Ophiorrhiza

Ophiorrhiza
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Gentianales
Family:	Rubiaceae
Genus:	Ophiorrhiza; L.
Species
	About 150, see text

Ophiorrhiza is a genus of flowering plants in the coffee family (Rubiaceae). Species of the genus contain camptothecin, an alkaloid used to make chemotherapeutic agents.^[2]^[3] So many of Ophiorrhiza species are endemic to certain areas of western Ghats. Species include:

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References[]

^ ^a ^b Beegum, A. S., et al. (2007). Organogenesis from leaf and internode explants of Ophiorrhiza prostrata, an anticancer drug (camptothecin) producing plant. Electronic Journal of Biotechnology 10:1.
^ ^a ^b Joseph, G. and J. P. Joseph. Rediscovery of Ophiorrhiza caudata (Rubiaceae) from the Western Ghats of Kerala. Rheedia 19 45.
^ Viraporn, V., et al. (2010). Correlation of camptothecin-producing ability and phylogenetic relationship in the genus Ophiorrhiza. Planta Med. in pub.
^ ^a ^b ^c Sirikantaramas, S., et al. (2008). Mutations in topoisomerase I as a self-resistance mechanism coevolved with the production of the anticancer alkaloid camptothecin in plants. PNAS 105:18 6782.
^ ^a ^b ^c Arbain, D, et al. (1998). Unusual indole alkaloids from Ophiorrhiza blumeana Korth. J. Chem. Soc., Perkin Trans 1.
^ Asano, T., et al. (2004). Camptothecin production by in vitro cultures of Ophiorrhiza liukiuensis and O. kuroiwai. Plant Biotechnology 21:4 275.
^ Chu, F., et al. (2006). Taxonomic Status of Ophiorrhiza michelloides (Masam.) X. R. Lo (Rubiaceae) in Taiwan. Taiwania 51:2 143.
^ Nakamura, K., et al. (2006). Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae) endemic to Taiwan. Journal of Plant Research 119:657–661.
^ Nakamura, K., et al. (2006). Homostyly and autogamy in Ophiorrhiza pumila (Rubiaceae) in the Ryukyu Archipelago. Journal of Japanese Botany 81:113–120.
^ meenachilarensis, Ophiorrhiza (30 November 2020). "meenachilarensis". universityofflorence.medium.com. universityofflorence.medium.com. Retrieved 8 ഡിസംബർ 2020. Check date values in: |accessdate= (help)
^ ., . (18 November 2020). "Journal of Plant Taxonomy and Geography". Webbia. oaj.fupress.net. 75 (2): 231–236. doi:10.36253/jopt-8508. S2CID 230636509. Retrieved 8 ഡിസംബർ 2020. Check date values in: |accessdate= (help)CS1 maint: numeric names: authors list (link)

External links[]

Vascular Plants of Gaoligong Shan, Yunnan, China: Ophiorrhiza
Darwin, S. P. (1976). The Pacific species of Ophiorrhiza (Rubiaceae). Lyonia 1:2.

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[beegum-1] Beegum, A. S., et al. (2007). Organogenesis from leaf and internode explants of Ophiorrhiza prostrata, an anticancer drug (camptothecin) producing plant. Electronic Journal of Biotechnology 10:1.

[joseph-2] Joseph, G. and J. P. Joseph. Rediscovery of Ophiorrhiza caudata (Rubiaceae) from the Western Ghats of Kerala. Rheedia 19 45.

[vira-3] Viraporn, V., et al. (2010). Correlation of camptothecin-producing ability and phylogenetic relationship in the genus Ophiorrhiza. Planta Med. in pub.

[siri-4] Sirikantaramas, S., et al. (2008). Mutations in topoisomerase I as a self-resistance mechanism coevolved with the production of the anticancer alkaloid camptothecin in plants. PNAS 105:18 6782.

[arb-5] Arbain, D, et al. (1998). Unusual indole alkaloids from Ophiorrhiza blumeana Korth. J. Chem. Soc., Perkin Trans 1.

[6] Asano, T., et al. (2004). Camptothecin production by in vitro cultures of Ophiorrhiza liukiuensis and O. kuroiwai. Plant Biotechnology 21:4 275.

[7] Chu, F., et al. (2006). Taxonomic Status of Ophiorrhiza michelloides (Masam.) X. R. Lo (Rubiaceae) in Taiwan. Taiwania 51:2 143.

[8] Nakamura, K., et al. (2006). Phylogenetic systematics of the monotypic genus Hayataella (Rubiaceae) endemic to Taiwan. Journal of Plant Research 119:657–661.

[9] Nakamura, K., et al. (2006). Homostyly and autogamy in Ophiorrhiza pumila (Rubiaceae) in the Ryukyu Archipelago. Journal of Japanese Botany 81:113–120.

[10] rensis, Ophiorrhiza (30 November 2020). "meenachilarensis". universityofflorence.medium.com. universityofflorence.medium.com. Retrieved 8 ഡിസംബർ 2020. Check date values in: |accessdate= (help)

[11] ., . (18 November 2020). "Journal of Plant Taxonomy and Geography". Webbia. oaj.fupress.net. 75 (2): 231–236. doi:10.36253/jopt-8508. S2CID 230636509. Retrieved 8 ഡിസംബർ 2020. Check date values in: |accessdate= (help)CS1 maint: numeric names: authors list (link)

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