Hidrológiai Közlöny 2006 (86. évfolyam)

6. szám - XLVII. Hidrobiológus Napok: Vizeink élővilágát érintő környezeti változások Tihany, 2005. október 5–7.

53 Haenen, O. L. M, Davidse, A. (2001): First isolation and pathogenicity studies with Pseudomonas anguilliseptica from diseased European eel Anguilla anguilla (L.) in the Netherlands. Aquaculture. 196: 27­Hugo, C. J., Segers, P., Hoste, B ., Vancanneyt, M., Kersters, K. (2003):Chryseobacterium joostei sp. nov., isolated from the dairy environment. Int. J. Syst. Evol. Microbiol. 53: 771-777. Jones, D.. Keddie, R. M: Genus Brevibacterium. In: Sneath, P. H. A., Mair, N. S., Sharpé, M. E„ Holt, J. G. (eds) (1986): Bergey's Ma­nual of Systematic Bacteriology Vol. 2. Williams and Wilkins. Bal­timore. 1301-1313, 1986. Kawase, T.. Saito, A., Sato, T., Kanai, R., Fujii, T., Nicaidou, N., Miya­shita, K., Watanabe, T.: Distribution and phylogenetic analysis of family 19 chitinases in Actinobacteria. Appl. Environ. Microbiol. 70: 1135-1144, 2004. Kämpfer, P., Schulze, R.Jäckel, U.,: Malik, K. A., A mann, R., Spring. S. 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(1988): Ultrastructural studies on the alimentary tract of Eudiaptomus gracilis. Zool. Anz. 220: 152-162. Pacha. R. E., Ordal, E. J. (1967): Histopathology of experimental co­lumnaris disease in young salmon. J. Comp. Pathol. 77: 419-423. Pidiyar, V., Kaznowski, A.,Narayan .N.B., Patole, M., Shouche, Y.S. (2002): Aeromonas culicicola sp. nov., from the midgut of Culex quinquefasciatus. Int. J. Syst. Evol. Microbiol. 52: 1723-1728. Podani, J. (2001): SYN-TAX 2000 computer programs for data analy­sis in ecology and systematics. User's manual. Poindexter, I. S. (1991): Dimorphic prosthecate bacteria: the genera Caulobacter, Asticcacaulis, Hyphomicrobium. Hvphomonas and Thiodendron. In: Balows, A., Trüper, H. G„ Dworkin, M., Harder, W, Schleifer, K. (eds.) The Procariotes 3. Springer­Verlag. New York. 2176-2196. Rainey, F. A., Rainey, W. N., Kroppenstedt, R. M, Stackebrandt, E.(1996): The genus Nocardiopsis represents a phylogenetically co­herent taxon and a distinct actinomycete lineage: proposal of No­cardiopsaceae fam. nov. Int. J. Syst. Bacteriol. 46: 1088-1092. Reichenbach, H., Dworkin, M,: The order Cytophagales In: Starr, M. P., Stolp, H„ Truper, H. G„ Balows, A„ Schlegel, H. G. (eds): The Prokaryotes Springer­Verlag New York. 374-376, 1 981 . Stead, D. E„ Sellwood, J. E.. Wilson. J., Viney, 1.(1992): Evaluation of a commercial microbial identification system based on fatty acid profiles for rapid, accurate identification of plant pathogenic bacte­ria. J. Appl. Bacteriol. 72: 315-321. Tan, L.. Grewal, P. S. (2002): Endotoxin activity of Moraxella osloen­sis against the Gray Garden Slug, Deroceras reticulatum. Appl. En­viron. Microbiol. 68: 3943-3947. Tóth, E. (1996): The species composition of oligotrophic bacterial communities of Lake Balaton - A numerical analysis. Acta Micro­biologia et lmmunologica Hungarica. 43: 333-338. Willems, A., Busse, J., Goor, M, Pot. B., Falsén, E., Jantzen, E., Hoste, B., Gillis. M., Kersters, K., Auling, G., De Ley, J. (1989): Hydrogenophaga, a new genus of hydrogen-oxidizing bacteria that includes Hydrogeno­phaga flava comb. nov. (formerly Pseudomonas flava), Hydrogenopha­ga palleronii (formerly Pseudomonas palleronii), Hydrogenophaga pse­udoflava (formerly Pseudomonas pseudlflava and „ Pseudomonas car­boxydoflava") and Hydrogenophaga taeniospiralis (formerly Pseudo­monas taeniospiralis). Int. J. Syst. Bacteriol. 39: 319-333. Zánkai, N.P., PonyiJ. (1997): Nyíltvízi planktonrák együttesek szerke­zetének tér- és időbeli változása a Balaton két, trofitásban eltérő te­rületén (Keszthelyi és Siófoki medence). Állatt. Közi. 82: 87-108. £ 100% •jz N IS) o oe c •u O t o a. o ŰQ 80% 60% 40% 20% 0% y # fakultatív anaerob Gram negatív • aerob Gram negatív K Chryseobacterium E Staphylococcus Actinobacteria Exiguobacterium 1. ábra. A minták baktériumközösségeinek összetétele Actinobacteria: Microbacterium, Micrococcus, Nocardioides, Promicromonospora; Aerob Gram-negatív szervezetek: Pseudomonas, Brevundimonas, Sphingomonas, Hydrogenophaga, Moraxella; Fakultatív anaerob Gram-negatív szervezetek: Aeromonas, Serratia o ca >1 e 03 <D 80 60 40 e o X) • S— W £ "3 Q. 20 o 00 c OJ <u £ H <u N M J2 53 crt N =o c S u N -O U u polimerek • Daphnia • Eudiaptomus ábra. A két rákmintából származó baktériumtörzsek polimer-bontó képessége Cultured bacterial communities of planktonic crustaceans (Daphnia cucullata, Eudiaptomus gracilis) of Lake Balaton Homonnay Z. G., KékiZs., G.-Tóth L., Tóth E. Abstract:Culturable bacterial communities of two planktonic crustacean species (Daphnia cucullata and Eudiaptomus gracilis) and of the open water of Lake Balaton were studied. For the cultivation of bacteria the following media were used: KingB, nutrient, Cytophaga agar medium, Kidney disease medium, oligotrophic, chitin and pepton-yeast extract media. From the randomly isolated bacteria representative strains were selected for detail studies: 54/Daphnia, 49/Eudiaptomus and 27/water samp­le. The 130 bacterial strains were grouped after their fatty acid profile then the phenon representative and ail ungrouped strains were subjected to 16S rDNA sequence a­nalysis. The biopolimer degradation capacity and haemolysine production of the strains were also tested. From the water sample and from both crustacean species Mic­robacterium oxydans. Micrococcus luteus and Aeromonus culicicola could be detected. Exiguobacterium aurantiacum and Chryseobacterium joostei occurred only in the crustacean species. Differences in the composition of bacterial communities between the two crustacean species could be demonstrated by the differences in their Actinobacteria and Proteobac­teria communities. Genera Brevundimonas and Rhodococcus appeared just in the water sample. 39 % of crustacean originating strains showed strong ß- haemolytic activity. Keywords: bacteria, planktonic crustaceans, cultivation, fatty acid analysis, sequence analysis, pathogenity

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