Adesemoye, A. O. and Kloepper, J. W. (2009). Plant-microbes interactions in enhanced fertilizer-use efficiency. Applied Microbiology and Biotechnology 85:1–12.
Ahmed, M., Stal, L. J. and Hasnain, S. (2010). Association of non-heterocystous cyanobacteria with crop plants. Plant and Soil 336:363–375.
Ashrafuzzaman, M., Hossen, F. A., Razi, I. M., Hoque, M. A., Islam, M. Z., Shahidullah, S. M. and Meon, S. (2009). Efficiency of plant growth-promoting rhizobacteria (PGPR) for the enhancement of rice growth. African Journal of Biotechnology 8:1247–1252.
Berg, G. (2009). Plant-microbe interactions promoting plant growth and health: perspectives for controlled use of microorganisms in agriculture. Applied Microbiology and Biotechnology 84:11–18.
Casida, L. E. Jr, Klein, D. A. and Santoro, T. (1964). Soil dehydrogenase activity. Soil Science 98:371–376.
Frank, A., Ryan, R. P., Abbas, A., Mark, G. L. and Gara, F. O.’ (2006). Molecular tools for studying plant growth-promoting rhizobacteria (PGPR). In Molecular Techniques for Soil and Rhizosphere Microorganisms, 116–131 (Eds Cooper, J. and Rao, J. R.). Wallingford, Oxfordshire, UK: CABI Publishing.
Ghosh, T. K. and Saha, K. C. (1997). Effects of inoculation of cyanobacteria on nitrogen status and nutrition of rice (Oryza sativa L.) in an Entisol amended with chemical and organic sources of nitrogen. Biology and Fertility of Soils 24:123–128.
Green, V. S., Stott, D. E. and Diack, M. (2006). Assay of fluorescein diacetate hydrolytic activity – optimisation of soil samples. Soil Biology and Biochemistry 38:693–701.
Hesse, P. R. (1971). A textbook of Soil Chemical Analysis. London: John Murray.
Irisarri, P., Gonnet, S. and Monza, J. (2001). Cyanobacteria in Uruguayan rice fields: diversity, nitrogen fixing ability and tolerance to herbicides and combined nitrogen. Journal of Biotechnology l91:95–103.
Jaiswal, P., Kashyap, A. K., Prasanna, R. and Singh, P. K. (2010). Evaluating the potential of N. calcicola and its bicarbonate resistant mutant as bioameliorating agents for ‘Usar’ soil. Indian Journal of Microbiology 50:12–18.
Jaiswal, P., Prasanna, R., Nayak, S., Sood, A. and Suseela, M. R. (2008). Characterization of rhizo-cyanobacteria and their associations with wheat seedlings. Egyptian Journal of Biology 10:20–27.
Karthikeyan, N., Prasanna, R., Nain, L. and Kaushik, B. D. (2007). Evaluating the potential of plant growth-promoting cyanobacteria as inoculants for wheat. European Journal of Soil Biology 43:23–30.
Karthikeyan, N., Prasanna, R., Sood, A., Jaiswal, P., Nayak, S. and Kaushik, B. D. (2009). Physiological characterization and electron microscopic investigations of cyanobacteria associated with wheat rhizosphere. Folia Microbiologica 54:43–51.
Kaushik, B. D. (1987). Laboratory Methods for Blue Green Algae. New Delhi: Associated Publishing Company.
Kaushik, B. D. (1989). Reclamative potential of cyanobacteria in salt-affected soils. Phykos 28:101–109.
Kaushik, B. D. (1998). Use of cyanobacterial biofertilizer in rice cultivation: a technology improvement. In Cyanobacterial Biotechnology, 211–222 (Eds Subramanian, G.Kaushik, B. D. and Venkataraman, G. S.). New Delhi, India: Oxford & IBH.
Liu, A., Ma, B. L. and Bamke, A. A. (2005). Effects of cover crops on soil aggregate stability, total organic carbon, and polysaccharides. Soil Science Society of America Journal 69:2041–2048.
Mackinney, G. (1941). Absorption of light by chlorophyll solutions. Journal of Biological Chemistry 140:315–322.
Mader, P., Kaiser, F., Adholeya, A., Singh, R., Uppal, H. S., Sharma, A. K., Srivastava, R., Sahai, V., Aragno, M., Wiemken, A., Johri, B. N. and Fried, P. M. (2011). Inoculation of root microorganisms for sustainable wheat rice and wheat black gram rotations in India. Soil Biology and Biochemistry 43:609–619.
Mandal, B., Vlek, P. L. G. and Mandal, L. N. (1998). Beneficial effect of blue green algae and Azolla excluding supplying nitrogen, on wetland rice fields: a review. Biology and Fertility of Soils 27:329–342.
Mazel, D., Houmard, J., Castets, A. M. and Tandeau de Marsac, N. (1990). Highly repetitive DNA sequences in cyanobacterial genomes. Journal of Bacteriology 172:2755–2761.
Nayak, S. and Prasanna, R. (2007). Soil pH and its role in cyanobacterial abundance and diversity in rice field soils. Applied Ecology and Environmental Research 5:103–113.
Nayak, S., Prasanna, R., Pabby, A., Dominic, T. K. and Singh, P. K. (2004). Effect of urea and BGA-Azolla biofertilizers on nitrogen and chlorophyll accumulation in soil cores from rice fields. Biology and Fertility of Soils 40:67–72.
Nayak, S., Prasanna, R., Prasanna, B. M. and Sahoo, D. B. (2009). Genotypic and phenotypic diversity of Anabaena isolates from diverse rice agro-ecologies of India. Journal of Basic Microbiology 49:165–177.
Nunan, N., Morgan, M. A. and Herlihy, M. (1998). Ultraviolet absorbance (280 nm) of compounds released from soil during chloroform fumigation as an estimate of the microbial biomass. Soil Biology and Biochemistry 30:1599–1603.
Prasanna, R., Jaiswal, P., Nayak, S., Sood, A. and Kaushik, B. D. (2009a). Cyanobacterial diversity in the rhizosphere of rice and its ecological significance. Indian Journal of Microbiology 49:89–97.
Prasanna, R., Jaiswal, P., Singh, Y. V. and Singh, P. K. (2008). Influence of biofertilizers and organic amendments on nitrogenase activity and phototrophic biomass of soil under wheat. Acta Agronomica Hungarica 56:149–159.
Prasanna, R., Joshi, M., Rana, A., Shivay, Y. S. and Nain, L. (2012a). Influence of co-inoculation of bacteria-cyanobacteria on crop yield and C-N sequestration in soil under rice crop. World Journal of Microbiology and Biotechnology 28:1223–1235.
Prasanna, R., Nain, L., Ancha, R., Shrikrishna, J., Joshi, M. and Kaushik, B. D. (2009b). Rhizosphere dynamics of inoculated cyanobacteria and their growth-promoting role in rice crop. Egyptian Journal of Biology 11:26–36.
Prasanna, R., Nain, L., Pandey, A. K. and Saxena, A. K. (2012b). Microbial diversity and multidimensional interactions in the rice ecosystem. Archives of Agronomy and Soil Science 58:723–744.
Prasanna, R. and Nayak, S. (2007). Influence of diverse rice soil ecologies on cyanobacterial diversity and abundance. Wetlands Ecology and Management 15:127–134.
Prasanna, R., Sharma, E., Sharma, P., Kumar, A., Kumar, R., Gupta, V., Pal, R. K., Shivay, Y. S. and Nain, L. (2011b). Soil fertility and establishment potential of inoculated cyanobacteria in rice crop grown under non-flooded conditions. Paddy and Water Environment, doi:10.1007/s10333-011-0302-2 (Online First™, 19 December 2011).
Prasanna, R., Singh, R. N., Joshi, M., Madhan, K., Pal, R. K. and Nain, L. (2010). Monitoring the biofertilizing potential and establishment of inoculated cyanobacteria in soil using physiological and molecular markers. Journal of Applied Phycology 23:301–308.
Prasanna, R., Tripathi, U., Dominic, T. K., Singh, A. K., Yadav, A. and Singh, P. K. (2003). An improvised technique for measurement of nitrogen fixation by blue green algae and Azolla using intact soil cores. Experimental Agriculture 39:145–150.
Rana, A., Joshi, M., Prasanna, R., Shivay, Y. S. and Nain, L. (2012). Biofortification of wheat through inoculation of plant growth promoting rhizobacteria and cyanobacteria. European Journal of Soil Biology 50:118–126.
Roger, P. A. and Kulasooriya, S. A. (1980). Blue Green Algae and Rice. Manila, Philippines: International Rice Research Institute.
Roger, P. A., Zimmerman, W. J. and Lumpkin, T. A. (1993). Microbiological management of wetland rice fields. In Soil Microbial Ecology: Applications in Agricultural and Environmental Management, 417–455 (Ed Metting, B.). New York: Dekker.
Roychoudhury, P., Kaushik, B. D., Krishna Murty, G. S. R. and Venkataraman, G. S. (1979). Effect of blue green algae and Azolla application on the aggregation status of soil. Current Science 48:454–455.
Singh, P. K. and Bisoyi, R. N. (1989). Blue green algae in rice fields. Phykos 28:181–195.
Smith, J. K., Parry, J. D., Day, J. G. and Smith, R. J. (1998). A PCR technique based on Hip1 interspersed repetitive sequence distinguishes cyanobacterial species and strains. Microbiology 144:2791–2801.
Stanier, R. Y., Kunisawa, R., Mandel, M. and Cohen-Bazare, G. (1971). Purification and properties of unicellular blue green algae (Order: Chroococcales). Bacteriological Reviews 35:171–305.
Subhashini, D., Kaushik, B. D. (1981). Amelioration of sodic soils with blue-greeen algae. Australian Journal of Soil Research 19:361–367.
Tabatabai, M. A. and Bremner, J. M. (1969). Use of p-nitrophenyl phosphate for assay of soil phosphatase activity. Soil Biology and Biochemistry 1:301–307.
Venkataraman, G. S. (1972). Algal Biofertilizers and Rice Cultivation. New Delhi, India: Today and Tomorrow Printers and Publishers.
Whitton, B. A. (2000). Soils and rice fields. In The Ecology of Cyanobacteria, 233–255 (Eds Whitton, B. A. and Potts, M.). Dordrecht, Netherlands: Kluwer.
Wright, S. F. and Upadhyaya, A. (1996). Extraction of an abundant unusual protein from soil and comparison with hyphal protein of arbuscular mycorrhizal fungi. Soil Science 16:575–586.