Remediation of Cadmium Stress in Strawberry Plants Using Humic Acid and Silicon Applications

Doğan, Murat; Bolat, İbrahim; Karakaş, Sema; Dikilitaş, Murat; Gutiérrez‐Gamboa, Gastón; Kaya, Özkan

doi:10.3390/life12121962

Cited by 14 publications

(3 citation statements)

References 57 publications

(99 reference statements)

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“…Cadmium stress decreases cellular activity, physiological, and photosynthetic processes due to an imbalance in dietary requirements, metallic toxicity, osmotic, and oxidative stressors, as well as the photosynthetic process [48,49]. This study has demonstrated that the application of humic acid with selenium improves the reduction of abiotic stress (i.e., stress brought on by Cd) by keeping nutritional balance and osmotic stress in chili plants.…”

Section: Discussionmentioning

confidence: 77%

Humic Acid and Selenium Supplementation Modulate the Growth and Antioxidant Potential of Chili under Cadmium Stress

Zohaib,

Ashraf,

Fatima

et al. 2023

Agronomy

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Maximizing food production under adverse conditions is a major challenge to food security and sustainability in the face of population growth and climatic change. The use of amendments applied as a supplement under adverse conditions may play a significant role in the mitigation of biotic and abiotic stress. This study aimed to explore the morpho-physio-biochemical changes in chili in response to cadmium (Cd) stress. The present study investigated the effects of foliar-applied selenium (Na2SeO4) (3 µM) and soil-applied humic acid (250 mg kg−1 w/w soil) in the sole and synergistic form under varying levels of cadmium stress (0, 2, and 4 mM using CdCl2) in chili. Results revealed that a linear decrease was noticed in the growth, biomass, and phenological attributes of chili plants by increasing the Cd stress. More reduction was noticed at the higher levels of Cd stress as compared to control due lowering plant dry weight (18.15 and 39.67%), relative water content (RWC) (10.73 and 24.17%), total chlorophyll concentrations (16.01 and 31.44%) and increased electrolyte leakage (49.44 and 129.35%) and malonaldehyde contents (MDA) (68.41 and 104.04%). Dry biomass significantly increased with humic acid and selenium treatments, regardless of cadmium level. The reduced enzymatic activities associated with reactive oxygen species (ROS) detoxification, underscores the pivotal role of Se and humic acid in maintaining redox homeostasis. The combined effect of selenium and humic acid proved better results as compared to the sole application in minimizing Cd uptake in roots and fruit. This study demonstrates that the application of humic acid and selenium activates physio-biochemical defense responses against cadmium stress in chili plants and provides significant pavement for the cultivation of chili in cadmium-containing soils with a target of high-yielding and quality.

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Section: Discussionmentioning

confidence: 77%

Humic Acid and Selenium Supplementation Modulate the Growth and Antioxidant Potential of Chili under Cadmium Stress

Zohaib,

Ashraf,

Fatima

et al. 2023

Agronomy

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“…In the study, it was determined that humic acid application increased shoot fresh weight by 10%, shoot dry weight by 6.2%, root fresh weight by 23%, root dry weight by 35.2%, shoot length by 7% and root length by 4.1% in tomato plants (Table 2). Humic acid application has been reported to increase shoot/root fresh and dry weights in tomato (Aksoy, 2019;Khan et al, 2020;Ural, 2020) and strawberry plants (Doğan, 2018). Ashraf and Raddy (2014) found that humic acid application resulted in an increase in root fresh weight in eggplant and tomato plants.…”

Section: Effects Of Humic Acid On the Growth Parametersmentioning

confidence: 99%

Humic Acid Mitigates Drought Stress in Tomato

Aytaç,

Ünlü,

Erkan

et al. 2024

Bilge International Journal of Science and Technology Research

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Drought stress, one of the most important abiotic stresses, severely limits global crop production. To increase tolerance to this stress, environmentally friendly practices are emphasised. Humic acid, one of the most important natural biostimulants, has positive effects on plant growth and yield. Recently, it has also been reported to play an important role in resistance to various abiotic stresses. However, many physiological and molecular mechanisms by which humic acid confers drought resistance have not been fully elucidated. Therefore, the effects of humic acid application on different morphological and physiological stress indicators and some antioxidative enzyme gene expressions of tomato seedlings under drought stress conditions were investigated in this study. It was found that drought stress decreased shoot fresh/dry weight, root fresh/dry weight, shoot and root length, chlorophyll and relative water content of plants by 67%, 56%, 31%, 38%, 22%, 20%, 15% and 25%, respectively. Humic acid application significantly increased these parameters, while reducing ion leakage, MDA and proline levels. The antioxidant enzyme gene expression of tomato seedlings under drought conditions showed no significant difference in SOD and APX gene expression, whereas CAT gene expression increased and GR gene expression decreased with humic acid application. Our results showed that humic acid application interacted with stress-related antioxidant enzyme gene expression and may be effective in reducing drought stress.

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“…It has been recognized that utilizing biostimulants in crop production increases plant vigor, crop yield, and resistance to biotic and abiotic stressors [16,[20][21][22]. Recent studies have confirmed that these products can reduce the bioavailability of PTEs in soil and their toxic effects to plants [23][24][25]. However, the effect of biostimulants on Cd dynamics to soil and plants in contaminated soils has not been sufficiently elucidated.…”

Section: Introductionmentioning

confidence: 99%

Bioavailability of Cd in Plantago weldenii and Sonchus oleraceus Plants: The Effects of a Humic and Fulvic Acids-Based Biostimulant

Grammenou,

Petropoulos,

Antoniadis

2024

Horticulturae

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Cadmium (Cd) contamination poses a major threat to plants and human health, as well as to ecosystem services. Biostimulants provide a promising eco-friendly solution to enhance the phytoremediation of Cd-contaminated soils. We examined the influence of a humic and fulvic acids-based biostimulant on two plant species, e.g., Plantago weldenii and Sonchus oleraceus (common sowthistle), in a soil spiked with Cd at 45 mg kg−1. The aim of this study was to determine whether a biostimulant can potentially affect Cd mobility in soil and absorption in plant tissues. We found that the biostimulant significantly decreased Cd bioavailability (recorded as DTPA extractability) in the soil where Plantago was grown from 17.57 to 13.12 mg kg−1, probably due to the Cd immobilization effect of the added biostimulant. However, the biostimulant had the opposite effect in the soil where S. oleraceus was grown (Cd-DTPA significantly increased from 10.13 to 13.03 mg kg−1). S. oleraceus was found to have accumulated higher Cd concentrations in its aerial parts, resulting in a soil-to-plant transfer value close to 1 and root-to-shoot translocation value well above 1. These two indices exhibited the potential of S. oleraceus to be used as hyperaccumulator in Cd-contaminated soils, while P. weldenii behaved rather as a Cd excluder. These findings highlight the complex dynamics of added biostimulants and Cd behavior in soil and plants. We recognize the need for further research so that the mechanisms dictating Cd behavior after biostimulant application can be better elucidated.

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Remediation of Cadmium Stress in Strawberry Plants Using Humic Acid and Silicon Applications

Cited by 14 publications

References 57 publications

Humic Acid and Selenium Supplementation Modulate the Growth and Antioxidant Potential of Chili under Cadmium Stress

Humic Acid and Selenium Supplementation Modulate the Growth and Antioxidant Potential of Chili under Cadmium Stress

Humic Acid Mitigates Drought Stress in Tomato

Bioavailability of Cd in Plantago weldenii and Sonchus oleraceus Plants: The Effects of a Humic and Fulvic Acids-Based Biostimulant

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