phytotoxin

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Related to phytotoxins: Phototoxin, phycotoxin

phytotoxin

[¦fīd·ə′täk·sən]
(biochemistry)
A substance toxic to plants.
A toxin produced by plants.
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References in periodicals archive ?
Nowadays the use of fungal phytotoxins to control weeds, which cause problems, is more common (Punzo 2009).
Suppression in root and shoot growth of cotton seedlings by phytotoxins is probably due to decline in cell division and the amount of auxins.
However, the lychee-associated acute brain disorder, which has also been reported in Bangladesh and India (Bihar and West Bengal), could also result from ingestion of phytotoxins present in lychee fruit, specifically a-(methylenecyclopropyl)glycine (2), the lower homologue of the neurotoxic L-amino acid hypoglycine (3,4).
The presence of phytotoxins in sorghum sunflower and brassica might have interacted to strengthen the overall phytotoxicity resulting in maximum weed suppression when applied in combination (Putnam and Tang 1986).
They contain a pharmacopoeia of drugs including alkaloids, glucosides, phytotoxins, selenium and a host of other toxins that induce a variety of symptoms.
Toxcity in MA- 104 cells and rumen protozoa of some phytotoxins.
Previous research suggested that pale swallowworts might be putting phytotoxins into the soil to discourage the growth of competing plants nearby--a process known as "allelopathy.
Tigernut like other plants has been reported to contain some phytotoxins such as alkaloids, trypsin inhibitors, tannins, phytase and saponins that are deleterious when fed in high dosage to monogastrics (9).
To be safe for crops, a longer curing stage is often needed to reduce potential phytotoxins.