Silicon alleviates salt stress by modulating antioxidant enzyme activities in Dianthus caryophyllus ‘Tula’

2015 ◽  
Vol 56 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Prabhakaran Soundararajan ◽  
Abinaya Manivannan ◽  
Yoo Gyeong Park ◽  
Sowbiya Muneer ◽  
Byoung Ryong Jeong
Keyword(s):  
Salt Stress ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Dianthus Caryophyllus ◽  
Antioxidant Enzyme Activities

scholarly journals Effect of Salt Stress on Na Accumulation, Antioxidant Enzyme Activities and Activity of Cell Wall Peroxidase of Huckleberry (Solanum scabrum) and Eggplant (Solanum melongena)

2015 ◽  
Vol 17 (06) ◽  
pp. 1149-1156 ◽  
Author(s):  
Dekoum Vincent Marius Assaha ◽  
Liyun Liu ◽  
Ahmad Mohammad M. Mekawy ◽  
Akihiro Ueda ◽  
Toshinori Nagaoka ◽  
...  
Keyword(s):  
Cell Wall ◽  
Salt Stress ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Solanum Melongena ◽  
Antioxidant Enzyme Activities

scholarly journals Proline over-accumulation alleviates salt stress and protects photosynthetic and antioxidant enzyme activities in transgenic sorghum [Sorghum bicolor (L.) Moench]

2015 ◽  
Vol 94 ◽  
pp. 104-113 ◽  
Author(s):  
P. Surender Reddy ◽  
Gadi Jogeswar ◽  
Girish K. Rasineni ◽  
M. Maheswari ◽  
Attipalli R. Reddy ◽  
...  
Keyword(s):  
Salt Stress ◽  
Sorghum Bicolor ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Antioxidant Enzyme Activities ◽  
Sorghum Bicolor L

scholarly journals Effects of plant growth-promoting rhizobacterium (PGPR) and arbuscular mycorrhizal fungus (AMF) on antioxidant enzyme activities in salt-stressed bean (phaseolus vulgaris l.)

2014 ◽  
Vol 60 (1) ◽  
pp. 10-21 ◽  
Author(s):  
Omid Younesi ◽  
Ali Moradi
Keyword(s):  
Salt Stress ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Shoot Biomass ◽  
Antioxidant Enzyme Activities ◽  
Phaseolus Vulgaris L ◽  
Plant Growth Promoting ◽  
Growth Promoting

Abstract Plant Growth-Promoting Rhizobacterium (PGPR) represents a wide variety of soil bacteria that, when grown in association with a host plant, result in stimulation of growth of their host. The aim of this study was to investigate the influence of inoculation with a PGPR, Pseudomonas fluorescence, alone or in combination with an arbuscular mycorrhizal fungus, Glomus mosseae (Nicol. & Gerd.), on antioxidant enzyme activities (catalase (CAT) and peroxidase (POX)), phosphatase activity, solutes accumulation, growth and minerals nutrient uptake in shoots of bean (Phaseolus vulgaris L.) affected by three levels of salt stress. Salinity decreased bean growth, regardless of the biological treatment and the salt stress level. The plants inoculated with P. fluorescence had significantly greater shoot biomass than the control plants at all salinity levels, whereas the mycorrhizal inoculation treatments were only effective in increasing shoot biomass at a low salinity level. The plants inoculated with P. fluorescence presented higher concentrations of shoots’ K+ and lower concentrations of shoots’ Na+ under high salt conditions. Salt stress increased shoots’ proline concentration, particularly in plants inoculated with the PGPR. Increasing salinity stress raised significantly the antioxidant enzyme activities, including those of total POX and CAT, of bean shoots compared with their corresponding nonstressed plants. The PGPR strain induced a higher increase in these antioxidant enzymes in response to severe salinity. Inoculation with selected PGPR could serve as a useful tool for alleviating salinity stress in salt-sensitive plants.

scholarly journals THE EFFECTS OF NITRIC OXIDE ON SOME ANTIOXIDANT ENZYME ACTIVITIES UNDER SALT STRESS IN SUNFLOWER PLANTS

2019 ◽  
Vol 18 (5) ◽  
pp. 171-179
Author(s):  
Fusun Yurekli ◽  
Oguz A. Kirecci ◽  
Ilknur Celik
Keyword(s):  
Nitric Oxide ◽  
Salt Stress ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Antioxidant Enzyme Activities ◽  
Oxygen Species ◽  
Negative Effects ◽  
No Donor ◽  
Tolerant Variety ◽  
Leaf Tissues

The effects of externally applied sodium nitroprusside on superoxide dismutase (SOD), glutathione peroxidase (GPx), ascorbate peroxidase (APX), and catalase (CAT) antioxidant enzyme activities, nitric oxide (NO) levels have investigated in salt stress resistant and sensitive sunflower plants. NaCl treatments and SNP treatments simultaneous with salt application (NaCl + SNP) were performed. SOD, GPx, APX and CAT antioxidant enzyme activities and NO levels, showed differences in leaf tissues treated with 100 µM SNP, different concentrations of NaCl, and NaCl + SNP. SOD, GPx and APX enzyme activities were generally increased in sensitive variety but decreased in tolerant variety. However, while generally increase in CAT enzyme activity was determined in tolerant type, a reduction was established in sensitive type. An increase was determined in both types in NO levels. It is evident from these results that administration of NO donor SNP can cope with reactive oxygen species in both varieties. This study indicates that the negative effects of salt stress on different sun flower varieties can be recovered by nitric oxide.

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