayo, Ellen S.; Dashek, William V.

doi:10.1007/bf01454591

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…Of the parameters measured, callus chlorophyll and fresh mass accumulation were negatively affected at low AFBi concentrations. Such low doses have been reported to cause little or no effect on germination of various seeds (Jones et al 1980, Llewellyn et al 1982) and excised embryos (McLean et al 1993a), or on root hypocotyl extension in a number of seedlings (Llewellyn et al 1984, McLean et al 1993a.…”

Section: Discussionmentioning

confidence: 96%

Aflatoxin B₁—its effects on anin vitroplant system

McLean

Watt

Berjak

et al. 1995

Food Additives and Contaminants

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The phytotoxic effects of aflatoxin B1 (AFB1) on in vitro cultures of differentiating calli and regenerating plantlets of Nicotiana tabacum were assessed. Callus appeared more sensitive to the effects of AFB1, with fresh mass accumulation and callus chlorophyll levels affected at low (approximately 0.5 micrograms/ml) aflatoxin concentrations. Transmission electron microscopy revealed early deteriorative alterations in chloroplast morphology. Inhibitory effects of the toxin (up to and including 10 micrograms/ml) on callus fresh mass accumulation were reversed following a 3 week toxin-free recovery period. In tobacco plantlets, root and leaf development, and root and leaf mass were significantly inhibited in a dose-dependent fashion with increasing AFB1 concentration above 0.5 micrograms/ml. Inhibitory effects on plantlet root development were more pronounced that on leaf development.

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Section: Discussionmentioning

confidence: 96%

Aflatoxin B₁—its effects on anin vitroplant system

McLean

Watt

Berjak

et al. 1995

Food Additives and Contaminants

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Reduced growth and motility of euglena gracilis in the presence of aflatoxin B₁ and trichothecene T‐2 toxin

Weekley

O’Rear

Kimbrough

et al. 1989

Enviro Toxic and Chemistry

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The ciliated protozoan, Euglena gracilis, was cultured in the presence of aflatoxin B1 (AFB1) (10, 100, and 1000 ng/ml) or T‐2 toxin (10, 100 and 1000 ng/ml) for 6 d. During this period, the control culture size progressively increased, while both AFB1 and T‐2 toxin reduced culture size in a dose‐dependent manner. The sensitivity of the changes in Euglena gracilis growth rate to AFB1 suggests that this organism may have only limited application as a bioassay. Protozoal motility (as assessed by changes in turbidity) was reduced by both toxins, but not in a dose‐dependent manner.

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