Porteresia

Porteresia coarctata is a species of grass in the family Poaceae, native to India, Sri Lanka, Bangladesh, and Myanmar.[3]

Porteresia
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
(unranked):
Commelinids
Order:
Poales
Family:
Poaceae
Genus:
Porteresia

Tateoka
Species:
P. coarctata
Binomial name
Porteresia coarctata
(Roxb.) Tateoka
Synonyms[1][2]
  • Indoryza coarctata (Roxb.) A.N.Henry & B.Roy
  • Oryza coarctata Roxb.
  • Oryza triticoides Griff.
  • Sclerophyllum coarctatum (Roxb.) Griff.

Porteresia coarctata is considered by some botanists to be the only species in the genus Porteresia. Other authors maintain instead that it should belong in the rice genus Oryza,[3] as Oryza coarctata Roxb.[4] It is a form of wild rice that grows in saline estuaries in Bangladesh and India and is harvested and eaten as a delicacy.[5] The plant is salt-tolerant, and is seen as a possibly important source of salt-tolerance genes for transfer to other rice species.[6][7] It is closely related to Oryza australiensis.[8] The leaves of this species secrete salt through special microhair like structures that have three morphotypes, and a method to isolate these structures has been developed.[9] Porteresia coarctata is a perennial species that shows substantial underground rhizomatous growth. The rhizome tissues give out aerial shoots in a favourable season.[10]

References
  1. "entry for Porteresia". World Checklist of Selected Plant Families. Retrieved 15 February 2014.
  2. "The Plant List". Retrieved 1 February 2015.
  3. Kew World Checklist of Selected Plant Families, entry for Oryza
  4. "Tropicos.org". Retrieved 1 February 2015.
  5. Kabir, SM Humayun (2012). "Rice". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
  6. Sengupta, S.; Majumder, A. L. (2010). "Porteresia coarctata (Roxb.) Tateoka, a wild rice: A potential model for studying salt-stress biology in rice". Plant, Cell & Environment. 33 (4): 526–542. doi:10.1111/j.1365-3040.2009.02054.x. PMID 19843254.
  7. Flowers, T. J.; Flowers, S. A.; Hajibagheri, M. A.; Yeo, A. R. (April 1990). "Salt Tolerance in the Halophytic Wild Rice, Porteresia coarctata Tateoka". The New Phytologist. 114 (4): 675–684. doi:10.1111/j.1469-8137.1990.tb00439.x. JSTOR 2556839.
  8. Rangan, L.; Sankararamasubramanian, H. M.; Radha, R.; Swaminathan, M. S. (2002). "Genetic relationship of Porteresia coarctata Tateoka using molecular markers". Plant Biosystems. 136 (3): 339–348. doi:10.1080/11263500212331351239. S2CID 84612331.
  9. Rajakani, Raja; Sellamuthu, Gothandapani; Saravanakumar, V.; Kannappan, S.; Shabala, Lana; Meinke, Holger; Chen, Zhonghua; Zhou, Meixue; Parida, Ajay; Shabala, Sergey & Venkataraman, Gayatri (2019). "Microhair on the adaxial leaf surface of salt secreting halophytic Oryza coarctata Roxb. show distinct morphotypes: Isolation for molecular and functional analysis". Plant Science. 285: 248–257. doi:10.1016/j.plantsci.2019.05.004. PMID 31203890. S2CID 164424933.
  10. Jagtap, T.G., Bhosale, S. and Charulata, S., 2006. Characterization of Porteresia coarctata beds along the Goa coast, India. Aquatic Botany, 84(1), pp.37-44.


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