Ameliorating Salt Stress in Crops Through Plant Growth-Promoting Bacteria

  • Sana Ullah
  • Muhammad Baqir Hussain
  • Muhammad Yahya Khan
  • Hafiz Naeem AsgharEmail author


Abiotic stresses are emerging vicious environmental factors limiting agricultural productivity around the world, while food demand is increasing with growing population. Among these abiotic stresses, salt stress is a serious threat to put down crop production especially in arid and semiarid regions of the world. Therefore, some serious steps are required to stop or slow down the lethal effects of salinity for ensuring food security. Various strategies are adopted to tackle the deleterious impacts of salinity to crops including breeding techniques and genetic engineering, but these techniques have their level of significance and cannot satisfy the whole demand. However, some biological strategies are cost-effective, environment friendly, and easy to adopt/operate. In this scenario, the use of various microorganisms (bacteria, fungi, algae) to enhance salinity resilience in crops is encouraged due to their vital interactions with each other and crop plants. Bacteria are widely used to mitigate deleterious impacts of high salinity on crop plants because they possess various direct and indirect plant beneficial characteristics including exopolysaccharide and siderophore production, biofilm formation, phosphate solubilization, induced systemic resistance, and enhanced nutrient uptake, and they act as biocontrol agents to protect crop plants from many diseases by killing pathogens. This chapter focuses on the negative effects of high salinity on plants, bacterial survival in salt stress, and their mechanisms to mitigate salinity stress and the role of beneficial microbes to enhance crop tolerance against salinity stress.


Salinity Rhizobacteria Crop production Stress amelioration 



The authors are thankful for the support and encouragement by the colleagues from the Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Sana Ullah
    • 1
  • Muhammad Baqir Hussain
    • 1
  • Muhammad Yahya Khan
    • 2
  • Hafiz Naeem Asghar
    • 1
    Email author
  1. 1.Institute of Soil and Environmental SciencesUniversity of AgricultureFaisalabadPakistan
  2. 2.University of AgricultureVehariPakistan

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