EFFECTS OF NITROGEN AND ARSENIC ON PHOTOSYNTHETIC PIGMENTS, ANTIOXIDANT ENZYME ACTIVITIES AND NUTRIENT ELEMENTS CONTENT IN SAFFLOWER (CARTHAMUS TINCTORIUS L.)

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MOHAMMADI S.; HEIDARI M.; DAHMARDEH M.; ASGHERIPOUR M.R.

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Journal: Crop Production Year:2016 | Volume:8 | Issue:4 Page(s): 105-120

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Title

EFFECTS OF NITROGEN AND ARSENIC ON PHOTOSYNTHETIC PIGMENTS, ANTIOXIDANT ENZYME ACTIVITIES AND NUTRIENT ELEMENTS CONTENT IN SAFFLOWER (CARTHAMUS TINCTORIUS L.)

Author(s)

MOHAMMADI S. | HEIDARI M. | DAHMARDEH M. | ASGHERIPOUR M.R. | Issue Writer Certificate

Keywords

ARSENICQ2

PHYSIOLOGICAL PARAMETERSQ2

LIGHT PIGMENTSQ2

OXIDATIVE ENZYMESQ2

NITROGENQ2

Abstract

Background and objectives: ARSENIC is a toxic metalloid for plants. ARSENIC is polluting the environment through the natural and artificial resources. It is harmful to human health. ARSENIC in plants for the production of the reactive oxygen species (ROS) lead to destruction of nucleic acids and proteins in tissues of plants. It also reduces of photosynthesis and growth by destroy of the membranes of chloroplasts. The ARSENIC-contaminated soil cleanup is an important issue in the study of biology. This experiment was conducted in order to investigate the effects of different concentrations of ARSENIC and NITROGEN fertilizer on photosynthetic pigments, antioxidant enzyme activities and nutrient concentrations in both shoot and seed of safflower plants (cv. Goldasht).Materials and Methods: To implement of this study, a plot experiment was conducted in a factorial design as randomized complete block with three replicates in university of Zabol. NITROGEN levels including N1=75, N2=150 and N3=225 Kg ha-1 from urea source and ARSENIC treatment included: A1= control or without application of ARSENIC, A2=30, A3=60 and A4=90 mg Kg-1 soil from the Na2HASO4 source.Results: The results showed that ARSENIC treatment had a significant effect on Catalase (CAT), Ascorbate perxidase (APX) and Guaiacol peroxidase (GPX). Among the three antioxidant enzymes, by increasing ARSENIC level from control (A1) to 90 mg Kg-1 soils (A4), the activity of ascorbate peroxidase (APX) decreased and the activities of gayacol peroxidase (GPX) and catalase (CAT) increased. ARSENIC treatment had no significant effect on the photosynthesis pigments included chlorophyll a, b and cartoneid content in leaves. Among the elements content in shoot and seeds, ARSENIC treatment had only significant effect on the potassium and sodium content of safflower shoot. NITROGEN and interaction between ARSENIC and NITROGEN treatments, except on ascorbate peroxidase (APX), had significant effect on catalase (CAT) and gayacol peroxidase (GPX). The highest Gayacol peroxidase (GPX) activity was obtained at A4N3 treatment. However NITROGEN treatment increased chlorophyll a, b and cartoneid content of leaves significantly, but by increasing NITROGEN level from 75 to 225 Kg ha-1, increased potassium content and decreased sodium content of the seed.Conclusion: The results obtained from this experiment showed that, application of heavy metal element (ARSENIC) however adversely affect safflower plants but until to 30 mg ARSENIC per Kg of soil, it had not adversely affects on growth and physiological characteristics of safflower (cv. Goldasht). The adversely effect of ARSENIC was appeared at the higher levels of 30 mg ARSENIC per Kg of soil.

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APA: Copy

MOHAMMADI, S., HEIDARI, M., DAHMARDEH, M., & ASGHERIPOUR, M.R.. (2016). EFFECTS OF NITROGEN AND ARSENIC ON PHOTOSYNTHETIC PIGMENTS, ANTIOXIDANT ENZYME ACTIVITIES AND NUTRIENT ELEMENTS CONTENT IN SAFFLOWER (CARTHAMUS TINCTORIUS L.). ELECTRONIC JOURNAL OF CROP PRODUCTION, 8(4), 105-120. SID. https://sid.ir/paper/135206/en

Vancouver: Copy

MOHAMMADI S., HEIDARI M., DAHMARDEH M., ASGHERIPOUR M.R.. EFFECTS OF NITROGEN AND ARSENIC ON PHOTOSYNTHETIC PIGMENTS, ANTIOXIDANT ENZYME ACTIVITIES AND NUTRIENT ELEMENTS CONTENT IN SAFFLOWER (CARTHAMUS TINCTORIUS L.). ELECTRONIC JOURNAL OF CROP PRODUCTION[Internet]. 2016;8(4):105-120. Available from: https://sid.ir/paper/135206/en

IEEE: Copy

S. MOHAMMADI, M. HEIDARI, M. DAHMARDEH, and M.R. ASGHERIPOUR, “EFFECTS OF NITROGEN AND ARSENIC ON PHOTOSYNTHETIC PIGMENTS, ANTIOXIDANT ENZYME ACTIVITIES AND NUTRIENT ELEMENTS CONTENT IN SAFFLOWER (CARTHAMUS TINCTORIUS L.),” ELECTRONIC JOURNAL OF CROP PRODUCTION, vol. 8, no. 4, pp. 105–120, 2016, [Online]. Available: https://sid.ir/paper/135206/en

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