Skip to main content
Log in

Mechanism of salt tolerance in wild rice (Oryza coarctata Roxb)

  • Published:
Plant and Soil Aims and scope Submit manuscript


Oryza coarctata, a highly salt-resistant wild rice species, is commonly found on the banks of coastal rivers in India. This species can also withstand saline water (20 to 40 dSm−1 E.C) submergence for quite a long period. It was revealed thatO. coarctata has some special unicellular salt hairs (trichomes) on the adaxial surface of the leaves, by which they efficiently maintain a low concentration of toxic salts in the plant tissue. Sodium and chloride were the dominant ions in the excreted material but they also excrete potassium, magnesium and calcium. With the increase in soil salinity sodium, magnesium and chloride excretion increased.O. coarctata maintained the optimum mineral concentration in its tissues. Maximum accumulation of potassium was observed in the leaves. With the increase in salt stress total biomass production and osmotic potential increased over control but there was no change in the moisture percentage of leaves.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others


  1. Arisz W H, Camphuis I J, Hckiens H and Van Tooren A J 1955 The secretion of the salt gland inLimonium latifolium. Acta Bot. Neerl. 4, 322–326.

    Google Scholar 

  2. Bal A R 1975 A note on the comparative study of free aminoacids content between wild salt tolerant rice and cultivated rice varieties. Curr. Sci. 44, 194–195.

    CAS  Google Scholar 

  3. Chalam G V 1943 Comparative studies on the anatomy of two wild species in the genus Oryza. Ph. D. thesis, Part-II, Patna University.

  4. Hedayetullah S and Chakravorti A K 1941, Mechanical system in five species of the genusOryza. J. Dept. Sci., Bengal, N. S. 1, 21–48.

    Google Scholar 

  5. Johansen D A 1940. Dehydration. Plant Microtechnique 130–132.

  6. Liphschitz N and Waisel Y 1974 Existence of salt glands in various genera of the Graminese. New Phytol. 73, 507–513.

    Google Scholar 

  7. LuttgeU 1971 Structure and function of plant glands. Annu. Rev. Plant Physiol. 22, 23–44.

    Article  Google Scholar 

  8. Richharia R H and Roy J K 1965 Anatomical studies in the genus Oryza-I. Anatomy of Oryza coarctata in relation to its systematic position in the genus. Oryza 2, 1–9.

    Google Scholar 

  9. Ruhland W 1975 Untersuchungen Uber die Hautdrusen der Plumbaginaceen. Fb. nist. Bot. 55, 400.

    Google Scholar 

  10. Tateoka T 1963 Notes on some grasses. XIII. Relationship between Oryza and Ehrharteae, with special reference to leaf anatomy and histology. Bot. Gaz. 124, 264–270.

    Article  Google Scholar 

  11. Walter H and Steiner M 1936 Die Okologie der Ost-Afri-Kanischen Mangroven. Z. Bot. 30, 85–90.

    Google Scholar 

Download references

Author information

Authors and Affiliations


Rights and permissions

Reprints and permissions

About this article

Cite this article

Bal, A.R., Dutt, S.K. Mechanism of salt tolerance in wild rice (Oryza coarctata Roxb). Plant Soil 92, 399–404 (1986).

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI:

Key words