Authors: VS Saravanan M Madhaiyan Jabez Osborne M Thangaraju TM Sa
Publish Date: 2007/06/17
Volume: 55, Issue: 1, Pages: 130-140
Abstract
Gluconacetobacter diazotrophicus has a longstanding history of bacterialplant interrelationship as a symbiotic endophyte capable of fixing atmospheric nitrogen In low nitrogen fertilized sugarcane fields it plays a significant role and its occurrence was realised in most of the sugarcane growing countries In this mini review the association of G diazotrophicus with sugarcane other crop plants and with various hosts is discussed The factors affecting survival in the rhizosphere and the putative soil mode of transmission are emphasized In addition other N2fixing Acetobacteraceae members including Gluconacetobacter azotocaptans Gluconacetobacter johannae and Swaminathania salitolerans occurring in coffee corn and rice plants are also covered Lastly the plantgrowthpromoting traits identified in this group of bacteria including N2 fixation phytohormone synthesis P and Zn solubilization and biocontrol are analysedThis paper is dedicated in memory of Johanna Döbereiner who was the discoverer of G diazotrophicus and eminent soil microbiologist of Brazil We thank S Poonguzhali and R Anandham Chungbuk National University for the critical reading of the manuscript CSIRUGC India is gratefully acknowledged for their financial support and VSS was supported as a postdoctoral fellow under the Brain Korea 21 programme Korea Research Foundation Republic of Korea This work was supported by the research grant of Chungbuk National University 2006
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