Centipeda

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Centipeda
Centipeda minima 3.JPG
Centipeda minima
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Centipeda
Lour.
Synonyms[1]
  • Cotula sect. Centipeda (Lour.) Baill.
  • Centipeda sect. Sphaeromorphaea (DC.) DC. ex C.B.Clarke
  • Myriogyne Less.
  • Centipeda sect. Myriogyne (Less.) C.B.Clarke

Centipeda is a genus of flowering plants in the daisy family, Asteraceae.[2][3][4][5][6] The genus is primarily native to Australia and New Zealand, with a few species extending the range northward into Asia and across the Pacific to southern South America.[7]

Species[1][edit]

Research and biological activities[edit]

Volatile oils from Centipeda minima have been shown to modulate anti-inflammatory action by inhibiting inflammatory cytokines in a rat model.[8] In a related study, C. minima eased allergic rhinitis by slowing the infiltration of eosinophils and the proliferation of mast cells.[9]

A comprehensive investigation of the GC-MS chemical profile of C. cunninghamii and its biological activity showed that this species' extract contains novel compounds that possess anti-inflammatory and antioxidant properties.[10]

Phylogeny[edit]

On 2012, Nylinder et al. published an estimation of the species tree phylogeny of the Australian/New Zealand genus Centipeda (Asteraceae) based on nucleotide sequence data.[11] Centipeda racemosa (Snuffweed) is the sister to remaining species, which is also the only consistently perennial representative in the genus. Centipeda pleiocephala (Tall Sneezeweed) and C. nidiformis (Cotton Sneezeweed) constitute a species pair, as does C. borealis and C. minima (Spreading Sneezeweed), all sharing the symplesiomorphic characters of spherical capitulum and convex receptacle with C. racemosa. Another species group comprising C. thespidioides (Desert Sneezeweed), Centipeda cunninghamii (Old man weed, or Common sneeze-weed), C. crateriformis is well-sup- ported but then include the morphologically aberrant C. aotearoana, all sharing the character of having capitula that mature more slowly relative the subtending shoot. Centipeda elatinoides takes on a weakly supported intermediate position between the two mentioned groups, and is difficult to relate to any of the former groups based on morphological characters.[11]

References[edit]

  1. ^ a b Flann, C (ed) 2009+ Global Compositae Checklist
  2. ^ Loureiro, João de. 1790. Flora cochinchinensis : sistens plantas in regno Cochinchina nascentes. Quibus accedunt aliae observatae in Sinensi imperio, Africa Orientali, Indiaeque locis variis. Omnes dispositae secundum systema sexuale Linnaeanum 2: 492-493 in Latin
  3. ^ Tropicos, Centipeda Lour.
  4. ^ Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Astereae". Euro+Med PlantBase. Freie Universität Berlin. Retrieved 2009-07-18. 
  5. ^ UniProt. "Tribe Astereae". Retrieved 2009-07-18. 
  6. ^ National Herbarium of New South Wales. "Genus Centipeda". New South Wales FloraOnline. Royal Botanic Gardens, Sydney. Retrieved 2013-06-17. 
  7. ^ Flora of China Vol. 20-21 Page 892 石胡荽属 shi hu sui shu Centipeda Loureiro, Fl. Cochinch. 2: 492. 1790.
  8. ^ Qin, R. A., et al. (2005). Effects of the volatile oil of Centipeda minima on acute pleural effusion in rats induced by an intrapleural injection of car. Zhongguo Zhong Yao Za Zhi 30(15) 1192-4. PMID 16201699.
  9. ^ Liu, Z. G., et al. (2005). Histopathological study on allergic rhinitis with Centipeda minima. Zhongguo Zhong Yao Za Zhi 30(4) 292-4. PMID 15724411.
  10. ^ Beattie, Karren D. (2009). "Phytochemical studies and bioactivity of Centipeda and Eremophila species". PhD thesis. Southern Cross University. 
  11. ^ a b Nylinder, Stephan (Apr 2, 2013). "Species tree phylogeny and character evolution in the genus Centipeda (Asteraceae): Evidence from DNA sequences from coding and non-coding loci from the plastid and nuclear genomes". Molecular Phylogenetics and Evolution. doi:10.1016/j.ympev.2013.03.020. Retrieved April 30, 2015.