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Gupta S, Pandey S, Kotra V, Kumar A. Assessing the role of ACC deaminase-producing bacteria in alleviating salinity stress and enhancing zinc uptake in plants by altering the root architecture of French bean (Phaseolus vulgaris) plants. PLANTA 2023; 258:3. [PMID: 37212904 DOI: 10.1007/s00425-023-04159-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 05/14/2023] [Indexed: 05/23/2023]
Abstract
MAIN CONCLUSION The consortium inoculation with strains R1 and R4 modified the root system to boost seedling growth, increase the zinc content of French bean pods, and reduce salinity stress. The present study demonstrated the effect of two 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase-producing plant growth-promoting rhizobacteria (Pantoea agglomerans R1 and Pseudomonas fragi R4) alone and consortia on the root system development, French bean growth, and zinc content as well as salinity stress tolerance. Both the strains were characterized for ACC utilization activity (426.23 and 380.54 nmol α-ketobutyrate mg protein-1 h-1), indole acetic acid (IAA) production, phosphate solubilization, ammonia, hydrogen cyanide (HCN), and siderophore production. The strains exhibited zinc solubilization in both plate and broth assays with zinc oxide and zinc carbonate as zinc sources as validated by atomic absorption spectroscopy (AAS). Single or combined inoculations with the selected strains significantly modulated the architectural and morphological traits of the root system of French bean plants. Furthermore, the application of R1and R4 consortia has enhanced zinc content in roots (60.83 mg kg-1), shoots (15.41 mg kg-1), and pods (30.04 mg kg-1) of French bean plants grown in ZnCO3 amended soil. In another set of pot experiments, the consortium bacterization has significantly enhanced length as well as fresh and dry biomass of roots and shoots of the French bean plant under saline stress conditions. Additionally, inoculation with ACC-degrading rhizobacterial strains has increased chlorophyll and carotenoid contents, osmoprotectant content, and antioxidative enzyme (catalase and peroxidase) activity in comparison to their counterparts exposed to salt treatments only. Current findings suggested ACC deaminase-producing rhizobacterial strains hold the potential to improve root architecture which in turn promotes plant growth under salt-stressed conditions as well as enhances micronutrient concentration in host plants.
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Affiliation(s)
- Shikha Gupta
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India
| | - Sangeeta Pandey
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India.
| | - Vashista Kotra
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida, Uttar Pradesh, 201313, India
| | - Atul Kumar
- Division of Seed Science and Technology, ICAR, Indian Agricultural Research Institute, Pusa, New Delhi, 110012, India
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Monika G, Melanie Kim SR, Kumar PS, Gayathri KV, Rangasamy G, Saravanan A. Biofortification: A long-term solution to improve global health- a review. CHEMOSPHERE 2023; 314:137713. [PMID: 36596329 DOI: 10.1016/j.chemosphere.2022.137713] [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: 07/17/2022] [Revised: 11/20/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Biofortification is a revolutionary technique for improving plant nutrition and alleviating human micronutrient deficiency. Fertilizers can help increase crop yield and growth, but applying too much fertilizer can be a problem because it leads to the release of greenhouse gases and eutrophication. One of the major global hazards that affects more than two million people globally is the decreased availability of micronutrients in food crops, which results in micronutrient deficiencies or "hidden hunger" in people. Micronutrients, like macronutrients, perform a variety of roles in plant and human nutrition. This review has highlighted the importance of micronutrients as well as their advantages. The uneven distribution of micronutrients in geological areas is not the only factor responsible for micronutrient deficiencies, other parameters including soil moisture, temperature, texture of the soil, and soil pH significantly affects the micronutrient concentration and their availability in the soil. To overcome this, different biofortification approaches are assessed in the review in which microbes mediated, Agronomic approaches, Plant breeding, and transgenic approaches are discussed. Hidden hunger can result in risky health conditions and diseases such as cancer, cardiovascular disease, osteoporosis, neurological disorders, and many more. Microbes-mediated biofortification is a novel and promising solution for the bioavailability of nutrients to plants in order to address these problems. Biofortification is cost effective, feasible, and environmentally sustainable. Bio-fortified crops boost our immunity, which helps us to combat these deadly viruses. The studies we discussed in this review have demonstrated that they can aid in the alleviation of hidden hunger.
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Affiliation(s)
- G Monika
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai, India
| | - S Rhoda Melanie Kim
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; School of Engineering, Lebanese American University, Byblos, Lebanon
| | - K Veena Gayathri
- Department of Biotechnology, Stella Maris College (Autonomous), Chennai, India.
| | - Gayathri Rangasamy
- School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India.
| | - A Saravanan
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
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Chen C, Wu Y, Wang S, Liu Z, Wang G. Relationships between leaf δ 15 N and leaf metallic nutrients. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2021; 35:e8970. [PMID: 33047410 DOI: 10.1002/rcm.8970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Nitrogen (N) isotopic ratios (δ15 N values) of plants are primarily determined by the δ15 N values of their N sources. Metallic nutrients affect plant N uptake. However, there is little knowledge of the relationships between leaf δ15 N values and leaf metallic nutrients. The δ15 N values are often lower in soil nitrate (NO3 - ) than in ammonium (NH4 + ) due to large isotopic fractionation during nitrification. Plants acquire more NO3 - than NH4 + when accumulating high potassium (K), calcium (Ca) and magnesium (Mg) to maintain charge balance. In addition, plants that absorb more NO3 - than NH4 + increase the soil pH and decrease the availability of iron (Fe), manganese (Mn) and zinc (Zn). We therefore hypothesized that leaf δ15 N values correlate negatively with K, Ca and Mg contents, while positively with Fe, Mn and Zn contents. METHODS Leaves of non-N-fixing plants were sampled across an approx. 6000 km transect in China and their δ15 N values and metallic nutrient content were determined using elemental analyzer/isotope ratio mass spectrometry. RESULTS Inconsistent with the hypothesis, leaf δ15 N values correlated positively with leaf K, Ca and Mg, indicating higher δ15 N values of soil NO3 - than NH4 + . Higher δ15 N values of soil NO3 - revealed stronger denitrification than nitrification in the study regions because isotopic fractionation occurs during both processes. Leaf δ15 N values correlated negatively with Fe, relating to decreases in soil Fe availability, which might be attributed to oxidation of Fe2+ to Fe3+ supplying electrons for denitrification, while greater uptake of NO3 - than NH4 + of plants increases soil pH. Leaf δ15 N values correlated positively with Zn and did not correlate with Mn. These observed relationships between leaf δ15 N values and metallic nutrients, except Mn, were independent of vegetation or soil types. CONCLUSIONS This study has enriched our knowledge of associations between metallic nutrients and N cycling in plant-soil systems, especially for the roles of Fe in soil N transformations and K, Ca and Mg in plant N uptake.
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Affiliation(s)
- Chongjuan Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Yingjie Wu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhan Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhaotong Liu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Guoan Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Department of Environmental Sciences and Engineering, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
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Ecological Stoichiometry Homeostasis of Six Microelements in Leymus chinensis Growing in Soda Saline-Alkali Soil. SUSTAINABILITY 2020. [DOI: 10.3390/su12104226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Soil salinization poses severe threats to grassland ecosystems in various parts of the world, including the Songnen Plain in northeast China. Severe impairment of plant growth in this soil is generally attributed to high soil pH, total alkalinity, and sodium (Na) contents. This paper focuses on the ecological stoichiometry of microelements, which has received much less attention than relations of macroelements, in the soil and plants (specifically Leymus chinensis) growing in it. The results show that the soil’s manganese (Mn), zinc (Zn), iron (Fe), copper (Cu), nickel (Ni) and molybdenum (Mo) contents are lower than average in Chinese soils, but only Mn and Zn are severely deficient in L. chinensis. With increases in soil pH, total alkalinity, and Na, the Mo contents in both soil and L. chinensis slightly increase, while contents of the other microelements decline. Homeostasis indices obtained for the six microelements—and Fe/Zn, Fe/Ni, Fe/Cu, and Cu/Zn ratios—were all between 0.82 and 3.34 (ranging from just below the “plastic” threshold to “weakly homeostatic”). Despite Zn deficiency in the soil, Zn appears to have the highest homeostasis of the six elements in L. chinensis (homeostasis indices of Zn, Cu, Ni, Mn, Fe and Mo were 3.34, 2.54, 1.86, 1.76, 1.52, and 1.33, respectively). In addition, the Cu/Zn ratio had the highest homeostasis index (1.85), followed by Fe/Zn (1.02), Fe/Cu (0.95) and Fe/Ni (0.82). Appropriate application of Mn and Zn fertilizers is recommended to promote the growth and development of L. chinensis in soda saline-alkali soil.
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Jabeen N, Maqbool Q, Bibi T, Nazar M, Hussain SZ, Hussain T, Jan T, Ahmad I, Maaza M, Anwaar S. Optimised synthesis of ZnO-nano-fertiliser through green chemistry: boosted growth dynamics of economically important L. esculentum. IET Nanobiotechnol 2019; 12:405-411. [PMID: 29768221 DOI: 10.1049/iet-nbt.2017.0094] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mounting-up economic losses to annual crops yield due to micronutrient deficiency, fertiliser inefficiency and increasing microbial invasions (e.g. Xanthomonas cempestri attack on tomatoes) are needed to be solved via nano-biotechnology. So keeping this in view, the authors' current study presents the new horizon in the field of nano-fertiliser with highly nutritive and preservative effect of green fabricated zinc oxide-nanostructures (ZnO-NSs) during Lycopersicum esculentum (tomato) growth dynamics. ZnO-NS prepared via green chemistry possesses highly homogenous crystalline structures well-characterised through ultraviolet and visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscope. The ZnO-NS average size was found as small as 18 nm having a crystallite size of 5 nm. L. esculentum were grown in different concentrations of ZnO-NS to examine the different morphological parameters includes time of seed germination, germination percentage, the number of plant leaves, the height of the plant, average number of branches, days count for flowering and fruiting time period along with fruit quantity. Promising results clearly predict that bio-fabricated ZnO-NS at optimum concentration resulted as growth booster and dramatically triggered the plant yield.
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Affiliation(s)
- Nyla Jabeen
- Applied Biotechnology and Genetic Engineering Lab, Department of Bioinformatics and Biotechnology, International Islamic University Islamabad (IIUI), Islamabad 44000, Pakistan.
| | - Qaisar Maqbool
- National Institute of Vacuum Science and Technology (NINVAST), Islamabad 44000, Pakistan
| | - Tahira Bibi
- Applied Biotechnology and Genetic Engineering Lab, Department of Bioinformatics and Biotechnology, International Islamic University Islamabad (IIUI), Islamabad 44000, Pakistan
| | - Mudassar Nazar
- National Institute of Vacuum Science and Technology (NINVAST), Islamabad 44000, Pakistan
| | - Syed Z Hussain
- Department of Biological Sciences, Quaid-i-Azam University, Islamabad 44000, Pakistan
| | - Talib Hussain
- National Institute of Vacuum Science and Technology (NINVAST), Islamabad 44000, Pakistan
| | - Tariq Jan
- Department of Applied Sciences, National Textile University (NTU), Faisalabad, Pakistan
| | - Ishaq Ahmad
- Experimental Physics Directorate (EPD), National Center for Physics, Islamabad 44000, Pakistan
| | - Malik Maaza
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Pretoria, South Africa
| | - Sadaf Anwaar
- Applied Biotechnology and Genetic Engineering Lab, Department of Bioinformatics and Biotechnology, International Islamic University Islamabad (IIUI), Islamabad 44000, Pakistan
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Mongkhonsin B, Nakbanpote W, Hokura A, Nuengchamnong N, Maneechai S. Phenolic compounds responding to zinc and/or cadmium treatments in Gynura pseudochina (L.) DC. extracts and biomass. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 109:549-560. [PMID: 27837723 DOI: 10.1016/j.plaphy.2016.10.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Gynura pseudochina (L.) DC. is a Zn/Cd hyperaccumulative plant. In an in vivo system under controlled plant age, this research reveals that phenolic compounds and lignification play beneficial roles in protecting G. pseudochina from exposure to an excess of Zn and/or Cd, and Zn reduces Cd toxicity under the dual treatments. The total phenolic content (TPC), total flavonoid content (TFC), and half-maximal inhibitory concentration (IC50) values correspond to the metal dose-response curves. Liquid chromatography-electrospray ionization-quadrupole time of flight-tandem mass spectrometry (LC-ESI-QTOF-MS/MS) is used to characterize phenolic compounds and their glycosides, which could play roles in antioxidant activities and in the esterification of the cell wall, especially derivatives of p-coumaric and caffeic acid. Confocal laser scanning microscopy (CLSM) and micro X-ray fluorescence (μ-XRF) imaging revealed that the accumulation of Zn and Cd in the cell wall involves flavonoid compounds. Low extractable pools of Cd and Zn in the leaf extracts indicate that these elements are tightly bound to the plant biomass structures. The bulk X-ray absorption near edge structure (XANES) spectra indicate that Zn2+ and Cd2+ dominate with O and S ligands, which could be provided by cell walls, phenolic compounds, and sulphur protein. Consequently, the benefit of these results is to support the growth of G. pseudochina for phytoremediation in a Zn- and/or Cd-contaminated site.
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Affiliation(s)
- Bodin Mongkhonsin
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand
| | - Woranan Nakbanpote
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand.
| | - Akiko Hokura
- Department of Green and Sustainable Chemistry, Tokyo Denki University, Senju-Asahicho, Adachi, Tokyo, 120-8551, Japan
| | - Nitra Nuengchamnong
- Science Laboratory Centre, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Suthira Maneechai
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand
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Kaur K, Kaur M, Kaur A, Singh J, Singh N, Mittal SK, Kaur N. Polymer-based biocompatible fluorescent sensor for nano-molar detection of Zn2+ in aqueous medium and biological samples. Inorg Chem Front 2014. [DOI: 10.1039/c3qi00031a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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