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Ma J, Li Y, Zhou H, Qi L, Zhang Z, Zheng Y, Yu Z, Muhammad Z, Yang X, Xie Y, Chen Q, Zou P, Ma S, Li Y, Jing C. Chitooligosaccharides and Arbuscular Mycorrhizal fungi alleviate the damage by Phytophthora nicotianae to tobacco seedlings by inducing changes in rhizosphere microecology. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108986. [PMID: 39106769 DOI: 10.1016/j.plaphy.2024.108986] [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: 04/15/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/09/2024]
Abstract
Arbuscular mycorrhizal fungi (AMF) and Chitooligosaccharide (COS) can increase the resistance of plants to disease. COS can also promote the symbiosis between AMF and plants. However, the effects of AMF & COS combined application on the rhizosphere soil microbial community of tobacco and the improvement of tobacco's resistance to black shank disease are poorly understood.·We treated tobacco with AMF, COS, and combined application of AMF & COS (AC), respectively. Then studied the incidence, physio-biochemical changes, root exudates, and soil microbial diversity of tobacco seedling that was inoculated with Phytophthora nicotianae. The antioxidant enzyme activity and root vigor of tobacco showed a regular of AC > AMF > COS > CK, while the severity of tobacco disease showed the opposite regular. AMF and COS enhance the resistance to black shank disease by enhancing root vigor, and antioxidant capacity, and inducing changes in the rhizosphere microecology of tobacco. We have identified key root exudates and critical soil microorganisms that can inhibit the growth of P. nicotianae. The presence of caprylic acid in root exudates and Bacillus (WdhR-2) in rhizosphere soil microorganisms is the key factor that inhibits P. nicotianae growth. AC can significantly increase the content of caprylic acid in tobacco root exudates compared to AMF and COS. Both AMF and COS can significantly increase the abundance of Bacillus in tobacco rhizosphere soil, but the abundance of Bacillus in AC is significantly higher than that in AMF and COS. This indicates that the combined application of AMF and COS is more effective than their individual use. These findings suggest that exogenous stimuli can induce changes in plant root exudates, regulate plant rhizosphere microbial community, and then inhibit the growth of pathogens, thereby improving plant resistance to diseases.
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Affiliation(s)
- Junqing Ma
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Yang Li
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Heng Zhou
- Yunnan Kunming Tobacco Co., Ltd, Kunming, 650400, China
| | - Lixin Qi
- Weifang Inspection and Testing Center, Weifang, 261399, China
| | - Zhifan Zhang
- Zunyi Branch, Guizhou Tobacco Company, Zunyi, 563000, China
| | - Yanfen Zheng
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Zheyan Yu
- College of Agronomy, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zeeshan Muhammad
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou, 510642, China
| | - Xia Yang
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Yi Xie
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Qianru Chen
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Ping Zou
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Siqi Ma
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Yiqiang Li
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China.
| | - Changliang Jing
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao, 266101, China.
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Zhang X, Zou G, Chu H, Shen Z, Zhang Y, Abbas MHH, Albogami BZ, Zhou L, Abdelhafez AA. Biochar applications for treating potentially toxic elements (PTEs) contaminated soils and water: a review. Front Bioeng Biotechnol 2023; 11:1258483. [PMID: 37662433 PMCID: PMC10472142 DOI: 10.3389/fbioe.2023.1258483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Environmental pollution with potentially toxic elements (PTEs) has become one of the critical and pressing issues worldwide. Although these pollutants occur naturally in the environment, their concentrations are continuously increasing, probably as a consequence of anthropic activities. They are very toxic even at very low concentrations and hence cause undesirable ecological impacts. Thus, the cleanup of polluted soils and water has become an obligation to ensure the safe handling of the available natural resources. Several remediation technologies can be followed to attain successful remediation, i.e., chemical, physical, and biological procedures; yet many of these techniques are expensive and/or may have negative impacts on the surroundings. Recycling agricultural wastes still represents the most promising economical, safe, and successful approach to achieving a healthy and sustainable environment. Briefly, biochar acts as an efficient biosorbent for many PTEs in soils and waters. Furthermore, biochar can considerably reduce concentrations of herbicides in solutions. This review article explains the main reasons for the increasing levels of potentially toxic elements in the environment and their negative impacts on the ecosystem. Moreover, it briefly describes the advantages and disadvantages of using conventional methods for soil and water remediation then clarifies the reasons for using biochar in the clean-up practice of polluted soils and waters, either solely or in combination with other methods such as phytoremediation and soil washing technologies to attain more efficient remediation protocols for the removal of some PTEs, e.g., Cr and As from soils and water.
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Affiliation(s)
- Xu Zhang
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
- Shanghai Engineering Research Centre of Low-Carbon Agriculture, Shanghai, China
| | - Guoyan Zou
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Engineering Research Centre of Low-Carbon Agriculture, Shanghai, China
| | - Huaqiang Chu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Zheng Shen
- National Engineering Research Center of Protected Agriculture, Shanghai Engineering Research Center of Protected Agriculture, Tongji University, Shanghai, China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Mohamed H. H. Abbas
- Soils and Water Department, Faculty of Agriculture, Soils and Water Department, Benha University, Benha, Egypt
| | - Bader Z. Albogami
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran, Saudi Arabia
| | - Li Zhou
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Shanghai Engineering Research Centre of Low-Carbon Agriculture, Shanghai, China
| | - Ahmed A. Abdelhafez
- Soils and Water Department, Faculty of Agriculture, New Valley University, New Valley, Egypt
- National Committee of Soil Science, Academy of Scientific Research and Technology, Cairo, Egypt
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Mohamed I, Bassouny MA, Abbas MHH, Ming Z, Cougui C, Fahad S, Saud S, Khan Khattak JZ, Ali S, M S Salem H, Azab A, Ali M. Rice straw application with different water regimes stimulate enzymes activity and improve aggregates and their organic carbon contents in a paddy soil. CHEMOSPHERE 2021; 274:129971. [PMID: 33979915 DOI: 10.1016/j.chemosphere.2021.129971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/07/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Soil organic carbon plays considerable roles in binding soil particles together forming aggregates. Carbon (C) incorporated within these aggregates is thought to be microbially processed; thus, investigating changes in microbial activities i.e. dehydrogenase, urease, catalase and phosphatase enzymes may explain, to some extent, the dynamics and probably mechanisms responsible of formation of these aggregates. Since, soil water content (SWC) may take part in stimulating/lessening activities of organic matter decomposers; thus, this study aimed at investigating the effects of rice straw as a source of organic C in combination with variable SWC on bioaccumulation of C within different soil aggregate size fractions (2000-250, 250-53 and < 53 μm) and hence formation of these aggregates. To achieve these objectives, a pot experiment was conducted for 90 days, including five water levels i.e. maintaining a water head 1 cm above the soil surface (W1), 100% of the saturation percentage, SP (W2), 80% of SP (W3), 65% of SP (W4) and 50% of SP (W5), beside of two rates of applied rice straw i.e. 0 and 15 g kg-1 (w/w). Results revealed that application of rice straw at a rate of 15 g kg-1 increased the activities of dehydrogenase, urease, neutral phosphatase and catalase enzymes within the first 60 days after application; thereafter, activities of the first three enzymes decreased considerably. Likewise, formation of soil macro- (2000-250 μm) and micro-aggregates (250-53 μm) increased by the end of the experimental period. The highest concentrations of soil carbon were incorporated within soil macro-aggregate, whereas the least C content was found within the "silt + clay" fraction. Increasing SWC resulted in significant reductions in activities of the aforementioned enzymes and consequent reductions occurred in soil aggregation. Carbon content within aggregates sized <250 μm were significantly correlated with the percentage of these aggregates in soil. Thus, soil aggregation is thought to be the byproduct of an aerobic biosynthetic microbial process in which more stable hydrophobic organic C existed mainly in macropores. This process probably occurred within the first 60 days after RS application.
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Affiliation(s)
- Ibrahim Mohamed
- Department of Soils and Water Science, Faculty of Agriculture, Benha University, Benha, Qalyubia, Egypt
| | - Mohamed A Bassouny
- Department of Soils and Water Science, Faculty of Agriculture, Benha University, Benha, Qalyubia, Egypt
| | - Mohamed H H Abbas
- Department of Soils and Water Science, Faculty of Agriculture, Benha University, Benha, Qalyubia, Egypt
| | - Zhan Ming
- College of Plant Science and Technology, Huzahong Agricultural University, Wuhan, Hubei, 430070, China
| | - Cao Cougui
- College of Plant Science and Technology, Huzahong Agricultural University, Wuhan, Hubei, 430070, China.
| | - Shah Fahad
- Department of Agronomy, The University of Haripur, Haripur, 22620, Pakistan.
| | - Shah Saud
- Department of Horticulture, Northeast Agricultural University, Harbin, China
| | | | - Shamsher Ali
- Department of Soil and Environmental Sciences, Amir Muhammad Khan Campus Mardan, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Haythum M S Salem
- Department of Soils and Water Science, Faculty of Agriculture, Benha University, Benha, Qalyubia, Egypt
| | - Ahmed Azab
- Agricultural Engineering Research Center Institute (AEnRI), A.R.C, Giza, Egypt
| | - Maha Ali
- Department of Soils and Water Science, Faculty of Agriculture, Benha University, Benha, Qalyubia, Egypt
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Abdelhafez AA, Eid KE, El-Abeid SE, Abbas MHH, Ahmed N, Mansour RRME, Zou G, Iqbal J, Fahad S, Elkelish A, Alamri S, Siddiqui MH, Mohamed I. Application of soil biofertilizers to a clayey soil contaminated with Sclerotium rolfsii can promote production, protection and nutritive status of Phaseolus vulgaris. CHEMOSPHERE 2021; 271:129321. [PMID: 33434829 DOI: 10.1016/j.chemosphere.2020.129321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Sclerotium rolfsii is a soil-borne fungus that causes big losses in productivity of various plant species including Phaseolus vulgaris L. The objectives of this study were to (1) evaluate the impacts of Sclerotium rolfsii on growth and production of common bean plants, (2) determine the effects of Sclerotium rolfsii on nutritive contents of beans, and (3) test the efficacy of bio-inoculants on suppressing plant infection with Sclerotium rolfsii. To fulfill these objectives, we used a coupled pot and field experimental approaches during two growing seasons. Common beans were inoculated with either arbuscular mycorrhizal fungi (Claroideoglomus etunicatum), Saccharomyces cerevisiae, or Trichoderma viride solely or in different combinations. Non-inoculated plants and fungicide treated ones were considered as reference treatments. Throughout these experiments, minimal amounts of rock phosphate were added during soil preparation for bio-inoculated treatments, while the non-inoculated reference treatments received a full dose of P as calcium superphosphate. Results revealed that all tested bioinoculants significantly raised the activities of plant defense enzymes i.e. chitinase, peroxidase and polyphenoloxidase as compared to non-inoculated control. Likewise, pre-, post- and plant survival percentages significantly increased due to these bio-inoculations. Increased survival percentages were attributed to the concurrent increases in uptake of N, P and Zn nutrients by plants treated with bioinoculants. In this concern, plant nutrients uptake was higher in combined than single bio-inoculant treatments. Moreover, the uptake values of plant nutrients owing to the combined bio-inoculants were higher than the corresponding ones achieved due to fungicide treatment. In conclusion, application of the tested bio-inoculants, especially the combined ones can be considered an eco-friendly approach that not only enhances plants resistance against infection with Sclerotium rolfsii but also improves plant nutritive status.
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Affiliation(s)
- Ahmed A Abdelhafez
- Eco-environmental Protection Research Institute, Shanghai Academy of Agricultural Science (SAAS), China; New Valley University, Faculty of Agriculture, Soils and Water Department, Egypt; National Committee of Soil Science, Academy of Scientific Research and Technology, Egypt
| | - Khaled E Eid
- Plant Pathology Department, Faculty of Agriculture, Benha University Egypt
| | - Sozan E El-Abeid
- Plant Pathology Research Institute, Agriculture Research Centre (ARC), Giza, Egypt
| | - Mohamed H H Abbas
- Soils and Water Department, Faculty of Agriculture, Benha University, Egypt
| | - Nevin Ahmed
- Plant Protection Department, Faculty of Agriculture, Benha University, Egypt
| | | | - Guoyan Zou
- Eco-environmental Protection Research Institute, Shanghai Academy of Agricultural Science (SAAS), China
| | - Javed Iqbal
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, 570228, China; Department of Agronomy, The University of Haripur, Haripur, 22620, Pakistan.
| | - Amr Elkelish
- Botany Department, Faculty of Science, Suze Canal University, Ismailia, Egypt
| | - Saud Alamri
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 2455, Saudi Arabia
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 2455, Saudi Arabia
| | - Ibrahim Mohamed
- Soils and Water Department, Faculty of Agriculture, Benha University, Egypt.
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Kaur S, Suseela V. Unraveling Arbuscular Mycorrhiza-Induced Changes in Plant Primary and Secondary Metabolome. Metabolites 2020; 10:E335. [PMID: 32824704 PMCID: PMC7464697 DOI: 10.3390/metabo10080335] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/02/2020] [Accepted: 08/12/2020] [Indexed: 01/10/2023] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) is among the most ubiquitous plant mutualists that enhance plant growth and yield by facilitating the uptake of phosphorus and water. The countless interactions that occur in the rhizosphere between plants and its AMF symbionts are mediated through the plant and fungal metabolites that ensure partner recognition, colonization, and establishment of the symbiotic association. The colonization and establishment of AMF reprogram the metabolic pathways of plants, resulting in changes in the primary and secondary metabolites, which is the focus of this review. During initial colonization, plant-AMF interaction is facilitated through the regulation of signaling and carotenoid pathways. After the establishment, the AMF symbiotic association influences the primary metabolism of the plant, thus facilitating the sharing of photosynthates with the AMF. The carbon supply to AMF leads to the transport of a significant amount of sugars to the roots, and also alters the tricarboxylic acid cycle. Apart from the nutrient exchange, the AMF imparts abiotic stress tolerance in host plants by increasing the abundance of several primary metabolites. Although AMF initially suppresses the defense response of the host, it later primes the host for better defense against biotic and abiotic stresses by reprogramming the biosynthesis of secondary metabolites. Additionally, the influence of AMF on signaling pathways translates to enhanced phytochemical content through the upregulation of the phenylpropanoid pathway, which improves the quality of the plant products. These phytometabolome changes induced by plant-AMF interaction depends on the identity of both plant and AMF species, which could contribute to the differential outcome of this symbiotic association. A better understanding of the phytochemical landscape shaped by plant-AMF interactions would enable us to harness this symbiotic association to enhance plant performance, particularly under non-optimal growing conditions.
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Affiliation(s)
| | - Vidya Suseela
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC 29634, USA;
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