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Hafeez K, Atif M, Perveen S, Parveen A, Akhtar F, Yasmeen N. Unraveling the contribution of copper seed priming in enhancing chromium tolerance in wheat by improving germination, growth, and grain yield. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:39549-39569. [PMID: 38822178 DOI: 10.1007/s11356-024-33848-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 05/25/2024] [Indexed: 06/02/2024]
Abstract
Exposure to chromium (Cr) on farmlands drastically restricts the growth and productivity of cereal crops, including wheat (Triticum aestivum L.). Utilizing micronutrients, the seed-priming strategy is crucial to preventing the adverse consequences of Cr-stress. Nevertheless, additional investigation needs to be conducted to figure out whether Cu-priming remedies are beneficial for wheat experiencing Cr-stress. The objective of this study was to ascertain the contribution of Cu-treated seed priming in the mitigation of detrimental impacts of Cr-stress on wheat germination, growth, and production. Two wheat cultivars, Dilkash-20 and Subhani-21, were subjected to seed priming treatments (0 mg/L, 0.1 mg/L, and 1.0 mg/L) of Cu under Cr-stress levels (200 mg/kg) in two successive experiments, respectively, petri-dish and soil-filled pot experiments. The Cu-priming significantly enhanced the wheat seed germination, plant growth, and grain yield under Cr-stress. Cu priming improved enzyme activities such as glutathione peroxidase (14.60, 16.30%), superoxide dismutase (62.55, 115.21%), peroxidase, catalase (78.39, 80.23%), ascorbate peroxidase(17.72, 20.32%), and key primary and secondary metabolites such as proline (54.19, 81.27%), glycine betaine (40.13, 79.39%), total soluble proteins (47.92, 51.58%), phenolics (40.05, 18.61%), and flavonoids (56.90, 113.46%), respectively, of Dilkash-20 and Subhani-21 under Cr-stress. The outcome of our investigation underscored the efficacy of Cu-priming treatments (0.1 mg/L and 1.0 mg/L) in Cr-stress circumstances to augment wheat germination, growth, and grain yield.
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Affiliation(s)
- Khadija Hafeez
- Department of Botany, Government College University, Faisalabad-38000, Pakistan
| | - Muhammad Atif
- Department of Botany, Government College University, Faisalabad-38000, Pakistan
| | - Shagufta Perveen
- Department of Botany, Government College University, Faisalabad-38000, Pakistan.
| | - Abida Parveen
- Department of Botany, Government College University, Faisalabad-38000, Pakistan
| | - Faiza Akhtar
- Department of Botany, Government College University, Faisalabad-38000, Pakistan
| | - Nadia Yasmeen
- Department of Botany, Government College University, Faisalabad-38000, Pakistan
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Qadir M, Hussain A, Shah M, Hamayun M, Iqbal A, Irshad M, Khan ZH, Islam B, Elansary HO, Mahmoud EA, Lee IJ. Pantoea conspicua promoted sunflower growth and engulfed rhizospheric arsenate by secreting exopolysaccharide. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107826. [PMID: 37331076 DOI: 10.1016/j.plaphy.2023.107826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/21/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023]
Abstract
A rhizobacterium, Pantoea conspicua, was examined against sunflower seedlings' growth under arsenate stress. Sunflower upon exposure to arsenate resulted in compromised growth that might be due to the accumulation of higher concentrations of arsenate and reactive oxygen species (ROS) in seedlings' tissues. The deposited arsenate led to oxidative damage and electrolyte leakage, making the sunflower seedlings vulnerable to compromise its growth and development. However, inoculation of sunflower seedlings with P. conspicua alleviated arsenate stress in host by initiating a multilayered defence mechanism. In fact, P. conspicua filtered out 75.1% of the arsenate from growth medium that were available to the plant roots in the absence of the said strain. To accomplish such activity, P. conspicua secreted exopolysaccharides as well as altered lignification in host roots. The arsenate (24.9%) that made its way to plant tissues was countered by helping the host seedlings to produce higher levels of indole acetic acid, non enzymatic antioxidants (phenolics and flavonoids) and antioxidant enzymes (catalase, ascorbte peroxidase, peroxidase, superoxide dismutase). As a result, ROS accumulation and electrolyte leakage were brought back to normal levels as observed in control seedlings. Hence, the rhizobacterium associated host seedlings achieved higher net assimilation (127.7%) and relative growth rate (113.5%) under 100 ppm of arsenate stress. The work concluded that P. conspicua alleviated arsenate stress in the host plants by imposing physical barrier as well as improving host seedlings' physiology and biochemistry.
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Affiliation(s)
- Muhammad Qadir
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Anwar Hussain
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan.
| | - Mohib Shah
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Hamayun
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Amjad Iqbal
- Department of Food Science & Technology, Garden Campus, Abdul Wali Khan University, Mardan, Khyber, Pakhtunkhwa, Pakistan
| | - Muhammad Irshad
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Zafar Hayat Khan
- Department of Agronomy, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Badshah Islam
- Department of Horticulture, Garden Campus, Abdul Wali Khan University, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Hosam O Elansary
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Eman A Mahmoud
- Department of Food Industries, Faculty of Agriculture, Damietta University, Damietta, 34511, Egypt.
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, 702-701, Republic of Korea
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EDTA and IAA Ameliorates Phytoextraction Potential and Growth of Sunflower by Mitigating Cu-Induced Morphological and Biochemical Injuries. Life (Basel) 2023; 13:life13030759. [PMID: 36983913 PMCID: PMC10051917 DOI: 10.3390/life13030759] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/08/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
As an essential micronutrient, copper is vital for normal growth and development of plants, however, its accumulation in soil exerts a severe negative impact on the agronomic characteristics and yield of the crop plants. Phytoextraction is a low-cost method for restoring soil fertility and avoiding losses due to heavy metal contamination. We found that using EDTA and IAA together improved sunflower hyperaccumulation capacity. Sunflowers were cultivated under various levels of Cu (0 (control), 25, 50, and 75 mg/kg of soil) and treated with EDTA alone or combined with IAA. The results revealed that the amended treatment significantly enhanced the absorption and accumulation of Cu in the sunflowers. Furthermore, the various doses of Cu significantly reduced the root and shoot growth of sunflowers in a concentration-dependent manner by impairing the chlorophyll content, hormones (indole 3-acetic acid, salicylic acid, and gibberellic acid), flavonoids, phenolics, and antioxidant response. The injurious effect of Cu was reduced by the addition of EDTA alone, and the supplementation of IAA led to a significant restoration of shoot growth (~70%) and root growth (~13%) as compared to the plant treated with Cu alone. Moreover, significantly higher levels of chlorophyll content, GA3, endogenous IAA, and flavonoids were recorded, indicating the effectiveness of the treatment in ameliorating plant health. The results also showed considerable restoration of the catalase and ascorbate peroxidase activities in plants treated with EDTA and IAA. These results are suggestive that application of EDTA and IAA enhances the Cu absorption potential of sunflower and increases its tolerance to copper, which may not only serve as a better technique for phytoextraction of Cu, but also to bring Cu contaminated soil under cultivation.
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Husna, Hussain A, Shah M, Hamayun M, Iqbal A, Qadir M, Alataway A, Dewidar AZ, Elansary HO, Lee IJ. Phytohormones producing rhizobacteria alleviate heavy metals stress in soybean through multilayered response. Microbiol Res 2023; 266:127237. [DOI: 10.1016/j.micres.2022.127237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/26/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
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Tiwari P, Kang S, Bae H. Plant-endophyte associations: Rich yet under-explored sources of novel bioactive molecules and applications. Microbiol Res 2023; 266:127241. [DOI: 10.1016/j.micres.2022.127241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/15/2022] [Accepted: 10/12/2022] [Indexed: 11/05/2022]
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Husna H, Hussain A, Shah M, Hamayun M, Iqbal A, Qadir M, Asim S, Lee IJ. Stemphylium lycopersici and Stemphylium solani improved antioxidant system of soybean under chromate stress. Front Microbiol 2022; 13:1001847. [PMID: 36406387 PMCID: PMC9668875 DOI: 10.3389/fmicb.2022.1001847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Ecologists around the world are giving great attention to the metal pollution of agronomic soil. Recently, several techniques have been employed to remediate heavy metals, but the use of microorganisms is cheap, less time-consuming, and easily available. In the current study, the endophytic strains, Cp1 and Cp2 were isolated from sterilized 1–5 cm long root and leaf segments of Chlorophytum comosum using Hagem media. To get pure colonies, the strains were repeatedly cultured on potato dextrose agar (PDA) media. The strains Cp1 and CP2 were identified as Stemphylium lycopersici and Stemphylium solani based on ITS sequencing and neighbor joining (NJ) method. Both strains showed a growth-promoting potential in soybean seedlings exposed to chromate (Cr) stress. Moreover, S. lycopersici and S. solani improved the Indole-3-acetic acid (IAA), flavonoids, phenolics, protein, and proline contents, whereas, lowered Salicylic acid (SA) production in the seedlings. The selected endophytic fungal strains also promoted the antioxidant system of soybean seedlings through enhanced production of ascorbic acid oxidase (AAO), catalases (CAT), peroxidase, and free radical scavenging enzymes. Both strains bio-transformed the toxic Cr-VI to less toxic Cr-III in the cultural filtrate as well as host plants. In fact, efficient uptake of Cr and its conversion by the isolated endophytic fungal strains could be used as a viable tool to remediate Cr contamination in agricultural soils.
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Affiliation(s)
- Husna Husna
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
- Microbial Safety Division, Agro-Food Safety and Crop Protection Department, National Institute of Agricultural Science, Rural Development Administration, Wanju, South Korea
| | - Anwar Hussain
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
- *Correspondence: Anwar Hussain,
| | - Mohib Shah
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Hamayun
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Amjad Iqbal
- Department of Food Science and Technology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
- Amjad Iqbal,
| | - Muhammad Qadir
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Syed Asim
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
- In-Jung Lee,
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