Roseimaritima ulvae gen. nov., sp nov and Rubripirellula obstinata gen. nov., sp nov two novel planctomycetes isolated from the epiphytic community of macroalgae

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Bondoso, J (Author) Other; Albuquerque, L (Author) Other; Nobre, MF (Author) Other; Lobo da Cunha, A (Author) Other; da Costa, MS (Author) Other; lage, om (Author) FCUP

Journal

Title: Systematic and Applied Microbiology

Vol. 38

Pages: 8-15

ISSN: 0723-2020

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 47 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00A-6QS

DOI: 10.1016/j.syapm.2014.10.004

Abstract (EN): Four isolates, belonging to the deep-branching phylum Planctomycetes, were recovered from the biofilm of two marine macroalgae, Ulva sp. and Laminaria sp., from the Northern coast of Portugal. These strains were light pink- or red-pigmented; the cells were variable in shape and usually organized in rosettes. They had a dimorphic cell cycle with budding reproduction. The organisms were chemoheterotrophic, strictly aerobic and mesophilic. The 16S rRNA gene sequence analysis showed that the strains belong to the family Planctomycetaceae with Rhodopirellula as the closest genus. The isolates form two separate branches (strain LF1T forms one branch and the strains UC8T. UF3 and UF42 form a second branch) clearly separated from Rhodopirellula baltica with 94.2% and 93.8% 165 rRNA gene sequence similarity, respectively. Based on differential characteristics that distinguish the novel genera from R. baltica, such as cell size and shape, ultrastructure, enzymatic activities, substrate utilization pattern, fatty acid composition, phospholipid profiles and phylogeny we propose that the isolates represent two novel genera of the order Planctomycetales. Roseimaritima ulvae gen. nov., sp. nov. (type strain is UC8T = DSM 254541 = LMG 277781) and Rubripirellula obstinata gen. nov.. sp. nov. (type strain is LF1 LmG 27779T =CECT 86021).

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8