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Dhar SK, Kaur J, Singh GB, Chauhan A, Tamang J, Lakhara N, Asyakina L, Atuchin V, Mudgal G, Abdi G. Novel Bacillus and Prestia isolates from Dwarf century plant enhance crop yield and salinity tolerance. Sci Rep 2024; 14:14645. [PMID: 38918548 PMCID: PMC11199671 DOI: 10.1038/s41598-024-65632-x] [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: 03/26/2024] [Accepted: 06/21/2024] [Indexed: 06/27/2024] Open
Abstract
Soil salinity is a major environmental stressor impacting global food production. Staple crops like wheat experience significant yield losses in saline environments. Bioprospecting for beneficial microbes associated with stress-resistant plants offers a promising strategy for sustainable agriculture. We isolated two novel endophytic bacteria, Bacillus cereus (ADJ1) and Priestia aryabhattai (ADJ6), from Agave desmettiana Jacobi. Both strains displayed potent plant growth-promoting (PGP) traits, such as producing high amounts of indole-3-acetic acid (9.46, 10.00 µgml-1), ammonia (64.67, 108.97 µmol ml-1), zinc solubilization (Index of 3.33, 4.22, respectively), ACC deaminase production and biofilm formation. ADJ6 additionally showed inorganic phosphate solubilization (PSI of 2.77), atmospheric nitrogen fixation, and hydrogen cyanide production. Wheat seeds primed with these endophytes exhibited enhanced germination, improved growth profiles, and significantly increased yields in field trials. Notably, both ADJ1 and ADJ6 tolerated high salinity (up to 1.03 M) and significantly improved wheat germination and seedling growth under saline stress, acting both independently and synergistically. This study reveals promising stress-tolerance traits within endophytic bacteria from A. desmettiana. Exploiting such under-explored plant microbiomes offers a sustainable approach to developing salt-tolerant crops, mitigating the impact of climate change-induced salinization on global food security.
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Affiliation(s)
- Sanjoy Kumar Dhar
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Jaspreet Kaur
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Gajendra Bahadur Singh
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Arjun Chauhan
- Department of Biotechnology, Institute of Applied Sciences & Humanities, GLA University, Mathura, Uttar Pradesh, 281406, India
| | - Jeewan Tamang
- University Institute of Agricultural Sciences, Chandigarh University, Mohali, Punjab, 140413, India
- Khaniyabas Rural Municipality, Province 3, Dhading, Bagmati Zone, 45100, Nepal
| | - Nikita Lakhara
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India
| | - Lyudmila Asyakina
- Laboratory for Phytoremediation of Technogenically Disturbed Ecosystems, Kemerovo State University, Krasnaya Street, 6, Kemerovo, Russia, 650000
| | - Victor Atuchin
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk, Russia, 630090
- Research and Development Department, Kemerovo State University, Kemerovo, Russia, 650000
- Department of Industrial Machinery Design, Novosibirsk State Technical University, Novosibirsk, Russia, 630073
- R&D Center "Advanced Electronic Technologies", Tomsk State University, Tomsk, Russia, 634034
| | - Gaurav Mudgal
- University Institute of Biotechnology, Chandigarh University, Mohali, Punjab, 140413, India.
- Center for Waste Management and Renewable Energy, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India.
| | - Gholamreza Abdi
- Department of Biotechnology, Persian Gulf Research Institute, Persian Gulf University, Bushehr, 75169, Iran.
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Akram W, Waqar S, Hanif S, Anjum T, Aftab ZEH, Li G, Ali B, Rizwana H, Hassan A, Rehman A, Munir B, Umer M. Comparative Effect of Seed Coating and Biopriming of Bacillus aryabhattai Z-48 on Seedling Growth, Growth Promotion, and Suppression of Fusarium Wilt Disease of Tomato Plants. Microorganisms 2024; 12:792. [PMID: 38674736 PMCID: PMC11052163 DOI: 10.3390/microorganisms12040792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Beneficial plant microbes can enhance the growth and quality of field crops. However, the benefits of microbes using cheap and efficient inoculation methods are still uncommon. Seed coating with biocontrol agents can reduce the amount of inocula along with having the potential for large-scale application. Hence, in this research work, the comparative potential of tomato seed coating and biopriming with Bacillus aryabhattai Z-48, harboring multiple plant-beneficial traits, to suppress Fusarium wilt disease along with its beneficial effect on seedling and plant growth promotion was analyzed. Among two bacterial strains, B. aryabhattai Z-48 was able to antagonize the mycelial growth of Fusarium oxysporum f.sp. lycopersici in vitro and its application as a seed coating superiorly benefited seedling traits like the germination percentage, vigor index, and seedling growth index along with a reduced germination time. The seed coating with B. aryabhattai Z-48 resulted in significant increases in the shoot length, root length, dry biomass, and total chlorophyll contents when compared with the bioprimed seeds with the same bacterial strain and non-inoculated control plants. The seed coating with B. aryabhattai Z-48 significantly reduced the disease index (>60%) compared with the pathogen control during pot trials. Additionally, the seed coating with B. aryabhattai Z-48 resulted in a significantly higher production of total phenolics, peroxidase, polyphenol oxidase, and phenylalanine ammonia lyase enzyme in tomato plants. The GC/MS-based non-targeted metabolic profiling indicated that the seed coating with B. aryabhattai Z-48 could cause large-scale metabolite perturbations in sugars, sugar alcohols, amino acids, and organic acids to increase the fitness of tomato plants against biotic stress. Our study indicates that a tomato seed coating with B. aryabhattai Z-48 can improve tomato growth and suppress Fusarium wilt disease effectively under conventional agricultural systems.
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Affiliation(s)
- Waheed Akram
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Sara Waqar
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Sana Hanif
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Tehmina Anjum
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Zill-e-Huma Aftab
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Guihua Li
- Guangdong Key Laboratory for New Technology Research of Vegetables/Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Basharat Ali
- Institute of Microbiology and Molecular Genetics, University of the Punjab, Lahore 54590, Pakistan;
| | - Humaira Rizwana
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11495, Saudi Arabia;
| | - Ali Hassan
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
| | - Areeba Rehman
- College of Earth and Environmental Sciences, University of the Punjab, Lahore 54590, Pakistan; (A.R.); (B.M.)
| | - Bareera Munir
- College of Earth and Environmental Sciences, University of the Punjab, Lahore 54590, Pakistan; (A.R.); (B.M.)
| | - Muhammad Umer
- Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore 54590, Pakistan; (S.W.); (S.H.); (T.A.); (Z.-e.-H.A.); (A.H.); (M.U.)
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Abdukerim R, Xiang S, Shi Y, Xie X, Li L, Chai A, Li B, Fan T. Seed Pelleting with Gum Arabic-Encapsulated Biocontrol Bacteria for Effective Control of Clubroot Disease in Pak Choi. PLANTS (BASEL, SWITZERLAND) 2023; 12:3702. [PMID: 37960058 PMCID: PMC10647673 DOI: 10.3390/plants12213702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
Clubroot is one of the most serious soil-borne diseases on crucifer crops worldwide. Seed treatment with biocontrol agents is an effective and eco-friendly way to control clubroot disease. However, there is a big challenge to inoculating the seed with bacterial cells through seed pelleting due to the harsh environment on the seed surface or in the rhizosphere. In this study, a method for microbial seed pelleting was developed to protect pak choi seedlings against clubroot disease. Typically, a biocontrol bacterium, Paenibacillus polymyxa ZF129, was encapsulated by the spray-drying method with gum arabic as wall material, and then pak choi seeds were pelleted with the microencapsulated Paenibacillus polymyxa ZF129 (ZF129m). The morphology, storage stability, and release behavior of ZF129 microcapsules were evaluated. Compared with the naked Paenibacillus polymyxa ZF129 cells, encapsulated ZF129 cells showed higher viability during ambient storage on pak choi seeds. Moreover, ZF129m-pelleted seeds showed higher control efficacy (71.23%) against clubroot disease than that of nonencapsulated ZF129-pelleted seeds (61.64%) in pak choi. Seed pelleting with microencapsulated biocontrol Paenibacillus polymyxa ZF129 proved to be an effective and eco-friendly strategy for the control of clubroot disease in pak choi.
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Affiliation(s)
| | | | | | | | | | | | - Baoju Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (R.A.); (S.X.); (Y.S.); (X.X.); (L.L.); (A.C.)
| | - Tengfei Fan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (R.A.); (S.X.); (Y.S.); (X.X.); (L.L.); (A.C.)
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Rocha I, Ma Y, Souza-Alonso P, Vosátka M, Freitas H, Oliveira RS. Seed Coating: A Tool for Delivering Beneficial Microbes to Agricultural Crops. FRONTIERS IN PLANT SCIENCE 2019; 10:1357. [PMID: 31781135 PMCID: PMC6852281 DOI: 10.3389/fpls.2019.01357] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/02/2019] [Indexed: 05/21/2023]
Abstract
Plant beneficial microbes (PBMs), such as plant growth-promoting bacteria, rhizobia, arbuscular mycorrhizal fungi, and Trichoderma, can reduce the use of agrochemicals and increase plant yield, nutrition, and tolerance to biotic-abiotic stresses. Yet, large-scale applications of PBM have been hampered by the high amounts of inoculum per plant or per cultivation area needed for successful colonization and consequently the economic feasibility. Seed coating, a process that consists in covering seeds with low amounts of exogenous materials, is gaining attention as an efficient delivery system for PBM. Microbial seed coating comprises the use of a binder, in some cases a filler, mixed with inocula, and can be done using simple mixing equipment (e.g., cement mixer) or more specialized/sophisticated apparatus (e.g., fluidized bed). Binders/fillers can be used to extend microbial survival. The most reported types of seed coating are seed dressing, film coating, and pelleting. Tested in more than 50 plant species with seeds of different dimensions, forms, textures, and germination types (e.g., cereals, vegetables, fruits, pulses, and other legumes), seed coating has been studied using various species of plant growth-promoting bacteria, rhizobia, Trichoderma, and to a lesser extent mycorrhizal fungi. Most of the studies regarding PBM applied via seed coating are aimed at promoting crop growth, yield, and crop protection against pathogens. Studies have shown that coating seeds with PBM can assist crops in improving seedling establishment and germination or achieving high yields and food quality, under reduced chemical fertilization. The right combination of biological control agents applied via seed coating can be a powerful tool against a wide number of diseases and pathogens. Less frequently, studies report seed coating being used for adaptation and protection of crops under abiotic stresses. Notwithstanding the promising results, there are still challenges mainly related with the scaling up from the laboratory to the field and proper formulation, including efficient microbial combinations and coating materials that can result in extended shelf-life of both seeds and coated PBM. These limitations need to be addressed and overcome in order to allow a wider use of seed coating as a cost-effective delivery method for PBM in sustainable agricultural systems.
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Affiliation(s)
- Inês Rocha
- Centre for Functional Ecology – Science for People & the Planet, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- *Correspondence: Inês Rocha,
| | - Ying Ma
- Centre for Functional Ecology – Science for People & the Planet, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Pablo Souza-Alonso
- Centre for Functional Ecology – Science for People & the Planet, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Miroslav Vosátka
- Department of Mycorrhizal Symbioses, Institute of Botany, Academy of Sciences of the Czech Republic, Pru˚honice, Czechia
| | - Helena Freitas
- Centre for Functional Ecology – Science for People & the Planet, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Rui S. Oliveira
- Centre for Functional Ecology – Science for People & the Planet, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
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Xiao L, Wan JW, Yao JH, Feng H, Wei LH. Effects of Bacillus cereus strain Jdm1 on Meloidogyne incognita and the bacterial community in tomato rhizosphere soil. 3 Biotech 2018; 8:319. [PMID: 30034983 DOI: 10.1007/s13205-018-1348-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/10/2018] [Indexed: 01/20/2023] Open
Abstract
Bacillus cereus strain Jdm1 was isolated and tested for activity as a biocontrol agent to suppress Meloidogyne incognita. Petri dish test results indicated that Jdm1 culture supernatant significantly inhibited the second-stage juvenile (J2) activity and egg hatching, and also decreased the number of galls on tomato roots in the pot test. Control efficiency reached 43%, with improved growth compared to control plants. In field tests, control efficacies were greater than 50% 30 day post-inoculation, before decreasing. Furthermore, when avermectins were included to manage M. incognita, the yield of tomatoes was increased significantly. The effect of Jdm1 on the bacterial community in the tomato rhizosphere soil was monitored using PCR-denaturing gradient gel electrophoresis (PCR-DGGE) on field plants. DGGE band patterns and principal component analysis showed that application of Jdm1 did not permanently imperil the bacterial community, which recovered soon after inoculation, despite being impacted initially. The plant growth stage had a much greater influence on the bacterial community in tomato rhizosphere soil.
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Affiliation(s)
- Lei Xiao
- 1Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining and Technology, Xuzhou, 221116 China
| | - Jing-Wang Wan
- 1Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining and Technology, Xuzhou, 221116 China
| | - Jing-Hua Yao
- 1Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining and Technology, Xuzhou, 221116 China
| | - Hui Feng
- 2Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China
| | - Li-Hui Wei
- 2Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China
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Herrera Paredes S, Lebeis SL. Giving back to the community: microbial mechanisms of plant–soil interactions. Funct Ecol 2016. [DOI: 10.1111/1365-2435.12684] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sur Herrera Paredes
- Department of Biology Howard Hughes Medical Institute, Curriculum in Bioinformatics and Computational Biology University of North Carolina Chapel Hill North Carolina 27599‐3280 USA
| | - Sarah L. Lebeis
- Department of Microbiology University of Tennessee Knoxville Tennessee 37996‐0845 USA
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Caracterización de rizobacterias promotoras de crecimiento en plántulas de Eucalyptus nitens. Rev Argent Microbiol 2014; 46:338-47. [DOI: 10.1016/s0325-7541(14)70093-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 09/10/2014] [Indexed: 11/24/2022] Open
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Jetiyanon K, Plianbangchang P. Potential of Bacillus cereus strain RS87 for partial replacement of chemical fertilisers in the production of Thai rice cultivars. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2012; 92:1080-1085. [PMID: 22228472 DOI: 10.1002/jsfa.5533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Revised: 09/28/2011] [Accepted: 10/26/2011] [Indexed: 05/31/2023]
Abstract
BACKGROUND There is increasing interest in the development of technologies which can reduce the requirement for chemical fertilisers in rice production. The objective of this study was to investigate the efficacy of Bacillus cereus strain RS87 for the partial replacement of chemical fertiliser in rice production. A greenhouse experiment was designed using different fertiliser regimes, with and without strain RS87. Six Thai rice cultivars were tested separately. RESULTS Maximum rice growth and yield were obtained in rice receiving the full recommended fertiliser rate in combination with the strain RS87. Interestingly, all rice cultivars which were treated with strain RS87 and 50% recommended fertiliser rate provided equivalent plant growth and yield to that receiving the full recommended fertiliser rate only. A paired comparison between rice treated with 50% of the recommended fertiliser rate with the bacterial inoculant and the full fertiliser rate alone was further examined in small experimental rice paddy fields. Growth and yield of all rice cultivars which received the 50% fertiliser rate supplemented with strain RS87 gave a similar yield to that receiving the full fertiliser rate alone. CONCLUSION Bacterial strain RS87 showed the potential to replace 50% of the recommended fertiliser rate for yield production. Integration of plant growth-promoting rhizobacterial inoculants with reduced application rates of chemical fertiliser appears promising for future agriculture.
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Affiliation(s)
- Kanchalee Jetiyanon
- Faculty of Agriculture, Natural Resources, and Environment, Nareusuan University, Phitsanulok 65000, Thailand.
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Jetiyanon K, Plianbangchang P. Dose-responses of Bacillus cereus RS87 for growth enhancement in various Thai rice cultivars. Can J Microbiol 2010; 56:1011-9. [DOI: 10.1139/w10-090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To achieve the goal of reducing the levels of chemical fertilizers applied in rice production, there is a need to develop microorganisms with the capacity to enhance plant growth. Previous studies have demonstrated that Bacillus cereus RS87 promotes growth of various plants in greenhouse and field trials. The objectives of this study were to (i) evaluate the efficacy and determine the optimum concentration of B. cereus RS87 to enhance growth of various Thai rice cultivars, (ii) measure the chlorophyll content in leaves affected by strain RS87, and (iii) investigate the capacity of strain RS87 to solubilize phosphate and produce siderophores. Three concentrations of strain RS87 (log 6.0, log 7.0, and log 8.0 CFU/mL) were applied to each rice cultivar. Superior responses (i.e., enhanced development of roots and shoots of all rice cultivars) were observed using RS87 at log 8.0 CFU/mL compared with lower bacterial concentrations and the water-treated control treatment. In addition, log 8.0 CFU/mL of RS87 provided the greatest root length and plant height of all rice cultivars 45 days after planting in the greenhouse. Rice leaves treated with log 8.0 CFU/mL of RS87 yielded the highest total chlorophyll, specifically chlorophyll a and chlorophyll b, compared with the control. Strain RS87 also solubilized phosphate and produced siderophores. The results of these studies demonstrate that log 8.0 CFU/mL is the optimum concentration of strain RS87 for growth promotion of various Thai rice cultivars.
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Affiliation(s)
- Kanchalee Jetiyanon
- Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand 65000
- Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand 65000
| | - Pinyupa Plianbangchang
- Faculty of Agriculture, Natural Resources, and Environment, Naresuan University, Phitsanulok, Thailand 65000
- Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand 65000
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