THE STUDY OF CU TOXICITY ON GROWTH AND TOLERANCE OF SUNFLOWER (HELIANTHUS ANNUUS L.)
HI SUN -33 CULTIVARS

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NOORANI AZAD H.; CHOBINEH D.; HAJBAGHERI M.R.; KAFILZADEH F.

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Paper Information

Journal: BIOLOGICAL SCIENCES (DANISH-I ZISTI-I IRAN) Year:2009 | Volume:4 | Issue:2 Page(s): 67-74

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Information Journal Paper

Title

THE STUDY OF CU TOXICITY ON GROWTH AND TOLERANCE OF SUNFLOWER (HELIANTHUS ANNUUS L.) HI SUN -33 CULTIVARS

Author(s)

NOORANI AZAD H. | CHOBINEH D. | HAJBAGHERI M.R. | KAFILZADEH F. | Issue Writer Certificate

Keywords

CU TOXICITY TOLERANCEQ3

CHLOROPHYLLQ2

PEROXIDASEQ2

SUNFLOWERQ2

Abstract

Cupper is one of the essential micronutrients for the normal growth and development of plants. It is also known that a heavy metal at higher level causes toxicity in most plants. This research investigated the effects of CuSo4 toxicity on growth and tolerance of SUNFLOWER cultivar Hi sun-33. The experiment was carried out under hydroponic conditions with 5 treatments (0, 25, 50, 75 and 100mM) and 4 replicates for 21days. The dry weight of roots and shoots, CHLOROPHYLLs a and b, carotenoids in leaves, soluble sugars and starch in roots and shoots, MDA content and enzyme activity of PEROXIDASE in leaves, Cu accumulation in roots and shoots were measured. The results obtained from the analyzing of Cu content in the roots and shoots of different treatments indicated that Cu absorption goes up by increasing level of Cu in growth solution and Cu accumulates in the roots and its transport to the shoots is low. The dry weight of roots significantly decreased in comparison to control by increasing Cu concentration. The reduction of dry weight of shoots in treatments of 75 and 100mM were significant. The decrease of CHLOROPHYLLs a and b in leaves, except in treatment of 25mM was significant in comparison to control. The carotenoids content significantly decreased in treatments of 75 and 100mM Cu. Determination of the amount of soluble sugars indicated that the soluble sugars of roots and shoots increased significantly by increase in Cu, but starch levels were decreased in both. The MAD content in leaves significantly increased with increasing of Cu toxicity. The increase of PEROXIDASE activity in leaves, except for treatment of 25mM was significant by increasing the level of Cu in growth solution. The Cu tolerance is associated with the Cu accumulation in roots, increase of soluble sugars and activation of antioxidant defense system.

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APA: Copy

NOORANI AZAD, H., CHOBINEH, D., HAJBAGHERI, M.R., & KAFILZADEH, F.. (2009). THE STUDY OF CU TOXICITY ON GROWTH AND TOLERANCE OF SUNFLOWER (HELIANTHUS ANNUUS L.) HI SUN -33 CULTIVARS. BIOLOGICAL SCIENCES (DANISH-I ZISTI-I IRAN), 4(2), 67-74. SID. https://sid.ir/paper/183726/en

Vancouver: Copy

NOORANI AZAD H., CHOBINEH D., HAJBAGHERI M.R., KAFILZADEH F.. THE STUDY OF CU TOXICITY ON GROWTH AND TOLERANCE OF SUNFLOWER (HELIANTHUS ANNUUS L.) HI SUN -33 CULTIVARS. BIOLOGICAL SCIENCES (DANISH-I ZISTI-I IRAN)[Internet]. 2009;4(2):67-74. Available from: https://sid.ir/paper/183726/en

IEEE: Copy

H. NOORANI AZAD, D. CHOBINEH, M.R. HAJBAGHERI, and F. KAFILZADEH, “THE STUDY OF CU TOXICITY ON GROWTH AND TOLERANCE OF SUNFLOWER (HELIANTHUS ANNUUS L.) HI SUN -33 CULTIVARS,” BIOLOGICAL SCIENCES (DANISH-I ZISTI-I IRAN), vol. 4, no. 2, pp. 67–74, 2009, [Online]. Available: https://sid.ir/paper/183726/en

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