plant toxin

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A toxic substance of plant origin.
Synonym(s): plant toxin
[phyto- + G. toxikon, poison]

plant toxin

Etymology: ME, plante + Gk, toxikon, poison
any poisonous substance derived from a plant, such as ricin, which is produced by castor-oil seeds.


(tok'sin) [ tox(ic) + -in]

anthrax toxin

The three proteins made by the infectious bacterium Bacillus anthracis responsible for the deadly effects of anthrax. Anthrax toxin includes protective antigen, which helps lethal and edema factors enter and kill cells by disrupting the cell membrane's normal biochemical functions.

bacterial toxin

A poison produced by bacteria that cause cell damage. They include exotoxins, e.g., those secreted by Staphylococcus aureus and Corynebacterium diphtheriae, and endotoxins. Endotoxins continue to cause damage even after the bacteria are killed.
See: bacteria

botulinum toxin type A

A neuromuscular blocking drug used to paralyze muscles, esp. muscles in spasm. It is also used for cosmetic purposes, e.g., by those desirous of maintaining a fixed facial appearance.

botulinus toxin

A neurotoxin that blocks acetylcholine release, produced by Clostridium botulinum, the causative organism for botulism. Seven types of the toxin have been identified.

dermonecrotic toxin

Any of a group of toxins that can cause necrosis of the skin. Coagulase-positive Staphylococcus aureus produces several such toxins.
Synonym: exfoliative toxin See: Kawasaki disease; staphylococcal scaled skin syndrome; toxic shock syndrome

Dick toxin

See: Dick toxin

diphtheria toxin

The toxin produced by Corynebacterium diphtheriae.

diphtheria toxin for Schick test

The toxin used for determining immunity to diphtheria.
See: Schick test

dysentery toxin

The exotoxin of various species of Shigella.

erythrogenic toxin

The former name for the streptococcal pyrogenic exotoxins.

exfoliative toxin

Dermonecrotic toxin.

iota toxin

Either of two disease-causing proteins (Ib and Ia) released by the bacterium Clostridium perfringens. Ia binds to Ib and gains entry into the host cell cytoplasm. Ib subsequently disrupts the actin cytoskeleton and kills the cell.

plant toxin


reproductive toxin

Any chemical or physical agent that destroys or inactivates the ovaries or testes, damages chromosomes, adversely effects reproductive hormones, or has a harmful impact on a developing fetus.

Shiga toxin

See: Shiga toxin.
References in periodicals archive ?
Osmotin, the plant toxin Bressan worked with, is one of several chemicals that plants produce to fight off fungal invasions.
Typically, plant toxin experiments are done at one temperature, says Frank Slansky at the University of Florida in Gainesville.
The study clarifies that not all plant toxins are harmful to insects.
Their topics include the evolutionary background, proteins, hunger and its controls, eating clean and avoiding plant toxins, the world's worst foods, and recommendations for eating in the modern world.
com/FoodSafetyPlan) seeks ways to assess, control, or eliminate potentially harmful food contaminants, including both introduced and naturally occurring pathogenic bacteria, viruses, and parasites, as well as toxins and non-biological-based chemical contaminants, mycotoxins, and plant toxins.
United States Department of Health and Human Services (Washington, DC) has patented recombinant immunotoxin fusion proteins composed of the Fv domains of antibodies fused to bacterial or plant toxins.
Diana Pauly, Center for Biological Safety, Microbial Toxins, Robert Koch-Institute (Germany) - "Simultaneous Detection of Bacterial and Plant Toxins Using a Multiplex Magnetic Bead Assay"
The rattlebox moth (Utethesia ornatrix) became famous when researchers figured out how the species uses and depends on plant toxins.
Little is known about how most plant toxins are absorbed from the alimentary tract.