S. I. M. Houimli, M. Denden, Bouthaina Dridi Mouhandes
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Effects of 24-epibrassinolide on growth, chlorophyll, electrolyte leakage and proline by pepper plants under NaCl-stress
Brassinosteroids are steroidal phytohormones that have the ability to overcome plant environmental stress. This study was carried out to investigate the role of 24-epibrassinolide in inducing pepper plant salt tolerance as measured by a range of physiological parameters: growth, chlorophyll, electrolyte leakage and proline. Capsicum annuum cv. Beldi seedlings were sprayed with 24-epibrassinolide both in the presence or the absence of NaCl and were sampled, 28 days after treatments. As a result of analysing the cultures under salinity stress, it was determined that the biomass and the chlorophyll decreased significantly, while the electrolyte leakage and the proline concentration increased considerably under salinity stress. However, the application of 24-epibrassinolide significantly ameliorated the adverse effects of salinity on the examined parameters, confirming the suppositions of previous authors who have claimed that exogenously applied 24-epibrassinolide can increase growth and protect the integrity of the cellular membrane in stressed plants.
期刊介绍:
EurAsian Journal of BioSciences (Abbrev. Eurasia J Biosci or EJOBIOS) is an international, refereed electronic journal. It publishes the results of original research in the field of biological sciences restricted tomorphology, physiology, genetics, taxonomy, ecology and biogeography of both prokaryotic and eucaryotic organisms. The journal encourages submission of manuscripts dealing with plant biology, animal biology, plant physiology, microbiology, hydrobiology, ecology and environmental science, ethnobiology, biodiversity and conservation biology. EurAsian Journal of BioSciences publishes original articles in the following areas: -Agriculture, Fisheries & Food -Anatomy & Morphology -Behavioural Sciences -Biology, Biochemistry and Biotechnology -Biophysics -Biology Education -Cellular Biology and Anatomical Sciences -Ecology, Evolution & Environment -Entomology -Forestry -General Biology -Genetics & Heredity -Life Sciences - Other topics -Microbiology and Immunology -Molecular Biology -Mycology -Palaeontology -Parasitology -Pharmacology & Pharmacy -Physiology and Related Sciences -Plant Sciences -Toxicology -Veterinary Sciences -Virology -Zoology