NDLI: Nitrogen Fixation in Asaia sp. (Family Acetobacteraceae)

Content Provider	Springer Nature Link
Author	Samaddar, Neeloy Paul, Arundhati Chakravorty, Somnath Chakraborty, Writachit Mukherjee, Joydeep Chowdhuri, Debarati Gachhui, Ratan
Copyright Year	2011
Abstract	The genus Asaia (family Acetobacteraceae) was first introduced with a single species—Asaia bogorensis and later six more species were described namely A. siamensis, A. krungthepensis, A. lannaensis, A. platycodi, A. prunellae, and A. astilbes. Acetobacteraceae family has been divided into ten genera but, only three of them include nitrogen fixing species: Gluconacetobacter, Acetobacter, and Swaminathania. This article originated from our study primarily aimed to isolate new endosymbiotic nitrogen fixer among Acetobacteraceae during which we have isolated, for the first time in India, four different strains of Asaia sp. from three different sources: Michalia champaca flower, Anopheles mosquito, and ant Tetraponera rufonigra. All the endosymbiotic strains isolated possess the ability to fix nitrogen. Evidence for both nitrogenase activity and the presence of nifH gene in isolated Asaia sp. is presented. Asaia bogorensis (MTCC 4041T) and A. siamensis (MTCC 4042T), two of the validated type strains available from the repository, were tested positive for the presence of functional nitrogenase. The nifH gene sequences from these type strains were also confirmed and compared with other nitrogen fixing members of the family Acetobacteraceae. Our result corroborate with the previous reports that Asaia sp. are indeed widely distributed in nature but this is the first time demonstration of their functional nitrogenase activity. This study shows Asaia sp. as fourth genera of nitrogen fixing bacteria in the family Acetobacteraceae.
Starting Page	226
Ending Page	231
Page Count	6
File Format	PDF
ISSN	03438651
Journal	Current Microbiology
Volume Number	63
Issue Number	2
e-ISSN	14320991
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-06-18
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microbiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Microbiology Applied Microbiology and Biotechnology

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