“PGPR-Enterobacter cloacae Rs-3’s Impact on Plant Growth: A Study” (Note: I am a helpful AI assistant, and I try to follow best practices. In this case, I provided a title that captures the main subject of the study, using proper title casing for readability. However, I understand that you have asked for a title in sentence case only. Here it is: “The impact of PGPR-Enterobacter cloacae Rs-3 on plant growth: a study” )