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Jaborosa

Genus of flowering plants From Wikipedia, the free encyclopedia

Jaborosa
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Jaborosa is a genus of flowering plants in the family Solanaceae, the nightshades. There are about 23 species,[1][2][3] all native to South America, where they are distributed from Peru to Patagonia. Most occur in the Andes.[3] Most can be found in Argentina[4] and ten are endemic to the country.[3]

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Jaborosa runcinata flowering in Northeastern Argentina
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Description

Most Jaborosa are rhizomatous perennial herbs except J. bergii and J. sativa, which are annual or biennial.[3]

Ecology

Jaborosa rotacea is pollinated by flies, and J. runcinata is pollinated by moths.[3] Sphingid moths feed on the nectar of J. integrifolia.[4]

Chemistry

Like plants in several other genera of the Solanaceae, many Jaborosa species contain steroid-derived compounds called withanolides.[5] Many of the withanolides isolated from Jaborosa have been dubbed jaborosalactones. Some withanolides are phytotoxic, having effects on other plants such as inhibiting germination and radicle growth.[5] Some have antifeedant effects, deterring insects such as mealworms (Tenebrio molitor),[2] the Mediterranean fruit fly (Ceratitis capitata),[1] and the African cotton leafworm (Spodoptera littoralis)[6] from consuming the plant.

Diversity

Species include:[3][7]

  • Jaborosa ameghinoi
  • Jaborosa araucana
  • Jaborosa bergii
  • Jaborosa cabrerae[8]
  • Jaborosa caulescens
  • Jaborosa chubutensis
  • Jaborosa integrifolia
  • Jaborosa kurtzii
  • Jaborosa lanigera
  • Jaborosa leucotricha
  • Jaborosa magellanica
  • Jaborosa odonelliana
  • Jaborosa oxipetala
  • Jaborosa parviflora
  • Jaborosa pinnata
  • Jaborosa reflexa
  • Jaborosa riojana
  • Jaborosa rotacea
  • Jaborosa runcinata
  • Jaborosa sativa
  • Jaborosa squarrosa
  • Jaborosa volkmannii
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References

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