Rhizosphere Cyanophyceae of Soybean Inoculated with Rhizobium Japonicum
Abstract
Abstract. A study has been made of the species of Cyanophyceae occurring in the rhizosphere and nonrhizosphere regions of soybeans in pot culture under glasshouse conditions. Eleven species of Cyanophyceae were detected. The algal species were not influenced in diversity by the presence ofRh.japonicum. Very few cells of only four species occurred in unplanted pots. Attention is drawn to the dearth of information available on rhizosphere algae and to their likely importance for the heterotrophic populations.
Ringkasan. Penelitian terhadap species Cyanophyceae jang terdapat didaerah rhizosphere dan nonrhizosphere akar kedele, telah dilakukan dalam kondisi rumahkatja dengan menggunakan pot. Sebelas species Cyanophyceae telah didapatkan. Kehadiran Rh. japonicum ternjata tidak mempengaruhi diversitas species gang-gang. Hanja empat species dalam djumlah jang sangat sedikit, didapatkan pada pot tanpa kedele. Perhatian sangat ditundjukan karena kurangnja informasi mengenai ganggang didaerah rhizosphere, serta kepentingannja didalam populasi jang heterotropis.
References
Baker, K.F. (1957). The U.C. System for producing healthy container grown plants. Univ. California, Man. No. 2.
Cullimore, D.R. & Woodbine, M. (1963). A rhizosphere effect of the pea root on soil algae. Nature, Lond., 198, 304-305.
Gonzalves, E.A. & Yalavigi,V.S. (1959). Algae in the rhizospheres of some crop plants. Proc. Symp. Algol., New Delhi, 335-342.
Ivarson,K.G. & Katznelson,H. (1960). Studies on the rhizosphere microflora of yellow birch seedlings. Soil Sci., 62, 343-354.
Katznelson,H. (1946). The rhizosphere effect of mangels on certain groups of soil microorganisms. Plant & Soil, 12, 30-40.
Katznelson,H. et al. (1948). Soil microorganisms in the rhizosphere. Botan.Rev., 14, 543-587.
Leval,J.D. & Remacle,R. (1969). A microbiological study of the rhizosphere of poplar. Plant & Soil, 31, 31-47.
Patel,J.J. (1969). Microorganisms in the rhizosphere of plants inoculated with Azotobacter chroococcum. Ibid., 31, 209-221.
----- & Brown,M.E. (1969). Interactions of Azotobacter with rhizosphere and root surface microflora. Ibid., 31, 273-281.
Paterson,E.A. & Rouatt,J.W. (1967). Soil microorganisms associated with flax-roots. Canad. J.Microbiol., 13, 199-203.
Peterson,J.B. (1935). Studies on the biology and taxonomy of soil algae. Dansk. bot. Ark., 8, 1-160.
Rovira,A.D. (1965). Interactions between plant roots and soil microorganisms. Ann.Rev.Mlcrobiol., 19, 241-266.
----- (1969). Plant roots exudates. Botan.Rev., 35, 35-38.
Starkey,R.L. (1958). Interrelations between microorganism and plant roots in the rhizosphere. Bact.Rev., 22, 154-172.
Vincent,J.M. (1970). A manual for practical study of root nodules bacteria. I.B.P.Handbook no. 15.
Wieringa,K.T. (1968). A new method for obtaining bacteria-free cultures of blue-green algae. Antonie van Leeuwenhoek, 34, 54-56.


