Lecture 10 Flashcards
Name the
Plant
Avocado
What does ergot cause
Poisonous due to myotoxins
Symptoms include
- Nervous
- Gangrenous
Name the plant and how it affects ruminants
Sweet potato
Severe dyspnoea and oedema, pneumotoxic furanoterpenes, from eating moldy yubers, removal of moldy tubers results in recovers (contains toxic levels of nitrates)
Name the plant and what it causes
Macadamia nut
Fresh rosted nuts produce joint pain and muscular weakness in dogs (unidentified toxin)
Name the plant and its effect
Caustic vine
Cattle and sheep affected usually in dry season and sometimes after a fire when new shoot emerge. The soft stems are filled with milky white latex that is poisonous and caustic
Name plant and what is causes
Madagascar periwinkle
The substances vinblastine and vincristine extracted from the plant are used in the treatment of leukemia
Causes incoordination, convulsions, diarrhoea, stomach craps
Name the plant and what it causes
Cashew nut
Seed is surrounded by a double shell containing a dermatogenic phenolic resin, urushiol, a potent skin and throat irritant toxin to people and pigs
Name the plant and what is causes
Brazillian pepper tree
Horses develop dermatitis from rubbing the tree, cattle develop enteritis from eating goliage, unripe fruit fatal to horses, birds intoxicated
Name the plant and its effects
Pepper tree, peppercorn
Toxic to poultry, pigs, calves, humans. Urushiols and unknown toxins. Causes irritation of mucous membranes, gastro enteritis
Name the plant and its effect
Stinging tree
Horses and humzn affected. Moroidin is theough to be partly responsible for intense local pain. Horses can be driven to frenzy by contact
Name the plant and toxin
Giant milk weed
Cardiac glycoside
Name the plant and effect
Golden Dew Drop
Causes gastro irritation, tetanic sieures
Name the plant and the toxin
Caladium, Angel’s Wing
Calcium oxalate crystal
Name the plant and what is causes
Wax flower
Unknown neurotoxin causes muslce tremors, ataxia
Name the plant and the effect
Coral trees
Suspected of having narcotic effect on horses, flowers toxic to bees. Bat wing coral suspected of poisoning cattle in N Australia
How does rye grass cause staggers
Seasonal problem of sheep, cattle and horse that feed on overgrazed ryegress pastures. A fungus (neotyphodium lolli) that grows between the plant cells of ryegrass produces a poison (Tremorgens (Lolitrems) that afftect the nervous system of stock
How does rye crass cause facial eczema
The fungus Pithomyces chartarum grows in dead pasture litter the toxin Sporidesmin is a mycotoxin, concentrated in the spores of fungus
Facial eczema -2ndry photosensitiation affects sheep and cattle grazing rye grass with heavy litter and when environmental conditions suite the growth of the fungus (warm wet weather)
What are Jacaranders toxic too
Fish - volatile oils
What poisons are frangipani
Latex (causes dermatitis and bark is purgative)
Name the plant and poison
Brazillian nightshade
Steroidal glycoalkaloids
