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Dasila H, Sah VK, Jaggi V, Kumar A, Tewari L, Taj G, Chaturvedi S, Perveen K, Bukhari NA, Siang TC, Sahgal M. Cold-tolerant phosphate-solubilizing Pseudomonas strains promote wheat growth and yield by improving soil phosphorous (P) nutrition status. Front Microbiol 2023; 14:1135693. [PMID: 37025630 PMCID: PMC10072159 DOI: 10.3389/fmicb.2023.1135693] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 02/09/2023] [Indexed: 03/16/2023] Open
Abstract
It is well-known that phosphate-solubilizing bacteria (PSB) promote crop growth and yield. The information regarding characterization of PSB isolated from agroforestry systems and their impact on wheat crops under field conditions is rarely known. In the present study, we aim to develop psychrotroph-based P biofertilizers, and for that, four PSB strains (Pseudomonas sp. L3, Pseudomonas sp. P2, Streptomyces sp. T3, and Streptococcus sp. T4) previously isolated from three different agroforestry zones and already screened for wheat growth under pot trial conditions were evaluated on wheat crop under field conditions. Two field experiments were employed; set 1 includes PSB + recommended dose of fertilizers (RDF) and set 2 includes PSB – RDF. In both field experiments, the response of the PSB-treated wheat crop was significantly higher compared to the uninoculated control. In field set 1, an increase of 22% in grain yield (GY), 16% in biological yield (BY), and 10% in grain per spike (GPS) was observed in consortia (CNS, L3 + P2) treatment, followed by L3 and P2 treatments. Inoculation of PSB mitigates soil P deficiency as it positively influences soil alkaline phosphatase (AP) and soil acid phosphatase (AcP) activity which positively correlated with grain NPK %. The highest grain NPK % was reported in CNS-treated wheat with RDF (N–0.26%, P–0.18%, and K-1.66%) and without RDF (N-0.27, P-0.26, and K-1.46%), respectively. All parameters, including soil enzyme activities, plant agronomic data, and yield data were analyzed by principal component analysis (PCA), resulting in the selection of two PSB strains. The conditions for optimal P solubilization, in L3 (temperature-18.46, pH–5.2, and glucose concentration–0.8%) and P2 (temperature-17°C, pH–5.0, and glucose concentration–0.89%), were obtained through response surface methodology (RSM) modeling. The P solubilizing potential of selected strains at <20°C makes them a suitable candidate for the development of psychrotroph-based P biofertilizers. Low-temperature P solubilization of the PSB strains from agroforestry systems makes them potential biofertilizers for winter crops.
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Affiliation(s)
- Hemant Dasila
- Department of Microbiology, Akal College of Basic Sciences, Eternal University, Rajgarh, Himachal Pradesh, India
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - V. K. Sah
- Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Vandana Jaggi
- Department of Pediatrics and Human Development, Michigan State University, Grand Rapids, MI, United States
| | - Arun Kumar
- Department of Agronomy, Dr. Khem Singh Gill, Akal College of Agriculture, Eternal University, Rajgarh, Himachal Pradesh, India
| | - Lakshmi Tewari
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Gohar Taj
- Department of Molecular Biology and Biotechnology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Sumit Chaturvedi
- Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Kahkashan Perveen
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Najat A. Bukhari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Tan Ching Siang
- School of Pharmacy, KPJ Healthcare University College, Nilai, Malaysia
- Tan Ching Siang
| | - Manvika Sahgal
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, India
- *Correspondence: Manvika Sahgal
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Yu H, Wu X, Zhang G, Zhou F, Harvey PR, Wang L, Fan S, Xie X, Li F, Zhou H, Zhao X, Zhang X. Identification of the Phosphorus-Solubilizing Bacteria Strain JP233 and Its Effects on Soil Phosphorus Leaching Loss and Crop Growth. Front Microbiol 2022; 13:892533. [PMID: 35572684 PMCID: PMC9100411 DOI: 10.3389/fmicb.2022.892533] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Phosphorus (P) is one of the most limiting nutrients in global agricultural ecosystems, and phosphorus-solubilizing bacteria (PSB) can convert insoluble P into soluble P, thereby improving the absorption and use of soil P by plants. Increasing leaching loss of soil P due to PSB that could lead to water eutrophication is a major concern, although no direct experimental evidence is available to evaluate these effects. In this study, a highly efficient PSB strain, Pseudomonas sp. JP233, was isolated from soil and its P-solubilizing agent was identified by metabolomics and HPLC analyses. The effects of JP233 on P contents in soil leachates were also analyzed by microcosm leaching experiments in the absence and presence of maize. JP233 could solubilize insoluble P into soluble forms, and the molybdate reactive phosphorus (MRP) content reached 258.07 mg/L in NBRIP medium containing 5 g/L Ca3(PO4)2 within 48 h. Metabolomics analysis demonstrated that the organic acid involved in JP233 P solubilization was primarily 2-keto gluconic acid (2KGA). Further, HPLC analysis revealed that 2KGA contents rapidly accumulated to 19.33 mg/mL within 48 h. Microcosm leaching experiments showed that MRP and total phosphorus (TP) contents in soil leaching solutions were not significantly higher after JP233 inoculation. However, inoculation with JP233 into maize plant soils significantly decreased MRP and TP contents in the soil leaching solutions on days 14 (P < 0.01), 21 (P < 0.01), and 28 (P < 0.05). Inoculation with strain JP233 also significantly increased the biomass of maize aerial components and that of whole plants (P < 0.05). Thus, strain JP233 exhibited a significant plant-growth-promoting effect on maize development. In conclusion, the application of PSB into soils does not significantly increase P leachate loss. Rather, the application of PSB can help reduce P leachate loss, while significantly promoting plant absorption and use of soil P.
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Affiliation(s)
- Haiyang Yu
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Xiaoqing Wu
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Guangzhi Zhang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Fangyuan Zhou
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Paul R. Harvey
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
- CSIRO Agriculture and Food, Glen Osmond, SA, Australia
| | - Leilei Wang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Susu Fan
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Xueying Xie
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Feng Li
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Hongzi Zhou
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Xiaoyan Zhao
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
| | - Xinjian Zhang
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji’nan, China
- *Correspondence: Xinjian Zhang,
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Rizvi A, Ahmed B, Khan MS, Umar S, Lee J. Psychrophilic Bacterial Phosphate-Biofertilizers: A Novel Extremophile for Sustainable Crop Production under Cold Environment. Microorganisms 2021; 9:2451. [PMID: 34946053 PMCID: PMC8704983 DOI: 10.3390/microorganisms9122451] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/18/2022] Open
Abstract
Abiotic stresses, including low-temperature environments, adversely affect the structure, composition, and physiological activities of soil microbiomes. Also, low temperatures disturb physiological and metabolic processes, leading to major crop losses worldwide. Extreme cold temperature habitats are, however, an interesting source of psychrophilic and psychrotolerant phosphate solubilizing bacteria (PSB) that can ameliorate the low-temperature conditions while maintaining their physiological activities. The production of antifreeze proteins and expression of stress-induced genes at low temperatures favors the survival of such organisms during cold stress. The ability to facilitate plant growth by supplying a major plant nutrient, phosphorus, in P-deficient soil is one of the novel functional properties of cold-tolerant PSB. By contrast, plants growing under stress conditions require cold-tolerant rhizosphere bacteria to enhance their performance. To this end, the use of psychrophilic PSB formulations has been found effective in yield optimization under temperature-stressed conditions. Most of the research has been done on microbial P biofertilizers impacting plant growth under normal cultivation practices but little attention has been paid to the plant growth-promoting activities of cold-tolerant PSB on crops growing in low-temperature environments. This scientific gap formed the basis of the present manuscript and explains the rationale for the introduction of cold-tolerant PSB in competitive agronomic practices, including the mechanism of solubilization/mineralization, release of biosensor active biomolecules, molecular engineering of PSB for increasing both P solubilizing/mineralizing efficiency, and host range. The impact of extreme cold on the physiological activities of plants and how plants overcome such stresses is discussed briefly. It is time to enlarge the prospects of psychrophilic/psychrotolerant phosphate biofertilizers and take advantage of their precious, fundamental, and economical but enormous plant growth augmenting potential to ameliorate stress and facilitate crop production to satisfy the food demands of frighteningly growing human populations. The production and application of cold-tolerant P-biofertilizers will recuperate sustainable agriculture in cold adaptive agrosystems.
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Affiliation(s)
- Asfa Rizvi
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India; (A.R.); (S.U.)
| | - Bilal Ahmed
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
| | - Mohammad Saghir Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202002, India;
| | - Shahid Umar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, Hamdard Nagar, New Delhi 110062, India; (A.R.); (S.U.)
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
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Adhikari P, Jain R, Sharma A, Pandey A. Plant Growth Promotion at Low Temperature by Phosphate-Solubilizing Pseudomonas Spp. Isolated from High-Altitude Himalayan Soil. MICROBIAL ECOLOGY 2021; 82:677-687. [PMID: 33512536 DOI: 10.1007/s00248-021-01702-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
Scarcity of arable land, limited soil nutrient availability, and low-temperature conditions in the Himalayan regions need to be smartly managed using sustainable approaches for better crop yields. Microorganisms, able to efficiently solubilize phosphate at low temperatures, provide an opportunity to promote plant growth in an ecofriendly way. In this study, we have investigated the ability of psychrotolerant Pseudomonas spp., isolated from high altitudes of Indian Himalaya to solubilize P at low temperature. Quantitative estimation of phosphate solubilization and production of relevant enzymes at two different temperatures (15 and 25 °C) was performed for 4 out of 11 selected isolates, namely, GBPI_506 (Pseudomonas sp.), GBPI_508 (Pseudomonas palleroniana), GBPI_Hb61 (Pseudomonas proteolytica), and GBPI_CDB143 (Pseudomonas azotoformans). Among all, isolate GBPI_CDB143 showed highest efficiency to solubilize tri-calcium phosphate (110.50 ± 3.44 μg/mL) at 25 °C after 6 days while the culture supernatants of isolate GBPI_506 displayed the highest phytase activity (15.91 ± 0.35 U/mL) at 15 °C and alkaline phosphatase (3.09 ± 0.07 U/mL) at 25 °C in 6 and 9 days, respectively. Out of five different organic acids quantified, oxalic acid and malic acid were produced in maximum quantity by all four isolates. With the exception of GBPI_508, inoculation of bacteria promoted overall growth (rosette diameter, leaf area, and biomass) of Arabidopsis thaliana plants as compared to uninoculated control plants in growth chamber conditions. The plant growth promotion by each bacterial isolate was further validated by monitoring root colonization in the inoculated plants. These bacterial isolates with low-temperature phosphate solubilization potential along with phosphatases and phytase activity at low temperature could be harnessed for sustainable crop production in P-deficient agricultural soils under mountain ecosystems.
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Affiliation(s)
- Priyanka Adhikari
- Center for Environmental Assessment and Climate Change, G.B. Pant National Institute of Himalayan Environment, Almora, Uttarakhand, 263643, India
| | - Rahul Jain
- Biotechnology Division, CSIR - Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176061, India
| | - Avinash Sharma
- National Centre for Cell Science, Pune, Maharashtra, 411007, India
| | - Anita Pandey
- Center for Environmental Assessment and Climate Change, G.B. Pant National Institute of Himalayan Environment, Almora, Uttarakhand, 263643, India.
- Department of Biotechnology, Graphic Era (Deemed to be University), Bell Road, Clement Town, Dehradun, Uttarakhand, 248002, India.
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Ribeiro IDA, Volpiano CG, Vargas LK, Granada CE, Lisboa BB, Passaglia LMP. Use of Mineral Weathering Bacteria to Enhance Nutrient Availability in Crops: A Review. FRONTIERS IN PLANT SCIENCE 2020; 11:590774. [PMID: 33362817 PMCID: PMC7759553 DOI: 10.3389/fpls.2020.590774] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/26/2020] [Indexed: 05/19/2023]
Abstract
Rock powders are low-cost potential sources of most of the nutrients required by higher plants for growth and development. However, slow dissolution rates of minerals represent an obstacle to the widespread use of rock powders in agriculture. Rhizosphere processes and biological weathering may further enhance mineral dissolution since the interaction between minerals, plants, and bacteria results in the release of macro- and micronutrients into the soil solution. Plants are important agents in this process acting directly in the mineral dissolution or sustaining a wide diversity of weathering microorganisms in the root environment. Meanwhile, root microorganisms promote mineral dissolution by producing complexing ligands (siderophores and organic acids), affecting the pH (via organic or inorganic acid production), or performing redox reactions. Besides that, a wide variety of rhizosphere bacteria and fungi could also promote plant development directly, synergistically contributing to the weathering activity performed by plants. The inoculation of weathering bacteria in soil or plants, especially combined with the use of crushed rocks, can increase soil fertility and improve crop production. This approach is more sustainable than conventional fertilization practices, which may contribute to reducing climate change linked to agricultural activity. Besides, it could decrease the dependency of developing countries on imported fertilizers, thus improving local development.
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Affiliation(s)
- Igor Daniel Alves Ribeiro
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Camila Gazolla Volpiano
- Departamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Luciano Kayser Vargas
- Laboratório de Microbiologia Agrícola, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria Estadual da Agricultura, Pecuária e Desenvolvimento Rural, Porto Alegre, Brazil
| | | | - Bruno Brito Lisboa
- Laboratório de Microbiologia Agrícola, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria Estadual da Agricultura, Pecuária e Desenvolvimento Rural, Porto Alegre, Brazil
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Microbial community of biofilm inoculated from activated sludge on solubilization of phosphate rock. Biologia (Bratisl) 2019. [DOI: 10.2478/s11756-019-00258-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Eurypsychrophilic Pseudomonas spp. isolated from Venezuelan tropical glaciers as promoters of wheat growth and biocontrol agents of plant pathogens at low temperatures. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s42398-019-00072-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xiao C, Wu X, Liu T, Xu G, Chi R. Optimizations of particle size and pulp density for solubilization of rock phosphate by a microbial consortium from activated sludge. Prep Biochem Biotechnol 2017; 47:562-569. [PMID: 28032819 DOI: 10.1080/10826068.2016.1275008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Microbial solubilization of rock phosphate is getting more and more attention recently. However, the microorganisms used in previous studies were mostly single or known species, and seldom studies focused on the mixed microorganisms or microbial consortia from natural environments. In this study, a microbial consortium taken from activated sludge was used to solubilize two different mid-low-grade rock phosphates. The results showed that the microbial consortium could effectively solubilize the rock phosphates in National Botanical Research Institute's phosphate growth medium and released soluble phosphorus in the broth. The biomass increased gradually, whereas the pH decreased sharply during the solubilizing process. The maximum phosphorus solubilization was recorded at particle size of 150 µm. Higher or lower than this optimal particle size, the phosphorus solubilization decreased. The phosphorus solubilization gradually decreased with a larger pulp density from 1 to 5%, and the optimal pulp density was 1%. The solubilization level of microbial consortium varied with different rock phosphates. The results revealed that the soluble phosphorus released from high-silicon ore was higher than which from high-magnesium ore. A strong positive correlation between biomass and phosphorus solubilization in the broth was observed from regression analysis results, and the phosphorus solubilization also had a significant negative correlation with pH in the broth.
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Affiliation(s)
- Chunqiao Xiao
- a Key Laboratory for Green Chemical Process of Ministry of Education , Wuhan Institute of Technology , Wuhan , China.,b Hubei Novel Reactor and Green Chemical Technology Key Laboratory , Wuhan Institute of Technology , Wuhan , China
| | - Xiaoyan Wu
- a Key Laboratory for Green Chemical Process of Ministry of Education , Wuhan Institute of Technology , Wuhan , China.,b Hubei Novel Reactor and Green Chemical Technology Key Laboratory , Wuhan Institute of Technology , Wuhan , China
| | - Tingting Liu
- a Key Laboratory for Green Chemical Process of Ministry of Education , Wuhan Institute of Technology , Wuhan , China.,b Hubei Novel Reactor and Green Chemical Technology Key Laboratory , Wuhan Institute of Technology , Wuhan , China
| | - Guang Xu
- a Key Laboratory for Green Chemical Process of Ministry of Education , Wuhan Institute of Technology , Wuhan , China.,b Hubei Novel Reactor and Green Chemical Technology Key Laboratory , Wuhan Institute of Technology , Wuhan , China
| | - Ruan Chi
- a Key Laboratory for Green Chemical Process of Ministry of Education , Wuhan Institute of Technology , Wuhan , China.,b Hubei Novel Reactor and Green Chemical Technology Key Laboratory , Wuhan Institute of Technology , Wuhan , China
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Tomer S, Suyal DC, Shukla A, Rajwar J, Yadav A, Shouche Y, Goel R. Isolation and characterization of phosphate solubilizing bacteria from Western Indian Himalayan soils. 3 Biotech 2017; 7:95. [PMID: 28555431 DOI: 10.1007/s13205-017-0738-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 03/23/2017] [Indexed: 11/30/2022] Open
Abstract
Previous studies confirmed the existence of diversified microbial flora in the rhizosphere of Himalayan Red Kidney Bean (RKB) (Phaseolus vulgaris L.). Therefore, fifteen different temperate and subtropical regions of Western Indian Himalaya (WIH) were explored for the isolation of RKB rhizosphere-associated Phosphorus (P) solubilizing bacteria. On the basis of qPCR analysis, three soils, i.e., Munsyari, Kandakhal and Nainital soils were selected for the isolation of P solubilizers. Among 133 isolates, three bacteria viz. Lysinibaccilus macroides ST-30, Pseudomonas palleroniana N-26 and Pseudomonas jessenii MP-1 were selected based on their P solubilization potential. Moreover, in vitro seed germination assay was performed to investigate their effectiveness against four native crops viz. (Cicer arietrinum L.), (Vigna radiata L.), (Pisum sativum L.) and (Zea mays L.). Treated seeds showed significant increase in germination efficiency over their respective controls. The results suggest that Lysinibaccilus macroides ST-30, strain is a potential plant growth-promoting bacterium for chickpea (Cicer arietrinum L.) and, therefore, could be implemented as a low-cost bio-inoculant in hill agriculture system.
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Affiliation(s)
- Supriya Tomer
- Department of Microbiology, College of Basic Sciences and Humanities, G.B.P.U.A&T, Pantnagar, Uttarakhand, 263145, India
| | - Deep Chandra Suyal
- Department of Microbiology, College of Basic Sciences and Humanities, G.B.P.U.A&T, Pantnagar, Uttarakhand, 263145, India
| | - Anjana Shukla
- Department of Microbiology, College of Basic Sciences and Humanities, G.B.P.U.A&T, Pantnagar, Uttarakhand, 263145, India
| | - Jyoti Rajwar
- Department of Microbiology, College of Basic Sciences and Humanities, G.B.P.U.A&T, Pantnagar, Uttarakhand, 263145, India
| | - Amit Yadav
- Microbial Culture Collection, National Centre for Cell Science, Pune University Campus, Pune, Ganeshkhind, 411 007, India
| | - Yogesh Shouche
- Microbial Culture Collection, National Centre for Cell Science, Pune University Campus, Pune, Ganeshkhind, 411 007, India
| | - Reeta Goel
- Department of Microbiology, College of Basic Sciences and Humanities, G.B.P.U.A&T, Pantnagar, Uttarakhand, 263145, India.
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Selvakumar G, Bindu GH, Bhatt RM, Upreti KK, Paul AM, Asha A, Shweta K, Sharma M. Osmotolerant Cytokinin Producing Microbes Enhance Tomato Growth in Deficit Irrigation Conditions. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s40011-016-0766-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Suyal DC, Shukla A, Goel R. Growth promotory potential of the cold adapted diazotroph Pseudomonas migulae S10724 against native green gram (Vigna radiata (L.) Wilczek). 3 Biotech 2014; 4:665-668. [PMID: 28324315 PMCID: PMC4235881 DOI: 10.1007/s13205-014-0259-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 10/01/2014] [Indexed: 12/29/2022] Open
Abstract
It is being confirmed previously the atmospheric nitrogen fixing ability of the cold adapted Pseudomonas migulae S10724 strain at the fluctuating temperatures. Therefore, net house bioinoculation experiment was performed to determine the effectiveness of inoculation of strain S10724 on the growth enhancement of native green gram (Vigna radiata L. Wilczek). The strain significantly (p < 0.05) stimulated the growth of roots (45.3 %) and shoots (45.6 %) of green gram plants. Furthermore, other growth related parameters viz. fresh and dry weight was also found to be increased significantly. Treated plants typically showed more obvious modifications in their biochemical status also. The total chlorophyll and nitrate reductase activity was increased in S10724 inoculated plant as compared to the control one. Moreover, in vitro seed germination assay revealed that the germination was increased in S10724 strain treated seeds by 22 % at 25 °C while 25 % at 12 °C unlikely to respective controls. The results suggest that P.migulae S10724 strain is a potential plant growth promoting bacterium for legume under fluctuating temperature ranges and therefore, could be used effectively as a low cost bioinoculant in Himalayan agricultural belt successfully.
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Affiliation(s)
- Deep Chandra Suyal
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Anjana Shukla
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India
| | - Reeta Goel
- Department of Microbiology, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar, 263145, Uttarakhand, India.
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Moreno Quevedo ÁP, Osorio Vega NW, González Murillo OA. In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS. ACTA BIOLÓGICA COLOMBIANA 2014. [DOI: 10.15446/abc.v20n2.42713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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