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Xiong Z, Wang Y, He L, Sheng Q, Sheng X. Combined biochar and wheat-derived endophytic bacteria reduces cadmium uptake in wheat grains in a metal-polluted soil. J Environ Sci (China) 2025; 147:165-178. [PMID: 39003037 DOI: 10.1016/j.jes.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 07/15/2024]
Abstract
In this study, two wheat-derived cadmium (Cd)-immobilizing endophytic Pseudomonas paralactis M14 and Priestia megaterium R27 were evaluated for their effects on wheat tissue Cd uptake under hydroponic conditions. Then, the impacts of the biochar (BC), M14+R27 (MR), and BC+MR treatments on wheat Cd uptake and the mechanisms involved were investigated at the jointing, heading, and mature stages of wheat plants under field-plot conditions. A hydroponic experiment showed that the MR treatment significantly decreased the above-ground tissue Cd content compared with the M14 or R27 treatment. The BC+MR treatment reduced the grain Cd content by 51.5%-67.7% and Cd translocation factor at the mature stage of wheat plants and increased the organic matter-bound Cd content by 31%-75% in the rhizosphere soils compared with the BC or MR treatment. Compared with the BC or MR treatment, the relative abundances of the biomarkers associated with Gemmatimonas, Altererythrobacter, Gammaproteobacteria, Xanthomonadaceae, Phenylobacterium, and Nocardioides in the BC+MR-treated rhizosphere microbiome decreased and negatively correlated with the organic matter-bound Cd contents. In the BC+MR-treated root interior microbiome, the relative abundance of the biomarker belonging to Exiguobacterium increased and negatively correlated with the Cd translocation factor, while the relative abundance of the biomarker belonging to Pseudonocardiaceae decreased and positively correlated with the Cd translocation factor. Our findings suggested that the BC+MR treatment reduced Cd availability and Cd transfer through affecting the abundances of these specific biomarkers in the rhizosphere soil and root interior microbiomes, leading to decreased wheat grain Cd uptake in the contaminated soil.
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Affiliation(s)
- Zhihui Xiong
- College of Life Sciences, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yaping Wang
- College of Life Sciences, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Linyan He
- College of Life Sciences, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Sheng
- College of Life Sciences, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
| | - Xiafang Sheng
- College of Life Sciences, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
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Hassan AHA, Maridueña-Zavala MG, Alsherif EA, Aloufi AS, Korany SM, Aldilami M, Bouqellah NA, Reyad AM, AbdElgawad H. Inoculation with Jeotgalicoccus sp. improves nutritional quality and biological value of Eruca sativa by enhancing amino acid and phenolic metabolism and increasing mineral uptake, unsaturated fatty acids, vitamins, and antioxidants. FRONTIERS IN PLANT SCIENCE 2024; 15:1412426. [PMID: 39354941 PMCID: PMC11442294 DOI: 10.3389/fpls.2024.1412426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 08/09/2024] [Indexed: 10/03/2024]
Abstract
Plant growth-promoting bacteria (PGPB) are considered a promising tool for triggering the synthesis of bioactive compounds in plants and to produce healthy foods. This study aimed to demonstrate the impact of PGPB on the growth, accumulation of primary and secondary metabolites, biological activities, and nutritional qualities of Eruca sativa (arugula), a key leafy vegetable worldwide. To this end, Jeotgalicoccus sp. (JW0823), was isolated and identified by using partial 16S rDNA-based identification and phylogenetic analysis. The findings revealed that JW0823 significantly boosted plant biomass production by about 45% (P<0.05) and enhanced pigment contents by 47.5% to 83.8%. JW0823-treated plants showed remarkable improvements in their proximate composition and vitamin contents, with vitamin E levels increasing by 161.5%. JW0823 induced the accumulation of bioactive metabolites including antioxidants, vitamins, unsaturated fatty acids, and essential amino acids, thereby improving the nutritional qualities of treated plants. An increase in the amounts of amino acids was recorded, with isoleucine showing the highest increase of 270.2%. This was accompanied by increased activity of the key enzymes involved in amino acid biosynthesis, including glutamine synthase, dihydrodipicolinate synthase, cystathionine γ-synthase, and phenylalanine ammonia-lyase enzymes. Consequently, the total antioxidant and antidiabetic activities of the inoculated plants were enhanced. Additionally, JW0823 improved antimicrobial activity against several pathogenic microorganisms. Overall, the JW0823 treatment is a highly promising method for enhancing the health-promoting properties and biological characteristics of E. sativa, making it a valuable tool for improving the quality of this important leafy vegetable.
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Affiliation(s)
| | - Maria Gabriela Maridueña-Zavala
- Centro de Investigaciones Biotecnológicas del Ecuador (CIBE), Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador
| | - Emad A Alsherif
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Abeer S Aloufi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Shereen Magdy Korany
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mohammad Aldilami
- Department of Biology, Faculty of Science, King Abdelaziz University, Jeddah, Saudi Arabia
| | - Nahla A Bouqellah
- Department of Biology, Science College, Taibah University, Madinah, Saudi Arabia
| | - Ahmed M Reyad
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Hamada AbdElgawad
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
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Yan Y, Chang W, Tian P, Chen J, Jiang J, Dai X, Jiang T, Luo F, Yang C. Exploring native arsenic (As)-resistant bacteria: unveiling multifaceted mechanisms for plant growth promotion under As stress. J Appl Microbiol 2024; 135:lxae228. [PMID: 39227171 DOI: 10.1093/jambio/lxae228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 08/26/2024] [Accepted: 09/03/2024] [Indexed: 09/05/2024]
Abstract
AIMS This study explores the plant growth-promoting effect (PGPE) and potential mechanisms of the arsenic (As)-resistant bacterium Flavobacterium sp. A9 (A9 hereafter). METHODS AND RESULTS The influences of A9 on the growth of Arabidopsis thaliana, lettuce, and Brassica napus under As(V) stress were investigated. Additionally, a metabolome analysis was conducted to unravel the underlying mechanisms that facilitate PGPE. Results revealed that A9 significantly enhanced the fresh weight of Arabidopsis seedlings by 62.6%-135.4% under As(V) stress. A9 significantly increased root length (19.4%), phosphorus (25.28%), chlorophyll content (59%), pod number (24.42%), and weight (18.88%), while decreasing As content (48.33%, P ≤ .05) and oxidative stress of Arabidopsis. It also significantly promoted the growth of lettuce and B. napus under As(V) stress. A9 demonstrated the capability to produce ≥31 beneficial substances contributing to plant growth promotion (e.g. gibberellic acid), stress tolerance (e.g. thiamine), and reduced As accumulation (e.g. siderophores). CONCLUSIONS A9 significantly promoted the plant growth under As stress and decreased As accumulation by decreasing oxidative stress and releasing beneficial compounds.
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Affiliation(s)
- Yaoyao Yan
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Wenying Chang
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Peili Tian
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
- Interdisciplinary Research Centre for Agriculture Green Development in Yangtze River Basin, Department of Environmental Sciences and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Jiying Chen
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Jiayin Jiang
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Xianzhu Dai
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Tao Jiang
- Interdisciplinary Research Centre for Agriculture Green Development in Yangtze River Basin, Department of Environmental Sciences and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
| | - Feng Luo
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Caiyun Yang
- Chongqing Key Laboratory for Innovative Application of Genetic Technology, College of Resources and Environment, Southwest University, Chongqing 400715, China
- Interdisciplinary Research Centre for Agriculture Green Development in Yangtze River Basin, Department of Environmental Sciences and Engineering, College of Resources and Environment, Southwest University, Chongqing 400716, China
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Wu ZH, Li F, Wang F, Jin R, Li Y, Li S, Zhou Z, Jia P, Li JT. A synthetic bacterial consortium improved the phytoremediation efficiency of ryegrass on polymetallic contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116691. [PMID: 38981391 DOI: 10.1016/j.ecoenv.2024.116691] [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: 03/27/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/11/2024]
Abstract
Polymetallic contamination of soils caused by mining activities seriously threatens soil fertility, biodiversity and human health. Bioremediation is thought to be of low cost and has minimal environmental risk but its effectiveness needs to be improved. This study aimed to identify the combined effect of plant growth and microbial strains with different functions on the enhancement of bioremediation of polymetallic contaminated soil. The microbiological mechanism of bioremediation was explored by amplicon sequencing and gene prediction. Soil was collected from polymetallic mine wastelands and a non-contaminated site for use in a pot experiment. Remediation efficiency of this method was evaluated by planting ryegrass and applying a mixed bacterial consortium comprising P-solubilizing, N-fixing and SO4-reducing bacteria. The plant-microbe joint remediation method significantly enhanced the above-ground biomass of ryegrass and soil nutrient contents, and at the same time reduced the content of heavy metals in the plant shoots and soil. The application of the composite bacterial inoculum significantly affected the structure of soil bacterial communities and increased the bacterial diversity and complexity, and the stability of co-occurrence networks. The relative abundance of the multifunctional genera to which the strains belonged showed a significant positive correlation with the soil nutrient content. Genera related to carbon (C), nitrogen (N), phosphorus (P), and sulphur (S) cycling and heavy metal resistance showed an up-regulation trend in heavy metal-contaminated soils after the application of the mixed bacterial consortium. Also, bacterial strains with specific functions in the mixed consortium regulated the expression of genes involved in soil nutrient cycling, and thus assisted in making the soil self-sustainable after remediation. These results suggested that the remediation of heavy metal-contaminated soil needs to give priority to the use of multifunctional bacterial agents.
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Affiliation(s)
- Zhuo-Hui Wu
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Fenglin Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Feifan Wang
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Rongzhou Jin
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Yanying Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Shilin Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Zhuang Zhou
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
| | - Pu Jia
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China.
| | - Jin-Tian Li
- Institute of Ecological Science, Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou 510631, PR China
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Hasanuzzaman M, Nowroz F, Raihan MRH, Siddika A, Alam MM, Prasad PVV. Application of biochar and humic acid improves the physiological and biochemical processes of rice (Oryza sativa L.) in conferring plant tolerance to arsenic-induced oxidative stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:1562-1575. [PMID: 38047999 DOI: 10.1007/s11356-023-31119-x] [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: 08/09/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023]
Abstract
Biochar (BC) and humic acid (HA) are well-documented in metal/metalloid detoxification, but their regulatory role in conferring plant oxidative stress under arsenic (As) stress is poorly understood. Therefore, we aimed at investigating the role of BC and HA (0.2 and 0.4 g kg-1 soil) in the detoxification of As (0.25 mM sodium arsenate) toxicity in rice (Oryza sativa L. cv. BRRI dhan75). Arsenic exhibited an increased lipid peroxidation, hydrogen peroxide, electrolyte leakage, and proline content which were 32, 30, 9, and 89% higher compared to control. In addition, the antioxidant defense system of rice consisting of non-enzyme antioxidants (18 and 43% decrease in ascorbate and glutathione content) and enzyme activities (23-50% reduction over control) was decreased as a result of As toxicity. The damaging effect of As was prominent in plant height, biomass acquisition, tiller number, and relative water content. Furthermore, chlorophyll and leaf area also exhibited a decreasing trend due to toxicity. Arsenic exposure also disrupted the glyoxalase system (23 and 33% decrease in glyoxalase I and glyoxalase II activities). However, the application of BC and HA recovered the reactive oxygen species-induced damages in plants, upregulated the effectiveness of the ascorbate-glutathione pool, and accelerated the activities of antioxidant defense and glyoxalase enzymes. These positive roles of BC and HA ultimately resulted in improved plant characteristics with better plant-water status and regulated proline content that conferred As stress tolerance in rice. So, it can be concluded that BC and HA effectively mitigated As-induced physiology and oxidative damage in rice plants. Therefore, BC and HA could be used as potential soil amendments in As-contaminated rice fields.
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Affiliation(s)
- Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-E-Bangla Agricultural University, Sher-E-Bangla Nagar, Dhaka, 1207, Bangladesh.
| | - Farzana Nowroz
- Department of Agronomy, Faculty of Agriculture, Sher-E-Bangla Agricultural University, Sher-E-Bangla Nagar, Dhaka, 1207, Bangladesh
| | - Md Rakib Hossain Raihan
- Laboratory of Bioclimatology, Department of Ecology and Environmental Protection, Poznań University of Life Sciences, Piątkowska 94, 60-649, Poznan, Poland
| | - Ayesha Siddika
- Department of Agronomy, Faculty of Agriculture, Sher-E-Bangla Agricultural University, Sher-E-Bangla Nagar, Dhaka, 1207, Bangladesh
| | - Md Mahabub Alam
- Department of Agronomy, Faculty of Agriculture, Sher-E-Bangla Agricultural University, Sher-E-Bangla Nagar, Dhaka, 1207, Bangladesh
| | - P V Vara Prasad
- Department of Agronomy, Kansas State University, Manhattan, KS, 66506, USA
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Madany MMY, AbdElgawad H, Galilah DA, Khalil AMA, Saleh AM. Elevated CO 2 Can Improve the Tolerance of Avena sativa to Cope with Zirconium Pollution by Enhancing ROS Homeostasis. PLANTS (BASEL, SWITZERLAND) 2023; 12:3792. [PMID: 38005689 PMCID: PMC10674191 DOI: 10.3390/plants12223792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/23/2023] [Accepted: 10/16/2023] [Indexed: 11/26/2023]
Abstract
Zirconium (Zr) is one of the toxic metals that are heavily incorporated into the ecosystem due to intensive human activities. Their accumulation in the ecosystem disrupts the food chain, causing undesired alterations. Despite Zr's phytotoxicity, its impact on plant growth and redox status remains unclear, particularly if combined with elevated CO2 (eCO2). Therefore, a greenhouse pot experiment was conducted to test the hypothesis that eCO2 can alleviate the phytotoxic impact of Zr upon oat (Avena sativa) plants by enhancing their growth and redox homeostasis. A complete randomized block experimental design (CRBD) was applied to test our hypothesis. Generally, contamination with Zr strikingly diminished the biomass and photosynthetic efficiency of oat plants. Accordingly, contamination with Zr triggered remarkable oxidative damage in oat plants, with concomitant alteration in the antioxidant defense system of oat plants. Contrarily, elevated levels of CO2 (eCO2) significantly mitigated the adverse effect of Zr upon both fresh and dry weights as well as the photosynthesis of oat plants. The improved photosynthesis consequently quenched the oxidative damage caused by Zr by reducing the levels of both H2O2 and MDA. Moreover, eCO2 augmented the total antioxidant capacity with the concomitant accumulation of molecular antioxidants (e.g., polyphenols, flavonoids). In addition, eCO2 not only improved the activities of antioxidant enzymes such as peroxidase (POX), superoxide dismutase (SOD) and catalase (CAT) but also boosted the ASC/GSH metabolic pool that plays a pivotal role in regulating redox homeostasis in plant cells. In this regard, our research offers a novel perspective by delving into the previously unexplored realm of the alleviative effects of eCO2. It sheds light on how eCO2 distinctively mitigates oxidative stress induced by Zr, achieving this by orchestrating adjustments to the redox balance within oat plants.
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Affiliation(s)
- Mahmoud M. Y. Madany
- Biology Department, Faculty of Science, Taibah University, Al-Madinah Al-Munawarah 41411, Saudi Arabia
| | - Hamada AbdElgawad
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
| | - Doaa A. Galilah
- Botany Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed M. A. Khalil
- Biology Department, Faculty of Science at Yanbu, Taibah University, King Khalid Rd., Al Amoedi, Yanbu El-Bahr 46423, Saudi Arabia
| | - Ahmed M. Saleh
- Biology Department, Faculty of Science at Yanbu, Taibah University, King Khalid Rd., Al Amoedi, Yanbu El-Bahr 46423, Saudi Arabia
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AbdElgawad H, Negi P, Zinta G, Mohammed AE, Alotaibi MO, Beemster G, Saleh AM, Srivastava AK. Nocardiopsis lucentensis and thiourea co-application mitigates arsenic stress through enhanced antioxidant metabolism and lignin accumulation in rice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 873:162295. [PMID: 36801323 DOI: 10.1016/j.scitotenv.2023.162295] [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: 07/11/2022] [Revised: 01/10/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Arsenic (As) is a group-1 carcinogenic metalloid that threatens global food safety and security, primarily via its phytotoxicity in the staple crop rice. In the present study, ThioAC, the co-application of thiourea (TU, a non-physiological redox regulator) and N. lucentensis (Act, an As-detoxifying actinobacteria), was evaluated as a low-cost approach for alleviating As(III) toxicity in rice. To this end, we phenotyped rice seedlings subjected to 400 mg kg-1 As(III) with/without TU, Act or ThioAC and analyzed their redox status. Under As-stress conditions, ThioAC treatment stabilized photosynthetic performance, as indicated by 78 % higher total chlorophyll accumulation and 81 % higher leaf biomass, compared with those of As-stressed plants. Further, ThioAC improved root lignin levels (2.08-fold) by activating the key enzymes of lignin biosynthesis under As-stress. The extent of reduction in total As under ThioAC (36 %) was significantly higher than TU (26 %) and Act (12 %), compared to those of As-alone treatment, indicating their synergistic interaction. The supplementation of TU and Act activated enzymatic and non-enzymatic antioxidant systems, respectively, with a preference for young (TU) and old (Act) leaves. Additionally, ThioAC activated enzymatic antioxidants, specifically GR (∼3-fold), in a leaf-age specific manner and suppressed ROS-producing enzymes to near-control levels. This coincided with 2-fold higher induction of polyphenols and metallothionins in ThioAC-supplemented plants, resulting in improved antioxidant defence against As-stress. Thus, our findings highlighted ThioAC application as a robust, cost-effective ameliorative strategy, for achieving As-stress mitigation in a sustainable manner.
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Affiliation(s)
- Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, Antwerp, Belgium; Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt.
| | - Pooja Negi
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400094, India.
| | - Gaurav Zinta
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, Himachal Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India.
| | - Afrah E Mohammed
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - Modhi O Alotaibi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - Gerrit Beemster
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, Antwerp, Belgium.
| | - Ahmed M Saleh
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza 12613, Egypt.
| | - Ashish Kumar Srivastava
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400094, India; Homi Bhabha National Institute, Mumbai 400094, India.
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Albqmi M, Selim S, Al-Sanea MM, Alnusaire TS, Almuhayawi MS, Jaouni SKA, Hussein S, Warrad M, Sofy MR, AbdElgawad H. Interactive Effect of Arbuscular Mycorrhizal Fungi (AMF) and Olive Solid Waste on Wheat under Arsenite Toxicity. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12051100. [PMID: 36903959 PMCID: PMC10005190 DOI: 10.3390/plants12051100] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/20/2023] [Accepted: 02/26/2023] [Indexed: 06/12/2023]
Abstract
Heavy metal such as arsenite (AsIII) is a threat worldwide. Thus, to mitigate AsIII toxicity on plants, we investigated the interactive effect of olive solid waste (OSW) and arbuscular mycorrhizal fungi (AMF) on wheat plants under AsIII stress. To this end, wheat seeds were grown in soils treated with OSW (4% w/w), AMF-inoculation, and/or AsIII treated soil (100 mg/kg soil). AMF colonization is reduced by AsIII but to a lesser extent under AsIII + OSW. AMF and OSW interactive effects also improved soil fertility and increased wheat plants' growth, particularly under AsIII stress. The interactions between OSW and AMF treatments reduced AsIII-induced H2O2 accumulation. Less H2O2 production consequently reduced AsIII-related oxidative damages i.e., lipid peroxidation (malondialdehyde, MDA) (58%), compared to As stress. This can be explained by the increase in wheat's antioxidant defense system. OSW and AMF increased total antioxidant content, phenol, flavonoids, and α-tocopherol by approximately 34%, 63%, 118%, 232%, and 93%, respectively, compared to As stress. The combined effect also significantly induced anthocyanins accumulation. The combination of OSW+AMF improved antioxidants enzymes activity, where superoxide dismutase (SOD, catalase (CAT), peroxidase (POX), glutathione reductase (GR), and glutathione peroxidase (GPX) were increased by 98%, 121%, 105%, 129%, and 110.29%, respectively, compared to AsIII stress. This can be explained by induced anthocyanin percussors phenylalanine, cinamic acid and naringenin, and biosynthesic enzymes (phenylalanine aminolayse (PAL) and chalcone synthase (CHS)). Overall, this study suggested the effectiveness of OSW and AMF as a promising approach to mitigate AsIII toxicity on wheat growth, physiology, and biochemistry.
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Affiliation(s)
- Mha Albqmi
- Department of Chemistry, College of Science and Arts, Jouf University, Al Qurayyat 77447, Saudi Arabia
- Olive Research Center, Jouf University, Sakaka 72341, Saudi Arabia
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Mohammad M. Al-Sanea
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
| | - Taghreed S. Alnusaire
- Department of Biology, College of Science, Jouf University, Sakaka 72341, Saudi Arabia
| | - Mohammed S. Almuhayawi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah 21589, Saudi Arabia
| | - Soad K. Al Jaouni
- Department of Hematology and Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Shaimaa Hussein
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia
| | - Mona Warrad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences at Al-Quriat, Jouf University, Al-Qurayyat 77425, Saudi Arabia
| | - Mahmoud R. Sofy
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
| | - Hamada AbdElgawad
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
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9
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Sharma JK, Kumar N, Singh NP, Santal AR. Phytoremediation technologies and their mechanism for removal of heavy metal from contaminated soil: An approach for a sustainable environment. FRONTIERS IN PLANT SCIENCE 2023; 14:1076876. [PMID: 36778693 PMCID: PMC9911669 DOI: 10.3389/fpls.2023.1076876] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/06/2023] [Indexed: 05/14/2023]
Abstract
The contamination of soils with heavy metals and its associated hazardous effects are a thrust area of today's research. Rapid industrialization, emissions from automobiles, agricultural inputs, improper disposal of waste, etc., are the major causes of soil contamination with heavy metals. These contaminants not only contaminate soil but also groundwater, reducing agricultural land and hence food quality. These contaminants enter the food chain and have a severe effect on human health. It is important to remove these contaminants from the soil. Various economic and ecological strategies are required to restore the soils contaminated with heavy metals. Phytoremediation is an emerging technology that is non-invasive, cost-effective, and aesthetically pleasing. Many metal-binding proteins (MBPs) of the plants are significantly involved in the phytoremediation of heavy metals; the MBPs include metallothioneins; phytochelatins; metalloenzymes; metal-activated enzymes; and many metal storage proteins, carrier proteins, and channel proteins. Plants are genetically modified to enhance their phytoremediation capacity. In Arabidopsis, the expression of the mercuric ion-binding protein in Bacillus megaterium improves the metal accumulation capacity. The phytoremediation efficiency of plants is also enhanced when assisted with microorganisms, biochar, and/or chemicals. Removing heavy metals from agricultural land without challenging food security is almost impossible. As a result, crop selections with the ability to sequester heavy metals and provide food security are in high demand. This paper summarizes the role of plant proteins and plant-microbe interaction in remediating soils contaminated with heavy metals. Biotechnological approaches or genetic engineering can also be used to tackle the problem of heavy metal contamination.
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Affiliation(s)
| | - Nitish Kumar
- Department of Biotechnology, Central University of South Bihar, Gaya, Bihar, India
| | - N. P. Singh
- Centre for Biotechnology, M. D. University, Rohtak, India
- *Correspondence: Anita Rani Santal, ; N. P. Singh,
| | - Anita Rani Santal
- Department of Microbiology, M. D. University, Rohtak, India
- *Correspondence: Anita Rani Santal, ; N. P. Singh,
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Yaghoubi Khanghahi M, AbdElgawad H, Verbruggen E, Korany SM, Alsherif EA, Beemster GTS, Crecchio C. Biofertilisation with a consortium of growth-promoting bacterial strains improves the nutritional status of wheat grain under control, drought, and salinity stress conditions. PHYSIOLOGIA PLANTARUM 2022; 174:e13800. [PMID: 36250979 DOI: 10.1111/ppl.13800] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/22/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
We investigated the effect of plant growth-promoting bacterial strains (PGPB) as biofertilisers on the grain metabolic composition of durum wheat (Triticum durum Desf.). To this aim, we conducted a greenhouse experiment where we grew durum wheat plants supplied with a biofertiliser consortium of four PGPB and/or chemical fertiliser (containing nitrogen, phosphorus, potassium, and zinc), under non-stress, drought (at 40% field capacity), or salinity (150 mM NaCl) conditions. Nutrient accumulations in the grain were increased in plants treated with the biofertiliser consortium, alone or with a half dose of chemical fertilisers, compared to those in no fertilisation treatment. A clear benefit of biofertiliser application in the improvement of protein, soluble sugar, starch, and lipid contents in the grains was observed in comparison with untreated controls, especially under stress conditions. The most striking observation was the absence of significant differences between biofertiliser and chemical fertiliser treatments for most parameters. Moreover, the overall response to the biofertiliser consortium was accompanied by greater changes in amino acids, organic acids, and fatty acid profiles. In conclusion, PGPB improved the metabolic and nutrient status of durum wheat grains to a similar extent as chemical fertilisers, particularly under stress conditions, demonstrating the value of PGPB as a sustainable fertilisation treatment.
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Affiliation(s)
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, Antwerp, Belgium
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Erik Verbruggen
- Plants and Ecosystems Research Group, Department of Biology, University of Antwerp, Universiteitsplein 1C, Wilrijk, Belgium
| | - Shereen Magdy Korany
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Emad A Alsherif
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
- Biology Department, College of Science and Arts at Khulis, University of Jeddah, Jeddah, Saudi Arabia
| | - Gerrit T S Beemster
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Carmine Crecchio
- Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Bari, Italy
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Rahman SU, Nawaz MF, Gul S, Yasin G, Hussain B, Li Y, Cheng H. State-of-the-art OMICS strategies against toxic effects of heavy metals in plants: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 242:113952. [PMID: 35999767 DOI: 10.1016/j.ecoenv.2022.113952] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution of heavy metals (HMs), mainly due to anthropogenic activities, has received growing attention in recent decades. HMs, especially the non-essential carcinogenic ones, including chromium (Cr), cadmium (Cd), mercury (Hg), aluminum (Al), lead (Pb), and arsenic (As), have appeared as the most significant air, water, and soil pollutants, which adversely affect the quantity, quality, and security of plant-based food all over the world. Plants exposed to HMs could experience significant decline in growth and yield. To avoid or tolerate the toxic effects of HMs, plants have developed complicated defense mechanisms, including absorption and accumulation of HMs in cell organelles, immobilization by forming complexes with organic chelates, extraction by using numerous transporters, ion channels, signalling cascades, and transcription elements, among others. OMICS strategies have developed significantly to understand the mechanisms of plant transcriptomics, genomics, proteomics, metabolomics, and ionomics to counter HM-mediated stress stimuli. These strategies have been considered to be reliable and feasible for investigating the roles of genomics (genomes), transcriptomic (coding), mRNA transcripts (non-coding), metabolomics (metabolites), and ionomics (metal ions) to enhance stress resistance or tolerance in plants. The recent developments in the mechanistic understandings of the HMs-plant interaction in terms of their absorption, translocation, and toxicity invasions at the molecular and cellular levels, as well as plants' response and adaptation strategies against these stressors, are summarized in the present review. Transcriptomics, genomics, metabolomics, proteomics, and ionomics for plants against HMs toxicities are reviewed, while challenges and future recommendations are also discussed.
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Affiliation(s)
- Shafeeq Ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China; MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Muhammad Farrakh Nawaz
- Department of Forestry and Range Management, University of Agricultureó, Faisalabad, Pakistan
| | - Sadaf Gul
- Department of Botany, University of Karachi, Karachi, Pakistan
| | - Ghulam Yasin
- Department of Forestry and Range Management, Bahauddin Zakariya University Multan, Pakistan
| | - Babar Hussain
- Department of Plant Science Karakoram International University (KIU), Gilgit 15100, Gilgit-Baltistan, Pakistan
| | - Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China; Dongguan Key Laboratory of Water Pollution and Ecological Safety Regulation, Dongguan, Guangdong 523808, China.
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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Cloning and functional characterization of arsenite oxidase (aoxB) gene associated with arsenic transformation in Pseudomonas sp. strain AK9. Gene X 2022; 850:146926. [DOI: 10.1016/j.gene.2022.146926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/22/2022] [Accepted: 09/26/2022] [Indexed: 11/22/2022] Open
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Silambarasan S, Logeswari P, Vangnai AS, Kamaraj B, Cornejo P. Plant growth-promoting actinobacterial inoculant assisted phytoremediation increases cadmium uptake in Sorghum bicolor under drought and heat stresses. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 307:119489. [PMID: 35594999 DOI: 10.1016/j.envpol.2022.119489] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/24/2022] [Accepted: 05/14/2022] [Indexed: 05/22/2023]
Abstract
In this study, two proficient Cadmium (Cd) resistant and plant growth-promoting actinobacterial strains were isolated from metal-polluted soils and identified as Streptomyces sp. strain RA04 and Nocardiopsis sp. strain RA07. Multiple abiotic stress tolerances were found in these two actinobacterial strains, including Cd stress (CdS), drought stress (DS) and high-temperature stress (HTS). Both actinobacterial strains exhibited multifarious plant growth-promoting (PGP) traits such as phosphate solubilization, and production of indole-3-acetic acid, siderophores and 1-aminocyclopropane-1-carboxylate deaminase under CdS, DS and HTS conditions. The inoculation of strains RA04 and RA07 significantly increased Sorghum bicolor growth and photosynthetic pigments under CdS, DS, HTS, CdS + DS and CdS + HTS conditions as compared to their respective uninoculated plants. The actinobacterial inoculants reduced malondialdehyde concentration and enhanced antioxidant enzymes in plants cultivated under various abiotic stress conditions, indicating that actinobacterial inoculants reduced oxidative damage. Furthermore, strains RA04 and RA07 enhanced the accumulation of Cd in plant tissues and the translocation of Cd from root to shoot under CdS, CdS + DS and CdS + HTS treatments as compared to their respective uninoculated plants. These findings suggest that RA04 and RA07 strains could be effective bio-inoculants to accelerate phytoremediation of Cd polluted soil even in DS and HTS conditions.
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Affiliation(s)
- Sivagnanam Silambarasan
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile.
| | - Peter Logeswari
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile
| | - Alisa S Vangnai
- Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence in Biocatalyst and Sustainable Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10300, Thailand.
| | - Balu Kamaraj
- Department of Neuroscience Technology, College of Applied Medical Science in Jubail, Imam Abdulrahman Bin Faisal University, Jubail, Saudi Arabia
| | - Pablo Cornejo
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental, CIMYSA, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile; Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Avenida Francisco Salazar 01145, Temuco, Chile.
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Wang Q, Wang L, Jiang Y, Liu Y, Zhang W, Zhang J, Olayemi Macauley AL. Morphology-engineered carbon quantum dots embedded on octahedral CdIn 2S 4 for enhanced photocatalytic activity towards pollutant degradation and hydrogen evolution. ENVIRONMENTAL RESEARCH 2022; 209:112800. [PMID: 35085566 DOI: 10.1016/j.envres.2022.112800] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
In recent years, carbon quantum dots (CQDs) and CdIn2S4 have considered as the representatives of the most potential photocatalysts applied in the field of photocatalysis for efficiently solving energy shortage and environmental pollution. In this work, a novel CQDs hybridized CdIn2S4 (CQDs/CIS) heterostructure with 2D nanosheet/3D nanooctahedra morphology was successfully fabricated by a simple in-situ solvothermal method. Most interestingly, the morphology of hybrid gradually evolved from 3D octahedron to 2D nanosheet with the increase of CQDs. This unique 2D/3D structure and synergistic effect between CQDs and CdIn2S4 increased the multi-dimensional active reaction sites and enhanced the quantum yield and the separation efficiency of photogenerated electron pairs. Therefore, CQDs/CIS hybrids showed excellent photocatalytic activities of H2 generation, RhB and TCH degradation. Especially, CQDs/CIS-3 heterostructure presented the highest photocatalytic efficiency and its hydrogen generation activity (956.79 μmol g-1 h-1) was 7.57-fold improvement by contrast with pure CdIn2S4 (126.35 μmol g-1 h-1). Moreover, RhB and TCH degradation rate constants of CQDs/CIS-3 were about 8.14 and 2.32 times higher than those of CdIn2S4, respectively. Furthermore, the effect of CQDs on the evolution of heterostructure morphology and photocatalytic mechanism were also proposed. This research work would offer useful enlightenment for elucidating the affect of CQDs on the morphology evolution and construction of CQDs-based hybrid with excellent performances for H2 production and pollutant removal.
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Affiliation(s)
- Qiyuan Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Linghui Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yinhua Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Wenli Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Jianming Zhang
- Institute of Quantum and Sustainable Technology (IQST), School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
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15
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Genus Nocardiopsis: A Prolific Producer of Natural Products. Mar Drugs 2022; 20:md20060374. [PMID: 35736177 PMCID: PMC9231205 DOI: 10.3390/md20060374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/01/2023] Open
Abstract
Actinomycetes are currently one of the major sources of bioactive secondary metabolites used for medicine development. Accumulating evidence has shown that Nocardiopsis, a key class of actinomycetes, has the ability to produce novel bioactive natural products. This review covers the sources, distribution, bioactivities, biosynthesis, and structural characteristics of compounds isolated from Nocardiopsis in the period between March 2018 and 2021. Our results reveal that 67% of Nocardiopsis-derived natural products are reported for the first time, and 73% of them are isolated from marine Nocardiopsis. The chemical structures of the Nocardiopsis-derived compounds have diverse skeletons, concentrating on the categories of polyketides, peptides, terphenyls, and alkaloids. Almost 50% of the natural products isolated from Nocardiopsis have been discovered to display various bioactivities. These results fully demonstrate the great potential of the genus Nocardiopsis to produce novel bioactive secondary metabolites that may serve as a structural foundation for the development of novel drugs.
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16
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Shabbaj II, Madany MMY, Balkhyour MA, Tammar A, AbdElgawad H. CO 2 Enrichment Differentially Upregulated Sugar, Proline, and Polyamine Metabolism in Young and Old Leaves of Wheat and Sorghum to Mitigate Indium Oxide Nanoparticles Toxicity. FRONTIERS IN PLANT SCIENCE 2022; 13:843771. [PMID: 35592559 PMCID: PMC9112856 DOI: 10.3389/fpls.2022.843771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/14/2022] [Indexed: 06/15/2023]
Abstract
Soil contamination with indium oxide nanoparticles (In2O3-NPs) is a challenge for plant growth and productivity. Despite In2O3-NPs toxicity, their effects on plant growth and metabolism are largely unknown, particularly under future climate CO2 (eCO2). Therefore, the In2O3-NPs toxicity and stress mitigating impact of eCO2 in the young and old leaves of C3 (wheat) and C4 (sorghum) plants were investigated. Overall, In2O3-NPs significantly retard the biomass and photosynthetic machinery of all tested crops, particularly the young leaves of C3 plants. Consequently, In2O3-NPs altered C and N metabolism in C3 and C4 plants. On the other hand, eCO2 contrarily alleviated the hazardous effects of In2O3-NPs on growth and photosynthesis, especially in the young leaves of C4 plants. Increased photosynthesis consequently enhanced the soluble sugars' accumulation and metabolism (e.g., sucrose P synthase, cytosolic, and vacuolar invertase) in all stressed plants, but to a greater extent in C4 young leaves. High sugar availability also induced TCA organic and fatty acids' accumulation. This also provided a route for amino acids and polyamines biosynthesis, where a clear increase in proline biosynthetic enzymes [e.g., pyrroline-5-carboxylate synthetase (P5CS), ornithine aminotransferase (OAT), Pyrroline-5-carboxylate reductase (P5CR), pyrroline-5-carboxylate dehydrogenase (P5CDH), and proline dehydrogenase (PRODH)] and polyamine metabolic enzymes (e.g., spermine and spermidine synthases, ornithine decarboxylase, and adenosyl methionine decarboxylase) were mainly recorded in C4 young leaves. The observed increases in these metabolites involved in osmo- and redox-regulation to reduce In2O3-NPs induced oxidative damage. Overall, our study, for the first time, shed light on how eCO2 differentially mitigated In2O3-NPs stress in old and young leaves of different species groups under the threat of In2O3-NPs contamination.
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Affiliation(s)
- Ibrahim I. Shabbaj
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mahmoud M. Y. Madany
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
- Department of Biology, College of Science, Taibah University, Medina, Saudi Arabia
| | - Mansour A. Balkhyour
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdurazag Tammar
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
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17
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Zulfiqar F, Ashraf M. Antioxidants as modulators of arsenic-induced oxidative stress tolerance in plants: An overview. JOURNAL OF HAZARDOUS MATERIALS 2022; 427:127891. [PMID: 34848065 DOI: 10.1016/j.jhazmat.2021.127891] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 11/14/2021] [Accepted: 11/21/2021] [Indexed: 05/24/2023]
Abstract
Arsenic (As) is a highly toxic contaminant in the environment. Although both inorganic and organic types of arsenic exist in the environment, the most common inorganic forms of As that adversely affect plants are arsenite (As III) and arsenate (As V). Despite no evidence for As being essential for plant growth, exposure of roots to this element can cause its uptake primarily via transporters responsible for the transport of essential mineral nutrients. Arsenic exposure even at low concentrations disturbs the plant normal functioning via excessive generation of reactive oxygen species, a condition known as oxidative stress leading to an imbalance in the redox system of the plant. This is associated with considerable damage to the cell components thereby impairing normal cellular functions and activation of several cell survival and cell death pathways. To counteract this oxidative disorder, plants possess natural defense mechanisms such as chemical species and enzymatic antioxidants. This review considers how different types of antioxidants participate in the oxidative defense mechanism to alleviate As stress in plants. Since the underlying phenomena of oxidative stress tolerance are not yet fully elucidated, the potential for "Omics" technologies to uncover molecular mechanisms are discussed. Various strategies to improve As-induced oxidative tolerance in plants such as exogenous supplementation of effective growth regulators, protectant chemicals, transgenic approaches, and genome editing are also discussed thoroughly in this review.
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Affiliation(s)
- Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.
| | - Muhammad Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
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18
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Selim S, AbdElgawad H, Reyad AM, Alowaiesh BF, Hagagy N, Al-Sanea MM, Alsharari SS, Madany MMY. Potential use of a novel actinobacterial species to ameliorate tungsten nanoparticles induced oxidative damage in cereal crops. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 171:226-239. [PMID: 34973889 DOI: 10.1016/j.plaphy.2021.11.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/25/2021] [Accepted: 11/28/2021] [Indexed: 06/14/2023]
Abstract
Tungsten nanoparticles (WNPs) could induce hazard impact on plant growth and development; however, no study investigated their phytotoxicity. On the other hand, plant growth-promoting bacteria (PGPB) can effectively reduce WNPs toxicity. To this end, Nocardiopsis sp. was isolated and employed to mitigate the phytotoxic effect of WNPs on three crops (wheat, barley, and oat). Soil contamination with WPNs induced the W accumulation in all tested crops, inhibited both growth and photosynthesis and induced oxidative damage. On the other hand, pre-inoculation with Nocardiopsis sp. significantly reduced W level in treated plants. Concomitantly, Nocardiopsis sp. strikingly mitigated the inhibitory effect of WNPs by augmenting both growth and reactive oxygen species (ROS) homeostasis. To cope with heavy metal stress, all the tested species orchestrated their antioxidant homeostasis through enhancing the production of antioxidant metabolites (e.g., phenolics, flavonoids and tocopherols) and elevated the activities of ROS-scavenging enzymes (e.g., APX, POX, CAT, as well as the enzymes involved in AsA/GSH cycle). Moreover, pre-inoculation with Nocardiopsis sp. improved the detoxification metabolism by enhancing the accumulation of phytochelatins (PCs), metallothionein (MTC) and glutathione-S-transferase (GST) in grasses grown in WNPs-contaminated soils. Overall, restrained ROS homeostasis and improved WNPs detoxification systems were the bases underlie the WNPs stress mitigating impact of Nocardiopsis sp treatment.
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Affiliation(s)
- Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, 72341, Saudi Arabia.
| | - Hamada AbdElgawad
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Ahmed Mohamed Reyad
- Biology Department, Faculty of Science, Jazan University, Jazan, Saudi Arabia; Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Bassam F Alowaiesh
- Biology Department, College of Science, Jouf University, Sakaka, P.O. Box 72341, Saudi Arabia
| | - Nashwa Hagagy
- Department of Biology, College of Science and Arts at Khulis, University of Jeddah, Jeddah, Saudi Arabia; Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Mohammad M Al-Sanea
- Pharmaceutical Chemistry Department, College of Pharmacy, Jouf University, Sakaka, 72341, Aljouf Province, Saudi Arabia
| | - Salam S Alsharari
- Biology Department, College of Science, Jouf University, Sakaka, P.O. Box 72341, Saudi Arabia
| | - Mahmoud M Y Madany
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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Nazir MM, Li Q, Noman M, Ulhassan Z, Ali S, Ahmed T, Zeng F, Zhang G. Calcium Oxide Nanoparticles Have the Role of Alleviating Arsenic Toxicity of Barley. FRONTIERS IN PLANT SCIENCE 2022; 13:843795. [PMID: 35360316 PMCID: PMC8963479 DOI: 10.3389/fpls.2022.843795] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/14/2022] [Indexed: 05/11/2023]
Abstract
Arsenic (As) contamination in agricultural soils has become a great threat to the sustainable development of agriculture and food safety. Although a lot of approaches have been proposed for dealing with soil As contamination, they are not practical in crop production due to high cost, time-taking, or operational complexity. The rapid development of nanotechnology appears to provide a novel solution to soil As contamination. This study investigated the roles of calcium oxide nanoparticles (CaO NPs) in alleviating As toxicity in two barley genotypes (LJZ and Pu-9) differing in As tolerance. The exposure of barley seedlings to As stress showed a significant reduction in plant growth, calcium and chlorophyll content (SPAD value), fluorescence efficiency (Fv/m), and a dramatic increase in the contents of reactive oxygen species (ROS), malondialdehyde (MDA) and As, with LJZ being more affected than Pu-9. The exogenous supply of CaO NPs notably alleviated the toxic effect caused by As in the two barley genotypes. Moreover, the expression of As transporter genes, that is, HvPHT1;1, HvPHT1;3, HvPHT1;4 and HvPHT1;6, was dramatically enhanced when barley seedlings were exposed to As stress and significantly reduced in the treatment of CaO NPs addition. It may be concluded that the roles of CaO NPs in alleviating As toxicity could be attributed to its enhancement of Ca uptake, ROS scavenging ability, and reduction of As uptake and transportation from roots to shoots.
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Affiliation(s)
- Muhammad Mudassir Nazir
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Qi Li
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Muhammad Noman
- Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Zaid Ulhassan
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung, Taiwan
| | - Temoor Ahmed
- Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Fanrong Zeng
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- School of Agriculture, Yangtze University, Jinzhou, China
| | - Guoping Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
- *Correspondence: Guoping Zhang,
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El-Shafey NM, Marzouk MA, Yasser MM, Shaban SA, Beemster GT, AbdElgawad H. Harnessing Endophytic Fungi for Enhancing Growth, Tolerance and Quality of Rose-Scented Geranium ( Pelargonium graveolens (L'Hér) Thunb.) Plants under Cadmium Stress: A Biochemical Study. J Fungi (Basel) 2021; 7:1039. [PMID: 34947021 PMCID: PMC8705862 DOI: 10.3390/jof7121039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/26/2021] [Accepted: 11/28/2021] [Indexed: 01/24/2023] Open
Abstract
Heavy metal contamination in soil is increasing rapidly due to increasing anthropogenic activities. Despite the importance of rose-scented geranium as a medicinal plant, little attention was paid to enhancing its productivity in heavy metal-polluted soil. In this regard, endophytes improve plant resistance to heavy metal toxicity and enhance its tissue quality. Here, the impact of the three endophytic fungi Talaromyces versatilis (E6651), Emericella nidulans (E6658), and Aspergillus niger (E6657) on geranium growth, tolerance, and tissue quality under cadmium (Cd) stress was investigated. In contrast to E. nidulans, T. versatilis and A. niger enhanced geranium growth and the stimulatory effect was more pronounced under Cd-stress. The three endophytes significantly alleviated Cd accumulation and increased mineral content in geranium leaves. In addition, endophytic fungi successfully alleviated Cd-induced membrane damage and reinforced the antioxidant defenses in geranium leaves. Inoculation with endophytes stimulated all the antioxidant enzymes under Cd-stress, and the response was more obvious in the case of T. versatilis and A. niger. To reduce the toxicity of tissue-Cd levels, T. versatilis and A. niger upregulated the detoxification mechanisms; glutathione-S-transferase, phytochelatin, and metallothionein levels. Moreover, endophytic fungi improved the medicinal value and quality of geranium by increasing total antioxidant capacity (TAC), phenolic compound biosynthesis (phenylalanine ammonia-lyase), and vitamin content as well as the quantity and quality of essential oil, particularly under Cd-stress conditions. The variation in the mechanisms modulated by the different endophytic fungi was supported by Principal Component Analysis (PCA). Overall, this study provided fundamental insights into endophytes' impact as a feasible strategy to mitigate the phytotoxicity hazards of Cd-stress in geranium and enhance its quality, based on the growth and biochemical investigations.
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Affiliation(s)
- Nadia Mohamed El-Shafey
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt; (M.A.M.); (M.M.Y.); (S.A.S.); (H.A.)
| | - Marym A. Marzouk
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt; (M.A.M.); (M.M.Y.); (S.A.S.); (H.A.)
| | - Manal M. Yasser
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt; (M.A.M.); (M.M.Y.); (S.A.S.); (H.A.)
| | - Salwa A. Shaban
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt; (M.A.M.); (M.M.Y.); (S.A.S.); (H.A.)
| | - Gerrit T.S. Beemster
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, 2020 Antwerp, Belgium;
| | - Hamada AbdElgawad
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt; (M.A.M.); (M.M.Y.); (S.A.S.); (H.A.)
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Selim S, AbdElgawad H, Alsharari SS, Atif M, Warrad M, Hagagy N, Madany MMY, Abuelsoud W. Soil enrichment with actinomycete mitigates the toxicity of arsenic oxide nanoparticles on wheat and maize growth and metabolism. PHYSIOLOGIA PLANTARUM 2021; 173:978-992. [PMID: 34237152 DOI: 10.1111/ppl.13496] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/09/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
The use of plant growth-promoting bacteria (PGPB) to enhance plant growth and protection against heavy metal toxicity has been extensively studied. However, its potentiality to reduce arsenate toxicity, a threat to plant growth and metabolism, has been hardly investigated. Moreover, the toxic effect of arsenic oxide nanoparticles (As-NPs) on plants and possible mechanisms for its alleviation has not yet been explored. In this study, the impact of the bioactive actinomycete Streptomyces spp. on the growth, physiology and stress-related metabolites, such as sugars and proline, on As-NPs-stressed wheat and maize plants was investigated. Soil amendment with arsenic oxide nanoparticles (As-NPs) induced the uptake and accumulation of As in the plants of both species, resulting in reduced growth and photosynthesis, but less marked in maize than in wheat plants. Under As-NPs-free conditions, Streptomyces spp. treatment markedly improved growth and photosynthesis in wheat only. The application of Streptomyces spp. reduced As accumulation, recovered the As-NPs-induced growth, photosynthesis inhibition, and oxidative damage in plants of both species. Wheat plants specifically accumulated soluble sugars, while both species accumulated proline. Under As-NPs stress, the ornithine pathway of proline biosynthesis was more important in maize than in wheat plants, while the glutamine pathway was dominant in wheat ones. The addition of Streptomyces spp. further induced the accumulation of proline and starch in both plant species. Overall, despite a different response to Streptomyces spp. under nontoxic conditions, the amendment of as-contaminated soil with Streptomyces spp. induced similar metabolic responses in the two tested species, which trigger stress recovery.
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Affiliation(s)
- Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Hamada AbdElgawad
- Faculty of Science, Department of Botany and Microbiology, Beni-Suef University, Beni-Suef, Egypt
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Salam S Alsharari
- Department of Biology, Jouf University, College of Science, Sakaka, Saudi Arabia
| | - Muhammad Atif
- Department of Clinical Laboratory Sciences, Jouf University, College of Applied Medical Sciences, Sakaka, Saudi Arabia
| | - Mona Warrad
- Department of Clinical Laboratory Sciences, Jouf University, College of Applied Medical Sciences at Al-Quriat, Al-Quriat, Saudi Arabia
| | - Nashwa Hagagy
- Department of Biology, University of Jeddah, College of Science and Arts at Khulis, Jeddah, Saudi Arabia
- Faculty of Science, Department of Botany, Suez Canal University, Ismailia, Egypt
| | - Mahmoud M Y Madany
- Faculty of Science, Department of Botany and Microbiology, Cairo University, Giza, Egypt
- Department of Biology, Taibah University, College of Science, Al-Madinah Al-Munawarah, Saudi Arabia
| | - Walid Abuelsoud
- Faculty of Science, Department of Botany and Microbiology, Cairo University, Giza, Egypt
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