Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 16, Issue 4, 2014; Page No.(777-786)

ISOLATION AND CHARACTERIZATION OF BACTERIAL ENDOPHYTES ASSOCIATED WITH SAGO PALM (METROXYLON SAGU ROTTB.) IN TISSUE CULTURE

K.L. LABRADOR, E.L.T. LUSTICA AND A.U. NOVERO

Abstract

Endophytic bacteria are novel sources of beneficial compounds such as plant growth regulators and antibiotics. Nine bacterial isolates were obtained from sago palm tissue culture. Selected candidates were those colonies observed to have originated from the base of the explants. Eight of the isolates were Gram- negative bacilli (SEB 001, 002, 003, 004, 005, 006, 007, and 008) and one (SEB 206) was Gram-positive coccus. All eight isolates demonstrated the ability to ferment lactose and/ or sucrose, and were positive in catalase, citrate and VP tests. The isolates were negative for endospore formation, indole production, and methyl red test. Only one isolate grew in mannitol salt agar. Amplification of 16s rDNA sequences using the universal primers 16F27 and 16R1542 identified the isolates as Enterobacter ludwigii (SEBs 001, 003, and 006), Pantoea dispersa (SEBs 002 and 004), and Klebsiella variicola (SEBs 005, 007, and 008). Morphological and biochemical properties of the test isolates, as well as phylogenetic analysis, support the deduced identities. All isolates inhibited the growth of E. coli in the disc diffusion assays with SB 006 obtaining the highest mean zone of inhibition (12 mm). In the resazurin test, SEB 007 and SEB 008 showed promising antibiotic activities against E. coli, Aspergillus niger and Fusarium oxysporum. This study revealed that E. ludwigii and K. variicola isolated from sago palm possess antibiotic properties.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 21, Issue 3, 2019
Vol 21, Issue 2, 2019
Vol 21, Issue 1, 2019
Vol 20, Dec. Suppl. No.2, 2018
Vol 20, Issue 4, 2018
Vol 20, Dec. Suppl. Issue, 2018
Vol 20, Oct Suppl. Issue, 2018
Vol 20, Issue 3, 2018
Vol 20, Issue 2, 2018
Vol 20, Issue 1, 2018
Vol 20, Feb. Suppl. Issue, 2018
Vol 19, Issue 4, 2017
Vol 19, Nov. Suppl, Issue 2017
Vol 19, Issue 3, 2017
Vol 19, Issue 2, 2017
Vol 19, Issue 1, 2017
Vol 18, Issue 4, 2016
Vol 18, Issue 3, 2016
Vol 18, Issue 2, 2016
Vol 18, Issue 1, 2016
Vol 17, Issue 4, 2015
Vol 17, Issue 3, 2015
Vol. 17 Special Issue 2015
Vol 17, Issue 2, 2015
Vol 17, Issue 1, 2015
Vol 16, Issue 4, 2014
Vol 16, Issue 3, 2014
Vol 16, Issue 2, 2014
Vol 16, Issue 1, 2014
Vol 15, Issue 4, 2013
Vol 15, Issue 3, 2013
Vol 15, Issue 2, 2013
Vol 15 Issue 1, 2013
Vol 14, Issue 4, 2012
Vol 14, Issue 3, 2012
Vol 14, Issue 2, 2012
Vol.14, Issue 1, 2012
Vol.13, Issue 4, 2011
Vol.13, Issue 3, 2011
Vol.13, Issue 2, 2011
Vol.13, Issue 1, 2011
Vol.12, Issue 4, 2010
Vol.12, Issue 3, 2010
Vol.12, Issue 2, 2010
Vol.12, Issue 1, 2010
Vol 11, Issue 4, 2009
Vol 11, Issue 3, 2009
Vol 11, Issue 2, 2009
Vol 11, Issue 1, 2009
Vol 10, Issue 4, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 3, 2008
Vol 10, Issue 2, 2008
Vol 10, Issue 1, 2008
Vol 9, Issue 4, 2007
Vol 9, Issue 3, 2007
Vol 9, Issue 2, 2007
Vol 9, Issue 1, 2007
Vol 8, Issue 4, 2006
Vol 8, Issue 3, 2006
Vol 08, Issue 2, 2006
Vol 08, Issue 1, 2006
Vol 7 Issue 4, 2005
Vol 07, Issue 3, 2005
Vol 07, Issue 2, 2005
Vol 6 Issue 4, 2004
Vol 6 Issue 3, 2004
Vol 6 Issue 2, 2004
Vol 6 Issue 1, 2004
Vol 5 Issue 3, 2003
Vol 5 Issue 2, 2003
Vol 04, Issue 4, 2002
Vol 04, Issue 1, 2002
Vol 3 Issue 1-2, 2001
Vol 1 Issue 1-2, 2000
Vol 1 Issue 3-4, 1999
Vol 1 Issue 1-2, 1999
Looking for Past Issues? Click here to get them!!