The toxin that causes the diarrheal disease cholera is the cholera enterotoxin called choleragen (CT). It has A and B subunit toxins: toxin A is responsible for enzymatic and intracellular functions, while toxin B is responsible for binding the toxin to the eukaryotic cell receptor.
Echinacea /ËÉkÉ¨ËneÉªÊâ±É/ is a genus, or group of herbaceous flowering plants in the daisy family. The Echinacea genus has nine species, which are commonly called purple coneflowers.They are found only in eastern and central North America, where they are found growing in moist to dry prairies and open wooded areas. They have large, showy heads of composite flowers, blooming from early to late summer.ome species are cultivated in gardens for their showy flowers. Echinacea purpurea is used in folk medicine. Two of the species, E. tennesseensis and E. laevigata, are listed in the United States as endangered species.
Echinacea angustifolia is the variety of echinacea that has been found to be most effective in lab studies. The part used is the fleshy root which is simmered in the usual proportions of two teaspoons of herb per cup of water for about twenty minutes in a non-aluminum pot with a tight fitting lid.chinacea angustifolia & Echinacea purpurea by Ellen Evert Hopman Echinacea is a perennial plant native to the American prairie that is now cultivated in gardens over most of the continental United States.