Effect of N2-fixing Cyanobacteria on higher plants grown in sand
2000
Simeunovic, J.B. | Svircev, Z.B. | Gajin, S.K. (University of Novi Sad, Novi Sad (Yugoslavia). Institute of Biology)
The results of the co-cultivation of cyanobacterial isolates (Nostoc and Anabaena strains) and some higher plant species of agricultural importance: sugar beet (Beta vulgaris), wheat (Triticum vulgare) and rice (Oryza sativa) are presented. The experiment was performed in sand culture in order to determine the interactive effect of the participants. During the co-cultivation of the cyanobacterial isolates and plants, diverse effects were observed on the plant length, dry weight and nitrogen content of the roots and plant shoots. Also, in certain cases of rice, penetration of cyanobacteria into the roots cells was noticed. Our results indicate statistically significant differences in the tested parameters and in the contribution of the N2-fixing cyanobacteria to the plants during the co-cultivation with cyanobacteria, as compared with the control plants. The influence of the cyanobacteria on the plants grown in sand culture seems to be very specific and the kind of relations depends on both the strain and plant species.
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