Abstract
Evaluation of three methods for preservation of Azotobacter: freeze-drying, cryopreservation, and immobilization in dry polymers
Highlights
Plant growth-promoting bacteria –PGPB– are microorganisms that can grow in, on, or around plant tissues and stimulate plant growth by numerous mechanisms (Vessey 2003)
Results showed that the bacteria survival rate decreased over the time for both strains, and the decrease rate depended on the used strain, preservation technique, and protective agent
Azotobacter cells subjected to cryopreservation resulted in a rapid rate of bacterial death regardless of the protective agent (Table 1)
Summary
Plant growth-promoting bacteria –PGPB– are microorganisms that can grow in, on, or around plant tissues and stimulate plant growth by numerous mechanisms (Vessey 2003) Within this group, nitrogen-fixing bacteria play a remarkable role in plant nutritition. Azotobacter, a nitrogen-fixing bacteria, is able to fix nitrogen aerobically and have the particularity of forming into cysts (Becking 2006, Garrity et al 2005). This bacterial genus, has showed to be able to promote plant growth, and it is usually included in the PGPB group. Kisilkaya (2008) showed that inoculation of wheat with
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
