EFFECT OF POTASSIUM NITRATE ON ANTIOXIDANT ENZYMES ACTIVITY OF AGED MILK THISTLE (SILYBUM MARIANUM) SEEDS

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EBADIE ALI; PARMOON GHASEM; JAHANBAKHSH SOODABE

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Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2016 | Volume:5 | Issue:16 Page(s): 27-44

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Information Journal Paper

Title

EFFECT OF POTASSIUM NITRATE ON ANTIOXIDANT ENZYMES ACTIVITY OF AGED MILK THISTLE (SILYBUM MARIANUM) SEEDS

Author(s)

EBADIE ALI | PARMOON GHASEM | JAHANBAKHSH SOODABE | Issue Writer Certificate

Keywords

PRIMINGQ2

POTASSIUM NITRATEQ2

SUPEROXIDE DISMUTASEQ2

CATALASEQ1

MILK THISTLEQ1

Abstract

Seed aging increases activity of reactive oxygen molecules and antioxidant enzymes have a key role against increased oxidative stress which is caused by free radicals. Effect of seed PRIMING on increasing of these enzymes activity and its impacts on seed germination characteristics of deteriorated MILK THISTLE seeds was studied in a factorail experiment based on Complete Randomized Design (CRD) with three replications in University of Mohaghegh Ardabili in 2013. PRIMING treatment was done in five levels (0, 15, 30, 45 and 60 mg per liter POTASSIUM NITRATE) and seed aging by 95% relative humidity and 45o at four levels (non-aging, 48, 96 and 144 hours aging). The results showed that enhancing seed aging reduced the activity of antioxidant enzymes, SUPEROXIDE DISMUTASE (62%), CATALASE (34%), peroxidase (43%), ascorbate peroxidase (57%), glutathione peroxidase (61%) and glutathione reductase (58%), which eventually led to a decrease in germination percentage (25%) and germination rate (15%). Seed PRIMING reduced aging effects and increased the activity of antioxidant enzymes, which eventually led to an increase in germination. The concentration of 30- 40 mgL-1 POTASSIUM NITRATE showed the greatest impact.Regression results showed that the enzyme activity follows a linear relationship with the percentage and rate of seed germination. According to path analysis results, the antioxidant enzymes had direct and indirect effects on the germination rate and germination percent respectively, during changes in free radicals activity, so that the peroxidase activity had the greatest impact on the germination percent and rate (0.56 0.73 respectively).

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APA: Copy

EBADIE, ALI, PARMOON, GHASEM, & JAHANBAKHSH, SOODABE. (2016). EFFECT OF POTASSIUM NITRATE ON ANTIOXIDANT ENZYMES ACTIVITY OF AGED MILK THISTLE (SILYBUM MARIANUM) SEEDS. JOURNAL OF PLANT PROCESS AND FUNCTION, 5(16), 27-44. SID. https://sid.ir/paper/234222/en

Vancouver: Copy

EBADIE ALI, PARMOON GHASEM, JAHANBAKHSH SOODABE. EFFECT OF POTASSIUM NITRATE ON ANTIOXIDANT ENZYMES ACTIVITY OF AGED MILK THISTLE (SILYBUM MARIANUM) SEEDS. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2016;5(16):27-44. Available from: https://sid.ir/paper/234222/en

IEEE: Copy

ALI EBADIE, GHASEM PARMOON, and SOODABE JAHANBAKHSH, “EFFECT OF POTASSIUM NITRATE ON ANTIOXIDANT ENZYMES ACTIVITY OF AGED MILK THISTLE (SILYBUM MARIANUM) SEEDS,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 5, no. 16, pp. 27–44, 2016, [Online]. Available: https://sid.ir/paper/234222/en

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