Bhartiya Krishi Anusandhan Patrika, volume 36 issue 2 (june 2021) : 153-155

​Diversity of Non-heterocystous Cyanobacteria in Paddy Field Soil

Anitha Rajasekaran, Usha Raja
11Department of Botany, Bharathi Women’s College, Prakasam Salai, Broadway, Chenani-600 108, Tamil Nadu, India.
  • Submitted20-07-2021|

  • Accepted21-07-2021|

  • First Online 29-07-2021|

  • doi 10.18805/BKAP338

Cite article:- Rajasekaran Anitha, Raja Usha (2021). ​Diversity of Non-heterocystous Cyanobacteria in Paddy Field Soil. Bhartiya Krishi Anusandhan Patrika. 36(2): 153-155. doi: 10.18805/BKAP338.

Paddy field soil is a natural habitat for many Cyanobacteria. Generally Heterocystous form dominate the nitrogen deficient soil. Non-heterocystous forms are also known to fix nitrogen. The diversity and the distribution of these forms vary. 20 Soil samples were serial diluted in BG-11 devoid of nitrogen supplement. Later the colonies were streaked to obtain axenic culture. The soil pH was also determined to study the effect on the diversity. The relative abundance of the BGA species was determined .Diversity of non-heterocystous form in the paddy field was found to be dominated by filamentous BGA, Lynbgya by 21%, Oscillatoria and Phormidium by 17% and colonial form Chrococcus sp by 12.5% Followed by Myxosarcina sp., 8%, while Aphanocapsa sp., Chlorogloea sp., Crinaluim sp., Gleocapsa sp, Plectonema sp. and Schizothrix sp., were 4%. A majority of the non-heterocystous BGA were found in the soil which had a pH ranging between 8.2-8.6. Diversity study of non-heterocystous BGA can help in understanding the distribution and further aid in the study of nitrogen fixation in these forms.

  1. Anand, N. (1989). Hand Book of Blue Green Algae. Bishen Singh and Mahendrapal Singh Publishers. Dehradum.

  2. Annie, F.D’souza., Gomes, E., Veeresh, A.V., Rodrigues, B.F. (2011). Density and diversity of blue green algae from the rice fields of goa. International Journal of Advanced Biological Research. 1(1): 8-14.  

  3. Aruna, M. and Srinivas, M. (2016). Diversity of Blue Green Algae from Paddy Fields, International Journal of Sciences. 5: 27-30. 

  4. Bergman, B., Gallon, J.R., Rani, A.N., Stal, L., J. (1997). N2 Fixation by non hterocystous cynobacteria. FEMS microbiology Reviews. 19: 139-185.

  5. Berrendero, E., Valiente, E.F., Perona, E., Gómez, C.L., Loza, V., Muñoz-Martín, M.Á. and Mateo, P. (2016). Nitrogen fixation in a non-heterocystous cyanobacterial mat from a mountain river. Scientific Reports. 6: 30920. 

  6. Biswal, R., Das, M.K. (2004). Diversity of cyanobacteria in the rice fields of Rairakhol sub-division of Sambalpur District of Orissa. Bull Biol. Sci. 1: 97-101. 

  7. Black, C.A. (1992). Methods of Soil Analysis Part 1. American Society of Agronomy, USA.

  8. Dey, H.S., Chakraborty, S. Diversity of Non-Heterocystous Filamentous Cyanobacteria from Freshwater Bodies of Bidhannagar, North 24 Parganas, West Bengal (2020). Asian J. Biol. Life Sci. 9(3): 386-90. 

  9. Dominic, T.K., Madhusoodanan, P.V. (1999). Cyanobacteria from extreme acidic environments. Current Science. 77(8): 1021-1022.

  10. Kaushik, B.D. (1994). Algalization of rice in salt-affected soils. Ann. Agri. Research. 14: 105-106.

  11. Nayak, S., Prasanna, R., Dominic, T.K., Singh, P.K. (2004). Effect of BGA- Azolla biofertilizers on nitrogen fixation and chlorophyll accumulation at different depths in soil cores. Biology and Fertility of Soils. 40: 67-72.

  12. Nayak, S., Prasanna, R. (2007). Soil pH and its role in Cyanobacterial abundance and diversity in rice field soils. App. Ecol. and  Envi. Res. 5: 103-113.

  13. Tamilnadu, K., Thamizh selvi, Sivakumar, K. (2011). Cyanobacterial diversity and related physico-chemical parameters in paddy fields of cuddalore district Int. J. of Res. in Environ. Sci. and Tech. 1: 7-15.  

  14. Saadatnia, H., Rriahi, H. (2009). Cyanobacteria from paddy fields in iran as a biofertilizer in rice plants. Plant Soil Environ.  55: 207-212. 

  15. Upasana, M., Sunil, P. (2004). Cyanobacteria-A potential biofertilizer for rice. Resonance. 6-10.

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