"Protective role of nitric oxide against stress induced by salinity and heavy metals in plant”
Nihal Yousef Esmail Ebrahim;
Abstract
The present work was carried out to investigate the
protective role played by exogenous nitric oxide (NO) in
Lupinus termis L. plants subjected to salt and heavy metal
stress. Foliar spray of sodium nitroprusside was used as a NO
donor to treat lupine plants grown under different levels of
salinity (0.0, 75 and 150 mM NaCl) and Ni toxicity (0.0,100
and 150 mM NiSO4). Growth characteristics as well as
physiological changes including photosynthetic pigments,
endogenous nitric oxide content, proline, soluble sugars and
polysaccharides content, total phenols and flavonoids, some
oxidative markers (including lipid peroxidation as
malondialdehyde (MDA), H2O2, and electrolyte leakage),
endogenous phytohormones (IAA, GA3, ABA and JA),
antioxidant enzyme activities (superoxide dismutase,
peroxidase, ascorbate peroxidase, catalase and glutathione
transferase), some mineral ions such as Na+,Ca2+,K+ and Mg2+
and Ni2+ accumulation, organic acids content in NO-treated
and untreated plants grown under normal or salt / heavy metal
stress conditions were determined to highlight the possible
mechanism (s) underlying NO- induced tolerance.
protective role played by exogenous nitric oxide (NO) in
Lupinus termis L. plants subjected to salt and heavy metal
stress. Foliar spray of sodium nitroprusside was used as a NO
donor to treat lupine plants grown under different levels of
salinity (0.0, 75 and 150 mM NaCl) and Ni toxicity (0.0,100
and 150 mM NiSO4). Growth characteristics as well as
physiological changes including photosynthetic pigments,
endogenous nitric oxide content, proline, soluble sugars and
polysaccharides content, total phenols and flavonoids, some
oxidative markers (including lipid peroxidation as
malondialdehyde (MDA), H2O2, and electrolyte leakage),
endogenous phytohormones (IAA, GA3, ABA and JA),
antioxidant enzyme activities (superoxide dismutase,
peroxidase, ascorbate peroxidase, catalase and glutathione
transferase), some mineral ions such as Na+,Ca2+,K+ and Mg2+
and Ni2+ accumulation, organic acids content in NO-treated
and untreated plants grown under normal or salt / heavy metal
stress conditions were determined to highlight the possible
mechanism (s) underlying NO- induced tolerance.
Other data
| Title | "Protective role of nitric oxide against stress induced by salinity and heavy metals in plant” | Other Titles | دور أكسيد النيتريك الواقي من الإجهاد المستحث بالملوحه والعناصر الثقيلة في النبات | Authors | Nihal Yousef Esmail Ebrahim | Issue Date | 2018 |
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