THE ROLE OF SALICYLIC ACID IN MODULATING THE EFFECT OF CADMIUM ON SOME PHYSIOLOGICAL RESPONSES IN SUNFLOWER (HELIANTHUS ANNUS L.) LEAVES

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MORADKHANI S.; KHAVARI NEJAD R.A.; DILMAGHANI K.; CHAPARZADEH N.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2013 | Volume:5 | Issue:18 Page(s): 37-50

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Title

THE ROLE OF SALICYLIC ACID IN MODULATING THE EFFECT OF CADMIUM ON SOME PHYSIOLOGICAL RESPONSES IN SUNFLOWER (HELIANTHUS ANNUS L.) LEAVES

Author(s)

MORADKHANI S. | KHAVARI NEJAD R.A. | DILMAGHANI K. | CHAPARZADEH N. | Issue Writer Certificate

Keywords

CADMIUM TOXICITYQ2

CHLOROPHYLLQ2

GROWTH PARAMETERSQ2

HELIANTHUS ANNUUSQ2

PROLINEQ3

PROTEINQ3

SALICYLIC ACIDQ3

Abstract

Currently, the effect of heavy metal pollution on plants, animals and human being is one of the most important worldwide environmental problems. Finding a way to reduce the heavy metals toxicity can be very useful. This study investigated the interaction of cadmium (as a heavy metal and stress factor) and SALICYLIC ACID (as an antioxidant and antistress) on some physiological parameters of sunflower plants (growth parameters, amounts of CHLOROPHYLL, PROTEIN and PROLINE) as factorial with a completely randomized design with four replications in greenhouse conditions. Sunflower plants were exposed to CdCl2 treatments (0, 50,100,150 and 200 mM) and then were treated with SALICYLIC ACID (0, 250 and 500 mM) as foliage spraying. The CHLOROPHYLL content was measured in leaves. After harvesting of plants, GROWTH PARAMETERS were measured and amounts of PROLINE and PROTEIN were measured. Statistical analyses also showed excess Cd reduced photosynthetic pigments (chlorophyll a, b and a+b) of sunflower leaves and SALICYLIC ACID increased them. However, Cd´SA interactions on Chl a, Chl b and Chl a+b contents of leave were not significant (ns). Statistical analyses showed excess Cd reduced GROWTH PARAMETERS (fresh weight and number of leaves) and SA increased them compared with the control. Maximum reduction in these parameters was at 200 mmol Cd and 0 mmol of SA. PROLINE content in the leaves increased under Cd stress and decreased by SA. Cd´SA interactions on PROLINE content were significant. PROTEIN content in leaves of sunflower is shown in decreasing trend with increasing concentrations of Cd .Exogenous application of SA increased the amount of PROTEIN in sunflower plants exposed to Cd stress. Cd´SA interactions on PROTEIN content in leaves were significant. Exogenous application of SA appeared to induce an adaptive response to Cd toxicity including the accumulation of organic solutes leading to protective reactions to the photosynthetic pigments in sunflower. This study showed that treatment with SA alleviated the inhibitory and toxic effects of Cd in sunflower plants.

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APA: Copy

MORADKHANI, S., KHAVARI NEJAD, R.A., DILMAGHANI, K., & CHAPARZADEH, N.. (2013). THE ROLE OF SALICYLIC ACID IN MODULATING THE EFFECT OF CADMIUM ON SOME PHYSIOLOGICAL RESPONSES IN SUNFLOWER (HELIANTHUS ANNUS L.) LEAVES. JOURNAL OF RESEARCH IN CROP SCIENCES, 5(18), 37-50. SID. https://sid.ir/paper/168042/en

Vancouver: Copy

MORADKHANI S., KHAVARI NEJAD R.A., DILMAGHANI K., CHAPARZADEH N.. THE ROLE OF SALICYLIC ACID IN MODULATING THE EFFECT OF CADMIUM ON SOME PHYSIOLOGICAL RESPONSES IN SUNFLOWER (HELIANTHUS ANNUS L.) LEAVES. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2013;5(18):37-50. Available from: https://sid.ir/paper/168042/en

IEEE: Copy

S. MORADKHANI, R.A. KHAVARI NEJAD, K. DILMAGHANI, and N. CHAPARZADEH, “THE ROLE OF SALICYLIC ACID IN MODULATING THE EFFECT OF CADMIUM ON SOME PHYSIOLOGICAL RESPONSES IN SUNFLOWER (HELIANTHUS ANNUS L.) LEAVES,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 5, no. 18, pp. 37–50, 2013, [Online]. Available: https://sid.ir/paper/168042/en

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