• Muhammad Ibrahim Bayero University, Kano
  • A. H. Kawo
Keywords: Keywords: Salt, Tolerance, Bacteria, Irrigated Soil.



This study characterized and screened NaCl tolerance in some bacterial isolates from irrigated soil of Bagwai, Kano State, Nigeria. The soil used for the study was sampled from Irrigation sites using random sampling method. The physicochemical properties and bacteriological characteristics of the soil sample were determined using culture, morphological, biochemical and molecular methods. The soil pH and electrical conductivity were 7.33 and 8.02 dSm-1 respectively. The total nitrogen and available phosphorus from the study area were 0.118% and 3.96 mgkg-1 respectively. The organic carbon recorded a very low content of 0.183%. Moisture content was 080% while temperature was found to be 29oC respectively. Bacteria isolated were identified as B subtilis, S rhizophilia and K pneumoniae. Further comfirmation using 16s rRNA sequencing showed the occurrence of Stenotrophomonas rhizophilia SBANHCu 14 (99.55%) and Klebisella pneumoniae GX 14 (98.68%). All the two bacterial isolates were able to tolerate salt concentration up to 20% but optimum tolerance was observed at 5%.



Abdulkarim SM, Fatimah AB and Anderson JG. (2009). Effect of salt concentrations on the growth of heat-stressed and unstressed Escherichia coli. Journal of Food Agriculture and Environment, 7(3 and 4): 51-54.
Adamu G. K (2013). An assessment of soil Properties of Watari Irrigation Project, Kano State, Nigeria. Academic Research International Journal 4; 258-266
Ali N, Yeasmin L, Gantait S, Goswami R, Chakraborty S (2014). Screening of rice landraces for salinity tolerance at seedling stage through morphological and molecular markers. Journal of Physiological and Molecular Biology in Plants 20:411-423.
Barnawal D, Singh R and Singh RP (2019) Role of plant growth promoting rhizobacteria in drought tolerance: Regulating growth hormones and osmolytes. In: PGPR amelioration in sustainable agriculture. Elsevier BV: Amsterdam, The Netherlands, pp 107–128
Bilyaminu I. A. (2019). Isolation and Assessment of Metal Tolerant Bacteria and Their Potential for Heavy Metal. MSc. Microbiology Dissertation submitted to the Department of Microbiology. Bayero University, Kano, Nigeria.pp(23)
Costa SF, Martins D, Agacka-Mołdoch M, Czubacka A and de Sousa AS (2018) Strategies to alleviate salinity stress in plants. Springer Nature: Berlin/Heidelberg, Germany, pp 307–337
Debarati H, Pardita D, Arpita M, and Malini B (2016). Isolation and Characterization of Halophilic Bacteria from Sundarban Soil, International. Journal of Life Science and Scientific Research, 2(4); 442-450.
Eno J. U., Ibia T. O., Ogunwale J. A., Ano A.O. and Esu I. E (2009) Manual of Soil, Plant and Water Analyses. Sibon Books Publishers, Lagos. pp (6 – 77).
Gangwar P, Singh R, Trivedi M and Tiwari RK (2020) Sodic soil: Management and reclamation strategies. In: Environmental concerns and sustainable development. Springer, Singapore, pp 175–190
Gowalya A., Ponnusami V. and Sugumaran K.R (2014). Isolation of Bacteria from Soil Sample for Exco-polysaccharide Production. International Journal of Chemistry and Technology 6(5); 2925 – 2928.
Hajmeer M, Ceylan E, Marsden JL and Fung DY. (2006). Impact of sodium chloride on E. coli O157:H7 and S. aureus analysed using transmission electron microscopy. Journal of Food Microbiology., 23(5): 446-452.
Haque MF,Sultana S, Mohanta MK, Hassan MA, Charity AS, Shamsunnahar and Chowdhury IJK (2019) Isolation and Characterization of Antibiotic Producing Actinomycetes from Mud Nest of Waps.Annual Research and Review in Biology.34(5):1-10
Hingole, S. S and Pathak, A. P. (2016). Isolation of halotolerant Plant growth promoting Klebsiella pneumoniae from Tuppa , Nanded , Maharashtra, 5(1), 5–9.
Islam M.M, Islam SN and Alam MS (2015). Molecular Characterization of Selected Landraces of Rice for Salt Tolerance Using SSR Markers. International Journal of Innovation and Scientific Research 17(1):206218.
Jaymin M, Vivek P, Sudhir V, Atul M, Prashant D. K, Gaurav S, Devendra V and Gaurav S. D (2013) Isolation and characterization of high salt tolerant bacteria from agricultural soil. European Journal of Experimental Biology; 3(6):351-358.
Kadmiri IM, Chaouqui L, Azaroual SE, Sijilmassi B, Yaakoubi K and Wahby I (2018) Phosphate-solubilizing and auxin-producing rhizobacteria promote plant growth under saline conditions. Arab Journal of Science and Engineering 43:3403–3415
Kenneth OC, Nwadibe EC, Kalu AU and Unah UV (2018) Plant growth promoting rhizobacteria (PGPR): a novel agent for sustainable food production. American Journal of Agriculture and Biological Sciences.14: 35-54
Krishnamurthy SL, Gautan RK, Sharma PC and Sharma DK (2016). Effect of different salt stress on agro-morphological traits and utilization of salt stress indices for reproductive stage salt tolerance in rice. Field Crops Research 190:26-33.
Kumar A and Verma JP (2019) The role of microbes to improve crop productivity and soil health. In: Ecological wisdom inspired restoration engineering. Springer Nature, Singapore, pp 249–265
Mishra P, Singh PP, Singh SK and Verma H (2019) Sustainable agriculture and benefits of organic farming to special emphasis on PGPR. In: Role of Plant Growth Promoting Microorganisms in Sustainable Agriculture and Nanotechnology. Elsevier, Woodhead publishing, Sawston, Cambridge, UK, pp 75-87
Musliu Abdulkadir and Salawudeen Waliyu (2012) Screening and Isolation of the Soil Bacteria for Ability to Produce Antibiotics, European Journal of Applied Sciences.4, 211-215.
Nanis G.A., Ramadan K., Elham E., and Wael, Y.A. (2018) Potential Use of Beneficial Salt Tolerant Bacteria for Improving Wheat Productivity Grown in Salinized Soil. Journal of Microbiology Research 8(2); 43 – 53.
Nushair AM, Saha AK, Mandal A, Rahman MA, Mohanta MK, Hassan MA and Haque MF (2018) Rhizobium sp. CCNWYC119: A single strain highly effective as biofertilizer for three different peas (Pigeon pea, Sweat pea and Chick pea). Lequme Research. 41(5) :771-777
Omotoyinbo O. V and Omotoyinbo B. I (2016) Effect of Varying NaCl Concentrations on the Growth Curve of Escherichia coli and Staphylococcus aureus, Journal of Cell Biology; 4(5): 31-34.
Paul, D., and Nair, S. (2008). Stress adaptations in a Plant Growth Promoting Rhizobacterium (PGPR) with increasing salinity in the coastal agricultural soils. Journal of Basic Microbiology, 48(5); 378-384.
Reddy INL, Kim SM, Kim BK, Yoon IS and Kwon TR (2017). Identification of rice accessions associated with K+/Na+ ratio and salt tolerance based on physiological and molecular responses. Rice Science, 24(6):360-364.
Rodriquez R and Redman R (2008) More than 400million year of evalution and some plants still can`t make it on their own plant stress tolerance via fungal symbiosis. Journal of Experimental Botony.59(5):1109-1114
Sakina A, Ahmed I, Shahzad A, Iqbal M and Asif M (2016). Genetic variation for salinity tolerance in Pakistani rice (Oryza sativa L.) germplasm. Journal of Agronomy and Crop Science 202:25-36.
Samina M., Tom K., Bruce, R. and George L (2010). Growth Promoting Effects on Corn (Zea mays L) bacterial isolates under greenhouse and field conditions. Journal of soil Biology and Biochemistry 42(6):1848-1456.
Sanjay A, Singh Y.P, Vanza M, and Sahni D (2016). Bioremediation of saline and sodic soils through halophilic bacteria to enhance agricultural production. Jounal of Soil and Water conservation 15(4); 302 - 305
Sharma, A., Dev, K., Sourirajan, A., & Choudhary, M. (2021). Isolation and characterization of salt-tolerant bacteria with plant growth-promoting activities from saline agricultural fields of Haryana, India. Journal, genetic engineering & biotechnology, 19(1), 99.
Todar, K., Ubukata M. and Hamada, M. (2005): Microbiology of Human Perspective. McGraw- Hill Publishers, London.
Yasmeen T (2019) Ameliorative capability of plant growth promoting rhizobacteria (PGPR) and arbuscular mycorrhizal fungi (AMF) against salt stress in plant. In: Plant abiotic stress tolerance. Springer: Cham, Germany, pp 409–448
Zhang S, Fan C, Wang Y, Xia Y, Xiao W and Cui X (2018) Salt-tolerant and plant-growth-promoting bacteria isolated from high-yield paddy soil. Can. Journal of Microbiology. 64:968–978
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