157 © The Author(s), under exclusive license to Springer Nature Switzerland AG 2021 H. I. Mohamed et al. (eds.), Plant Growth-Promoting Microbes for Sustainable Biotic and Abiotic Stress Management, https://doi.org/10.1007/978-3-030-66587-6_7 Chapter 7 Pseudomonas as Plant Growth-Promoting Bacteria and Its Role in Alleviation of Abiotic Stress Tahira Yasmeen, Abdul Aziz, Mohsin Tariq, Muhammad Saleem Arif, Sher Muhammad Shahzad, Muhammad Riaz, Aqsa Javed, Shafaqat Ali, and Muhammad Rizwan Contents 1 Introduction 158 2 Plant Growth-Promoting Traits of Pseudomonas 158 2.1 Nitrogen Fixation 159 2.2 Nutrient Solubilization 159 2.3 ACC Deaminase and IAA Production 160 2.4 Siderophore Production 160 3 Pseudomonas and Alleviation of Abiotic Stress 161 3.1 Pseudomonas Under Water Stress 165 3.2 Pseudomonas Under Salinity Stress 170 3.3 Pseudomonas Under Temperature Stress 171 3.4 Pseudomonas Under Heavy Metal Toxicity 171 3.5 Pseudomonas Under Nutrient Defciency 173 4 Use of Pseudomonas for Bioremediation and Phytoremediation 173 5 Conclusion 176 References 176 T. Yasmeen () · A. Aziz · M. S. Arif · M. Riaz · S. Ali · M. Rizwan Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad, Pakistan e-mail: tahirayasmeen@gcuf.edu.pk M. Tariq · A. Javed Department of Bioinformatics and Biotechnology, Government College University Faisalabad, Faisalabad, Pakistan S. M. Shahzad Department of Soil and Environmental Sciences, University College of Agriculture, University of Sargodha, Sargodha, Pakistan