Assertion: indole alkaloid | /r/HasProperty | vincristine
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text: Important indole alkaloids which have been isolated from plants include the antihypertensive drug, reserpine from Rauvolfia serpentina (Sagi et al., 2016) and the powerful antitumor drugs, vinblastine and vincristine from Catharanthus roseus (El-Sayed and Verpoorte, 2007).