Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 8, Issue 3, 2006; Page No.(455-460)

INFLUENCE OF PHOSPHORUS AND POTASSIUM SOURCES ON THE GROWTH, NITROGEN FIXING ACTIVITY AND AMMONIA EXCRETION OF SALT TOLERANT CYANOBACTERIA

P. AMSAVENr AND S. KANNAIYAN

Abstract

In view of the global crisis of demand for the replacement of chemical fertilizer with biofertilizer and maintain the soil aggregation properties of salt affected soil, an emphasis has been made to improve the growth, nitrogen fixing activity and ammonia excretion of salt tolerant cyanobacterial cultures. Three salt tolerant cyanobacterial cultures viz., Anabaeria-TR-52-ST1, Nostoc-BS-60-ST2 and Westiellopsis-TR-5- ST3 isolated from saline and soclic soils of Tamil Nadu were employed in this study with an objective to evaluate the effect of phosphorus (single super phosphate and rock phosphate) and potassium (commercial murate of potash and potassium sulphate) on growth, nitrogen fixing activity and ammonia excretion of these algal cultures. The results revealed that both phosphorus sources viz., single super phosphate (SSP) and rock phosphate have positively influenced the growth, nitrogen fixing activity and ammonia excretion of all the three algal cultures. Compared to rock phosphate, single super phosphate at 10 and 20 ppm has accelarated the growth, nitrogenase activity and ammonia excretion of algal cultures. Among the three algal cultures, Westiellopsis-TR-5-ST3 has registered higher parameters mentioned above than the other two cultures. Of the two potassium sources tested in this study, potassium sulphate (K2 SO4) have increased the growth, ammonia excretion and nitrogenase activity of all the cyanobacterial cultures. The results suggest that addition of phosphorus and potassium nutrients trigger the growth, nitrogenase activity and ammonia excretion of salt tolerant cyanobacterial cultures. Hence, these nutrients can be amended to the normal growth medium for the mass multiplication of cyanobacterial cultures.

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 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!!