Abstract
Ecophysiological studies of cyanobacteria isolated from three distinctly different types of paddy soils in Bangladesh were carried out. Paddy soils selected for the study were calcareous soils, saline soils and red soils. Physicochemical properties of soils had marked influences on the indigenous blue-green algal population. Wide variations in growth rate, ability to grow under heterotrophic conditions, nitrogen-fixing capacity under different conditions and tolerance to pesticides among the isolates of a genus and between different genera were observed. Heterotrophically grown cultures were more tolerant to pesticides compared to autotrophically grown cultures. Furthermore, the nitrogen fixation in heterotrophically grown cultures was 6–8 times higher than that in autotrophically grown cultures. Cyanobacteria isolated from saline soils had the capacity to reduce the electrical conductivity (salinity) measured at 4–20 ds/m. The reduction of electrical conductivity by the isolates ranged from 6% to 42.5% in liquid cultures and from 9.94% to 26.53% in soils.
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References
Ahmed M, Bhuiya Z H, Mian M H, Hashem M A, Hossain M M 1990. Study on the occurrence of blue-green algae in different soils of Bangladesh under three moisture conditions. Bangladesh J. Soil Sci., 21, 80–87.
Biswas T D, Mukherjee S K 1987. Textbook of Soil Science. Tata McGraw-Hill, New Delhi, 291.
Biswas B K, Hashem M A, Islam M R, Rahman M M 1994. Influence of soil properties on the population of blue-green algae in different agro-ecological zones of Bangladesh. Bangladesh J. Crop Sci., 5, 11–18.
Carr N G 1973. Metabolic control and autotrophic physiology. In: Carr N G, Whitton B A, eds. The Biology of Blue-green Algae. Blackwell, Oxford, 39–65.
Gabbay-Azaria R, Tel-or E 1993. Mechanisms of salt tolerance in cyanobacteria. In: Plant response to the environment. CRC Press, Boca Raton, FL, 000–000.
Gallon J R, Hashem M A, Chaplin A E 1991. Nitrogen fixation by Oscillaioria sp. under autotrophic and photoheterotrophic conditions. J. Gen. Microbiol., 137, 31–39.
Gangawane L V, Saler R S 1979. Tolerance of certain fungicides by nitrogen fixing blue-green algae. Curr. Sci., 48, 306–308.
Hashem M A, Gallon J R, Chaplin A E 1987. Growth performances of two spp. of Oscillatoria under heterotrophic conditions. Bangladesh J. Aqua. 9, 61–67.
Jackson M L 1962. Soil Chemical Analysis. Constable, London.
Page A L, Miller R H, Keeney D R 1989. Methods of Soil Analysis, Part II, 2nd edn. American Society of Agronomics, Madison, Wisconsin, USA.
Piper C S 1950. Soil and Plant Analysis. Adelaide University Press, Adelaide, Australia.
Prammer D, Schimdt E L 1967. Algae. Experimental Soil Microbiology. Burgess, Minneapolis, Minnesota, 25–27.
Rippka R 1972. Photoheterotrophy and chemoheterotrophy among unicellular blue-green algae. Arch. Microbiol., 87, 93–98.
Roger P A 1991. Reconsidering the utilization of blue-green algae in wetland rice cultivation. In: Dutta S K and Sloger C, eds. Biological N2 — fixation Associated with Rice Production. Oxford University Press and IBH, New Delhi, 119–141.
Roger P A, Kulasooriya S A 1980. Blue-green Algae and Rice. IRRI, Los Banos, Philippines.
Roger P A, Reynaud P A 1980. Ecology of blue-green algae in paddy fields. In:, eds. Nitrogen and Rice. IRRI, Los Banos, Philippines, 287–310.
Stewart W D P 1977. Bluegreen algae. In: Hardy R W F, Silver W S, eds. A Treatise on Dinitrogen Fixation, Section III: Biology. John Wiley, New York, 63–123.
Sinclair C, Whitton B A 1977. Influence of nitrogen source on morphology of Rivulariaceae (cyanophyta). J. Phycol., 13, 335–340.
Vaara T, Vaara M, Niemela S 1979. Two improved methods for obtaining axenic cultures of cyanobacteria. Appl. Env. Microbiol., 38, 1011–1014.
Venkataraman G S 1981. Blue-green algae for rice production. FAO Soils Bulletin. No. 46, Rome.
Watanabe I, and Liu C C. Improving nitrogen fixing systems and integrating them into sustainable rice farming. Plant Soil, 141, 57–67.
Yoshida S, Forno D A, Cook J H, Gomez K A 1976. Laboratory Manual for Physiological Studies of Rice. IRRI, Los Banos, Philippines.
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Hashem, M.A. (1998). Ecophysiological studies of cyanobacteria in paddy soils of Bangladesh. In: Malik, K.A., Mirza, M.S., Ladha, J.K. (eds) Nitrogen Fixation with Non-Legumes. Developments in Plant and Soil Sciences, vol 79. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5232-7_39
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DOI: https://doi.org/10.1007/978-94-011-5232-7_39
Publisher Name: Springer, Dordrecht
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