Mitigation of salt stress in Phaseolus vulgaris L. by dopamine: Effects on growth, physiological parameters and antioxidant activity

Esin Dadasoglu; Metin Turan; Ertan Yildirim; Sezai Ercisli; Amine Assouguem; Ahmed El-Haidani; Ghadeer M. Albadrani; Muath Q. Al-Ghadi; Amany A. Sayed; Mohamed M. Abdel-Daim; Sadiye Peral Eyduran

doi:10.2478/fhort-2025-0010

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Mitigation of salt stress in Phaseolus vulgaris L. by dopamine: Effects on growth, physiological parameters and antioxidant activity

Folia Horticulturae

Volume 37 (2025): Issue 1 (July 2025)

By: Esin Dadasoglu, Metin Turan, Ertan Yildirim, Sezai Ercisli, Amine Assouguem, Ahmed El-Haidani, Ghadeer M. Albadrani, Muath Q. Al-Ghadi, Amany A. Sayed, Mohamed M. Abdel-Daim and Sadiye Peral Eyduran

Open Access

|Aug 2025

Figures & Tables

Table 1.

Analysis of variance for the effects of salt DA and interactions of growth parameters of bean.

Source	Plant height	Stem diameter	Leaf area	Shoot FW	Shoot DW	Root FW	Root DW
Salt	***	***	***	***	***	***	***
DA	***	***	***	***	***	***	***
Salt × dopamine	***	***	***	***	***	***	***

1*** Significant at p < 0.001.

1 DA, dopamine; DW, dry weight; FW, fresh weight.

Table 2.

Analysis of variance for the effects of salt DA and interactions of H₂O₂, MDA, LRWC, CRV, EL, proline, enzyme, hormone and mineral contents of bean.

Source	H₂O₂	MDA	LRWC	CRV	EL	Proline	CAT	POD	SOD	IAA	ABA	SA	K	Ca	Na
Salt	***	***	***	***	***	***	***	***	***	NS	***	***	***	***	***
DA	***	***	***	***	***	***	***	***	***	***	***	***	***	***	***
Salt × DA	***	***	***	***	***	***	***	***	***	***	***	***	***	***	***

1*** Non-significant or significant at p < 0.001, respectively.

1 ABA, abscisic acid; CAT, catalase; DA, dopamine; EL, electrolyte leakage; IAA, indole acetic acid; LRWC, leaf relative water content; MDA, malondialdehyde; NS, non-significant; POD, peroxidase; SA, salicylic acid; SOD, superoxide dismutase.

Effects of DA on activities of CAT, POD and SOD in leaves of bean plants under salt stress. Data presented are the means ± SD. Different letters indicate significant difference (p ≤ 0.05) among the treatments. CAT, catalase; DA, dopamine; POD, peroxidase; SOD, superoxide dismutase.

Effects of DA on IAA, ABA SA and proline content and K/Na ratio in leaves of bean plants under salt stress. Data presented are the means ± SD. Different letters on the bars indicate significant difference (p ≤ 0.05) between the treatments. ABA, abscisic acid; DA, dopamine; IAA, indole acetic acid; SA, salicylic acid.

Table 3.

Effect of DA on growth parameters of bean plants under salt stress.

NaCl (mM)	DA (μM)	Plant height (cm)	Stem diameter (mm)	Leaf area (cm² · plant⁻¹)	Shoot FW (g · plant⁻¹)	Shoot DW (g · plant⁻¹)	Root FW (g · plant⁻¹)	Root DW (g · plant⁻¹)
0	0	57.75 ±3.3 a	3.35 ± 0.05 b	315.76 ± 14.09 c	9.59 ±0.05 cd	1.97 ± 0.04 d	3.29 ± 0.03 e	0.75 ± 0.04 de
	50	57.75 ± 1.4 a	3.31 ± 0.18 be	343.75 ± 8.76 a	11.54 ± 0.39 a	2.21 ± 0.03 b	3.62 ± 0.07 b	0.86 ± 0.04 c
	100	56.25 ± 0.5 ab	3.66 ± 0.18 a	315.75 ± 2.95 c	9.95 ± 0.08 c	2.11 ± 0.04 c	3.82 ± 0.02 a	0.81 ± 0.03 cd
	150	50.42 ± 1.8 c	3.57 ± 0.06 a	321.37 ± 15.23 be	11.42 ± 0.07 a	2.89 ± 0.09 a	3.87 ± 0.06 a	1.00 ± 0.08 a
	200	56.25 ± 1.3 ab	3.65 ± 0.09 a	330.82 ± 10.44 ab	10.92 ± 0.23 b	2.12 ± 0.12 c	3.65 ± 0.08 b	0.92 ± 0.04 b
50	0	55.08 ± 1.7 ab	3.19 ± 0.06 c	261.28 ± 1.92 f	8.94 ± 0.17 e	1.44 ± 0.03 g	2.69 ± 0.05 g	0.53 ± 0.021
	50	54.50 ± 1.3 b	3.28 ± 0.01 be	306.73 ± 6.70 cd	9.89 ± 0.20 c	1.69 ± 0.02 e	3.32 ± 0.05 de	0.65 ± 0.04 fg
	100	54.50 ± 1.0 b	3.32 ± 0.03 be	282.48 ± 2.23 e	9.25 ± 0.27 de	1.59 ± 0.02 f	3.51 ± 0.04 c	0.63 ± 0.01 gh
	150	56.25 ± 0.8 ab	3.70 ± 0.09 a	309.99 ± 4.54 c	11.18 ± 0.16 ab	1.97 ± 0.06 d	3.37 ± 0.04 de	0.74 ± 0.04 e
	200	53.83 ± 1.5 b	3.31 ± 0.05 be	294.12 ± 13.87 de	9.73 ± 0.55 c	1.56 ± 0.03 f	3.41 ±0.03 cd	0.68 ± 0.03 fg
100	0	31.42 ± 1.3 e	2.87 ± 0.07 e	117.44 ± 6.80 k	3.72 ± 0.08 i	1.05 ± 0.08 j	1.86 ± 0.081	0.41 ± 0.02 j
	50	30.67 ± 0.9 e	2.92 ± 0.02 de	138.71 ± 3.11 j	3.85 ± 0.04t	1.15 ± 0.051	2.69 ± 0.06 g	0.55 ± 0.01 i
	100	30.08 ± 1.0 e	3.34 ± 0.04 b	169.25 ± 1.53 h	8.53 ± 0.30 f	1.27 ± 0.03 h	3.10 ± 0.05 f	0.70 ± 0.02 ef
	150	36.25 ± 1.0 d	3.35 ± 0.11 b	239.78 ± 3.71 g	5.96 ± 0.18 g	1.23 ± 0.04 hi	2.52 ± 0.12 h	0.58 ± 0.03 hi
	200	31.25 ± 0.3 e	3.03 ± 0.05 d	153.23 ± 5.031	5.10 ± 0.13 h	1.24 ± 0.03 hi	3.03 ± 0.07 f	0.64 ± 0.01 fh

1 Different letters in the same column indicate significant difference (p ≤ 0.05) among the treatments.

1 DA, dopamine; DW, dry weight; FW, fresh weight.

Table 4.

Effect of DA on EL, CRV (SPAD), LRWC, H₂O₂ and MDA of bean plants under salt stress.

NaCl (mM)	DA (μM)	EL (%)	CRV (SPAD)	LRWC (%)	H₂O₂ (mmol · kg⁻¹)	MDA (mmol · kg⁻¹)
0	0	24.65 ± 1.44 g	36.93 ± 0.78 ab	81.80 ± 1.96 ab	0.54 ± 0.09 gh	7.92 ± 0.37 fg
	50	22.88 ± 2.01 g	35.73 ± 1.47 b	82.95 ± 3.01 ab	0.51 ± 0.03 gh	6.33 ± 0.83 g
	100	21.99 ± 2.63 g	35.87 ± 1.87 b	85.18 ± 0.86 a	0.46 ± 0.06 h	7.23 ± 1.06 fg
	150	23.01 ± 1.16 g	38.23 ± 0.23 a	85.52 ± 2.94 a	0.55 ± 0.06 gh	6.95 ± 1.54 fg
	200	22.82 ± 1.27 g	37.77 ± 1.51 a	80.47 ± 3.52 b	0.66 ± 0.08 gh	8.06 ± 0.56 fg
50	0	52.90 ± 0.97 b	23.48 ± 0.62 e	69.62 ± 1.38 ef	2.38 ± 0.17 c	60.08 ± 14.91 c
	50	42.34 ± 1.88 d	28.50 ± 1.23 c	74.76 ± 4.25 cd	0.81 ± 0.07 f-h	9.33 ± 2.16 fg
	100	43.54 ± 0.73 d	24.63 ± 0.31 de	72.85 ± 2.31 ce	1.12 ± 0.30 e-h	23.45 ± 5.62 de
	150	34.55 ± 1.21 f	29.47 ± 0.87 c	75.42 ± 1.74 c	1.03 ± 0.20 e-h	15.93 ± 0.89 e-g
	200	38.52 ± 1.74 e	25.77 ± 0.58 d	70.89 ± 2.51 de	1.26 ± 0.11 e-g	27.88 ± 0.93 d
100	0	61.99 ± 0.61 a	18.67 ± 0.59 g	44.72 ± 2.27 ı	8.59 ± 1.45 a	165.86 ± 7.86 a
	50	54.59 ± 3.48 b	23.23 ± 0.81 e	59.30 ± 0.83 h	1.43 ± 0.11 d-f	16.50 ± 0.53 ef
	100	49.32 ± 0.40 c	23.47 ± 1.52 e	66.12 ± 0.99 fg	2.05 ± 0.24 cd	102.83 ± 0.76 b
	150	44.70 ± 0.72 d	22.70 ± 1.35 ef	66.58 ± 1.41 fg	1.69 ± 0.06 c-e	28.21 ± 2.39 d
	200	48.80 ± 2.21 c	21.00 ± 0.75 f	64.00 ± 0.96 g	4.03 ± 0.31 b	108.47 ± 6.95 b

1 Different letters in the same column indicate significant difference (p ≤ 0.05) among the treatments.

1 DA, dopamine; EL, electrolyte leakage; LRWC, leaf relative water content; MDA, malondialdehyde.

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DOI: https://doi.org/10.2478/fhort-2025-0010 | Journal eISSN: 2083-5965 | Journal ISSN: 0867-1761

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Language: English

Page range: 113 - 126

Submitted on: Jan 18, 2025

Accepted on: Jun 9, 2025

Published on: Aug 6, 2025

Published by: Polish Society for Horticultural Sciences (PSHS)

In partnership with: Paradigm Publishing Services

Publication frequency: 2 issues per year

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© 2025 Esin Dadasoglu, Metin Turan, Ertan Yildirim, Sezai Ercisli, Amine Assouguem, Ahmed El-Haidani, Ghadeer M. Albadrani, Muath Q. Al-Ghadi, Amany A. Sayed, Mohamed M. Abdel-Daim, Sadiye Peral Eyduran, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 37 (2025): Issue 1 (July 2025)

Mitigation of salt stress in Phaseolus vulgaris L. by dopamine: Effects on growth, physiological parameters and antioxidant activity

Figures & Tables

Table 1.

Table 2.

Figure 1.

Figure 2.

Table 3.

Table 4.

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