Brassica rupestris

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Brassica rupestris
Brassica rupestris.jpg
Flowers and leaves
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Brassica
Species:
B. rupestris
Binomial name
Brassica rupestris

Brassica rupestris is a species of flowering plant in the family Brassicaceae, native to southwestern Italy and Sicily. [1] The plant is known to grow on vertical limestone cliffs. [2] In the past it was proposed, based on morphology, that Brassica rupestris contributed to the ancestry of either kale or kohlrabi, but DNA evidence shows that it did not. [3]

Contents

Taxonomy

Brassica rupestris was described and named by Constantine Samuel Rafinesque in 1810. [1] In 1997 Francesco Raimondo and Pietro Mazzola erected a subspecies, Brassica rupestris subsp. hispida, based on very slight differences including leaf hairiness and silique size, which is not supported by molecular studies. [2] In 2020 subspecies monilicarpa [4] and tardarae were named. [5]

Subspecies

The following subspecies are currently accepted: [1]

Chemistry

There were a number of substances of note found in the roots and shoots of B. rupestris. These were tartaric acid ester, reduced glutathione (GSH), ascorbic acid, dehydroascorbic acid, glucobrassicin, and glucoraphanin. [6]

Distribution and habitat

Brassica rupestris subsp. rupestris is found in mountainous areas of Calabria and Sicily, and has been reassessed as Least Concern, while B. rupestris subsp. hispida is found in a number of stations in Sicily and has been reassessed as Vulnerable. [2] Both subspecies typically live on near-vertical limestone cliffs, with B. rupestris subsp. rupestris found from 0 to 1,100 m (0 to 3,600 ft) above sea level, and B. rupestris subsp. hispida found from 800 to 1,300 m (2,600 to 4,300 ft). [2]

Related Research Articles

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References

  1. 1 2 3 "Brassica rupestris Raf". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 10 September 2024.
  2. 1 2 3 4 Perrino, Enrico Vito; Wagensommer, Robert Philipp (2022). "Crop Wild Relatives (CWRS) Threatened and Endemic to Italy: Urgent Actions for Protection and Use". Biology. 11 (2): 193. doi: 10.3390/biology11020193 . PMC   8869772 . PMID   35205060.
  3. Mabry, Makenzie E.; Turner-Hissong, Sarah D.; Gallagher, Evan Y.; McAlvay, Alex C.; An, Hong; Edger, Patrick P.; Moore, Jonathan D.; Pink, David A C.; Teakle, Graham R.; Stevens, Chris J.; Barker, Guy; Labate, Joanne; Fuller, Dorian Q.; Allaby, Robin G.; Beissinger, Timothy; Decker, Jared E.; Gore, Michael A.; Pires, J Chris (2021). "The Evolutionary History of Wild, Domesticated, and Feral Brassica oleracea (Brassicaceae)". Molecular Biology and Evolution. 38 (10): 4419–4434. doi:10.1093/molbev/msab183. PMC   8476135 . PMID   34157722.
  4. "Brassica rupestris subsp. monilicarpa Raimondo & Spadaro". Plants of the World Online . Royal Botanic Gardens, Kew.
  5. "Brassica rupestris subsp. tardarae (Ilardi, Geraci & Troìa) Raimondo". Plants of the World Online . Royal Botanic Gardens, Kew.
  6. Muscolo, Adele; Sidari, Maria; Settineri, Giovanna; Papalia, Teresa; Mallamaci, Carmelo; Attinà, Emilio (2019). "Influence of Soil Properties on Bioactive Compounds and Antioxidant Capacity of Brassica rupestris Raf". Journal of Soil Science and Plant Nutrition. 19 (4): 808–815. doi: 10.1007/s42729-019-00080-5 . S2CID   201210462.