TY - JOUR AU - Makk, Judit AU - Ács, Éva AU - Márialigeti, Károly AU - Kovács, G TI - Investigations on the Danube gravel-biofilm diatom-associated bacterial communities JF - BIOLOGIA (BRATISLAVA) J2 - BIOLOGIA VL - 58 PY - 2003 IS - 4 SP - 729 EP - 742 PG - 14 SN - 0006-3088 UR - https://m2.mtmt.hu/api/publication/1102254 ID - 1102254 AB - Gravel samples were collected from the northern water gaining area of bank wall filtered wells of Budapest at the north- eastern shoreline of Szentendre Island, in the main arm of the Danube river. On the island there are rows of bank wall filtered wells, which supply with drinking water the capital of Hungary. Gravel washing fluid samples were plated onto three different algal media in order to isolate diatom-associated bacterial strains. Isolates were purified and representative strains were selected on the basis of cultural-morphological features, biochemical investigations, and ARDRA. Selected strains were identified by the Biolog phenotypic fingerprint method and by 16S rDNA sequencing. Our results have shown that besides the dominant Pseudomonas Gram-negative genera were Flavimonas, Flavobacterium, Mycoplana, Sinorhizobium, Afipia, Variovorax, Sphingomonas whereas the Gram-positive ones were Streptomyces, Rhodococcus, and Microbacterium. The bacteria isolated were able to utilize such sugars and amino acids as only carbon sources, which have been proved to be among extracellular products of diatoms. Thus it can be supposed that association between diatoms and bacteria is also based upon metabolic interactions. LA - English DB - MTMT ER - TY - JOUR AU - Beszteri, B AU - Ács, Éva AU - Makk, Judit AU - Kovacs, G AU - Márialigeti, Károly AU - Kiss, Keve Tihamér TI - Phylogeny of six naviculoid diatoms based on 18S rDNA sequences JF - INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY J2 - INT J SYST EVOL MICR VL - 51 PY - 2001 IS - 4 SP - 1581 EP - 1586 PG - 6 SN - 1466-5026 DO - 10.1099/00207713-51-4-1581 UR - https://m2.mtmt.hu/api/publication/1396089 ID - 1396089 AB - 18S rDNA sequences of six Naviculaceae species [Amphora montana, Gomphonema parvulum, Eolimna minima (syn. Navicula minima), Eolimna subminuscula (syn, Navicula subminuscula), Navicula veneta and Phaeodactylum tricornutum] were determined in order to assess the monophyly of this important group of diatoms, to date not included in 18S rDNA databases, and also that of the recently described genus Eolimna. Phylogenetic trees were constructed using other known diatom 18S rDNA sequences, and best tree topologies obtained were tested against alternative trees for their reliability, The analyses do not reject the monophyly of Naviculaceae and strongly support the separation of the genus Eolimna from Navicula sensu late. The two species of Eolimna, however, do not appear to be each other's closest relatives among the species investigated: rather, E. subminuscula shows affinities to A, montana, and E, minima to P. tricornutum. A. montana, a species which it has been proposed should be transferred into a separate taxon from the other five species, was found to have grouped well within them in all analyses. LA - English DB - MTMT ER - TY - JOUR AU - Szabó-Taylor, Katalin AU - Ács, Éva AU - Pápista, É AU - Kiss, Keve Tihamér AU - Barreto, Sára AU - Makk, Judit TI - Periphyton and phytoplankton in the Soroksár-Danube in Hungary.. I. Periphytic algae on reed stems. TS - I. Periphytic algae on reed stems. JF - ACTA BOTANICA HUNGARICA J2 - ACTA BOT HUNG VL - 43 PY - 2001 IS - 1-2 SP - 13 EP - 35 PG - 23 SN - 0236-6495 DO - 10.1556/ABot.43.2001.1-2.2 UR - https://m2.mtmt.hu/api/publication/1102248 ID - 1102248 LA - English DB - MTMT ER - TY - JOUR AU - Ács, Éva AU - Szabó-Taylor, Katalin AU - Pápista, É AU - Kiss, Keve Tihamér AU - Barreto, Sára AU - Makk, Judit TI - Étude des algues épiphytes et planctoniques d’un bras du Danube (Soroksári-Duna, Hongrie) JF - CRYPTOGAMIE ALGOLOGIE J2 - CRYPTOGAMIE ALGOL VL - 21 PY - 2000 IS - 3 SP - 254 EP - 255 PG - 2 SN - 0181-1568 DO - 10.1016/S0181-1568(01)80003-9 UR - https://m2.mtmt.hu/api/publication/1102242 ID - 1102242 N1 - In: Compte rendu du 18e colloque de l'Association des diatomistes de langue française; pp.213-258 AB - "Rövid közlemény"-ként volt besorolva, de lehet, hogy ez csak absztrakt ? KR LA - French DB - MTMT ER - TY - JOUR AU - Ács, Éva AU - Kiss, Keve Tihamér AU - Szabó-Taylor, Katalin AU - Makk, Judit TI - Short-term colonization sequence of periphyton on glass slides in a large river (River Danube, near Budapest) JF - ALGOLOGICAL STUDIES J2 - ALGOLOGICAL STUDIES VL - 100 PY - 2000 IS - Arc.H.Suppl.136 SP - 135 EP - 156 PG - 22 SN - 1864-1318 UR - https://m2.mtmt.hu/api/publication/1101115 ID - 1101115 LA - English DB - MTMT ER - TY - JOUR AU - Makk, Judit AU - Kovács, G AU - Márialigeti, Károly AU - Ács, Éva TI - Diatomákhoz asszociált baktériumközösségek dunai kavicsbevonatokban JF - HIDROLÓGIAI KÖZLÖNY J2 - HIDROL KOZL VL - 79 PY - 1999 IS - 6 SP - 364 EP - 366 PG - 3 SN - 0018-1323 UR - https://m2.mtmt.hu/api/publication/1102240 ID - 1102240 LA - Hungarian DB - MTMT ER - TY - CONF AU - Barreto, Sára AU - Ács, Éva AU - Makk, Judit AU - Bugyi, G AU - Böddi, Béla TI - Preliminary algological investigations in Soroksár-arm of River Danube. T2 - Limnologische Berichte Donau 1997 PY - 1997 SP - 159 EP - 162 PG - 4 UR - https://m2.mtmt.hu/api/publication/1102080 ID - 1102080 LA - English DB - MTMT ER - TY - CONF AU - Makk, Judit AU - Ács, Éva TI - Investigation of epilithic biofilms in the River Danube T2 - Limnologische Berichte Donau 1997 PY - 1997 SP - 199 EP - 202 PG - 4 UR - https://m2.mtmt.hu/api/publication/1102082 ID - 1102082 LA - English DB - MTMT ER - TY - CHAP AU - Makk, Judit AU - Ács, Éva ED - Berczik, Árpád TI - Interaction between diatoms and bacteria in the biofilm of the River Danube. T2 - Limnologische Berichte Donau 1996 : Wissenschaftliche Referate : 31. Konferenz der IAD in Baja/Ungarn 1996 PB - Magyar Dunakutató Állomás CY - Vácrátót CY - Göd SN - 9638391200 PY - 1996 SP - 109 EP - 114 PG - 6 UR - https://m2.mtmt.hu/api/publication/1102078 ID - 1102078 LA - English DB - MTMT ER -