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Khan A, Singh AV, Kukreti B, Pandey DT, Upadhayay VK, Kumar R, Goel R. Deciphering the impact of cold-adapted bioinoculants on rhizosphere dynamics, biofortification, and yield of kidney bean across varied altitudinal zones. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172204. [PMID: 38580128 DOI: 10.1016/j.scitotenv.2024.172204] [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: 12/28/2023] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Agriculture stands as a thriving enterprise in India, serving as both the bedrock of economy and vital source of nutrition. In response to the escalating demands for high-quality food for swiftly expanding population, agricultural endeavors are extending their reach into the elevated terrains of the Himalayas, tapping into abundant resources for bolstering food production. Nonetheless, these Himalayan agro-ecosystems encounter persistent challenges, leading to crop losses. These challenges stem from a combination of factors including prevailing frigid temperatures, suboptimal farming practices, unpredictable climatic shifts, subdivided land ownership, and limited resources. While the utilization of chemical fertilizers has been embraced to enhance the quality of food output, genuine concerns have arisen due to the potential hazards they pose. Consequently, the present investigation was initiated with the objective of formulating environmentally friendly and cold-tolerant broad ranged bioinoculants tailored to enhance the production of Kidney bean while concurrently enriching its nutrient content across entire hilly regions. The outcomes of this study unveiled noteworthy advancements in kidney bean yield, registering a substantial increase ranging from 12.51 ± 2.39 % to 14.15 ± 0.83 % in regions of lower elevation (Jeolikote) and an even more remarkable surge ranging from 20.60 ± 3.03 % to 29.97 ± 5.02 % in higher elevated areas (Chakrata) compared to the control group. Furthermore, these cold-tolerant bioinoculants exhibited a dual advantage by fostering the enhancement of essential nutrients within the grains and fostering a positive influence on the diversity and abundance of microbial life in the rhizosphere. As a result, to effectively tackle the issues associated with chemical fertilizers and to achieve sustainable improvements in both the yield and nutrient composition of kidney bean across varying elevations, the adoption of cold-tolerant Enterobacter hormaechei CHM16, and Pantoea agglomerans HRM 23, including the consortium, presents a promising avenue. Additionally, this study has contributed significant insights-into the role of organic acids like oxalic acid in the solubilization of nutrients, thereby expanding the existing knowledge in this specialized field.
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Affiliation(s)
- Amir Khan
- Biofortification Lab, Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, U.S. Nagar, Uttarakhand, India
| | - Ajay Veer Singh
- Biofortification Lab, Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, U.S. Nagar, Uttarakhand, India.
| | - Bharti Kukreti
- Biofortification Lab, Department of Microbiology, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, U.S. Nagar, Uttarakhand, India
| | | | - Viabhav Kumar Upadhayay
- Department of Microbiology, College of Basic Sciences and Humanities, Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur 848125, India
| | - Rajeew Kumar
- Department of Agronomy, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263145, U.S. Nagar, Uttarakhand, India
| | - Reeta Goel
- Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura, Uttar Pradesh, India
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Naik B, Kumar V, Rizwanuddin S, Mishra S, Kumar V, Saris PEJ, Khanduri N, Kumar A, Pandey P, Gupta AK, Khan JM, Rustagi S. Biofortification as a solution for addressing nutrient deficiencies and malnutrition. Heliyon 2024; 10:e30595. [PMID: 38726166 PMCID: PMC11079288 DOI: 10.1016/j.heliyon.2024.e30595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/12/2024] Open
Abstract
Malnutrition, defined as both undernutrition and overnutrition, is a major global health concern affecting millions of people. One possible way to address nutrient deficiency and combat malnutrition is through biofortification. A comprehensive review of the literature was conducted to explore the current state of biofortification research, including techniques, applications, effectiveness and challenges. Biofortification is a promising strategy for enhancing the nutritional condition of at-risk populations. Biofortified varieties of basic crops, including rice, wheat, maize and beans, with elevated amounts of vital micronutrients, such as iron, zinc, vitamin A and vitamin C, have been successfully developed using conventional and advanced technologies. Additionally, the ability to specifically modify crop genomes to improve their nutritional profiles has been made possible by recent developments in genetic engineering, such as CRISPR-Cas9 technology. The health conditions of people have been shown to improve and nutrient deficiencies were reduced when biofortified crops were grown. Particularly in environments with limited resources, biofortification showed considerable promise as a long-term and economical solution to nutrient shortages and malnutrition. To fully exploit the potential of biofortified crops to enhance public health and global nutrition, issues such as consumer acceptance, regulatory permitting and production and distribution scaling up need to be resolved. Collaboration among governments, researchers, non-governmental organizations and the private sector is essential to overcome these challenges and promote the widespread adoption of biofortification as a key part of global food security and nutrition strategies.
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Affiliation(s)
- Bindu Naik
- Department of Food Science and Technology, Graphic Era (Deemed to Be) University, Bell Road, Clement Town, Dehradun, 248002, Uttarakhand, India
- School of Agriculture, Graphic Hill University, Clement Town, Dehradun, Uttarakhand, India
| | - Vijay Kumar
- Himalayan School of Biosciences, Swami Rama Himalayan University, Swami Rama Nagar, Jolly Grant, Dehradun, 248016, Uttarakhand, India
| | - Sheikh Rizwanuddin
- Department of Food Science and Technology, Graphic Era (Deemed to Be) University, Bell Road, Clement Town, Dehradun, 248002, Uttarakhand, India
| | - Sadhna Mishra
- Faculty of Agricultural Sciences, GLA University, Mathura, India
| | - Vivek Kumar
- Himalayan School of Biosciences, Swami Rama Himalayan University, Swami Rama Nagar, Jolly Grant, Dehradun, 248016, Uttarakhand, India
| | - Per Erik Joakim Saris
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, 00100, Helsinki, Finland
| | - Naresh Khanduri
- Himalayan School of Biosciences, Swami Rama Himalayan University, Swami Rama Nagar, Jolly Grant, Dehradun, 248016, Uttarakhand, India
| | - Akhilesh Kumar
- Himalayan School of Biosciences, Swami Rama Himalayan University, Swami Rama Nagar, Jolly Grant, Dehradun, 248016, Uttarakhand, India
| | - Piyush Pandey
- Soil and Environment Microbiology Laboratory, Department of Microbiology, Assam University, Silchur, 788011, Assam, India
| | - Arun Kumar Gupta
- Department of Food Science and Technology, Graphic Era (Deemed to Be) University, Bell Road, Clement Town, Dehradun, 248002, Uttarakhand, India
| | - Javed Masood Khan
- Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, 2460, Riyadh, 11451, Saudi Arabia
| | - Sarvesh Rustagi
- Department of Food Technology, Uttaranchal University, Dehradun, 248007, Uttarakhand, India
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Janati W, Bouabid R, Mikou K, Ghadraoui LE, Errachidi F. Phosphate solubilizing bacteria from soils with varying environmental conditions: Occurrence and function. PLoS One 2023; 18:e0289127. [PMID: 38064520 PMCID: PMC10707511 DOI: 10.1371/journal.pone.0289127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/11/2023] [Indexed: 12/18/2023] Open
Abstract
Phosphate solubilizing bacteria (PSB) is an advantageous way to supply phosphate (P) to plants. The Mediterranean climate of Morocco, especially the low-lying areas, is semi-arid with nutrient-depleted soils in which small-scale, low-income farmers dominate without access to expensive inorganic fertilizers. However, there is not a wide range of PSBs suitable for various agroecological situations. Furthermore, our understanding of the soil and climatic variables that influence their development is limited. This study aims to examine the impacts of specific environmental factors, such as climate and soil, on the abundance, potential, and diversity of PSBs in four agricultural regions of Morocco. To assess the possible impact of these factors on the P solubilization capacity of PSBs and plant growth-promoting (PGP) traits, we analyzed the soil and climate of each sample studied. Similarly, we tested the P solubilization efficiency of the isolates. The bacteria were isolated in a National Botanical Research Institute's phosphate (NBRIP) agar medium. A total of 51 PSBs were studied in this work. The P-solubilization average of Rock P (RP) and Tricalcium P (TCP) of all strains that were isolated from each of the four regions ranged from 18.69 mg.L-1 to 40.43 mg.L-1 and from 71.71 mg.L-1 to 94.54 mg.L-1, respectively. The PGP traits of the isolated strains are positively correlated with the PSBs abundance and the sample characteristics (soil and climate). The morphological and biochemical characteristics of the strain allowed us to identify around nine different bacterial genera, including Bacillus, Pseudomonas, and Rhizobium. The findings showed that bacterial communities, density, and potency are closely correlated to various edapho-climatic conditions such as temperature, precipitation, soil nutrient status, and soil texture. These findings could be used to improve an effective plant-PSBs system and increase agricultural output by taking into account their specific ecological traits and plant growth mechanisms.
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Affiliation(s)
- Walid Janati
- Department of Biology, Functional Ecology and Environment Engineering Laboratory, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Rachid Bouabid
- Department of Agronomy, National School of Agriculture, Meknes, Morocco
| | - Karima Mikou
- Department of Biology, Functional Ecology and Environment Engineering Laboratory, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Lahsen El Ghadraoui
- Department of Biology, Functional Ecology and Environment Engineering Laboratory, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
| | - Faouzi Errachidi
- Department of Biology, Functional Ecology and Environment Engineering Laboratory, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Fez, Morocco
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Ravi A, Das S, Sebastian SK, Aravindakumar CT, Mathew J, Krishnankutty RE. Bioactive Metabolites of Serratia sp. NhPB1 Isolated from Pitcher of Nepenthes and its Application to Control Pythium aphanidermatum. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10154-7. [PMID: 37872287 DOI: 10.1007/s12602-023-10154-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2023] [Indexed: 10/25/2023]
Abstract
Plant-associated bacteria have already been considered as the store house of bioactive compounds that confer the plant growth promotion and disease protection. Hence, the unique plant parts have already been expected to harbor diverse microbial communities with multi-beneficial properties. Based on this, the current study has been designed to identify the potential of Serratia sp. NhPB1 isolated from the pitcher of Nepenthes plant for its activity against the infamous pathogen Pythium aphanidermatum. The in vitro antifungal, plant growth promoting and enzymatic activities of the isolate indicated its promises for agricultural application. The isolate NhPB1 was also demonstrated to have positive effect on Solanum lycopersicum and Capsicum annuum, due to its plant beneficial metabolites. From the results of LC-MS/MS analysis, the isolate has also been revealed to have the ability to synthesize bioactive compounds including salicylic acid, cyclodipeptides, acyl homoserine lactone, indole-3-acetic acid, and serrawettin W1. These identified compounds and their known biological properties make the isolate characterized in the study to have significant promises as an eco-friendly solution for the improvement of agricultural productivity.
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Affiliation(s)
- Aswani Ravi
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Soumya Das
- Department of Zoology, KE College, Mannanam, Kottayam, 686561, India
| | | | - Charuvila T Aravindakumar
- School of Environmental Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
- Inter University Instrumentation Centre, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Jyothis Mathew
- School of Biosciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
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Sultan AAYA, Gebreel HM, Youssef HIA. Biofertilizer effect of some zinc dissolving bacteria free and encapsulated on Zea mays growth. Arch Microbiol 2023; 205:202. [PMID: 37084028 PMCID: PMC10121707 DOI: 10.1007/s00203-023-03537-5] [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: 12/31/2022] [Revised: 04/02/2023] [Accepted: 04/03/2023] [Indexed: 04/22/2023]
Abstract
Crop nutrition depends on zinc for enzymatic, oxidative, and metabolic processes. In the current study 20 different bacteria were isolated from five soil samples collected from different fields in Egypt. Bacterial isolates were screened for their ability to solubilize insoluble zinc oxide and zinc carbonate. The ability of selected isolates to tolerate soluble zinc was determined using different concentrations of (ZnSO4). Three bacterial isolates were selected with efficiency in solubilizing zinc oxide and zinc carbonate while tolerating high levels of soluble zinc. Molecular identification by 16S rRNA sequencing of the chosen isolates identified them as B3 (Acinetobacter calcoaceticus), B5 (Bacillus proteolyticus) and C6 (Stenotrophomonas pavanii). Sodium alginate beads formulated with the isolated bacteria were tested for stability under different storage conditions for 3 months. A pot experiment was conducted to study and compare the effect of using chosen isolates as an in vivo Zn solubilizer with amended ZnCO3 either alone or embedded in beads as carrier in the soil and its effect on growth parameters of Zea mays after 2 months. There was an increase in Zn uptake in all treatments compared to the control. However, plants grown in a pot treated with ZnCO3 and Acinetobacter calcoaceticus showed the highest zinc content and plant dry weight as compared to the control. Finally, selected isolates in both free and encapsulated forms showed improved plant growth parameters and higher zinc content and can be applied as biofertilizers to enhance soil fertility.
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Affiliation(s)
| | - Hassan Mahmoud Gebreel
- Department of Microbiology, Faculty of Science, Ain Shams University, El-Khalyfa El-Mamoun Street Abbasya, Cairo, Egypt
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Chaudhary R, Kumar V, Gupta S, Naik B, Prasad R, Mishra S, Saris PEJ, Kumar V. Finger Millet ( Eleusine coracana) Plant-Endophyte Dynamics: Plant Growth, Nutrient Uptake, and Zinc Biofortification. Microorganisms 2023; 11:microorganisms11040973. [PMID: 37110396 PMCID: PMC10143119 DOI: 10.3390/microorganisms11040973] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
Endophytic fungi and bacteria were isolated from finger millet and their effects on finger millet growth parameters and zinc and NPK contents in grains were studied. Out of 70 fungal and 112 bacterial endophytes, the two best fungal and bacterial isolates were selected on the basis of zinc solubilization and plant-growth-promoting attributes. The fungal isolates identified were Aspergillus terreus and Lecanicillium sp., and the bacterial isolates were Pseudomonas bijieensis and Priestia megaterium. The endophytic zinc, NPK mobilization, and plant-growth-promoting efficacy were determined in a pot experiment with zinc carbonate as the zinc source. Endophytic-primed plants showed enhanced shoot and root lengths compared to the unprimed control. Endophytes increased the zinc content in grains by between 12.12% and 18.80% compared to control plants. Endophytes also augmented the NPK concentrations in seeds compared to control plants and exhibited stability in a diverse range of pHs, temperatures, and NaCl concentrations, and exhibited growth on various carbohydrate and nitrogen sources. This is the first study reporting the interaction of Aspergillus terreus, Lecanicillium sp., Pseudomonas bijieensis, and Priestia megaterium with finger millet for grain Zn biofortification and NPK concentration enhancement. This study indicated that zinc-dissolving endophytes possess the potential for enhancing the zinc and NPK content in grains in addition to the plant-growth-promoting attributes.
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Affiliation(s)
- Renu Chaudhary
- Himalayan School of Biosciences, Swami Rama Himalayan University, Jolly Grant, Dehradun 248016, India
| | - Vijay Kumar
- Himalayan School of Biosciences, Swami Rama Himalayan University, Jolly Grant, Dehradun 248016, India
| | - Sanjay Gupta
- Himalayan School of Biosciences, Swami Rama Himalayan University, Jolly Grant, Dehradun 248016, India
| | - Bindu Naik
- Department of Life Sciences, Graphic Era (Deemed to be) University, Bell Road, Clement Town, Dehradun 248002, India
| | - Ram Prasad
- Department of Botany, School of Life Sciences, Mahatma Gandhi Central University, Motihari 845401, India
| | - Sadhna Mishra
- Faculty of Agricultural Sciences, GLA University, Mathura 281406, India
| | - Per Erik Joakim Saris
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, 00100 Helsinki, Finland
| | - Vivek Kumar
- Himalayan School of Biosciences, Swami Rama Himalayan University, Jolly Grant, Dehradun 248016, India
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Xavier GR, Jesus EDC, Dias A, Coelho MRR, Molina YC, Rumjanek NG. Contribution of Biofertilizers to Pulse Crops: From Single-Strain Inoculants to New Technologies Based on Microbiomes Strategies. PLANTS (BASEL, SWITZERLAND) 2023; 12:954. [PMID: 36840302 PMCID: PMC9962295 DOI: 10.3390/plants12040954] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Pulses provide distinct health benefits due to their low fat content and high protein and fiber contents. Their grain production reaches approximately 93,210 × 103 tons per year. Pulses benefit from the symbiosis with atmospheric N2-fixing bacteria, which increases productivity and reduces the need for N fertilizers, thus contributing to mitigation of environmental impact mitigation. Additionally, the root region harbors a rich microbial community with multiple traits related to plant growth promotion, such as nutrient increase and tolerance enhancement to abiotic or biotic stresses. We reviewed the eight most common pulses accounting for almost 90% of world production: common beans, chickpeas, peas, cowpeas, mung beans, lentils, broad beans, and pigeon peas. We focused on updated information considering both single-rhizobial inoculation and co-inoculation with plant growth-promoting rhizobacteria. We found approximately 80 microbial taxa with PGPR traits, mainly Bacillus sp., B. subtilis, Pseudomonas sp., P. fluorescens, and arbuscular mycorrhizal fungi, and that contributed to improve plant growth and yield under different conditions. In addition, new data on root, nodule, rhizosphere, and seed microbiomes point to strategies that can be used to design new generations of biofertilizers, highlighting the importance of microorganisms for productive pulse systems.
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Affiliation(s)
| | | | - Anelise Dias
- Departamento de Fitotecnia, Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, UFRRJ, Rodovia BR-465, Km 7, Seropédica 23890-000, RJ, Brazil
| | | | - Yulimar Castro Molina
- Programa de Pós-graduação em Microbiologia Agrícola, Universidade Federal de Lavras, UFLA, Trevo Rotatório Professor Edmir Sá Santos, Lavras 37203-202, MG, Brazil
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Bhattacharjee K, Barua S, Chrungoo NK, Joshi SR. Characterization of Biomineralizing and Plant Growth-Promoting Attributes of Lithobiontic Bacteria. Curr Microbiol 2023; 80:80. [PMID: 36662359 DOI: 10.1007/s00284-022-03176-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 12/30/2022] [Indexed: 01/21/2023]
Abstract
The application of mineral-solubilizing, plant growth-promoting bacteria as inoculants offers a promising alternative to chemical fertilizers. In the present study, lithic bacterial isolates were evaluated for mineral solubilization and plant growth-promoting potential. Among the 57 lithic bacterial isolates associated with different rock samples collected from various locations in Meghalaya, India, nine K-solubilizing isolates, six S-solubilizing isolates, five P- and Si-solubilizing isolates, and three Zn-solubilizing isolates with notable indole-3-acetic acid and siderophore production, and ACC deaminase activity were selected for further study. Based on 16S rRNA gene sequence analysis, isolates were affiliated to nine different genera (Arthrobacter, Acinetobacter, Pseudomonas, Halopseudomonas, Bacillus, Neobacillus, Peribacillus, Pantoea, and Priestia). On performing rice seed germination potentials, Pantoea agglomerans BL26, Priestia megaterium BL9, Bacillus subtilis GP2, Halopseudomonas xinjiangensis BL29, and Pseudomonas sp. BM1 were selected for in vitro pot experiments, being the most potent isolates. Following inoculation, all five isolates were found to significantly enhance growth of rice plants (P < 0.05). The maximum shoot length increased due to P. megaterium BL9, the maximum root length increased due to H. xinjiangensis BL29, and the maximum plant fresh weight increased due to P. megaterium BL9. The findings concluded that these five lithic bacterial isolates have potent plant growth-promoting potential with possible prospection through field trials. To the best of available literature, this is a first report on the characterization of lithic bacterial isolates as mineral solubilizers and plant growth promoters.
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Affiliation(s)
- Kaushik Bhattacharjee
- Centre for Advanced Studies in Botany, Department of Botany, North-Eastern Hill University, Shillong, 793022, India.,Microbiology Laboratory, Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong, 793022, India.,North East Centre for Biological Sciences and Healthcare Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | - Sushmita Barua
- Centre for Advanced Studies in Botany, Department of Botany, North-Eastern Hill University, Shillong, 793022, India
| | - Nikhil K Chrungoo
- Centre for Advanced Studies in Botany, Department of Botany, North-Eastern Hill University, Shillong, 793022, India
| | - Santa R Joshi
- Microbiology Laboratory, Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong, 793022, India.
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Srithaworn M, Jaroenthanyakorn J, Tangjitjaroenkun J, Suriyachadkun C, Chunhachart O. Zinc solubilizing bacteria and their potential as bioinoculant for growth promotion of green soybean ( Glycine max L. Merr.). PeerJ 2023; 11:e15128. [PMID: 37193032 PMCID: PMC10182760 DOI: 10.7717/peerj.15128] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/04/2023] [Indexed: 05/18/2023] Open
Abstract
Zinc-solubilizing rhizobacteria can convert insoluble zinc to an accessible form and increase Zn bioavailability in soil, which help mitigate Zn deficiency in crops. In this work, 121 bacterial isolates were isolated from the rhizosphere soils of peanuts, sweet potatoes, and cassava, and their capability to solubilize Zn was evaluated using Bunt and Rovira's agar containing 0.1% ZnO and ZnCO3. Among these isolates, six showed high Zn solubilization efficiencies ranging from 1.32 to 2.84 and 1.93 to 2.27 on the medium supplemented with 0.1% ZnO and ZnCO3, respectively. In a quantitative analysis of soluble Zn in liquid medium supplemented with 0.1% ZnO, the isolate KAH109 showed the maximum soluble zinc concentration of 62.89 mg L-1. Among the six isolates, the isolate KAH109 also produced the most indole-3-acetic acid (IAA) at 33.44 mg L-1, whereas the isolate KEX505 also produced IAA at 17.24 mg L-1 along with showing zinc and potassium solubilization activity. These strains were identified as Priestia megaterium KAH109 and Priestia aryabhattai KEX505 based on 16S rDNA sequence analysis. In a greenhouse experiment conducted in Nakhon Pathom, Thailand the ability of P. megaterium KAH109 and P. aryabhattai KEX505 to stimulate the growth and production of green soybeans was examined. The results revealed that inoculation with P. megaterium KAH109 and P. aryabhattai KEX505 considerably increased plant dry weight by 26.96% and 8.79%, respectively, and the number of grains per plant by 48.97% and 35.29% when compared to those of the uninoculated control. According to these results, both strains can be considered as a potential zinc solubilizing bioinoculant to promote the growth and production yield of green soybeans.
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Affiliation(s)
- Moltira Srithaworn
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | - Jieb Jaroenthanyakorn
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | - Janpen Tangjitjaroenkun
- Department of Resources and Environment, Faculty of Science at Sriracha, Kasetsart University Sriracha Campus, Chonburi, Thailand
| | - Chanwit Suriyachadkun
- Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Patumthani, Thailand
| | - Orawan Chunhachart
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
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Plant Growth-Promoting Attributes of Zinc Solubilizing Dietzia maris Isolated from Polyhouse Rhizospheric Soil of Punjab. Curr Microbiol 2023; 80:48. [DOI: 10.1007/s00284-022-03147-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 12/10/2022] [Indexed: 12/24/2022]
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Suriyachadkun C, Chunhachart O, Srithaworn M, Tangchitcharoenkhul R, Tangjitjareonkun J. Zinc-Solubilizing Streptomyces spp. as Bioinoculants for Promoting the Growth of Soybean ( Glycine max (L.) Merrill). J Microbiol Biotechnol 2022; 32:1435-1446. [PMID: 36330749 PMCID: PMC9720072 DOI: 10.4014/jmb.2206.06058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 10/05/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
Abstract
Zinc-solubilizing bacteria can convert the insoluble form of zinc into soluble forms available to plants. This study was conducted to isolate and screen zinc-solubilizing actinobacteria from rhizosphere soils and to assess their effect on vegetable soybean growth. In total, 200 actinobacteria strains belonging to 10 genera were isolated from rhizosphere soil samples. Among these isolates, four showed zinc solubilization with solubilizing index values ranging from 3.11 to 3.78 on Bunt and Rovira agar supplemented with 0.1% zinc oxide. For the quantitative assay, in broth culture, strains CME34 and EX51 solubilized maximum available zinc contents of 529.71 and 243.58 μg/ml. Furthermore, indole-3-acetic acid (IAA) and ammonia were produced by these two strains, the strain CME34 produced the highest amount of IAA 4.62 μg/ml and the strain EX51 produced the highest amount of ammonia 361.04 μg/ml. In addition, the phosphate-solubilizing abilities in Pikovskaya's medium of CME34 and EX51 were 64.67 and 115.67 μg/ml. Based on morphological and biochemical characterization and 16S rDNA sequencing, the strains CME34 and EX51 were closely related to the genus Streptomyces. In a greenhouse experiment, single-strain inoculation of Streptomyces sp. CME34 or EX51 significantly increased the shoot length, root length, plant dry weight, number of pods per plant and number of seeds per plant of vegetable soybean plants compared to the uninoculated control. These findings facilitated the conclusion that the two Streptomyces strains have potential as zinc solubilizers and can be suggested as bioinoculants to promote the growth and yield of soybean.
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Affiliation(s)
- Chanwit Suriyachadkun
- Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Orawan Chunhachart
- Division of Microbiology, Department of Science, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakorn Pathom, 73140, Thailand
| | - Moltira Srithaworn
- Division of Microbiology, Department of Science, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakorn Pathom, 73140, Thailand
| | | | - Janpen Tangjitjareonkun
- Department of Resources and Environment, Faculty of Science at Sriracha, Kasetsart University, Sriracha Campus, Chonburi, 20230, Thailand,Corresponding author Phone: +66-38-352813 Fax: +66-38-354587 E-mail:
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Koul B, Sharma K, Sehgal V, Yadav D, Mishra M, Bharadwaj C. Chickpea ( Cicer arietinum L.) Biology and Biotechnology: From Domestication to Biofortification and Biopharming. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11212926. [PMID: 36365379 PMCID: PMC9654780 DOI: 10.3390/plants11212926] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/13/2022] [Accepted: 10/25/2022] [Indexed: 05/13/2023]
Abstract
Chickpea (Cicer arietinum L.), the world's second most consumed legume crop, is cultivated in more than 50 countries around the world. It is a boon for diabetics and is an excellent source of important nutrients such as vitamins A, C, E, K, B1-B3, B5, B6, B9 and minerals (Fe, Zn, Mg and Ca) which all have beneficial effects on human health. By 2050, the world population can cross 9 billion, and in order to feed the teaming millions, chickpea production should also be increased, as it is a healthy alternative to wheat flour and a boon for diabetics. Moreover, it is an important legume that is crucial for food, nutrition, and health security and the livelihood of the small-scale farmers with poor resources, in developing countries. Although marvelous improvement has been made in the development of biotic and abiotic stress-resistant varieties, still there are many lacunae, and to fulfill that, the incorporation of genomic technologies in chickpea breeding (genomics-assisted breeding, high-throughput and precise-phenotyping and implementation of novel breeding strategies) will facilitate the researchers in developing high yielding, climate resilient, water use efficient, salt-tolerant, insect/pathogen resistant varieties, acceptable to farmers, consumers, and industries. This review focuses on the origin and distribution, nutritional profile, genomic studies, and recent updates on crop improvement strategies for combating abiotic and biotic stresses in chickpea.
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Affiliation(s)
- Bhupendra Koul
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, India
- Correspondence: (B.K.); (D.Y.); (M.M.)
| | - Komal Sharma
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, India
| | - Vrinda Sehgal
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, India
| | - Dhananjay Yadav
- Department of Life Science, Yeungnam University, Gyeongsan 38541, Korea
- Correspondence: (B.K.); (D.Y.); (M.M.)
| | - Meerambika Mishra
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, FL 32611, USA
- Correspondence: (B.K.); (D.Y.); (M.M.)
| | - Chellapilla Bharadwaj
- Division of Genetics, Indian Agricultural Research Institute (IARI), Pusa, New Delhi 110012, India
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