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- Title
Induction of salt tolerance in Azolla microphylla Kaulf through modulation of antioxidant enzymes and ion transport.
- Authors
Abraham, Gerard; Dhar, Dolly
- Abstract
zolla microphylla plants exposed directly to NaCl (13 dsm) did not survive the salinity treatment beyond a period of one day, whereas plants exposed directly to 4 and 9 dsm NaCl were able to grow and produce biomass. However, plants pre-exposed to NaCl (2 dsm) for 7 days on subsequent exposure to 13 dsm NaCl were able to grow and produce biomass although at a slow rate and are hereinafter designated as pre-exposed plants. The pre-exposed and directly exposed plants distinctly differed in their response to salt in terms of lipid peroxidation, proline accumulation, activity of antioxidant enzymes, such as SOD, APX, and CAT, and Na/K ratio. Efficient modulation of antioxidant enzymes coupled with regulation of ion transport play an important role in the induction of salt tolerance. Results show that it is possible to induce salt adaptation in A. microphylla by pre-exposing them to low concentrations of NaCl.
- Subjects
AZOLLA; ANTIOXIDANTS; PLANT translocation; PLANT biomass; PLANT enzymes; GENETIC regulation in plants; PLANT adaptation; EFFECT of salt on plants
- Publication
Protoplasma, 2010, Vol 245, Issue 1-4, p105
- ISSN
0033-183X
- Publication type
Article
- DOI
10.1007/s00709-010-0147-3