Role of 5-aminolevulinic acid in the salinity stress response of the seeds and seedlings of the medicinal plant Cassia obtusifolia L

Botanical Studies
Chun-Ping ZhangPing He

Abstract

Soil salinity, one of the major abiotic stresses affecting germination, crop growth, and productivity, is a common adverse environmental factor. The possibility of enhancing the salinity stress tolerance of Cassia obtusifolia L. seeds and seedlings by the exogenous application of 5-aminolevulinic acid (ALA) was investigated. To improve the salinity tolerance of seeds, ALA was applied in various concentrations (5, 10, 15, and 20 mg/L). To improve the salinity tolerance of seedlings, ALA was applied in various concentrations (10, 25, 50, and 100 mg/L). After 10 mg/L ALA treatment, physiological indices of seed germination (i.e., germination vigor, germination rate, germination index, and vigor index) significantly improved. At 25 mg/L ALA, there was a significant protection against salinity stress compared with non-ALA-treated seedlings. Chlorophyll content, total soluble sugars, free proline, and soluble protein contents were significantly enhanced. Increased thiobarbituric acid reactive species and membrane permeability levels were also inhibited with the ALA treatment. With the treatments of ALA, the levels of chlorophyll fluorescence parameters, i.e., the photochemical efficiency of photosystem II (Fv/Fm), photochemical effic...Continue Reading

References

Feb 1, 1992·Trends in Biochemical Sciences·J Barber, B Andersson
Apr 1, 1968·Archives of Biochemistry and Biophysics·R L Heath, L Packer
Jun 8, 2001·Phytochemistry·S J Anu, J M Rao
Sep 24, 2004·Biochemical and Biophysical Research Communications·Guillermo O NoriegaMaria L Tomaro

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Citations

Oct 3, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Mohamed A El-EsawiMargaret Ahmad
Aug 22, 2018·International Journal of Molecular Sciences·Mohamed A El-EsawiMargaret Ahmad
Apr 12, 2021·Plant Cell Reports·Mohammad Saidur RhamanMirza Hasanuzzaman

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Methods Mentioned

BETA
environmental stress
MDA

Software Mentioned

PAMWIN Data Acquisition System

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