Abstract
Growing in the medium containing 0.10 mol/L KCl for three days, the nitrogen-fixing activity ofAnabaena cylindrica decreased by 95%. Extent of the inhibition was enchanced with increased KCl concentrations. The biggest decrease of nitrogen-fixing activity was between 0.02–0.05 mol/L KCl. The same decline on growth was between 0.05–0.10 mol/L KCl. The longer treating-time was, the lower nitrogen-fixing activity was. A short time of KCl-treatment (for 4 h) resulted in 66.4% decrease of the activity. Under effecting of KCl for three days, the frequency of heterocyst differentiation decreased from 7.2% to 2.1%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Fernandes T A, Lyer V, Apte S K. Differential responses of nitrogen-fixing cyanodacteria to salinity and osmotic stress.Applied and Envir Microbiol, 1993,59: 899–904
Jeanjean R, Matthijs H C P, Onana B,et al. Exposure of the cyanobacterium synechocystic PCC 6903 to salt stress induces concerted changes in respiration and photosynthesis.Plant Cell Physiol, 1993,34: 1073–1079
Sinha R P, Hader D. Response of a rice field cyanobacterium anabaena sp. to physiological stressors.Envir Exper and Botany, 1996,36: 147–155
Waber J, Wylie J C. Changes in RNA and protein synthesis assciated with the adaptations of synechococcus sp to 0.4 mol/L Nacl.Envir and Exper Botany, 1993,33: 539–543
Guo Houliang. Penicillin-lysozyme method isolating the spheroplasts from blue-green algae.Acta Botanica Sinica, 1990,32: 510–513
Chen Xianjun, Guo Houliang. Complemental effect of osmotic stabilizers and their roles in degradation cell walls of blue- green algae.Acta Botanica Sinica, 1995,37: 386–390
Guo Houliang, Jin Chuanyin, Song Wenzhen. Regeneration of spheroplasts in a nitrogen-fixed filamentous blue-green alaganabaena cylindrica.Acta Botanica Sinica, 1996,38: 637–641
Guo Houliang, Chen Yong, Jin Chuanyin. A study to the stabilizers isolating of blue-green algal spheroblasts.Acta Hydrobiologica Sinica, 1994,18(3): 290
Steward W D P, Fitzgerald G P, Barris R H. In situ studies on N2 fixation using the acetylene reduction technipue.Proc Nat Acad Sci, U S A, 1967,58: 2071–2078
Guo Houliang. Effects of inorganic salts on the structure of cells and formation of spheroplasts in blue-green algae.Acta Hydrobiologica Sinica, 1997,21: 190–193
Guo Houliang, Yu Dengzhou. The role of osmotic stabilizers in cells of blue-green algae.Journal of Wuhan University (Natural Science Edition), 1991,37(2): 121–125
Chen Xianjun, Guo Houliang, A study on culture-adaptation of the blue-green algaPhormidium lucidum to salts.Journal of Wuhan Botanical Research, 1995,13 (4): 349–353
Author information
Authors and Affiliations
Additional information
Supported by the National Natural Science Foundation of China
Yi Ping: born in 1974, Graduate student
Rights and permissions
About this article
Cite this article
Ping, Y., Houliang, G. & Kaiyao, H. Nitrogen-fixing inhibition by KCl in a blue-green algaAnabaena cylindrica . Wuhan Univ. J. Nat. Sci. 3, 239–242 (1998). https://doi.org/10.1007/BF02827561
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02827561