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Tariq A, Ahmed A. Phosphate solubilization potential of PSB: an advance approach to enhance phosphorous availability for phytostimulation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:56174-56193. [PMID: 39256340 DOI: 10.1007/s11356-024-34934-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 09/04/2024] [Indexed: 09/12/2024]
Abstract
Rhizosphere engineering approach is considered a quantum leap in plant sciences. The current study focused on investigating rhizobacterial efficiency to mobilize bioavailable phosphate from insoluble-phosphate source. Four efficient phosphate-solubilizing bacterial isolates, i.e., Pseudomonas songnenensis (GR3), Stutzerimonas stutzeri (HH2), Bacillus bingmayongensis (KH3), and Achromobacter aegrifaciens (MH1) were selected for the current study. Interactions between various physiological parameters and phosphate solubilization efficiency of isolates revealed that glucose significantly facilitated phosphorus solubilization at 37 ℃, with media having pH 7 and 0.5% phosphorous. Additionally, positive correlation among P-solubilization potential, acids produced, and pH was observed. Plant microbe-interaction analysis was performed to evaluate the efficiency of these bacterial isolates on various morpho-physiological responses of Zea mays L. For this purpose, various concentrations of tricalcium phosphate (TCP) (0, 10, 20, 30, 40, and 50 mM) were applied to plants in the presence and absence of bacterial isolates. The results showed that lower phosphate levels (10 and 20 mM) trigger shoot development and improve plant weight and leaf formation whereas higher phosphate concentrations (30 mM and above) stimulated the development of longer root system. The bacterial isolates, KH3 and HH2, were observed as efficient phosphate-solubilizing bacteria (PSB) that positively stimulated various plant growth and biochemical attributes over untreated plants. At lower phosphate levels, substantial increase of 92, 65, and 200% in shoot length, fresh weight, and number of leaves was recorded with bacterial isolate HH2, whereas, at 30 mM TCP, increase of 165% was observed in root length of plants treated with bacterial isolate KH3 compared to control. Similarly, at lower phosphate levels, increment of 57.3, 76.7, and 217% in phosphate, protein, and auxin content was recorded in plants treated with bacterial isolate HH2, and increase of 188.8% in total soluble carbohydrates was observed in plants treated with bacterial isolate KH3 as compared to control. Contrarily, increment in total chlorophyll content was most substantial (207%) by the bacterial isolate KH3 when provided with 30 mM TCP. Hence, the current study reviled that the use of these phosphates (KH3 and HH2)-solubilizing PGPR, as an efficient phytostimulator used for crop production in the replacement of chemical fertilizers, is carcinogenic and deteriorating our eco-system.
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Affiliation(s)
- Aqsa Tariq
- Institute of Botany, University of the Punjab, Quaid-E-Azam Campus, Lahore, 54590, Pakistan
| | - Ambreen Ahmed
- Institute of Botany, University of the Punjab, Quaid-E-Azam Campus, Lahore, 54590, Pakistan.
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2
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Saikia J, Thakur D. A review on endophytic bacteria of orchids: functional roles toward synthesis of bioactive metabolites for plant growth promotion and disease biocontrol. PLANTA 2024; 260:70. [PMID: 39136763 DOI: 10.1007/s00425-024-04501-3] [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: 04/30/2024] [Accepted: 08/04/2024] [Indexed: 08/29/2024]
Abstract
MAIN CONCLUSION In this review, we have discussed the untapped potential of orchid endophytic bacteria as a valuable reservoir of bioactive metabolites, offering significant contributions to plant growth promotion and disease protection in the context of sustainable agriculture. Orchidaceae is one of the broadest and most diverse flowering plant families on Earth. Although the relationship between orchids and fungi is well documented, bacterial endophytes have recently gained attention for their roles in host development, vigor, and as sources of novel bioactive compounds. These endophytes establish mutualistic relationships with orchids, influencing plant growth, mineral solubilization, nitrogen fixation, and protection from environmental stress and phytopathogens. Current research on orchid-associated bacterial endophytes is limited, presenting significant opportunities to discover new species or genetic variants that improve host fitness and stress tolerance. The potential for extracting bioactive compounds from these bacteria is considerable, and optimization strategies for their sustainable production could significantly enhance their commercial utility. This review discusses the methods used in isolating and identifying endophytic bacteria from orchids, their diversity and significance in promoting orchid growth, and the production of bioactive compounds, with an emphasis on their potential applications in sustainable agriculture and other sectors.
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Affiliation(s)
- Juri Saikia
- Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST) (An Autonomous R&D Institute Under DST, Govt. of India), Garchuk, Paschim Boragaon, Guwahati, 781035, India
- Department of Biotechnology, Gauhati University, Guwahati, 781014, India
| | - Debajit Thakur
- Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology (IASST) (An Autonomous R&D Institute Under DST, Govt. of India), Garchuk, Paschim Boragaon, Guwahati, 781035, India.
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Murad S, Ahmad M, Hussain A, Ali S, Al-Ansari N, Mattar MA. Efficacy of DAP coated with bacterial strains and their metabolites for soil phosphorus availability and maize growth. Sci Rep 2024; 14:11389. [PMID: 38762518 PMCID: PMC11102545 DOI: 10.1038/s41598-024-61817-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/09/2024] [Indexed: 05/20/2024] Open
Abstract
Phosphorus (P) use efficiency in alkaline/calcareous soils is only 20% due to precipitation of P2O5 with calcium and magnesium. However, coating Diammonium Phosphate (DAP) with phosphorus solubilizing bacteria (PSB) is more appropriate to increase fertilizer use efficiency. Therefore, with the aim to use inorganic fertilizers more effectively present study was conducted to investigate comparative effect of coated DAP with PSB strains Bacillus subtilis ZE15 (MN003400), Bacillus subtilis ZR3 (MN007185), Bacillus megaterium ZE32 (MN003401) and Bacillus megaterium ZR19 (MN007186) and their extracted metabolites with uncoated DAP under axenic conditions. Gene sequencing was done against various sources of phosphorus to analyze genes responsible for phosphatase activity. Alkaline phosphatase (ALP) gene amplicon of 380bp from all tested strains was showed in 1% w/v gel. Release pattern of P was also improved with coated fertilizer. The results showed that coated phosphatic fertilizer enhanced shoot dry weight by 43 and 46% under bacterial and metabolites coating respectively. Shoot and root length up to 44 and 42% with metabolites coated DAP and 41% with bacterial coated DAP. Physiological attributes also showed significant improvement with coated DAP over conventional. The results supported the application of coated DAP as a useful medium to raise crop yield even at lower application rates i.e., 50 and 75% DAP than non-coated 100% DAP application which advocated this coating technique a promising approach for advancing circular economy and sustainable development in modern agriculture.
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Affiliation(s)
- Sadia Murad
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Maqshoof Ahmad
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Azhar Hussain
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Sajjad Ali
- Department of Entomology, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Nadhir Al-Ansari
- Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, 97187, Lulea, Sweden.
| | - Mohamed A Mattar
- Department of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia.
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Arshad MJ, Khan MI, Ali MH, Farooq Q, Hussain MI, Seleiman MF, Asghar MA. Enhanced wheat productivity in saline soil through the combined application of poultry manure and beneficial microbes. BMC PLANT BIOLOGY 2024; 24:423. [PMID: 38760709 PMCID: PMC11102207 DOI: 10.1186/s12870-024-05137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND Soil salinity is one of the major menaces to food security, particularly in dealing with the food demand of the ever-increasing global population. Production of cereal crops such as wheat is severely affected by soil salinity and improper fertilization. The present study aimed to examine the effect of selected microbes and poultry manure (PM) on seedling emergence, physiology, nutrient uptake, and growth of wheat in saline soil. A pot experiment was carried out in research area of Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan. Saline soil (12 dS m- 1 w/w) was developed by spiking using sodium chloride, and used in experiment along with two microbial strains (i.e., Alcaligenes faecalis MH-2 and Achromobacter denitrificans MH-6) and PM. Finally, wheat seeds (variety Akbar-2019) were sown in amended and unamended soil, and pots were placed following a completely randomized design. The wheat crop was harvested after 140 days of sowing. RESULTS The results showed a 10-39% increase (compared to non-saline control) in agronomic, physiological, and nutritive attributes of wheat plants when augmented with PM and microbes. Microbes together with PM significantly enhanced seedling emergence (up to 38%), agronomic (up to 36%), and physiological (up to 33%) in saline soil as compared to their respective unamended control. Moreover, the co-use of microbes and PM also improved soil's physicochemical attributes and enhanced N (i.e., 21.7%-17.1%), P (i.e., 24.1-29.3%), and K (i.e., 28.7%-25.3%) availability to the plant (roots and shoots, respectively). Similarly, the co-use of amendments also lowered the Na+ contents in soil (i.e., up to 62%) as compared to unamended saline control. This is the first study reporting the effects of the co-addition of newly identified salt-tolerant bacterial strains and PM on seedling emergence, physiology, nutrient uptake, and growth of wheat in highly saline soil. CONCLUSION Our findings suggest that co-using a multi-trait bacterial culture and PM could be an appropriate option for sustainable crop production in salt-affected soil.
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Affiliation(s)
- Muhammad Junaid Arshad
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Imran Khan
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
- Department of Isotope Biogeochemistry, Helmholtz- Center for Environmental Research- UFZ, Leipzig, Germany.
| | - Muhammad Hayder Ali
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Qammar Farooq
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | | | - Mahmoud F Seleiman
- Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Muhammad Ahsan Asghar
- Department of Biological Resources, Agricultural Institute, Centre for Agricultural Research, ELKH, Brunzvik St, Martonvásár, 2462, Hungary
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Bakki M, Banane B, Marhane O, Esmaeel Q, Hatimi A, Barka EA, Azim K, Bouizgarne B. Phosphate solubilizing Pseudomonas and Bacillus combined with rock phosphates promoting tomato growth and reducing bacterial canker disease. Front Microbiol 2024; 15:1289466. [PMID: 38765677 PMCID: PMC11100333 DOI: 10.3389/fmicb.2024.1289466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 02/26/2024] [Indexed: 05/22/2024] Open
Abstract
Nowadays, sustainable agriculture approaches are based on the use of biofertilizers and biopesticides. Tomato (Solanum lycopersicum L.) rhizosphere could provide rhizobacteria with biofertilizing and biopesticide properties. In this study, bacteria from the rhizosphere of tomato were evaluated in vitro for plant growth promotion (PGP) properties. Five Pseudomonas isolates (PsT-04c, PsT-94s, PsT-116, PsT-124, and PsT-130) and one Bacillus isolate (BaT-68s), with the highest ability to solubilize tricalcium phosphate (TCP) were selected for further molecular identification and characterization. Isolates showed phosphate solubilization up to 195.42 μg mL-1. All isolates showed phosphate solubilization by organic acid production. The six isolates improved seed germination and showed effective root colonization when tomato seeds were coated with isolates at 106 cfu g-1 in axenic soil conditions. Furthermore, the selected isolates were tested for beneficial effects on tomato growth and nutrient status in greenhouse experiments with natural rock phosphate (RP). The results showed that inoculated tomato plants in the presence of RP have a higher shoot and root lengths and weights compared with the control. After 60 days, significant increases in plant Ca, Na, P, protein, and sugar contents were also observed in inoculated seedlings. In addition, inoculated tomato seedlings showed an increase in foliar chlorophyll a and b and total chlorophyll, while no significant changes were observed in chlorophyll fluorescence. In greenhouse, two Pseudomonas isolates, PsT-04c and PsT-130, showed ability to trigger induced systemic resistance in inoculated tomato seedlings when subsequently challenged by Clavibacter michiganensis subsp. michiganensis, the causal agent of tomato bacterial canker. High protection rate (75%) was concomitant to an increase in the resistance indicators: total soluble phenolic compounds, phenylalanine-ammonia lyase, and H2O2. The results strongly demonstrated the effectiveness of phosphate-solubilizing bacteria adapted to rhizosphere as biofertilizers for tomato crops and biopesticides by inducing systemic resistance to the causal agent of tomato bacterial canker disease.
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Affiliation(s)
- Mohamed Bakki
- Laboratory of Plant Biotechnology “Biotechnologies Végétales”, Faculty of Sciences, University Ibn Zohr (UIZ), Agadir, Morocco
| | - Badra Banane
- Laboratory of Plant Biotechnology “Biotechnologies Végétales”, Faculty of Sciences, University Ibn Zohr (UIZ), Agadir, Morocco
| | - Omaima Marhane
- Laboratory of Plant Biotechnology “Biotechnologies Végétales”, Faculty of Sciences, University Ibn Zohr (UIZ), Agadir, Morocco
| | - Qassim Esmaeel
- Unité de Recherche Résistance Induite et Bio Protection des Plantes, EA 4707 – USC INRAe1488, UFR Sciences Exactes et Naturelles, Moulin de la Housse, University of Reims Champagne-Ardenne, Reims, France
| | - Abdelhakim Hatimi
- Laboratory of Plant Biotechnology “Biotechnologies Végétales”, Faculty of Sciences, University Ibn Zohr (UIZ), Agadir, Morocco
| | - Essaid Ait Barka
- Unité de Recherche Résistance Induite et Bio Protection des Plantes, EA 4707 – USC INRAe1488, UFR Sciences Exactes et Naturelles, Moulin de la Housse, University of Reims Champagne-Ardenne, Reims, France
| | - Khalid Azim
- Integrated Crop Production Research Unit, Regional Center of Agricultural Research of Agadir, National Institute of Agricultural Research, Rabat, Morocco
| | - Brahim Bouizgarne
- Laboratory of Plant Biotechnology “Biotechnologies Végétales”, Faculty of Sciences, University Ibn Zohr (UIZ), Agadir, Morocco
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Wen Z, Yang M, Fazal A, Han H, Lin H, Yin T, Zhu Y, Yang S, Niu K, Sun S, Qi J, Lu G, Yang Y. Harnessing the power of microbes: Enhancing soybean growth in an acidic soil through AMF inoculation rather than P-fertilization. HORTICULTURE RESEARCH 2024; 11:uhae067. [PMID: 38725460 PMCID: PMC11079484 DOI: 10.1093/hr/uhae067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 02/23/2024] [Indexed: 05/12/2024]
Abstract
The low phosphorus (P) availability of acidic soils severely limits leguminous plant growth and productivity. Improving the soil P nutritional status can be achieved by increasing the P-content through P-fertilization or stimulating the mineralization of organic P via arbuscular mycorrhizal fungi (AMF) application; however, their corresponding impacts on plant and soil microbiome still remain to be explored. Here, we examined the effects of AMF-inoculation and P-fertilization on the growth of soybean with different P-efficiencies, as well as the composition of rhizo-microbiome in an acidic soil. The growth of recipient soybean NY-1001, which has a lower P-efficiency, was not significantly enhanced by AMF-inoculation or P-fertilization. However, the plant biomass of higher P-efficiency transgenic soybean PT6 was significantly increased by 46.74%-65.22% through AMF-inoculation. Although there was no discernible difference in plant biomass between PT6 and NY-1001 in the absence of AMF-inoculation and P-fertilization, PT6 had approximately 1.9-2.5 times the plant biomass of NY-1001 after AMF-inoculation. Therefore, the growth advantage of higher P-efficiency soybean was achieved through the assistance of AMF rather than P-fertilization in available P-deficient acidic soil. Most nitrogen (N)-fixing bacteria and some functional genes related to N-fixation were abundant in endospheric layer, as were the P-solubilizing Pseudomonas plecoglossicida, and annotated P-metabolism genes. These N-fixing and P-solubilizing bacteria were positive correlated with each other. Lastly, the two most abundant phytopathogenic fungi species accumulated in endospheric layer, they exhibited positive correlations with N-fixing bacteria, but displayed negative interactions with the majority of the other dominant non-pathogenic genera with potential antagonistic activity.
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Affiliation(s)
- Zhongling Wen
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Minkai Yang
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Aliya Fazal
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Hongwei Han
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- School of Life Sciences and Chemical Engineering, Jiangsu Second Normal University, Nanjing 210013, China
| | - Hongyan Lin
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Tongming Yin
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Yuelin Zhu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Shouping Yang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Kechang Niu
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Shucun Sun
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Jinliang Qi
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Guihua Lu
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huai’an 223300, China
| | - Yonghua Yang
- Institute for Plant Molecular Biology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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Gill S, Ramzan M, Naz G, Ali L, Danish S, Ansari MJ, Salmen SH. Effect of silicon nanoparticle-based biochar on wheat growth, antioxidants and nutrients concentration under salinity stress. Sci Rep 2024; 14:6380. [PMID: 38493184 PMCID: PMC10944501 DOI: 10.1038/s41598-024-55924-7] [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: 11/05/2023] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Globally, salinity is an important abiotic stress in agriculture. It induced oxidative stress and nutritional imbalance in plants, resulting in poor crop productivity. Applying silicon (Si) can improve the uptake of macronutrients. On the other hand, using biochar as a soil amendment can also decrease salinity stress due to its high porosity, cation exchange capacity, and water-holding capacity. That's why the current experiment was conducted with novelty to explore the impact of silicon nanoparticle-based biochar (Si-BC) on wheat cultivated on salt-affected soil. There were 3 levels of Si-BC, i.e., control (0), 1% Si-BC1, and 2.5% Si-BC2 applied in 3 replicates under 0 and 200 mM NaCl following a completely randomized design. Results showed that treatment 2.5% Si-BC2 performed significantly better for the enhancement in shoot and root length, shoot and root fresh weight, shoot and root dry weight, number of leaves, number of tillers, number of spikelets, spike length, spike fresh and dry weight compared to control under no stress and salinity stress (200 mM NaCl). A significant enhancement in chlorophyll a (~ 18%), chlorophyll b (~ 22%), total chlorophyll (~ 20%), carotenoid (~ 60%), relative water contents (~ 58%) also signified the effectiveness of treatment 2.5% Si-BC2 than control under 200 mM NaCl. In conclusion, treatment 2.5% Si-BC2 can potentially mitigate the salinity stress in wheat by regulating antioxidants and improving N, K concentration, and gas exchange attributes while decreasing Na and Cl concentration and electrolyte leakage. More investigations at the field level are recommended for the declaration of treatment 2.5% Si-BC2 as the best amendment for alleviating salinity stress in different crops under variable climatic conditions.
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Affiliation(s)
- Sidra Gill
- Department of Botany, Faculty of Chemical and Biological Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Musarrat Ramzan
- Department of Botany, Faculty of Chemical and Biological Sciences, The Islamia University of Bahawalpur, Bahawalpur, Pakistan.
| | - Gul Naz
- Institute of Physics, Faculty of Physics and Mathematics, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Liaqat Ali
- Cholistan Institute of Desert Studies, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, Pakistan.
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (MJP Rohilkhand University Bareilly), Moradabad, India, 244001
| | - Saleh H Salmen
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box 2455, 11451, Riyadh, Saudi Arabia
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8
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Yadav N, Kumar A, Sawariya M, Kumar N, Mehra H, Kumar S, Kaur V, Arya SS. Effect of GA 3 and calcium on growth, biochemical, and fatty acid composition of linseed under chloride-dominated salinity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16958-16971. [PMID: 38326686 DOI: 10.1007/s11356-024-32325-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
The accumulation of salts in soil is an environmental threat affecting plant growth and crop yield. Linseed or flax is an ancient crop that has multifarious utilities in terms of industrial oil, textile fiber, and products. Salt susceptibility adversely affects linseed production, particularly to meet the growing demand for nutritional and nutraceutical products. In the present study, the ameliorative potential of gibberellic acid (GA3) and calcium (Ca2+) in mitigating the adverse effects of chloride-dominated salinity stress on the growth and physiological and biochemical processes in linseed was determined. Severe salinity treatment (10 dSm-1) resulted in stunted growth of tested linseed genotypes causing a significant reduction in biomass while proline content, phenol, H2O2, lipid peroxidation, and DPPH activity were increased in comparison to control. The exogenous application of 10-6 M GA3 and/or 10 mg CaCl2 kg-1 was found to mitigate the adverse effects of salinity stress. The mitigation was accomplished through the improvement of growth indicators, increased osmoprotectants such as proline and phenol content, stimulating DPPH activity, and reduction of H2O2 content and lipid peroxidation. The comparative evaluation of different saline treatments imposed individually and in combination with GA3 and Ca2+ revealed that combined GA3 and Ca2+ application exhibited synergistic effects and was most effective in mitigating the negative impacts of salt stress. The present study unravels the ameliorative role of GA3 and Ca2+ (individual or combined) in the physiologic-biochemical adaptive response of linseed plants grown under chloride-dominated salinity and thus aids in a better understanding of the underlying tolerance mechanisms of plants to withstand stress in saline environments.
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Affiliation(s)
- Neha Yadav
- Department of Botany, Maharshi Dayanand University, Rohtak, India
| | - Ajay Kumar
- Department of Botany, Maharshi Dayanand University, Rohtak, India
| | - Mamta Sawariya
- Department of Botany, Maharshi Dayanand University, Rohtak, India
| | - Naveen Kumar
- Department of Botany, Maharshi Dayanand University, Rohtak, India
| | - Himanshu Mehra
- Department of Botany, Maharshi Dayanand University, Rohtak, India
| | - Sunil Kumar
- Department of Environmental Science, Maharshi Dayanand University, Rohtak, India
| | - Vikender Kaur
- ICAR-National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi, India
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9
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Valencia-Marin MF, Chávez-Avila S, Guzmán-Guzmán P, Orozco-Mosqueda MDC, de Los Santos-Villalobos S, Glick BR, Santoyo G. Survival strategies of Bacillus spp. in saline soils: Key factors to promote plant growth and health. Biotechnol Adv 2024; 70:108303. [PMID: 38128850 DOI: 10.1016/j.biotechadv.2023.108303] [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: 08/16/2023] [Revised: 11/16/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
Soil salinity is one of the most important abiotic factors that affects agricultural production worldwide. Because of saline stress, plants face physiological changes that have negative impacts on the various stages of their development, so the employment of plant growth-promoting bacteria (PGPB) is one effective means to reduce such toxic effects. Bacteria of the Bacillus genus are excellent PGPB and have been extensively studied, but what traits makes them so extraordinary to adapt and survive under harsh situations? In this work we review the Bacillus' innate abilities to survive in saline stressful soils, such as the production osmoprotectant compounds, antioxidant enzymes, exopolysaccharides, and the modification of their membrane lipids. Other survival abilities are also discussed, such as sporulation or a reduced growth state under the scope of a functional interaction in the rhizosphere. Thus, the most recent evidence shows that these saline adaptive activities are important in plant-associated bacteria to potentially protect, direct and indirect plant growth-stimulating activities. Additionally, recent advances on the mechanisms used by Bacillus spp. to improve the growth of plants under saline stress are addressed, including genomic and transcriptomic explorations. Finally, characterization and selection of Bacillus strains with efficient survival strategies are key factors in ameliorating saline problems in agricultural production.
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Affiliation(s)
- María F Valencia-Marin
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich. 58030, Mexico
| | - Salvador Chávez-Avila
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich. 58030, Mexico
| | - Paulina Guzmán-Guzmán
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich. 58030, Mexico
| | - Ma Del Carmen Orozco-Mosqueda
- Departamento de Ingeniería Bioquímica y Ambiental, Tecnológico Nacional de México en Celaya, 38010 Celaya, Gto, Mexico
| | | | - Bernard R Glick
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Gustavo Santoyo
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mich. 58030, Mexico.
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10
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Chen Z, Guo Z, Zhou L, Xu H, Liu C, Yan X. Advances in Identifying the Mechanisms by Which Microorganisms Improve Barley Salt Tolerance. Life (Basel) 2023; 14:6. [PMID: 38276255 PMCID: PMC10817418 DOI: 10.3390/life14010006] [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: 11/16/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
As the global human population continues to increase, the use of saline-alkali land for food production is an important consideration for food security. In addition to breeding or cultivating salt-tolerant crop varieties, microorganisms are increasingly being evaluated for their ability to improve plant salt tolerance. Barley is one of the most important and salt-tolerant cereal crops and is a model system for investigating the roles of microorganisms in improving plant salt tolerance. However, a comprehensive review of the mechanisms by which microorganisms improve barley salt tolerance remains lacking. In this review, the mechanisms of barley salt tolerance improvement by microorganisms are summarized, along with a discussion of existing problems in current research and areas of future research directions. In particular, with the development of sequencing technology and the great reduction of prices, the use of omics can not only comprehensively evaluate the role of microorganisms but also evaluate the impact of the microbiome on plants, which will provide us with many opportunities and challenges in this research area.
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Affiliation(s)
- Zhiwei Chen
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Z.G.); (L.Z.); (H.X.); (C.L.)
| | - Zhenzhu Guo
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Z.G.); (L.Z.); (H.X.); (C.L.)
| | - Longhua Zhou
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Z.G.); (L.Z.); (H.X.); (C.L.)
| | - Hongwei Xu
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Z.G.); (L.Z.); (H.X.); (C.L.)
| | - Chenghong Liu
- Shanghai Key Laboratory of Agricultural Genetics and Breeding, Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (Z.G.); (L.Z.); (H.X.); (C.L.)
| | - Xin Yan
- Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
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11
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Timofeeva AM, Galyamova MR, Sedykh SE. Plant Growth-Promoting Soil Bacteria: Nitrogen Fixation, Phosphate Solubilization, Siderophore Production, and Other Biological Activities. PLANTS (BASEL, SWITZERLAND) 2023; 12:4074. [PMID: 38140401 PMCID: PMC10748132 DOI: 10.3390/plants12244074] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/04/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023]
Abstract
This review covers the literature data on plant growth-promoting bacteria in soil, which can fix atmospheric nitrogen, solubilize phosphates, produce and secrete siderophores, and may exhibit several different behaviors simultaneously. We discuss perspectives for creating bacterial consortia and introducing them into the soil to increase crop productivity in agrosystems. The application of rhizosphere bacteria-which are capable of fixing nitrogen, solubilizing organic and inorganic phosphates, and secreting siderophores, as well as their consortia-has been demonstrated to meet the objectives of sustainable agriculture, such as increasing soil fertility and crop yields. The combining of plant growth-promoting bacteria with mineral fertilizers is a crucial trend that allows for a reduction in fertilizer use and is beneficial for crop production.
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Affiliation(s)
- Anna M. Timofeeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia;
| | - Maria R. Galyamova
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia;
| | - Sergey E. Sedykh
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia;
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12
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Wang J, Zhang C, Li H, Xu Y, Zhang B, Zheng F, Zhao B, Zhang H, Zhao H, Liu B, Xiao M, Zhang Z. OsJAB1 Positively Regulates Ascorbate Biosynthesis and Negatively Regulates Salt Tolerance Due to Inhibiting Early-Stage Salt-Induced ROS Accumulation in Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:3859. [PMID: 38005759 PMCID: PMC10675544 DOI: 10.3390/plants12223859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
Reactive oxygen species (ROS) play dual roles in plant stress response, but how plants modulate the dual roles of ROS in stress response is still obscure. OsJAB1 (JUN-activation-domain-binding protein 1) encodes the rice CSN5 (COP9 signalsome subunit 5). This study showed that, similar to the Arabidopsis homolog gene CSN5B, OsJAB1-overexpressing (driven by a CaMV 35S promoter) plants (OEs) impaired rice salt stress tolerance; in contrast, OsJAB1-inhibited-expression (using RNA-interfering technology) plants (RIs) enhanced rice salt stress tolerance. Differing from CSN5B that negatively regulated ascorbate (Asc) biosynthesis, Asc content increased in OEs and decreased in RIs. ROS analysis showed that RIs clearly increased, but OEs inhibited ROS accumulation at the early stage of salt treatment; in contrast, RIs clearly decreased, but OEs promoted ROS accumulation at the late stage of salt treatment. The qPCR revealed that OEs decreased but RIs enhanced the expressions of ROS-scavenging genes. This indicated that OsJAB1 negatively regulated rice salt stress tolerance by suppressing the expression of ROS-scavenging genes. This study provided new insights into the CSN5 homologous protein named OsJAB1 in rice, which developed different functions during long-term evolution. How OsJAB1 regulates the Asc biosynthesis that coordinates the balance between cell redox signaling and ROS scavenging needs to be investigated in the future.
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Affiliation(s)
- Jiayi Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
| | - Chuanyu Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
| | - Hua Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
| | - Yuejun Xu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Sanya 571763, China
| | - Bo Zhang
- Biotechnology Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China; (B.Z.); (F.Z.); (B.Z.); (B.L.)
| | - Fuyu Zheng
- Biotechnology Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China; (B.Z.); (F.Z.); (B.Z.); (B.L.)
| | - Beiping Zhao
- Biotechnology Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China; (B.Z.); (F.Z.); (B.Z.); (B.L.)
| | - Haiwen Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
| | - Hui Zhao
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China;
| | - Baohai Liu
- Biotechnology Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China; (B.Z.); (F.Z.); (B.Z.); (B.L.)
| | - Minggang Xiao
- Biotechnology Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150028, China; (B.Z.); (F.Z.); (B.Z.); (B.L.)
| | - Zhijin Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (J.W.); (C.Z.); (H.L.); (Y.X.); (H.Z.)
- National Key Facility of Crop Gene Resources and Genetic Improvement, Sanya 571763, China
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13
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Youssef SM, Shaaban A, Abdelkhalik A, Abd El Tawwab AR, Abd Al Halim LR, Rabee LA, Alwutayd KM, Ahmed RMM, Alwutayd R, Hemida KA. Compost and Phosphorus/Potassium-Solubilizing Fungus Effectively Boosted Quinoa's Physio-Biochemical Traits, Nutrient Acquisition, Soil Microbial Community, and Yield and Quality in Normal and Calcareous Soils. PLANTS (BASEL, SWITZERLAND) 2023; 12:3071. [PMID: 37687318 PMCID: PMC10489913 DOI: 10.3390/plants12173071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/12/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
Calcareous soil had sufficient phosphorus and potassium (PK) in different forms due to the high contents of PK-bearing minerals; however, the available PK state was reduced due to its PK-fixation capacity. Compost, coupled with high PK solubilization capacity microbes, is a sustainable solution for bioorganic fertilization of plants grown in calcareous soil. A 2-year field experiment was conducted to investigate the effect of compost (20 t ha-1) with Aspergillus niger through soil drenching (C-AN) along with partial substitution of PK fertilization on quinoa performance in normal and calcareous soils. Treatments included PK100% (72 kg P2O5 ha-1 + 60 kg K2O ha-1 as conventional rate), PK100%+C-AN, PK75%+C-AN, PK50%+C-AN, PK25%+C-AN, and only C-AN in normal and calcareous soils. Results showed that C-AN and reduced PK fertilization (up to 75 or 50%) increased photosynthetic pigments and promoted nutrient acquisition in quinoa grown in calcareous soil. Reduced PK fertilization to 75 or 50% plus C-AN in calcareous soil increased osmoprotectants, nonenzymatic antioxidants, and DPPH scavenging activity of quinoa's leaves compared to the PK0%+C-AN treatment. The integrative application of high PK levels and C-AN enhanced the quinoa's seed nutritional quality (i.e., lipids, carbohydrates, mineral contents, total phenolics, total flavonoids, half maximal inhibitory concentration, and antiradical power) in calcareous soil. At reduced PK fertilization (up to 75 or 50%), application of compost with Aspergillus niger through soil drenching increased plant dry weight by 38.7 or 53.2%, hectoliter weight by 3.0 or 2.4%, seed yield by 49.1 or 39.5%, and biological yield by 43.4 or 33.6%, respectively, compared to PK0%+C-AN in calcareous soil. The highest P-solubilizing microorganism's population was found at PK0%+C-AN in calcareous soil, while the highest Azotobacter sp. population was observed under high PK levels + C-AN in normal soil. Our study recommends that compost with Aspergillus niger as a bioorganic fertilization treatment can partially substitute PK fertilization and boost quinoa's tolerance to salt calcareous-affected soil.
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Affiliation(s)
- Samah M. Youssef
- Horticulture Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt; (S.M.Y.); (A.A.)
| | - Ahmed Shaaban
- Agronomy Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt
| | - Abdelsattar Abdelkhalik
- Horticulture Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt; (S.M.Y.); (A.A.)
| | - Ahmed R. Abd El Tawwab
- Soil and Water Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt; (A.R.A.E.T.); (R.M.M.A.)
| | - Laila R. Abd Al Halim
- Agricultural Microbiology Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt;
| | - Laila A. Rabee
- Department of Food Science and Technology, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt;
| | - Khairiah Mubarak Alwutayd
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Reda M. M. Ahmed
- Soil and Water Department, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt; (A.R.A.E.T.); (R.M.M.A.)
| | - Rahaf Alwutayd
- Department of Information Technology, College of Computer and Information Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Khaulood A. Hemida
- Botany Department, Faculty of Science, Fayoum University, Fayoum 63514, Egypt;
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14
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Li L, Du L, Cao Q, Yang Z, Liu Y, Yang H, Duan X, Meng Z. Salt Tolerance Evaluation of Cucumber Germplasm under Sodium Chloride Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:2927. [PMID: 37631139 PMCID: PMC10459999 DOI: 10.3390/plants12162927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/29/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Cucumber (Cucumis sativus L.) is an important horticultural crop worldwide. Sodium (Na+) and chloride (Cl-) in the surface soil are the major limiting factors in coastal areas of Shandong Province in China. Therefore, to understand the mechanism used by cucumber to adapt to sodium chloride (NaCl), we analyzed the phenotypic and physiological indicators of eighteen cucumber germplasms after three days under 100 and 150 mM NaCl treatment. A cluster analysis revealed that eighteen germplasms could be divided into five groups based on their physiological indicators. The first three groups consisted of seven salt-tolerant and medium salt-tolerant germplasms, including HLT1128h, Zhenni, and MC2065. The two remaining groups consisted of five medium salt-sensitive germplasms, including DM26h and M1-2-h-10, and six salt-sensitive germplasms including M1XT and 228. A principal component analysis revealed that the trend of comprehensive scores was consistent with the segmental cluster analysis and survival rates of cucumber seedlings. Overall, the phenotype, comprehensive survival rate, cluster analysis, and principal component analysis revealed that the salt-tolerant and salt-sensitive germplasms were Zhenni, F11-15, MC2065, M1XT, M1-2-h-10, and DM26h. The results of this study will provide references to identify or screen salt-tolerant cucumber germplasms and lay a foundation for breeding salt-tolerant cucumber varieties.
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Affiliation(s)
- Libin Li
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Lianda Du
- College of Horticulture Science and Engineering, Shandong Agricultural University, Taian 271018, China
| | - Qiwei Cao
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Zonghui Yang
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
| | - Yihan Liu
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Hua Yang
- College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Xi Duan
- College of Agricultural Science and Technology, Shandong Agriculture and Engineering University, Jinan 250100, China
| | - Zhaojuan Meng
- Key Laboratory of Greenhouse Vegetable Biology of Shandong Province, Vegetable Science Observation and Experiment Station in Huang—Huai Region of Ministry of Agriculture (Shandong), Shandong Branch of National Vegetable Improvement Center, Vegetable Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China (Q.C.)
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15
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Zuluaga MYA, de Oliveira ALM, Valentinuzzi F, Jayme NS, Monterisi S, Fattorini R, Cesco S, Pii Y. An insight into the role of the organic acids produced by Enterobacter sp. strain 15S in solubilizing tricalcium phosphate: in situ study on cucumber. BMC Microbiol 2023; 23:184. [PMID: 37438698 DOI: 10.1186/s12866-023-02918-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND The release of organic acids (OAs) is considered the main mechanism used by phosphate-solubilizing bacteria (PSB) to dissolve inorganic phosphate in soil. Nevertheless, little is known about the effect of individual OAs produced by a particular PSB in a soil-plant system. For these reasons, the present work aimed at investigating the effect of Enterobacter sp. strain 15S and the exogenous application of its OAs on (i) the solubilization of tricalcium phosphate (TCP), (ii) plant growth and (iii) P nutrition of cucumber. To this purpose two independent experiments have been performed. RESULTS In the first experiment, carried out in vitro, the phosphate solubilizing activity of Enterobacter 15S was associated with the release of citric, fumaric, ketoglutaric, malic, and oxalic acids. In the second experiment, cucumber plants were grown in a Leonard jar system consisting of a nutrient solution supplemented with the OAs previously identified in Enterobacter 15S (jar's base) and a substrate supplemented with the insoluble TCP where cucumber plants were grown (jar's top). The use of Enterobacter 15S and its secreted OAs proved to be efficient in the in situ TCP solubilization. In particular, the enhancement of the morpho-physiological traits of P-starved cucumber plants was evident when treated with Enterobacter 15S, oxalate, or citrate. The highest accumulation of P in roots and shoots induced by such treatments further corroborated this hypothesis. CONCLUSION In our study, the results presented suggest that organic acids released by Enterobacter 15S as well as the bacterium itself can enhance the P-acquisition by cucumber plants.
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Affiliation(s)
- Mónica Yorlady Alzate Zuluaga
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy.
| | | | - Fabio Valentinuzzi
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy
| | - Nádia Souza Jayme
- Department of Biochemistry and Biotechnology, State University of Londrina, Londrina, Paraná, Brazil
| | - Sonia Monterisi
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy
| | - Roberto Fattorini
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy
| | - Stefano Cesco
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy
| | - Youry Pii
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bolzano, Piazza Università 5, Bolzano, 39100, Italy.
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16
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Yadav A, Boruah JLH, Geed SR, Sharma RK, Saikia R. Occurrence, identification and characterization of diazotrophic bacteria from aerial roots of Rhynchostylis retusa (L.) Blume for plant growth-promoting activity. Arch Microbiol 2023; 205:131. [PMID: 36947279 DOI: 10.1007/s00203-023-03458-3] [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: 11/12/2022] [Revised: 02/17/2023] [Accepted: 03/01/2023] [Indexed: 03/23/2023]
Abstract
In this study, the diversity of diazotrophic bacteria of orchid Rhynchostylis retusa (L.) Blume and its potential application in plant growth promotion were evaluated. About 183 nitrogen-fixing bacteria were isolated to screen various plant growth-promoting traits viz. phosphate solubilization,IAA, siderophore, HCN, biofilm and ammonia production. Based on 16S rRNA gene sequencing analysis Achromobacter, Arthrobacter, Acinetobacter, Bacillus, Brevibacterium, Curtobacterium, Erwinia, Kosakonia, Lysinibacillus, Klebseilla, Microbacterium, Mixta, Pantoea, Pseudomonas and Stenotrophomonas isolates were selected and showed positive results for PGP traits. Overall, genus Pantoea, Brevibacterium, Achromobacter, Arthrobacter, Klebsiella, Mixta, Bacillus, and Pseudomonas had the most pronounced PGP characteristics and acetylene reduction among the screened isolates. BOX PCR fingerprinting analysis showed variation in polymorphic banding patterns among diazotrophic strains. PCR amplification of nifH gene and the presence of 37 kDa nitrogenase reductase enzyme band in western blot indicated presence of nitrogenase activity. Our study showed that orchid R. retusa diazotroph interaction helps orchid plant to fix nitrogen, essential nutrients, and control pathogen entry. To the best of our knowledge, this is the first report on characterization of diazotrophic bacterial community from aerial roots of R. retusa.
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Affiliation(s)
- Archana Yadav
- Microbial Biotechnology Laboratory, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India.
- Department of Applied Biology, University of Science and Technology, Baridua, Meghalaya, India.
| | - Jyoti Lakshmi Hati Boruah
- Microbial Biotechnology Laboratory, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India
| | - Sachin Rameshrao Geed
- Microbial Biotechnology Laboratory, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India
| | - Rabin K Sharma
- Department of Applied Biology, University of Science and Technology, Baridua, Meghalaya, India
| | - Ratul Saikia
- Microbial Biotechnology Laboratory, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India
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17
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Iqbal A, Qiang D, Xiangru W, Huiping G, Hengheng Z, Xiling Z, Meizhen S. Integrative physiological, transcriptome and metabolome analysis reveals the involvement of carbon and flavonoid biosynthesis in low phosphorus tolerance in cotton. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 196:302-317. [PMID: 36738510 DOI: 10.1016/j.plaphy.2023.01.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Phosphorus (P) is an essential nutrient controlling plant growth and development through the regulation of basic metabolic processes; however, the molecular details of these pathways remain largely unknown. In this study, physiological, transcriptome, and metabolome analysis were compared for two cotton genotypes with different low P tolerance under P starvation and resupply. The results showed that the glucose, fructose, sucrose, and starch contents increased by 18.2%, 20.4%, 20.2%, and 14.3% in the roots and 18.3%, 23.3%, 11.0%, and 13.6% in the shoot of Jimian169 than DES926, respectively. Moreover, the activities of enzymes related to carbon and phosphorus metabolism were higher in the roots and shoots of Jimian169 than DES926. In addition, transcriptome analysis revealed that the number of differentially expressed genes (DEGs) was higher in both roots (830) and shoots (730) under P starvation and the DEGs drastically reduced upon P resupply. The KEGG analysis indicated that DEGs were mainly enriched in phenylpropanoid biosynthesis, carbon metabolism, and photosynthesis. The metabolome analysis showed the enrichment of phenylpropanoid, organic acids and derivatives, and lipids in all the pairs at a given time point. The combined transcriptome and metabolome analysis revealed that carbon metabolism and flavonoid biosynthesis are involved in the P starvation response in cotton. Moreover, co-expression network analysis identified 3 hub genes in the roots and shoots that regulate the pathways involved in the P starvation response. This study provides the foundation for understanding the mechanisms of low P tolerance and the hub genes as a potential target for the development of low P tolerant genotypes.
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Affiliation(s)
- Asif Iqbal
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China
| | - Dong Qiang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China
| | - Wang Xiangru
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China; Western Agricultural Research Center of Chinese Academy of Agricultural Sciences, Changji, 831100, Xinjiang, PR China
| | - Gui Huiping
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China
| | - Zhang Hengheng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China
| | - Zhang Xiling
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China; Western Agricultural Research Center of Chinese Academy of Agricultural Sciences, Changji, 831100, Xinjiang, PR China.
| | - Song Meizhen
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Sciences, Zhengzhou Research Base, School of Agricultural Sciences, Zhengzhou University, Anyang, Henan, 455000, PR China; Western Agricultural Research Center of Chinese Academy of Agricultural Sciences, Changji, 831100, Xinjiang, PR China.
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18
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Phosphate-Solubilizing Capacity of Paecilomyces lilacinus PSF7 and Optimization Using Response Surface Methodology. Microorganisms 2023; 11:microorganisms11020454. [PMID: 36838419 PMCID: PMC9962588 DOI: 10.3390/microorganisms11020454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Phosphorus-solubilizing microorganisms release organic acids that can chelate mineral ions or reduce the pH to solubilize insoluble phosphates for use by plants; it is important to study potential phosphorus-solubilizing microorganisms for use in agriculture. In this study, PSF7 was isolated from the soil of the Wengfu Phosphorus Tailings Dump in Fuquan City, Guizhou Province, China. PSF7 was identified as Paecilomyces lilacinus, based on morphological characterization and ITS sequencing analysis. The relationship between the phosphorus-solubilizing capacity and pH variation of PSF7 under liquid fermentation was studied. The results showed that there was a significant negative correlation (-0.784) between the soluble phosphorus content of PSF7 and the pH value. When PSF7 was placed under low phosphorus stress, eight organic acids were determined from fermentation broth using HPLC, of which tartaric acid and formic acid were the main organic acids. Different optimization parameters of medium components were analyzed using response surface methodology. The optimized medium components were 23.50 g/L sucrose, 1.64 g/L ammonium sulfate and soybean residue, 1.07 g/L inorganic salts, and 9.16 g/L tricalcium phosphate, with a predicted soluble phosphorus content of 123.89 mg/L. Under the optimum medium composition, the actual phosphorus-solubilizing content of PSF7 reached 122.17 mg/L. Moreover, scanning electron microscopy analysis of the sample was carried out to characterize the phosphate-solubilizing efficiency of PSF7 on mineral phosphate. The results provide useful information for the future application of PSF7 as a biological fertilizer.
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Paravar A, Piri R, Balouchi H, Ma Y. Microbial seed coating: An attractive tool for sustainable agriculture. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2023; 37:e00781. [PMID: 36655147 PMCID: PMC9841043 DOI: 10.1016/j.btre.2023.e00781] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
Seed coating is considered one of the best methods to promote sustainable agriculture where the physical and physiological properties of seeds can be improved to facilitate planting, increase growth indices and alleviate abiotic and biotic stresses. Several methods of seed coating are used to attain good application uniformity and adherence in the seed coating process. Seed coating has been tested in seeds of various plant species with different dimensions, forms, textures, and germination types. Plant beneficial microorganisms (PBM), such as rhizobia, bacteria, and fungi inoculated via seed inoculation can increase seed germination, plant performance and tolerance across biotic (e.g., pathogens and pests) and abiotic stress (e.g., salt, drought, and heavy metals) while reducing the use of agrochemical inputs. In this review, the microbial seed coating process and their ability to increase seed performance and protect plants from biotic and abiotic stresses are well discussed and highlighted in sustainable agricultural systems.
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Affiliation(s)
- Arezoo Paravar
- Department of Crop Production and Plant Breeding, College of Agriculture, Shahed University, Tehran, Iran
| | - Ramin Piri
- Department of Agronomy and Plant Breeding, College of Agriculture, University of Tehran, Tehran, Iran
| | - Hamidreza Balouchi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran,Corresponding authors.
| | - Ying Ma
- College of Resources and Environment, Southwest University, Chongqing, China,Corresponding authors.
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20
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Sharma M, Delta AK, Dhanda PS, Kaushik P, Mohanta YK, Saravanan M, Mohanta TK. AMF and PSB applications modulated the biochemical and mineral content of the eggplants. J Basic Microbiol 2022; 62:1371-1378. [PMID: 35996801 DOI: 10.1002/jobm.202200231] [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: 04/27/2022] [Revised: 07/31/2022] [Accepted: 08/05/2022] [Indexed: 11/10/2022]
Abstract
This study was conducted to investigate the beneficial role of phosphate solubilizing bacteria (PSB) and arbuscular mycorrhizal fungi (AMF) in improving eggplant fruits' biochemical composition and mineral content. The plants were treated with AMF Acaulospora laevis, and bacteria Pseudomonas fluorescens, and the corresponding variations were measured for mineral content (Ca, Fe, Mg, K, and P), biochemical parameters (dry matter, total soluble solid [TSS], phenolics, chlorogenic acid, vitamin C) along with arbuscular mycorrhiza spore number, and percentage of root colonization. The AMF and PSB-mediated soil and root-associated nutrients become available for uptake via mineralization, solubilization, and mobilization, primarily through the generation of organic acids and P-hydrolysing enzymes by the microbes. All the treatments showed a significant increase in the concentrations of different biochemical components. However, the combination of both A. laevis and P. fluorescens was found to be the most efficient. These results indicated the possibility of A. laevis and P. fluorescens being used as biofertilizers.
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Affiliation(s)
| | - Anil K Delta
- Department of Chemistry, Ranchi University, Ranchi, India
| | - Parmdeep S Dhanda
- Department of Biochemistry, Punjab Agricultural University, Ludhiana, India
| | - Prashant Kaushik
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Yugal K Mohanta
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Baridua, Ri-Bhoi, Meghalaya, India
| | - Muthupandian Saravanan
- AMR and Nanotherapeutics Laboratory, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Tapan K Mohanta
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
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Transcriptome Profiling Analysis of Phosphate-Solubilizing Mechanism of Pseudomonas Strain W134. Microorganisms 2022; 10:microorganisms10101998. [PMID: 36296274 PMCID: PMC9609647 DOI: 10.3390/microorganisms10101998] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/24/2022] Open
Abstract
Phosphate-solubilizing bacteria (PSB) can alleviate available phosphorus deficiency without causing environmental pollution, unlike chemical phosphate fertilizers. However, the phosphate solubilization mechanisms of PSB are still unclear. Transcriptome sequencing was used to analyze the expression patterns of differential expressed genes (DEGs) of the phosphate-solubilizing bacterium W134 under the conditions of soluble phosphorus (group A), insoluble phosphorus (group B), and lacking phosphorus (group C). Nine DEGs in three different groups were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Then, high performance liquid chromatography (HPLC) was applied to detect the concentrations and composition of organic acids. Compared with group A, Gene Ontology (GO) annotation showed that the cluster of W134 DEGs in groups B and C were basically the same. Besides, the results of enrichment Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway indicated that genes in the Citrate cycle (TCA cycle) pathway closely related to organic acid production were significantly upregulated. The qRT-PCR results were almost consistent with the expression trends of the transcriptome data. The HPLC results showed that the formic acid, ascorbic acid, acetic acid, citric acid, and succinic acid concentrations were significantly increased in group B and C (p < 0.05), while the contents of lactic acid and malic acid were significantly increased in group B (p < 0.05). The above results provided further validation that the upregulated genes should be related to W134 secretion of organic acids. Our study revealed several potential candidate genes and tried to explain phosphate solubilization mechanisms. This provides a new insight for calcareous reclaimed soil, and it will reduce the need of chemical phosphate fertilizers to promote environmentally friendly agriculture.
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22
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Janati W, Mikou K, El Ghadraoui L, Errachidi F. Isolation and characterization of phosphate solubilizing bacteria naturally colonizing legumes rhizosphere in Morocco. Front Microbiol 2022; 13:958300. [PMID: 36225374 PMCID: PMC9549286 DOI: 10.3389/fmicb.2022.958300] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Low-cost and environmentally friendly agricultural practices have received increasing attention in recent years. Developing microbial inoculants containing phosphate (P) solubilizing bacteria (PSB) represents an emerging biological solution to improve rhizosphere P availability. The present study aims to explore PSB strains isolated from soils located at different bioclimatic stages in Morocco and present in various legumes rhizosphere to improve agronomic microbial fertilizer’s effectiveness. It was also aimed to test the isolated strains for their ability to solubilize P in NBRIP medium with Tricalcium P (Ca3 (PO4)2) (TCP), rock phosphate (RP), and their combination as a source of phosphorus, by (22) experiment design. Bacterial strains with a high P solubility index (PSI) were selected, characterized, and compared to commercial control. The vanadate-molybdate method was used to estimate P solubilization activity. Stress tolerance to salinity, acidity, drought, and temperature was tested. From all isolated strains (64), 12 were screened as promising biotechnological interest because of their P solubilization and their good resistance to different drastic conditions. Besides, the strain WJEF15 showed the most P solubility efficiency in NBRIP solid medium with a PSI of 4.1; while the WJEF61 strain was located as the most efficient strain in NBRIP-TCP liquid medium by releasing 147.62 mg.l–1 of soluble P. In contrast, in the NBRIP-RP medium, the strain WJEF15 presented maximum solubilization with 25.16 mg.l–1. The experiment design showed that a combination of RP and TCP with max level progressively increases P solubilization by 20.58%, while the WJEF63 strain has the most efficient concentration of 102.69 mg.l–1. Indeed, among the selected strains, four strains were able to limit tested fungi growth. Thus, results reveal a potential effect of selecting PSBs to support cropping cultures as plant growth-promoting rhizobacteria (PGPR).
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Timofeeva A, Galyamova M, Sedykh S. Prospects for Using Phosphate-Solubilizing Microorganisms as Natural Fertilizers in Agriculture. PLANTS 2022; 11:plants11162119. [PMID: 36015422 PMCID: PMC9414882 DOI: 10.3390/plants11162119] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022]
Abstract
Phosphates are known to be essential for plant growth and development, with phosphorus compounds being involved in various physiological and biochemical reactions. Phosphates are known as one of the most important factors limiting crop yields. The problem of phosphorus deficiency in the soil has traditionally been solved by applying phosphate fertilizers. However, chemical phosphate fertilizers are considered ineffective compared to the organic fertilizers manure and compost. Therefore, increasing the bioavailability of phosphates for plants is one of the primary goals of sustainable agriculture. Phosphate-solubilizing soil microorganisms can make soil-insoluble phosphate bioavailable for plants through solubilization and mineralization. These microorganisms are currently in the focus of interest due to their advantages, such as environmental friendliness, low cost, and high biological efficiency. In this regard, the solubilization of phosphates by soil microorganisms holds strong potential in research, and inoculation of soils or crops with phosphate-solubilizing bacteria is a promising strategy to improve plant phosphate uptake. In this review, we analyze all the species of phosphate-solubilizing bacteria described in the literature to date. We discuss key mechanisms of solubilization of mineral phosphates and mineralization of organic phosphate-containing compounds: organic acids secreted by bacteria for the mobilization of insoluble inorganic phosphates, and the enzymes hydrolyzing phosphorus-containing organic compounds. We demonstrate that phosphate-solubilizing microorganisms have enormous potency as biofertilizers since they increase phosphorus bioavailability for the plant, promote sustainable agriculture, improve soil fertility, and raise crop yields. The use of phosphate-solubilizing microbes is regarded as a new frontier in increasing plant productivity.
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Affiliation(s)
- Anna Timofeeva
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 630090 Novosibirsk, Russia
| | - Maria Galyamova
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Sergey Sedykh
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 630090 Novosibirsk, Russia
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-91-3727-1000
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Saeed M, Ilyas N, Jayachandran K, Shabir S, Akhtar N, Shahzad A, Sayyed RZ, Bano A. Advances in Biochar and PGPR engineering system for hydrocarbon degradation: A promising strategy for environmental remediation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119282. [PMID: 35413406 DOI: 10.1016/j.envpol.2022.119282] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/24/2022] [Accepted: 04/06/2022] [Indexed: 05/22/2023]
Abstract
In soil, polycyclic aromatic hydrocarbons (PAHs) have resulted in severe environmental deterioration, compromised soil characteristics, and negatively affect all life forms, including humans. Developing appropriate and effective clean-up technology is crucial in solving the contamination issues. The traditional methods to treat PHAs contaminated soil are less effective and not ecofriendly. Bioremediation, based on bioaugmentation and biostimulation approaches, is a promising strategy for remediating contaminated soil. The use of plant growth-promoting rhizobacteria (PGPR) as a bioaugmentation tool is an effective technique for treating hydrocarbon contaminated soil. Plant growth-promoting rhizobacteria (PGPR) are group of rhizospheric bacteria that colonize the roots of plants. Biochar is a carbon-rich residue, which acts as a source of nutrients, and is also a bio-stimulating candidate to enhance the activities of oil-degrading bacteria. The application of biochar as a nutrient source to bioremediate oil-contaminated soil is a promising approach for reducing PHA contamination. Biochar induces polyaromatic hydrocarbons (PAHs) immobilization and removes the contaminants by various methods such as ion exchange electrostatic attractions and volatilization. In comparison, PGPR produce multiple types of biosurfactants to enhance the adsorption of hydrocarbons and mineralize the hydrocarbons with the conversion to less toxic substances. During the last few decades, the use of PGPR and biochar in the bioremediation of hydrocarbons-contaminated soil has gained greater importance. Therefore, developing and applying a PGPR-biochar-based remediating system can help manage hazardous PAH contaminated soil. The goal of this review paper is to (i) provide an overview of the PGPR mechanism for degradation of hydrocarbons and (ii) discuss the contaminants absorbent by biochar and its characteristics (iii) critically discuss the combined effect of PGPR and biochar for degradation of hydrocarbons by decreasing their mobility and bioavailability. The present review focuses on techniques of bioaugmentation and biostimulation based on use of PGPR and biochar in remediating the oil-contaminated soil.
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Affiliation(s)
- Maimona Saeed
- Department of Botany, PMAS Arid Agriculture University, Rawalpindi, Pakistan; Department of Botany, Government College Women University, Sialkot, Pakistan
| | - Noshin Ilyas
- Department of Botany, PMAS Arid Agriculture University, Rawalpindi, Pakistan.
| | | | - Sumera Shabir
- Department of Botany, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Nosheen Akhtar
- Department of Botany, PMAS Arid Agriculture University, Rawalpindi, Pakistan
| | - Asim Shahzad
- Department of Botany, Mohi-ud-Din Islamic University, Nerian Sharif AJ&K, Pakistan
| | - R Z Sayyed
- Department of Microbiology, P.S.G.V.P. Mandal's, Arts, Science, and Commerce College, Shahada, 425409, India
| | - Asghari Bano
- Department of Biosciences University of Wah, Quaid Avenue, Wah Cantt, Pakistan
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25
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Comparative efficacy of phosphorous supplements with phosphate solubilizing bacteria for optimizing wheat yield in calcareous soils. Sci Rep 2022; 12:11997. [PMID: 35835850 PMCID: PMC9283399 DOI: 10.1038/s41598-022-16035-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/04/2022] [Indexed: 11/28/2022] Open
Abstract
Phosphorus (P) deficiency is the main hurdle in achieving sustainable crop production ps especially in calcareous soils. Using bio-fertilizers like phosphate solubilizing bacteria (PSB) could be a useful approach for sustainable P management as they improve P availability in soil via dissolution, desorption and mineralization reactions. In addition, application of organic amendments with PSB could further ameliorate soil conditions for sustainable management of immobilized nutrients in calcarious soils. Therefore, we performed pot experiment to study the role of PSB in nullifying antagonistic effects of liming (4.78, 10, 15 and 20%) on P availability from poultry manure (PM), farm yard manure (FYM), single super phosphate (SSP) and rock phosphate (RP) in alkaline soils. PSB inoculation improved wheat growth, P availability and stimulated soil acidification over control regardless of P sources and lime levels. Soil calcification adversely affected plant growth, P nutrition, induced soil salinity and alkalinity, however, PSB and manures application potentially nullified such harmful effects over mentioned traits. Individually, organic sources were superior than mineral sources however, the performance of mineral fertilizers with PSB was at par to sole application of manures. Furthermore, application of RP with PSB proved as effective as sole SSP. Therefore, using PSB as bio-fertilizer has huge potential for improving P availability in calcareous soils.
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26
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Jakhar AM, Aziz I, Kaleri AR, Hasnain M, Haider G, Ma J, Abideen Z. Nano-fertilizers: A sustainable technology for improving crop nutrition and food security. NANOIMPACT 2022; 27:100411. [PMID: 35803478 DOI: 10.1016/j.impact.2022.100411] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/19/2022] [Accepted: 06/26/2022] [Indexed: 05/21/2023]
Abstract
Excessive use of synthetic fertilizers cause economic burdens, increasing soil, water and atmospheric pollution. Nano-fertilizers have shown great potential for their sustainable uses in soil fertility, crop production and with minimum or no environmental tradeoffs. Nano-fertilizers are of submicroscopic sizes, have a large surface area to volume ratio, can have nutrient encapsulation, and greater mobility hence they may increase plant nutrient access and crop yield. Due to these properties, nano-fertilizers are regarded as deliverable 'smart system of nutrients'. However, the problems in the agroecosystem are broader than existing developments. For example, nutrient delivery in different physicochemical properties of soils, moisture, and other agro-ecological conditions is still a challenge. In this context, the present review provides an overview of various uses of nanotechnology in agriculture, preference of nano-fertilizers over the conventional fertilizers, nano particles formation, mobility, and role in heterogeneous soils, with special emphasis on the development and use of chitosan-based nano-fertilizers.
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Affiliation(s)
- Ali Murad Jakhar
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang Sichuan 621010, China; Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
| | - Irfan Aziz
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan
| | - Abdul Rasheed Kaleri
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang Sichuan 621010, China
| | - Maria Hasnain
- Department of Biotechnology, Lahore College for Women University, Lahore, Pakistan
| | - Ghulam Haider
- Department of Plant Biotechnology, Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Jiahua Ma
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang Sichuan 621010, China.
| | - Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan.
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Progress and Applications of Plant Growth-Promoting Bacteria in Salt Tolerance of Crops. Int J Mol Sci 2022; 23:ijms23137036. [PMID: 35806037 PMCID: PMC9266936 DOI: 10.3390/ijms23137036] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Saline soils are a major challenge in agriculture, and salinization is increasing worldwide due to climate change and destructive agricultural practices. Excessive amounts of salt in soils cause imbalances in ion distribution, physiological dehydration, and oxidative stress in plants. Breeding and genetic engineering methods to improve plant salt tolerance and the better use of saline soils are being explored; however, these approaches can take decades to accomplish. A shorter-term approach to improve plant salt tolerance is to be inoculated with bacteria with high salt tolerance or adjusting the balance of bacteria in the rhizosphere, including endosymbiotic bacteria (living in roots or forming a symbiont) and exosymbiotic bacteria (living on roots). Rhizosphere bacteria promote plant growth and alleviate salt stress by providing minerals (such as nitrogen, phosphate, and potassium) and hormones (including auxin, cytokinin, and abscisic acid) or by reducing ethylene production. Plant growth-promoting rhizosphere bacteria are a promising tool to restore agricultural lands and improve plant growth in saline soils. In this review, we summarize the mechanisms of plant growth-promoting bacteria under salt stress and their applications for improving plant salt tolerance to provide a theoretical basis for further use in agricultural systems.
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Dawar K, Khan A, Mian IA, Khan B, Ali S, Ahmad S, Szulc P, Fahad S, Datta R, Hatamleh AA, Al-Dosary MA, Danish S. Maize productivity and soil nutrients variations by the application of vermicompost and biochar. PLoS One 2022; 17:e0267483. [PMID: 35544552 PMCID: PMC9094532 DOI: 10.1371/journal.pone.0267483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/10/2022] [Indexed: 11/19/2022] Open
Abstract
Poor soil organic matter is one of the major causes of the deterioration of soil health. Most soils fertility is also decreased when enough organic carbon is not present in the soil. Maize is most susceptible to this poor soil fertility status. A significant amount of maize growth and yield is lost when it is cultivated in low organic matter and poor fertility soil. To overcome this issue organic amendments can play an imperative role. Biochar and vermicompost are organic amendments that can not only improve organic residues but also increase soil nutrient concentration. The current experiment was conducted to explore the sole and combined application of both organic amendments with recommended NPK fertilizer. Four treatments were tested i.e., control, biochar (BC1), vermicompost (VC1) and VC1+BC1 with and without nitrogen (N), phosphorus (P) and potassium (K) in the experiment. Results showed that VC1+BC1+NPK performed significantly best for improvement in maize plant height (6.25 and 3.00%), 1000 grains weight (30.48 and 29.40%), biological yield (18.86 and 43.12%) and grains yield (30.58 and 39.59%) compared to BC0+VC0+NPK and control respectively. A significant improvement in soil N, P and K also validated the efficacious role of VC1+BC1+NPK over BC0+VC0+NPK and control. Treatment VC1+BC1+NPK is recommended for the achievement of better maize growth and yield in poor organic matter soils. More investigations are suggested in variable climatic conditions to declare VC1+BC1+NPK as the best amendment compared to control for enhancing soil N, P and K status as well as maize productivity.
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Affiliation(s)
- Khadim Dawar
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Ahtesham Khan
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Ishaq Ahmad Mian
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Pakistan
| | - Bushra Khan
- Department of Soil and Environmental Sciences, University of Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Shamsher Ali
- Department of Soil and Environmental Sciences, Amir Muhammad Khan Campus Mardan, The University of Agriculture, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Sagheer Ahmad
- Faculty of Agricultural Sciences and Technology, Department of Agronomy, Bahauddin Zakariya University, Multan, Punjab, Pakistan
| | - Piotr Szulc
- Department of Agronomy, Poznan University of Life Sciences, Dojazd, Poznan, Poland
| | - 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, Khyber Pakhtunkhwa, Pakistan
| | - Rahul Datta
- Faculty of Forestry and Wood Technology, Department of Geology and Pedology, Mendel University in Brno, Zemedelska1, Brno, Czech Republic
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Subhan Danish
- Department of Agronomy, The University of Haripur, Khyber Pakhtunkhwa, Pakistan
- Faculty of Agricultural Sciences and Technology, Department of Soil Science, Bahauddin Zakariya University, Multan, Punjab, Pakistan
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Gao B, Chai X, Huang Y, Wang X, Han Z, Xu X, Wu T, Zhang X, Wang Y. Siderophore production in
Pseudomonas
sp. strain
SP3
enhances iron acquisition in apple rootstock. J Appl Microbiol 2022; 133:720-732. [DOI: 10.1111/jam.15591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/18/2022] [Accepted: 04/22/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Beibei Gao
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Xiaofen Chai
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Yimei Huang
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Xiaona Wang
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Zhenhai Han
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Xuefeng Xu
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Ting Wu
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Xinzhong Zhang
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
| | - Yi Wang
- College of Horticulture China Agricultural University Beijing 100193 P. R. China
- Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs China Agricultural University Beijing 100193 P. R. China
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Adhikari A, Khan MA, Imran M, Lee KE, Kang SM, Shin JY, Joo GJ, Khan M, Yun BW, Lee IJ. The Combined Inoculation of Curvularia lunata AR11 and Biochar Stimulates Synthetic Silicon and Potassium Phosphate Use Efficiency, and Mitigates Salt and Drought Stresses in Rice. FRONTIERS IN PLANT SCIENCE 2022; 13:816858. [PMID: 35310624 PMCID: PMC8928408 DOI: 10.3389/fpls.2022.816858] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/01/2022] [Indexed: 06/12/2023]
Abstract
Synthetic chemical fertilizers are a fundamental source of nutrition for agricultural crops; however, their limited availability, low plant uptake, and excessive application have caused severe ecological imbalances. In addition, the gravity of environmental stresses, such as salinity and water stress, has already exceeded the threshold limit. Therefore, the optimization of nutrient efficiency in terms of plant uptake is crucial for sustainable agricultural production. To address these challenges, we isolated the rhizospheric fungus Curvularia lunata ARJ2020 (AR11) and screened the optimum doses of biochar, silicon, and potassium phosphate (K2HPO4), and used them-individually or jointly-to treat rice plants subjected to salt (150 mM) and drought stress (20-40% soil moisture). Bioassay analysis revealed that AR11 is a highly halotolerant and drought-resistant strain with an innate ability to produce gibberellin (GA1, GA3, GA4, and GA7) and organic acids (i.e., acetic, succinic, tartaric, and malic acids). In the plant experiment, the co-application of AR11 + Biochar + Si + K2HPO4 significantly improved rice growth under both salt and drought stresses. The plant growth regulator known as abscisic acid, was significantly reduced in co-application-treated rice plants exposed to both drought and salt stress conditions. These plants showed higher Si (80%), P (69%), and K (85%) contents and a markedly low Na+ ion (208%) concentration. The results were further validated by the higher expression of the Si-carrying gene OsLSi1, the salt-tolerant gene OsHKT2, and the OsGRAS23's drought-tolerant transcriptome. Interestingly, the beneficial effect of AR11 was significantly higher than that of the co-application of Biochar + Si + K2HPO4 under drought. Moreover, the proline content of AR11-treated plants decreased significantly, and an enhancement of plant growth-promoting characteristics was observed. These results suggest that the integrated co-application of biochar, chemical fertilizers, and microbiome could mitigate abiotic stresses, stimulate the bioavailability of essential nutrients, relieve phytotoxicity, and ultimately enhance plant growth.
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Affiliation(s)
- Arjun Adhikari
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Muhammad Aaqil Khan
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Muhammad Imran
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Ko-Eun Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Sang-Mo Kang
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Jin Y. Shin
- Department of Chemistry and Environmental Science, Medgar Evers College, The City University of New York, New York City, NY, United States
| | - Gil-Jae Joo
- Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, South Korea
| | - Murtaza Khan
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Byung-Wook Yun
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, South Korea
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Khan H, Akbar WA, Shah Z, Rahim HU, Taj A, Alatalo J. Coupling phosphate-solubilizing bacteria (PSB) with inorganic phosphorus fertilizer improves mungbean ( Vigna radiata) phosphorus acquisition, nitrogen fixation, and yield in alkaline-calcareous soil. Heliyon 2022; 8:e09081. [PMID: 35295658 PMCID: PMC8919226 DOI: 10.1016/j.heliyon.2022.e09081] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/09/2022] [Accepted: 03/04/2022] [Indexed: 01/24/2023] Open
Abstract
To overcome the problems associated with soil phosphorus (P) insolubility, soil inoculation with phosphate-solubilizing bacteria (PSB) can be used. In a field experiment, we evaluated the efficacy of PSB in enhancing mungbean P acquisition, nitrogen (N) fixation, and morphological and yield traits in alkaline-calcareous soil when added together with P as single superphosphate (SSP) or rock phosphate (RP) at 45 or 90 kg P2O5 ha-1. Coupling PSB with mineral P fertilizers (SSP & RP) improved P use efficiency, mungbean P acquisition, N2 fixation, nodulation, NP uptake, and the morphological and yield-related traits of mungbeans compared with non-fertilized controls and plots received P from mineral sources alone. Soil PSB inoculation with mineral P also improved post-harvest soil fertility relative to pre-harvest by improving soil organic matter from 0.61% to 0.70%, lowering pH from 7.74 to 7.68, and improving soil total N from 0.04 to 0.09%, ABDTPA-extractable P from 2.07 to 3.44 mg kg-1, and potassium (K) concentrations from 100.27 to 129.45 mg kg-1. When combined with PSB, RP generally performed better than SSP. Moreover, there was a significant correlation between soil N and plant N, while the correlation between soil P and plant P was non-significant. The correlation between soil organic matter content and NP uptake by mungbeans was also non-significant. Therefore, adding P as RP at 45-90 kg ha-1, together with PSB inoculation, can be recommended for improving mungbean P acquisition, use efficiency, optimum N2 fixation, and yield in alkaline-calcareous soils.
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Affiliation(s)
- Hamid Khan
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Waqas Ali Akbar
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Zahir Shah
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Hafeez Ur Rahim
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Ali Taj
- Department of Soil and Environmental Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Juha.M. Alatalo
- Environmental Science Center, Qatar University, PO Box 2713, Doha, Qatar
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Impacts of corn stover management and fertilizer application on soil nutrient availability and enzymatic activity. Sci Rep 2022; 12:1985. [PMID: 35132132 PMCID: PMC8821671 DOI: 10.1038/s41598-022-06042-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 01/24/2022] [Indexed: 11/08/2022] Open
Abstract
Corn stover is a global resource used in many industrial sectors including bioenergy, fuel, and livestock operations. However, stover removal can negatively impact soil nutrient availability, especially nitrogen (N) and phosphorus (P), biological activity, and soil health. We evaluated the effects of corn stover management combined with N and P fertilization on soil quality, using soil chemical (nitrate, ammonium and Bray-1 P) and biological parameters (β-glucosidase, alkaline phosphatase, arylsulfatase activities and fluorescein diacetate hydrolysis—FDA). The experiment was performed on a Mollisol (Typic Endoaquoll) in a continuous corn system from 2013 to 2015 in Minnesota, USA. The treatments tested included six N rates (0 to 200 kg N ha−1), five P rates (0 to 100 kg P2O5 ha−1), and two residue management strategies (residue removed or incorporated) totalling 60 treatments. Corn stover management significantly impacted soil mineral-N forms and enzyme activity. In general, plots where residue was incorporated were found to have high NH4+ and enzyme activity compared to plots where residue was removed. In contrast, fields where residue was removed showed higher NO3− than plots where residue was incorporated. Residue management had little effect on soil available P. Soil enzyme activity was affected by both nutrient and residue management. In most cases, activity of the enzymes measured in plots where residue was removed frequently showed a positive response to added N and P. In contrast, soil enzyme responses to applied N and P in plots where residue was incorporated were less evident. Soil available nutrients tended to decrease in plots where residue was removed compared with plots where residue was incorporated. In conclusion, stover removal was found to have significant potential to change soil chemical and biological properties and caution should be taken when significant amounts of stover are removed from continuous corn fields. The residue removal could decrease different enzymes related to C-cycle (β-glucosidase) and soil microbial activity (FDA) over continuous cropping seasons, impairing soil health.
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Kapadia C, Patel N, Rana A, Vaidya H, Alfarraj S, Ansari MJ, Gafur A, Poczai P, Sayyed RZ. Evaluation of Plant Growth-Promoting and Salinity Ameliorating Potential of Halophilic Bacteria Isolated From Saline Soil. FRONTIERS IN PLANT SCIENCE 2022; 13:946217. [PMID: 35909789 PMCID: PMC9335293 DOI: 10.3389/fpls.2022.946217] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/17/2022] [Indexed: 05/09/2023]
Abstract
Among the biotic and abiotic stress affecting the physical, chemical, and biological properties of soil, salinity is a major threat that leads to the desertification of cultivable land throughout the world. The existence of diverse and versatile microbial populations inhabiting the nutrient-rich soil and varied soil conditions affects the soil dynamism. A normal soil constitutes 600 million bacteria belonging to about 20,000 species, which is reduced to 1 million with 5,000-8,000 species in stress conditions. Plant growth-promoting rhizobacteria (PGPR) are in symbiotic association with the plant system, which helps in combating the abiotic stress and increases the overall productivity and yield. These microorganisms are actively associated with varied cellular communication processes through quorum sensing and secondary metabolites such as the production of Indole-3-acetic acid (IAA), exopolysaccharide (EPS) siderophore, ammonia, ACC deaminase, and solubilization of phosphate. The present study focused on the isolation, identification, and characterization of the microorganisms isolated from the seacoast of Dandi, Navsari. Twelve isolates exhibited PGP traits at a high salt concentration of 15-20%. AD9 isolate identified as Bacillus halotolerans showed a higher ammonia production (88 ± 1.73 μg/mL) and phosphate solubilization (86 ± 3.06 μg/mL) at 15% salt concentration, while AD32* (Bacillus sp. clone ADCNO) gave 42.67 ±1.20 μg/mL IAA production at 20% salt concentration. AD2 (Streptomyces sp. clone ADCNB) and AD26 (Achromobacter sp. clone ADCNI) showed ACC deaminase activity of 0.61 ± 0.12 and 0.60 ± 0.04 nM α-ketobutyrate/mg protein/h, respectively. AD32 (Bacillus sp. clone ADCNL) gave a high siderophore activity of 65.40 ± 1.65%. These isolates produced salinity ameliorating traits, total antioxidant activities, and antioxidant enzymes viz. superoxide dismutase (SOD), Glutathione oxidase (GSH), and catalase (CAT). Inoculation of the multipotent isolate that produced PGP traits and salinity ameliorating metabolites promoted the plant growth and development in rice under salinity stress conditions. These results in 50% more root length, 25.00% more plant dry weight, and 41% more tillers compared to its control.
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Affiliation(s)
- Chintan Kapadia
- Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, India
| | - Nafisa Patel
- Naran Lala College of Professional and Applied Sciences, Navsari, India
- *Correspondence: Nafisa Patel
| | - Ankita Rana
- Naran Lala College of Professional and Applied Sciences, Navsari, India
| | - Harihar Vaidya
- Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari, India
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, India
| | - Abdul Gafur
- Sinarmas Forestry Corporate Research and Development, Perawang, Indonesia
| | - Peter Poczai
- Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
- Peter Poczai
| | - R. Z. Sayyed
- Department of Entomology, Asian PGPR Society for Sustainable Agriculture, Auburn University, Auburn, AL, United States
- Department of Microbiology, PSGVP Mandal's‘S I Patil Arts, G B Patel Science, and STKV Sangh Commerce College, Shahada, India
- R. Z. Sayyed
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Jiang H, Li S, Wang T, Chi X, Qi P, Chen G. Interaction Between Halotolerant Phosphate-Solubilizing Bacteria ( Providencia rettgeri Strain TPM23) and Rock Phosphate Improves Soil Biochemical Properties and Peanut Growth in Saline Soil. Front Microbiol 2021; 12:777351. [PMID: 35027913 PMCID: PMC8751486 DOI: 10.3389/fmicb.2021.777351] [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: 09/15/2021] [Accepted: 11/17/2021] [Indexed: 11/21/2022] Open
Abstract
Soil salinity has adverse effects on soil microbial activity and nutrient cycles and therefore limits crop growth and yield. Amendments with halotolerant phosphate-solubilizing bacteria (PSB) and rock phosphate (RP) may improve properties of saline soil. In this study, we investigated the effects of RP either alone or in combination with PSB (Providencia rettgeri strain TPM23) on peanut growth and soil quality in a saline soil. With the combined application of RP and PSB, plant length and biomass (roots and shoots) and uptake of phosphorus (P), nitrogen (N), and potassium (K) increased significantly. Soil Na+ and Cl- contents decreased in the PR alone or PR combined with PSB treatment groups. There were strongly synergistic effects of RP and PSB on soil quality, including a decrease in pH. The soil available N, P, and K contents were significantly affected by the PSB treatments. In addition, the alkaline phosphomonoesterases, urease, and dehydrogenase activities increased significantly compared with the untreated group; highest alkaline phosphomonoesterases activity was observed in the RP and PSB treatment groups. The composition of rhizosphere soil bacterial communities was determined using 454-pyrosequencing of the 16S rRNA gene. In the PR alone or PR combined with PSB treatment groups, the structure of the soil bacterial community improved with increasing richness and diversity. With PSB inoculation, the relative abundance of Acidobacteria, Chloroflexi, and Planctomycetes increased. The three phyla were also positively correlated with soil available N and root dry weight. These results suggested microbiological mechanisms by which the combined use of RP and PSB improved saline soil and promoted plant growth. Overall, the study indicates the combined use of RP and PSB can be an economical and sustainable strategy to increase plant growth in P-deficient and salt-affected soils.
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Affiliation(s)
- Huanhuan Jiang
- College of Life Sciences, Zhaoqing University, Zhaoqing, China
- Shandong Peanut Research Institute, Qingdao, China
| | - Sainan Li
- College of Life Sciences, Zhaoqing University, Zhaoqing, China
| | - Tong Wang
- Shandong Peanut Research Institute, Qingdao, China
| | - Xiaoyuan Chi
- Shandong Peanut Research Institute, Qingdao, China
| | - Peishi Qi
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China
| | - Gang Chen
- College of Life Sciences, Zhaoqing University, Zhaoqing, China
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35
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Ullah S, Ali S, Binte Abid A, Nafees M. Modulating response of Zea mays to induced salinity stress through application of nitrate mediated silver nanoparticles and indole acetic acid. Microsc Res Tech 2021; 85:1135-1145. [PMID: 34775653 DOI: 10.1002/jemt.23982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/21/2021] [Accepted: 11/03/2021] [Indexed: 11/11/2022]
Abstract
Nanotechnology has been amplified in different areas of science as well as agriculture in the present era. So, the present work was designed to evaluate the result of nitrate mediated silver nanoparticles (Nit-AgNPs) and indole acetic acid (IAA) on physio-biochemical features of the selected maize variety (Pahari white) under 40 and 80 mM salinity induction. Seeds were propagated in triplicates in earthen pots (18 cm inferior and superior inside diameter, 20 cm stature, and 2 cm breadth) filled with silt and soil (1:2) having 3.09-5.12 Electrical conductivity (EC), 6.8-7.3 pH, and 4-16% moisture contents. Scanning electron microscopy results showed the average particle size around 90 nm indicating a high surface area suitable for adsorption properties, agglomerated, roughly spherical, and were uniformly dispersed. Elemental quantification of biosynthesized AgNPs analyzed via energy dispersive X-ray spectroscopy showed a strong peak at 3.0 KeV along with the presence of elements K, N, O, and C. Results of Thermo-gravimetric Analysis (TGA)/Differential Thermal Analysis (DTA) showed endothermic major decline at 150-300°C, while exothermic peak at 300-400°C. The growth responses at 40 mM salinity concentration have been reduced representing from the least boundary of chlorophyll "a," "b," and peroxidase content, whereas; this adverse effect has been reduced by operation of Nit-AgNPs as separate treatment and in combination with IAA. From the current study, it has been concluded that salinity concentration at 80 mM adversely affected the values of osmolytes, protein, and superoxide dismutase whereas the maximum amplitude of proline reduced by the application of Nit-AgNPs as distinct treatment indicating that the plant behaves normal with the combined application of nanoparticles and IAA.
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Affiliation(s)
- Sami Ullah
- Plant Physiology Lab., Department of Botany, University of Peshawar, Peshawar, Pakistan
| | - Sara Ali
- Plant Physiology Lab., Department of Botany, University of Peshawar, Peshawar, Pakistan
| | - Afroz Binte Abid
- Plant Physiology Lab., Department of Botany, University of Peshawar, Peshawar, Pakistan
| | - Muhammad Nafees
- Plant Physiology Lab., Department of Botany, University of Peshawar, Peshawar, Pakistan
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36
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Yahya M, Islam EU, Rasul M, Farooq I, Mahreen N, Tawab A, Irfan M, Rajput L, Amin I, Yasmin S. Differential Root Exudation and Architecture for Improved Growth of Wheat Mediated by Phosphate Solubilizing Bacteria. Front Microbiol 2021; 12:744094. [PMID: 34721342 PMCID: PMC8554232 DOI: 10.3389/fmicb.2021.744094] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/26/2021] [Indexed: 01/24/2023] Open
Abstract
Phosphorous (P) deficiency is a major challenge faced by global agriculture. Phosphate-solubilizing bacteria (PSB) provide a sustainable approach to supply available phosphates to plants with improved crop productivity through synergistic interaction with plant roots. The present study demonstrates an insight into this synergistic P-solubilizing mechanism of PSB isolated from rhizosphere soils of major wheat-growing agro-ecological zones of Pakistan. Seven isolates were the efficient P solubilizers based on in vitro P-solubilizing activity (233-365 μg ml-1) with a concomitant decrease in pH (up to 3.5) by the production of organic acids, predominantly acetic acid (∼182 μg ml-1) and gluconic acid (∼117 μg ml-1). Amplification and phylogenetic analysis of gcd, pqqE, and phy genes of Enterobacter sp. ZW32, Ochrobactrum sp. SSR, and Pantoea sp. S1 showed the potential of these PSB to release orthophosphate from recalcitrant forms of phosphorus. Principal component analysis indicates the inoculation response of PSB consortia on the differential composition of root exudation (amino acids, sugars, and organic acids) with subsequently modified root architecture of three wheat varieties grown hydroponically. Rhizoscanning showed a significant increase in root parameters, i.e., root tips, diameter, and surface area of PSB-inoculated plants as compared to uninoculated controls. Efficiency of PSB consortia was validated by significant increase in plant P and oxidative stress management under P-deficient conditions. Reactive oxygen species (ROS)-induced oxidative damages mainly indicated by elevated levels of malondialdehyde (MDA) and H2O2 contents were significantly reduced in inoculated plants by the production of antioxidant enzymes, i.e., superoxide dismutase, catalase, and peroxidase. Furthermore, the inoculation response of these PSB on respective wheat varieties grown in native soils under greenhouse conditions was positively correlated with improved plant growth and soil P contents. Additionally, grain yield (8%) and seed P (14%) were significantly increased in inoculated wheat plants with 20% reduced application of diammonium phosphate (DAP) fertilizer under net house conditions. Thus, PSB capable of such synergistic strategies can confer P biofortification in wheat by modulating root morphophysiology and root exudation and can alleviate oxidative stress under P deficit conditions.
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Affiliation(s)
- Mahreen Yahya
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Ejaz ul Islam
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Maria Rasul
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, South Korea
| | - Iqra Farooq
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Naima Mahreen
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Abdul Tawab
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Muhammad Irfan
- Sustainable Agriculture and Food Programme (SAFP), World Wildlife Fund, Khanewal, Pakistan
| | - Lubna Rajput
- Plant Physiology and Biotechnology Agricultural Research Centre, Tandojam, Pakistan
| | - Imran Amin
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Sumera Yasmin
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
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37
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Dawar K, Fahad S, Jahangir MMR, Munir I, Alam SS, Khan SA, Mian IA, Datta R, Saud S, Banout J, Adnan M, Ahmad MN, Khan A, Dewil R, Habib-ur-Rahman M, Ansari MJ, Danish S. Biochar and urease inhibitor mitigate NH 3 and N 2O emissions and improve wheat yield in a urea fertilized alkaline soil. Sci Rep 2021; 11:17413. [PMID: 34465833 PMCID: PMC8408238 DOI: 10.1038/s41598-021-96771-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
In this study, we explored the role of biochar (BC) and/or urease inhibitor (UI) in mitigating ammonia (NH3) and nitrous oxide (N2O) discharge from urea fertilized wheat cultivated fields in Pakistan (34.01°N, 71.71°E). The experiment included five treatments [control, urea (150 kg N ha-1), BC (10 Mg ha-1), urea + BC and urea + BC + UI (1 L ton-1)], which were all repeated four times and were carried out in a randomized complete block design. Urea supplementation along with BC and BC + UI reduced soil NH3 emissions by 27% and 69%, respectively, compared to sole urea application. Nitrous oxide emissions from urea fertilized plots were also reduced by 24% and 53% applying BC and BC + UI, respectively, compared to urea alone. Application of BC with urea improved the grain yield, shoot biomass, and total N uptake of wheat by 13%, 24%, and 12%, respectively, compared to urea alone. Moreover, UI further promoted biomass and grain yield, and N assimilation in wheat by 38%, 22% and 27%, respectively, over sole urea application. In conclusion, application of BC and/or UI can mitigate NH3 and N2O emissions from urea fertilized soil, improve N use efficiency (NUE) and overall crop productivity.
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Affiliation(s)
- Khadim Dawar
- grid.412298.40000 0000 8577 8102Department of Soil and Environmental Science (SES), The University of Agriculture, Peshawar, KPK Pakistan
| | - Shah Fahad
- grid.467118.d0000 0004 4660 5283Department of Agronomy, The University of Haripur, Haripur, Khyber Pakhtunkhwa 22620 Pakistan ,grid.428986.90000 0001 0373 6302Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, 570228 Hainan China
| | - M. M. R. Jahangir
- grid.411511.10000 0001 2179 3896Department of Soil Science, Bangladesh Agricultural University, Mymensingh, 2202 Bangladesh
| | - Iqbal Munir
- grid.412298.40000 0000 8577 8102Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar, Pakistan
| | - Syed Sartaj Alam
- grid.412298.40000 0000 8577 8102Department of Plant Pathology, The University of Agriculture, Peshawar, Pakistan
| | - Shah Alam Khan
- grid.412298.40000 0000 8577 8102Department of Plant Protection, The University of Agriculture, Peshawar, Pakistan
| | - Ishaq Ahmad Mian
- grid.412298.40000 0000 8577 8102Department of Soil and Environmental Science (SES), The University of Agriculture, Peshawar, KPK Pakistan
| | - Rahul Datta
- grid.7112.50000000122191520Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300 Brno, Czech Republic
| | - Shah Saud
- grid.412243.20000 0004 1760 1136Department of Horticulture, Northeast Agricultural University, Harbin, China ,grid.15866.3c0000 0001 2238 631XFaculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jan Banout
- grid.15866.3c0000 0001 2238 631XFaculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Muhammad Adnan
- grid.502337.00000 0004 4657 4747Department of Agriculture, University of Swabi, Swabi, Khyber Pakhtunkhwa Pakistan
| | - Muhammad Nauman Ahmad
- grid.412298.40000 0000 8577 8102Department of Agricultural Chemistry, The University of Agriculture, Peshawar, Pakistan
| | - Aamir Khan
- grid.412298.40000 0000 8577 8102Department of Soil and Environmental Science (SES), The University of Agriculture, Peshawar, KPK Pakistan
| | - Raf Dewil
- grid.5596.f0000 0001 0668 7884Process and Environmental Technology Lab, Department of Chemical Engineering, KU Leuven (University of Leuven), Leuven, Belgium
| | - Muhammad Habib-ur-Rahman
- grid.10388.320000 0001 2240 3300Crop Science, Institute of Crop Science and Resources Conservation (INRES), University of Bonn, Bonn, Germany ,Department of Agronomy, MNS University of Agriculture Multan, Multan, Pakistan
| | - Mohammad Javed Ansari
- grid.411529.a0000 0001 0374 9998Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, 244001 India
| | - Subhan Danish
- grid.7112.50000000122191520Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300 Brno, Czech Republic ,grid.411501.00000 0001 0228 333XDepartment of Soil Science, Faculty of Agricultural Sciences & Technology, Bahauddin Zakariya University, Multan, Punjab 60800 Pakistan
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38
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Bargaz A, Elhaissoufi W, Khourchi S, Benmrid B, Borden KA, Rchiad Z. Benefits of phosphate solubilizing bacteria on belowground crop performance for improved crop acquisition of phosphorus. Microbiol Res 2021; 252:126842. [PMID: 34438221 DOI: 10.1016/j.micres.2021.126842] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
Although research on plant growth promoting bacteria began in the 1950s, basic and applied research on bacteria improving use of phosphorus (P) continues to be a priority among many agricultural research institutions. Ultimately, identifying agriculturally beneficial microbes, notably P solubilizing bacteria (PSB), that enhance the efficient use of P supports more sustainable cropping systems and the judicious use of mineral nutrients. In parallel, there is more attention on improving crop root P acquisition of existing soil P pools as well as by increasing the proportion of fertilizer P that is taken up by crops. Today, new lines of research are emerging to investigate the co-optimization of PSB-fertilizer-crop root processes for improved P efficiency and agricultural performance. In this review, we compile and summarize available findings on the beneficial effects of PSB on crop production with a focus on crop P acquisition via root system responses at the structural, functional and transcriptional levels. We discuss the current state of knowledge on the mechanisms of PSB-mediated P availability, both soil- and root-associated, as well as crop uptake via P solubilization, mineralization and mobilization, mainly through the production of organic acids and P-hydrolyzing enzymes, and effects on phytohormone signaling for crop root developement. The systematic changes caused by PSB on crop roots are discussed and contextualized within promising functional trait-based frameworks. We also detail agronomic profitability of P (mineral and organic) and PSB co-application, in amended soils and inoculated crops, establishing the connection between the influence of PSB on agroecosystem production and the impact of P fertilization on microbial diversity and crop functional traits for P acquisition.
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Affiliation(s)
- Adnane Bargaz
- Mohammed VI Polytechnic University, Agrobiosciences Program, Plant & Soil Microbiome Subprogram, Bengurir, 43150, Morocco.
| | - Wissal Elhaissoufi
- Mohammed VI Polytechnic University, Agrobiosciences Program, Plant & Soil Microbiome Subprogram, Bengurir, 43150, Morocco; Cadi Ayyad University, Faculty of Sciences and Techniques, Biology Dep., Marrakech, Morocco
| | - Said Khourchi
- Mohammed VI Polytechnic University, Agrobiosciences Program, Plant & Soil Microbiome Subprogram, Bengurir, 43150, Morocco; University of Liège, Gembloux Agro-Bio Tech, Liège, Belgium
| | - Bouchra Benmrid
- Mohammed VI Polytechnic University, Agrobiosciences Program, Plant & Soil Microbiome Subprogram, Bengurir, 43150, Morocco
| | - Kira A Borden
- University of British Columbia, Faculty of Land and Food Systems, Vancouver, V6T 1Z4, Canada
| | - Zineb Rchiad
- Mohammed VI Polytechnic University, Agrobiosciences Program, Plant & Soil Microbiome Subprogram, Bengurir, 43150, Morocco
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39
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Sarkar D, Sankar A, Devika OS, Singh S, Shikha, Parihar M, Rakshit A, Sayyed RZ, Gafur A, Ansari MJ, Danish S, Fahad S, Datta R. Optimizing nutrient use efficiency, productivity, energetics, and economics of red cabbage following mineral fertilization and biopriming with compatible rhizosphere microbes. Sci Rep 2021; 11:15680. [PMID: 34344947 PMCID: PMC8333308 DOI: 10.1038/s41598-021-95092-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Conventional agricultural practices and rising energy crisis create a question about the sustainability of the present-day food production system. Nutrient exhaustive crops can have a severe impact on native soil fertility by causing nutrient mining. In this backdrop, we conducted a comprehensive assessment of bio-priming intervention in red cabbage production considering nutrient uptake, the annual change in soil fertility, nutrient use efficiency, energy budgeting, and economic benefits for its sustainable intensification, among resource-poor farmers of Middle Gangetic Plains. The compatible microbial agents used in the study include Trichoderma harzianum, Pseudomonas fluorescens, and Bacillus subtilis. Field assays (2016-2017 and 2017-2018) of the present study revealed supplementing 75% of recommended NPK fertilizer with dual inoculation of T. harzianum and P. fluorescens increased macronutrient uptake (N, P, and K), root length, heading percentage, head diameter, head weight, and the total weight of red cabbage along with a positive annual change in soil organic carbon. Maximum positive annual change in available N and available P was recorded under 75% RDF + P. fluorescens + B. subtilis and 75% RDF + T. harzianum + B. subtilis, respectively. Bio-primed plants were also higher in terms of growth and nutrient use efficiency (agronomic efficiency, physiological efficiency, apparent recovery efficiency, partial factor productivity). Energy output (26,370 and 26,630 MJ ha-1), energy balance (13,643 and 13,903 MJ ha-1), maximum gross return (US $ 16,030 and 13,877 ha-1), and net return (US $ 15,966 and 13,813 ha-1) were considerably higher in T. harzianum, and P. fluorescens treated plants. The results suggest the significance of the bio-priming approach under existing integrated nutrient management strategies and the role of dual inoculations in producing synergistic effects on plant growth and maintaining the soil, food, and energy nexus.
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Affiliation(s)
- Deepranjan Sarkar
- grid.411507.60000 0001 2287 8816Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005 India
| | - Ardith Sankar
- grid.411507.60000 0001 2287 8816Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005 India
| | - O. Siva Devika
- grid.411507.60000 0001 2287 8816Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005 India
| | - Sonam Singh
- grid.411507.60000 0001 2287 8816Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005 India
| | - Shikha
- grid.506070.4Krishi Vigyan Kendra, Ranichauri, Veer Chandra Singh Garhwali Uttarakhand University of Horticulture and Forestry, Tehri Garhwal, 249199 Uttarakhand India
| | - Manoj Parihar
- grid.473812.b0000 0004 1755 9396Crop Production Division, ICAR-Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora, 263601 Uttarakhand India
| | - Amitava Rakshit
- grid.411507.60000 0001 2287 8816Department of Soil Science and Agricultural Chemistry, Institute of Agricultural Sciences, Banaras Hindu University, Uttar Pradesh, Varanasi, 221005 India
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandal’s, Arts, Science & Commerce College, 425409, Shahada, Maharashtra India
| | - Abdul Gafur
- Sinarmas Forestry Corporate Research and Development, Perawang, 28772 Indonesia
| | - Mohammad Javed Ansari
- grid.411529.a0000 0001 0374 9998Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand Univesity Bareilly), Moradabad, Uttar Pradesh 244001 India
| | - Subhan Danish
- grid.411501.00000 0001 0228 333XDepartment of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, 60800 Pakistan ,grid.7112.50000000122191520Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300 Brno, Czech Republic
| | - Shah Fahad
- grid.467118.d0000 0004 4660 5283Department of Agronomy, The University of Haripur, Haripur, 22620 Pakistan
| | - Rahul Datta
- grid.7112.50000000122191520Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300 Brno, Czech Republic
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40
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Mineralization of Farm Manures and Slurries under Aerobic and Anaerobic Conditions for Subsequent Release of Phosphorus and Sulphur in Soil. SUSTAINABILITY 2021. [DOI: 10.3390/su13158605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A good understanding of nutrient release from manure or compost after application through mineralization is important to assure meeting the nutrient demand of crops, to secure timely fertilizer application and to enhance nutrient use efficiency. The current study was done to evaluate phosphorus (P) and sulphur (S) release patterns from different types of manures viz. cow dung, cow dung slurry, tricho-compost, vermicompost, poultry manure, poultry manure slurry and mungbean residues. The mineralization study was performed under aerobic (field capacity) and anaerobic (waterlogging) conditions for 180 days at 25 ± 1 °C in the laboratory. The release of P and S showed the highest values within 75–180 and 75–150 days, respectively, and was always higher in aerobic conditions than in anaerobic conditions. The first-order kinetic cumulative model was a good fit for mineralization, which was significantly influenced by manure type, soil moisture level and incubation period. Poultry manure slurry exerted the highest P and S release under both moisture conditions. Both slurries showed higher potential mineralization, with a lower rate constant for these elements compared to that in their manure states. Hence, appropriate manures should be chosen and applied in the proper quantity to provide exact amounts of nutrients, to increase crops nutrient use efficiency and to formulate correct fertilizer recommendations.
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41
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Faridvand S, Rezaei‐Chiyaneh E, Battaglia ML, Gitari HI, Raza MA, Siddique KHM. Application of bio and chemical fertilizers improves yield, and essential oil quantity and quality of Moldavian balm (
Dracocephalum moldavica
L.) intercropped with mung bean (
Vigna radiata
L.). Food Energy Secur 2021. [DOI: 10.1002/fes3.319] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shahin Faridvand
- Department of Forest and Rangeland West Azerbaijan Agricultural and Natural Resources Research and Education Center Urmia Iran
| | - Esmaeil Rezaei‐Chiyaneh
- Department of Plant Production and Genetics Faculty of Agriculture Urmia University Urmia Iran
| | | | - Harun I. Gitari
- Department of Agricultural Science and Technology School of Agriculture and Enterprise Development Kenyatta University PO Box 43844‐00100 Nairobi Kenya
| | - Muhammad Ali Raza
- College of Agronomy Sichuan Agricultural University Chengdu Sichuan 611130 China
| | - Kadambot H. M. Siddique
- The UWA Institute of Agriculture The University of Western Australia Perth WA 6009 Australia
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42
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Heenan-Daly D, Coughlan S, Dillane E, Doyle Prestwich B. Volatile Compounds From Bacillus, Serratia, and Pseudomonas Promote Growth and Alter the Transcriptional Landscape of Solanum tuberosum in a Passively Ventilated Growth System. Front Microbiol 2021; 12:628437. [PMID: 34367077 PMCID: PMC8333284 DOI: 10.3389/fmicb.2021.628437] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 06/07/2021] [Indexed: 11/15/2022] Open
Abstract
The interaction of an array of volatile organic compounds (VOCs) termed bacterial volatile compounds (BVCs) with plants is now a major area of study under the umbrella of plant-microbe interactions. Many growth systems have been developed to determine the nature of these interactions in vitro. However, each of these systems have their benefits and drawbacks with respect to one another and can greatly influence the end-point interpretation of the BVC effect on plant physiology. To address the need for novel growth systems in BVC-plant interactions, our study investigated the use of a passively ventilated growth system, made possible via Microbox® growth chambers, to determine the effect of BVCs emitted by six bacterial isolates from the genera Bacillus, Serratia, and Pseudomonas. Solid-phase microextraction GC/MS was utilized to determine the BVC profile of each bacterial isolate when cultured in three different growth media each with varying carbon content. 66 BVCs were identified in total, with alcohols and alkanes being the most abundant. When cultured in tryptic soy broth, all six isolates were capable of producing 2,5-dimethylpyrazine, however BVC emission associated with this media were deemed to have negative effects on plant growth. The two remaining media types, namely Methyl Red-Voges Proskeur (MR-VP) and Murashige and Skoog (M + S), were selected for bacterial growth in co-cultivation experiments with Solanum tuberosum L. cv. ‘Golden Wonder.’ The BVC emissions of Bacillus and Serratia isolates cultured on MR-VP induced alterations in the transcriptional landscape of potato across all treatments with 956 significantly differentially expressed genes. This study has yielded interesting results which indicate that BVCs may not always broadly upregulate expression of defense genes and this may be due to choice of plant-bacteria co-cultivation apparatus, bacterial growth media and/or strain, or likely, a complex interaction between these factors. The multifactorial complexities of observed effects of BVCs on target organisms, while intensely studied in recent years, need to be further elucidated before the translation of lab to open-field applications can be fully realized.
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Affiliation(s)
- Darren Heenan-Daly
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland.,Environmental Research Institute, University College Cork, Cork, Ireland
| | - Simone Coughlan
- School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, Ireland
| | - Eileen Dillane
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland.,Environmental Research Institute, University College Cork, Cork, Ireland
| | - Barbara Doyle Prestwich
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland.,Environmental Research Institute, University College Cork, Cork, Ireland
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43
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Irshad M, Ullah F, Fahad S, Mehmood S, Khan AU, Brtnicky M, Kintl A, Holatko J, Irshad I, El-Sharnouby M, EL Sabagh A, Datta R, Danish S. Evaluation of Jatropha curcas L. leaves mulching on wheat growth and biochemical attributes under water stress. BMC PLANT BIOLOGY 2021; 21:303. [PMID: 34187364 PMCID: PMC8240320 DOI: 10.1186/s12870-021-03097-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/15/2021] [Indexed: 05/24/2023]
Abstract
BACKGROUND Organic mulches are widely used in crop production systems. Due to their benefits in improving soil fertility, retention of soil moisture and weed control. Field experiments were conducted during wheat growing seasons of 2018-2019 and 2019-2020 to evaluate the effects of Jatropha leaves mulch on the growth of wheat varieties 'Wadan-17' (rainfed) and 'Pirsabaq-2013' (irrigated) under well irrigated and water stress conditions (non-irrigated maintaining 40% soil field capacity). Jatropha mulch was applied to the soil surface at 0, 1, 3 and 5 Mg ha-1 before sowing grains in the field. Under conditions of water stress, Jatropha mulch significantly maintained the soil moisture content necessary for normal plant growth. RESULTS We noted a decrease in plant height, shoot and root fresh/dry weight, leaf area, leaf relative water content (LRWC), chlorophyll, and carotenoid content due to water stress. However, water stress caused an increase in leaf and root phenolics content, leaf soluble sugars and electrolytes leakage. We observed that Jatropha mulch maintained LRWC, plant height, shoot and root fresh/dry weight, leaf area and chlorophyll content under water stress. Moreover, water stress adverse effects on leaf soluble sugar content and electrolyte leakage were reversed to normal by Jatropha mulch. CONCLUSION Therefore, it may be concluded that Jatropha leaves mulch will minimize water stress adverse effects on wheat by maintaining soil moisture and plant water status.
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Affiliation(s)
- Muhammad Irshad
- Department of Botany, University of Science and Technology Bannu, KP Bannu, Pakistan
| | - Faizan Ullah
- Department of Botany, University of Science and Technology Bannu, KP Bannu, Pakistan
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bio Resource, College of Tropical Crops, Hainan University, Haikou, 570228 China
- Department of Agronomy, The University of Haripur, Haripur, 22620 Pakistan
| | - Sultan Mehmood
- Department of Botany, University of Science and Technology Bannu, KP Bannu, Pakistan
| | - Asif Ullah Khan
- Department of Botany, University of Science and Technology Bannu, KP Bannu, Pakistan
| | - Martin Brtnicky
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of Agrisciences, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Antonin Kintl
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of Agrisciences, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Agricultural Research, Ltd., 664 41 Troubsko, Czech Republic
| | - Jiri Holatko
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of Agrisciences, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
| | - Inam Irshad
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38000 Pakistan
| | - Mohamed El-Sharnouby
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, 21944 Saudi Arabia
| | - Ayman EL Sabagh
- Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Rahul Datta
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska 3, Brno, Czech Republic
| | - Subhan Danish
- Departments of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, 60800 Pakistan
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44
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Mussarat M, Ali H, Muhammad D, Ahmad Mian I, Khan S, Adnan M, Fahad S, Wahid F, Dawar K, Ali S, Zia A, Ahmad M, Khan S, Ali Shah W, Romman M, Parvez R, H Siddiqui M, Khan A, Wang D, Jiang X. Comparing the phosphorus use efficiency of pre-treated (organically) rock phosphate with soluble P fertilizers in maize under calcareous soils. PeerJ 2021; 9:e11452. [PMID: 34113489 PMCID: PMC8158173 DOI: 10.7717/peerj.11452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/23/2021] [Indexed: 11/20/2022] Open
Abstract
In calcareous soils, phosphorus (P) availability to plant is impaired due to the formation of insoluble complexes with calcium and magnesium. Therefore, this study was executed to compare the P use efficiency (PUE) of four different P sources [rock phosphate (RP), acidulated rock phosphate (ARP), single super phosphate (SSP) and di ammonium phosphate (DAP)] alone or pre-treated with organic amendments (farm yard manure (FYM) enriched compost, simple compost and humic acid (HA)) along with control in maize crop under calcareous soils. All treatments irrespective of P sources received 90 kg P2O5 ha-1. Phosphorus application regardless of its sources and combination with organic amendments significantly improved maize growth, yield as well as P uptake and PUE. Rock phosphate when applied alone was recorded inferior but its performance significantly improved with compost or its pre-addition with FYM and HA, that further enhanced upon acidulation. Maize grain yield increased by 21, 22.2, 67.9 and 94% with RP, ARP, ARP enriched compost and ARP+ compost respectively, over control. Similarly, PUE of DAP improved from 31.7 to 43.1 and 39 with sample and enriched compost correspondingly. Post-harvest soil and grain P were at par for SSP, ARP and DAP alone or in conjugation with organic amendments when averaged across the amendments. These results suggested that pretreatment of P sources with organic amendments is an economical and more feasible approach to improve maize yield and PUE. Moreover, on-farm acidulation of RP may give at par results with SSP and DAP with cheaper rate and hence recommended for P management in maize in alkaline calcareous soils.
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Affiliation(s)
- Maria Mussarat
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Hazrat Ali
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Dost Muhammad
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Ishaq Ahmad Mian
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Shadman Khan
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Muhammad Adnan
- Department of Agriculture, The University of Swabi, Swabi, Khyber PakhtunKhwa, Pakistan
| | - Shah Fahad
- Department of Agronomy, University of Harripur, Harripur, Khyber Pakhtunkhwa, Pakistan.,Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Hainan, Haikou, China
| | - Fazli Wahid
- Department of Agriculture, The University of Swabi, Swabi, Khyber PakhtunKhwa, Pakistan
| | - Khadim Dawar
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Shamsher Ali
- Department of Soil and Environmental Science (AMK) campus, The University of Agriculture Peshawar, Mardan, Khyber PakhtunKhwa, Pakistan
| | - Afia Zia
- Department of Agricultural Chemistry, The University of Agriculture Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Manzoor Ahmad
- Department of Agriculture, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Sowm Khan
- Department of Soil and Environmental Science, The University of Agriculture Peshawar, Peshawar, Khyber PakhtunKhwa, Pakistan
| | - Wajid Ali Shah
- Department of Agriculture, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Romman
- Department of Botany, University of Chitral, Chitral, KP, Pakistan
| | - Rainaz Parvez
- Department of Botany, Government Girls Degree College, Dargai Malakand, KP, Pakistan
| | - Manzer H Siddiqui
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abid Khan
- Department of Horticulture, The University of Haripur, Harripur, KPK, Pakistan
| | - Depeng Wang
- College of Life Science, Linyi University, Linyi City, Shandong Province, China
| | - Xue Jiang
- College of Life Sciences and Technology, Xinjiang University, Urumqi City, Xinjiang Province, China
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45
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Alam H, Khattak JZK, Ksiksi TS, Saleem MH, Fahad S, Sohail H, Ali Q, Zamin M, El-Esawi MA, Saud S, Jiang X, Alwahibi MS, Alkahtani J. Negative impact of long-term exposure of salinity and drought stress on native Tetraena mandavillei L. PHYSIOLOGIA PLANTARUM 2021; 172:1336-1351. [PMID: 33179272 DOI: 10.1111/ppl.13273] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 05/22/2023]
Abstract
Tetraena mandavillei L. is a perennial shrub native to the Middle Eastern countries of Asia, which is extensively regarded as a drought-tolerant plant. However, the plant reduces growth and biomass when grown in high concentrations of sodium chloride in the soil. We conducted a pot experiment to influence the negative impact of different levels of salinity (0, 10, and 20 dSm-1 ) and drought stress (100, 80, 60, and 40% water field capacity), to study different growth-related parameters, physiological alterations and ion uptake by T. mandavillei. Both salinity and drought stress caused a negative impact by affecting several attributes of T. mandavillei, but the plants showed some resistance against drought stress conditions in terms of growth and biomass. In addition to that, we noticed that a combinatorial and individual impact of drought and salinity stress decreased photosynthetic pigments and gas exchange parameters in T. mandavillei. Results also depicted that the combination of the abiotic stress conditions drought and salinity induced reactive oxygen species (ROS), indicating that the plants undergo oxidative damaged. However, due to the active plant defense system, the plant enhanced its performance under abiotic stress conditions, but due to the severe drought condition (40% water field capacity), a significant (P < 0.05) decrease in the activities of antioxidant compounds was caused. Furthermore, osmolytes also increased under both salinity and drought stress conditions in this study. Our results also showed that increased salinity and drought stress in the soil caused a significant increase in sodium (Na+ ) and chloride (Cl- ) ions in roots and shoots of T. mandavillei. In contrast to that, the contents of Calcium (Ca2+ ) and potassium (K+ ) were decreased in all organs of the plants with increasing levels of salinity and drought stress. Taken together, T. mandavillei can be classified as a facultative halophyte with the ability to tolerate drought stress and using salt accumulation mechanisms to tolerate salinity stress.
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Affiliation(s)
- Hasnain Alam
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Jabar Z K Khattak
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Taoufik S Ksiksi
- Department of Biology, College of Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Muhammad H Saleem
- MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shah Fahad
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou, China
- Department of Agronomy, The University of Haripur, Haripur, Pakistan
| | - Hamza Sohail
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Qasim Ali
- Department of Botany, Government College University, Faisalabad, Pakistan
| | - Muhammad Zamin
- Department of Agriculture, University of Swabi, Swabi, Pakistan
| | | | - Shah Saud
- Department of Horticulture, Northeast Agriculture University, Harbin, China
| | - Xue Jiang
- College of Life Sciences and Technology, Xinjiang University, Urumqi, China
| | - Mona S Alwahibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Jawaher Alkahtani
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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46
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Effects of the Combinations of Rhizobacteria, Mycorrhizae, and Seaweed, and Supplementary Irrigation on Growth and Yield in Wheat Cultivars. PLANTS 2021; 10:plants10040811. [PMID: 33924128 PMCID: PMC8074330 DOI: 10.3390/plants10040811] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/04/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022]
Abstract
Wheat is a staple food consumed by the majority of people in the world and its production needs to be doubled to feed the growing population. On the other hand, global wheat productivity is greatly affected due to drought and low fertility of soil under arid and semi-arid regions. Application of supplementary irrigation and plant growth-promoting rhizobacteria (PGPR) has been suggested as sustainable measures to combat drought stress and to improve soil fertility and, hence, crop yield. This research was undertaken to study the effect of supplementary irrigation together with a combination of various PGPR on the growth and yield of two wheat cultivars, namely Sardari and Sirvan. The results of variance analysis (mean of squares) showed that the effect of irrigation, cultivar, and irrigation and biofertilizer and irrigation on height, spike length, seed/spike, and numbers of spikes/m2, 1000-seed weight, and grain yield were significant at 1% probability level. The effect of cultivar and irrigation interactions showed that the highest grain yield was obtained in a treatment with two additional irrigations in Sirvan cultivar (5015.0 kg/ha) and Sardari (4838.9 kg/ha) as compared to the 3598 kg/ha and 3598.3 kg/h grain yield in Sirvan and Sardari cultivars with similar treatment, but without irrigation, i.e., dryland farming. Drought conditions significantly affected the wheat grain yield while supplementary irrigation resulted in 39.38% and 34.48% higher yields in Sirvan and Sardari cultivars.
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Zafar-Ul-Hye M, Tahzeeb-Ul-Hassan M, Wahid A, Danish S, Khan MJ, Fahad S, Brtnicky M, Hussain GS, Battaglia ML, Datta R. Compost mixed fruits and vegetable waste biochar with ACC deaminase rhizobacteria can minimize lead stress in mint plants. Sci Rep 2021; 11:6606. [PMID: 33758248 PMCID: PMC7988167 DOI: 10.1038/s41598-021-86082-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 03/10/2021] [Indexed: 02/06/2023] Open
Abstract
High lead (Pb) concentration in soils is becoming a severe threat to human health. It also deteriorates plants, growth, yield and quality of food. Although the use of plant growth-promoting rhizobacteria (PGPR), biochar and compost can be effective environment-friendly amendments for decreasing Pb stress in crop plants, the impacts of their simultaneous co-application has not been well documented. Thus current study was carried, was conducted to investigate the role of rhizobacteria and compost mixed biochar (CB) under Pb stress on selected soil properties and agronomic parameters in mint (Mentha piperita L.) plants. To this end, six treatments were studied: Alcaligenes faecalis, Bacillus amyloliquefaciens, CB, PGPR1 + CB, PGPR2 + CB and control. Results showed that the application A. faecalis + CB significantly decreased soil pH and EC over control. However, OM, nitrogen, phosphorus and potassium concentration were significantly improved in the soil where A. faecalis + CB was applied over control. The A. faecalis + CB treatment significantly improved mint plant root dry weight (58%), leaves dry weight (32%), chlorophyll (37%), and N (46%), P (39%) and K (63%) leave concentration, while also decreasing the leaves Pb uptake by 13.5% when compared to the unamended control. In conclusion, A. faecalis + CB has a greater potential to improve overall soil quality, fertility and mint plant productivity under high Pb soil concentration compared to the sole application of CB and A. faecalis.
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Affiliation(s)
- Muhammad Zafar-Ul-Hye
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, 60800, Pakistan
| | - Muhammad Tahzeeb-Ul-Hassan
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, 60800, Pakistan
| | - Abdul Wahid
- Department of Environmental Sciences, Bahauddin Zakariya University, Multan, Punjab, 60800, Pakistan
| | - Subhan Danish
- Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, 60800, Pakistan.
| | - Muhammad Jamil Khan
- Department of Soil and Environmental Sciences, Faculty of Agriculture, Gomal University, Dera Ismail Khan, KPK, Pakistan
| | - Shah Fahad
- Department of Agronomy, The University of Haripur, Haripur, Khyber Pakhtunkhwa, 22620, Pakistan.
| | - Martin Brtnicky
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300, Brno, Czech Republic
- Faculty of Chemistry, Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Purkynova 118, 62100, Brno, Czech Republic
| | - Ghulam Sabir Hussain
- Department of Technical Services, Fatima Agri Sales and Services, Bahawalpur, Punjab, Pakistan
| | | | - Rahul Datta
- Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemedelska1, 61300, Brno, Czech Republic.
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Assessment of Acidic Biochar on the Growth, Physiology and Nutrients Uptake of Maize (Zea mays L.) Seedlings under Salinity Stress. SUSTAINABILITY 2021. [DOI: 10.3390/su13063150] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The application of an acidic biochar can improve plant growth and soil properties in saline conditions. In this study, we investigated the effect of acidic biochar on plant growth and nutrients contents in saline soil. Seven treatments were arranged in a complete randomized design, including control (CK), 0, 30, and 45 g biochar added to a soil having 1% and 1.5% salts; these treatments were termed as B0S1, B30S1, B45S1 and B0S1.5, B30S1.5, B45S1.5 respectively. Experimental results showed that the plant height, leaves plant−1, leaf area, and shoot fresh and dry biomass, and root fresh and dry biomass were increased for the B45S1.5, respectively. Similarly, the highest total nitrogen (TN), total phosphorus (TP), total potassium (TK), and total sodium (Na) concentration in maize shoot were observed for B30S1, B0S1.5, CK, and B0S1.5, respectively. The highest concentrations of TN, TP, TK, and Na in root were obtained with the treatments B0S1, B0S1, B45S1, and B0S1, respectively. Soil pH, and EC decreased and nutrients concentration improved by the addition of acidic biochar. We conclude that the use of acidic biochar can be a potential source for the improvement of maize plant growth as well as mitigate the adverse effect of salt stress.
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Accentuating the Role of Nitrogen to Phosphorus Ratio on the Growth and Yield of Wheat Crop. SUSTAINABILITY 2021. [DOI: 10.3390/su13042253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nitrogen (N) and Phosphorus (P) deficiency is a major yield limiting factor across the globe and their proper management plays a vital role in optimizing crop yield. This field experiment was conducted to assess the impact of soil and plant nitrogen N and P ratio on the growth and yield of wheat (Triticum aestivum L.) in alkaline calcareous soil. The study consisted of various levels of nitrogen (0, 40, 80, and 160 kg ha−1 as urea) and phosphorus (0, 30, 60, and 90 kg P2O5 ha−1 as diammonium phosphate), and was carried out in randomized complete block design (RCBD) with factorial arrangement having three replications. The result showed that the addition of 160 kg N ha−1 significantly improved biological yield (10,052 kg ha−1), grain weight (3120 kg ha−1), chlorophyll content at tillering stage soil plant analysis development (SPAD) value (35.38), N uptake in straw (33.42 kg ha−1), and K uptake in straw (192 kg ha−1) compared to other N levels. In case of P, 90 kg P2O5 ha−1 had resulted maximum biological yield (9852 kg ha−1), grain yield (3663 kg ha−1), chlorophyll content at tillering stage (SPAD value 34.36), P (6.68 mg kg−1) and K (171 kg ha−1) uptake in straw. The sole use of N and P have positively influenced the biological and grain yield but their interaction didn’t response to biological yield. The present study reveals that SPAD value (chlorophyll meter) is the better choice for determining plant N and P concentrations to estimate the yield potential.
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Drought Stress Impacts on Plants and Different Approaches to Alleviate Its Adverse Effects. PLANTS 2021; 10:plants10020259. [PMID: 33525688 PMCID: PMC7911879 DOI: 10.3390/plants10020259] [Citation(s) in RCA: 324] [Impact Index Per Article: 108.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022]
Abstract
Drought stress, being the inevitable factor that exists in various environments without recognizing borders and no clear warning thereby hampering plant biomass production, quality, and energy. It is the key important environmental stress that occurs due to temperature dynamics, light intensity, and low rainfall. Despite this, its cumulative, not obvious impact and multidimensional nature severely affects the plant morphological, physiological, biochemical and molecular attributes with adverse impact on photosynthetic capacity. Coping with water scarcity, plants evolve various complex resistance and adaptation mechanisms including physiological and biochemical responses, which differ with species level. The sophisticated adaptation mechanisms and regularity network that improves the water stress tolerance and adaptation in plants are briefly discussed. Growth pattern and structural dynamics, reduction in transpiration loss through altering stomatal conductance and distribution, leaf rolling, root to shoot ratio dynamics, root length increment, accumulation of compatible solutes, enhancement in transpiration efficiency, osmotic and hormonal regulation, and delayed senescence are the strategies that are adopted by plants under water deficit. Approaches for drought stress alleviations are breeding strategies, molecular and genomics perspectives with special emphasis on the omics technology alteration i.e., metabolomics, proteomics, genomics, transcriptomics, glyomics and phenomics that improve the stress tolerance in plants. For drought stress induction, seed priming, growth hormones, osmoprotectants, silicon (Si), selenium (Se) and potassium application are worth using under drought stress conditions in plants. In addition, drought adaptation through microbes, hydrogel, nanoparticles applications and metabolic engineering techniques that regulate the antioxidant enzymes activity for adaptation to drought stress in plants, enhancing plant tolerance through maintenance in cell homeostasis and ameliorates the adverse effects of water stress are of great potential in agriculture.
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