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''Plumbago zeylanica'', commonly known as Ceylon leadwort, doctorbush or wild leadwort, is a species of plumbago with a pantropical distribution. Carl Linnaeus described the paleotropical ''P. zeylanica'' and neotropical ''P. scandens'' as separate species, but they are currently considered synonymous. Ceylon Leadwort is a herbaceous plant with glabrous stems that are climbing, prostrate, or erect. The leaves are petiolate or sessile and have ovate, lance-elliptic, or spatulate to oblanceolate blades that measure 5-9 × 2.5–4 cm in length. Bases are attenuate while apexes are acute, acuminate, or obtuse. Inflorescences are 3–15 cm in length and have glandular, viscid rachises. Bracts are lanceolate and 3-7 × 1–2 mm long. The heterostylous flowers have white corollas 17–33 mm in diameter and tubes 12.5–28 mm in length. Capsules are 7.5–8 mm long and contain are reddish brown to dark brown seeds.〔 Plant extracts have shown potent mosquito larvicidal activity against the larvae of Aedes aegypti while showing no toxicity to fish〔Patil CD, Patil SV, Salunke BK, Salunkhe RB"Bioefficacy of Plumbago zeylanica (Plumbaginaceae) and Cestrum nocturnum (Solanaceae) plant extracts against Aedes aegypti (Diptera: Culicide) and nontarget fish Poecilia reticulata. Parasitol Res." 2011 May;108(5):1253-63〕 Hexane extracts of ''Plumbago zeylanica'' have shown activity against canine distemper virus.〔Bagla VP, McGaw LJ, Eloff JN"The antiviral activity of six South African plants traditionally used against infections in ethnoveterinary medicine." Vet Microbiol. 2011 Sep 17;〕 Hexane extract of plumbago zeylanicaPlumbagin shows Antimicrobial activity() Methanol extract of plumbago zeylanicaPositive inotropic activity() Enzymatic spectrum of herbal Plants Plumbago Linn. () Bioactive spectra of Plumbagin. () methanol extract of plumbago zeylanica shows effect on root- knot nematode'' Meloidogyne ''spp. (). ==References== 5. Dama L.B., Poul B.N.and Jadhav B.V. (1998). Antimicrobial activity of Napthoquinonic compounds. J. Ecotoxicol. Environ. Monit. 8:213-215. 6. Poul B.N, Dama L.B.,and Jadhav B.V. (1999). Positive inotropic activity of ''Plumbagin''. D. E. I. J. Sci. Engineering Res. 11: 26-29. 7. Poul B. N., Dama L.B. and Jadhav B. V. (1999). Enzymatic spectrum of herbal Plants Plumbago Linn. Asian J. Chem. 11(1):273-275. 8. Poul B. N., DamaL.B. and Jadhav B. V. (1999). Bioactive spectra of Plumbagin. Asian J. Chem. 11 (1):144-148. 9. Dama L.B. (2002). Effect of naturally occurring napthoquinones on root- knot nematode ''Meloidogyne'' spp. Indian Phytopathology. 55 (1): 67-69. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Plumbago zeylanica」の詳細全文を読む スポンサード リンク
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