Rhizome-associated bacterial communities of healthy and declining reed stands in Lake Velencei, Hungary

Adrienn Micsinai, A. Borsodi, Viktória Csengeri, Andrea Horváth, Orsolya Oravecz, Marcell Nikolausz, Mária N. Reskóné, K. Márialigeti

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Lake Velencei is a shallow soda lake with extensive reed coverage. In this study, the bacterial communities of reed (Phragmites australis (Cav.) Trin. ex Steudel) rhizomes from healthy and declining stands were compared. Inner and outer rhizome surfaces were sampled. Samples were plated and isolated in September 1998 and June 1999. Phenotypic data of 371 bacterial strains were used for cluster analysis. Identification of phena was based on partial 16S rDNA sequence analysis of representative strains. Healthy reed stand rhizomes in fall 1998 were dominantly colonised by facultatively fermentative organisms, like Erwinia billingiae, Aeromonas sobria, Pantoea agglomerans, and Pseudomonas azotoformans. In the June 1999 sample, mainly Kocuria rosea and various Bacillus spp. dominated. In declining stands of September 1998, a saprotrophic community was found: Acinetobacter spp., Aeromonas hydrophila, Curtobacterium luteum, Agrobacterium vitis, and two further groups representing presumably new taxa. In June 1999, reed rhizomes were colonised by Kocuria rosea, but Dietzia maris and Bacillus cohnii could be isolated as well. Healthy and declining reed stand rhizomes can be distinguished based on the culturable bacterial community. No obligately plant pathogenic bacteria were found, however the possibility of a local, opportunistic bacterial invasion can not be ruled out (e.g. Curtobacterium). The presence of potentially beneficial bacterial species was demonstrated in the healthy reed rhizome rhizosphere (e.g. Pseudomonas azotoformans, Pantoea agglomerans).

Original languageEnglish
Pages (from-to)707-713
Number of pages7
JournalHydrobiologia
Volume506-509
DOIs
Publication statusPublished - Nov 15 2003

Fingerprint

rhizome
bacterial communities
Hungary
rhizomes
Pseudomonas azotoformans
lakes
lake
Kocuria rosea
Pantoea agglomerans
Curtobacterium luteum
Bacillus cohnii
Dietzia maris
Curtobacterium
Rhizobium vitis
Aeromonas sobria
Erwinia
plant pathogenic bacteria
Acinetobacter
Aeromonas hydrophila
Phragmites australis

Keywords

  • Bacterial community
  • Lake Velencei
  • Phragmites australis
  • Reed die-back
  • Rhizomes

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Rhizome-associated bacterial communities of healthy and declining reed stands in Lake Velencei, Hungary. / Micsinai, Adrienn; Borsodi, A.; Csengeri, Viktória; Horváth, Andrea; Oravecz, Orsolya; Nikolausz, Marcell; Reskóné, Mária N.; Márialigeti, K.

In: Hydrobiologia, Vol. 506-509, 15.11.2003, p. 707-713.

Research output: Contribution to journalArticle

Micsinai, Adrienn ; Borsodi, A. ; Csengeri, Viktória ; Horváth, Andrea ; Oravecz, Orsolya ; Nikolausz, Marcell ; Reskóné, Mária N. ; Márialigeti, K. / Rhizome-associated bacterial communities of healthy and declining reed stands in Lake Velencei, Hungary. In: Hydrobiologia. 2003 ; Vol. 506-509. pp. 707-713.
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AU - Oravecz, Orsolya

AU - Nikolausz, Marcell

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AU - Márialigeti, K.

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