Anamirta cocculus
Anamirta cocculus is a flowering plant species belonging to the family Menispermaceae. It is native to tropical Asia, including India, Sri Lanka, and the Malay Archipelago. The plant is known for its fruit, which contains the potent neurotoxin picrotoxin, used historically as a piscicide and in traditional medicine.
Description[edit | edit source]
Anamirta cocculus is a large, woody, perennial climbing vine. The leaves are broad and heart-shaped, with a glossy surface and a pointed tip. The plant produces small, white, unisexual flowers, which are borne in panicles. The fruit of the plant is a drupe, which turns from green to black as it matures. Each fruit contains one to two seeds, which are the source of the neurotoxic compound picrotoxin.
Distribution and Habitat[edit | edit source]
Anamirta cocculus thrives in the dense forests and coastal regions of tropical Asia. Its natural range extends from India and Sri Lanka through the Malay Archipelago to Southeast Asia. The plant prefers moist, shaded areas and is often found climbing over trees and shrubs.
Uses[edit | edit source]
Historically, the seeds of Anamirta cocculus were used to stupefy fish, making them easier to catch. This practice, although effective, is now discouraged or banned in many regions due to its environmental impact. In traditional medicine, the seeds have been used to treat various ailments, including parasitic infections and skin diseases. However, due to the toxic nature of picrotoxin, the use of Anamirta cocculus in medicine requires extreme caution.
Toxicity[edit | edit source]
The primary toxic compound in Anamirta cocculus seeds is picrotoxin, a non-alkaloid chemical that acts as a potent antagonist of the GABA_A receptor. This action can lead to convulsions, respiratory failure, and death in severe cases. The use of Anamirta cocculus for any purpose requires careful handling and knowledge of its toxic effects.
Conservation[edit | edit source]
While Anamirta cocculus is not currently listed as endangered, its populations are affected by habitat destruction and overharvesting. Conservation efforts are necessary to ensure the sustainability of this species and its habitat.
See Also[edit | edit source]
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Contributors: Prab R. Tumpati, MD