FN Archimer Export Format
PT J
TI Acidisoma silvae sp. nov. and Acidisomacellulosilytica sp. nov., Two Acidophilic Bacteria Isolated from Decaying Wood, Hydrolyzing Cellulose and Producing Poly-3-hydroxybutyrate
BT 
AF Mieszkin, Sophie
   Pouder, Eva
   Uroz, Stéphane
   Simon-Colin, Christelle
   Alain, Karine
AS 1:2,3;2:3;3:2;4:1;5:4;
FF 1:;2:;3:;4:PDG-REM-EEP-LMEE;5:;
C1 Laboratoire de Microbiologie des Environnements Extrêmes LM2E, Université de Brest, CNRS, Ifremer, IUEM, Rue Dumont d’Urville, F-29280 Plouzané, France
   Centre INRAE-Grand Est-Nancy, Université de Lorraine, INRAE, UMR IAM, 54280 Champenoux, F-54000 Nancy, France
   Laboratoire de Microbiologie des Environnements Extrêmes LM2E, Université de Brest, CNRS, Ifremer, IUEM, Rue Dumont d’Urville, F-29280 Plouzané, France
   Laboratoire de Microbiologie des Environnements Extrêmes LM2E, Université de Brest, CNRS, Ifremer, IUEM, Rue Dumont d’Urville, F-29280 Plouzané, France
C2 IFREMER, FRANCE
   INRAE, FRANCE
   UBO, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-REM-EEP-LMEE
UM BEEP-LM2E
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-p187
   copubli-univ-france
IF 4.926
TC 3
UR https://archimer.ifremer.fr/doc/00725/83673/88719.pdf
   https://archimer.ifremer.fr/doc/00725/83673/88720.zip
LA English
DT Article
DE ;cellulose hydrolysis;poly-3-hydroxybutyrate;decaying oak wood;acidophilic;Acidisoma cellulosilytica sp. nov.;Acidisoma silvae sp. nov.
AB Two novel strains, HW T2.11T and HW T5.17T, were isolated from decaying wood (forest of Champenoux, France). Study of the 16S rRNA sequence similarity indicated that the novel strains belong to the genus Acidisoma. The sequence similarity of the 16S rRNA gene of HW T2.11T with the corresponding sequences of A. tundrae and A. sibiricum was 97.30% and 97.25%, while for HW T5.17T it was 96.85% and 97.14%, respectively. The DNA G+C contents of the strains were 62.32–62.50%. Cells were Gram-negative coccobacilli that had intracellular storage granules (poly-3-hydroxybutyrate (P3HB)) that confer resistance to environmental stress conditions. They were mesophilic and acidophilic organisms growing at 8–25 °C, at a pH of 2.0–6.5, and were capable of using a wide range of organic compounds and complex biopolymers such as starch, fucoidan, laminarin, pectin and cellulose, the latter two being involved in wood composition. The major cellular fatty acid was cyclo C19:0ω8c and the major quinone was Q-10. Overall, genome relatedness indices between genomes of strains HW T2.11T and HW T5.17T (Orthologous Average Nucleotide Identity (OrthoANI) value = 83.73% and digital DNA-DNA hybridization score = 27.5%) confirmed that they belonged to two different species. Genetic predictions indicate that the cyclopropane fatty acid (CFA) pathway is present, conferring acid-resistance properties to the cells. The two novel strains might possess a class IV polyhydroxyalcanoate (PHA) synthase operon involved in the P3HB production pathway. Overall, the polyphasic taxonomic analysis shows that these two novel strains are adapted to harsh environments such as decaying wood where the organic matter is difficult to access, and can contribute to the degradation of dead wood. These strains represent novel species of the genus Acidisoma, for which the names Acidisoma silvae sp. nov. and Acidisoma cellulosilytica sp. nov. are proposed. The type strains of Acidisoma silvae and Acidisoma cellulosilytica are, respectively, HW T2.11T (DSM 111006T; UBOCC-M-3364T) and HW T5.17T (DSM 111007T; UBOCC-M-3365T). 
PY 2021
PD OCT
SO Microorganisms
SN 2076-2607
PU MDPI AG
VL 9
IS 10
UT 000712826400001
DI 10.3390/microorganisms9102053
ID 83673
ER

EF