Multiphase Biomineralization: Enigmatic invasive siliceous diatoms produce crystalline calcite

H. Ehrlich , M. Motylenko , P.V. Sundareshwar , A. Ereskovsky , Izabela Zgłobicka , T. Noga , Tomasz Płociński , M.V. Tsurkan , E. Wyroba , Sz. Suski , H. Bilski , M. Wysokowski , H. Stocker , A. Makarova , D. Vyalikh , J. Walter , S.L. Molodtsov , V.V. Bzhenov , I. Petrenko , E. Langer , A. Richter , E. Niederschlag , Marcin Pisarek , A. Springer , M. Gelinsky , D. Rafaja , Andrzej Witkowski , D.C. Meyer , T. Jesionowski , Krzysztof Kurzydłowski


Diatoms are considered unicellular eukaryotic organisms exclusively depositing biogenic silica. Heretofore there has been no report of calcification by these algae. Here it is shown that calcium carbonate within the stalks of Didymosphenia geminata, a nuisance species that has prolifically colonized streams and rivers globally, is biogenic in origin and occurs as a network of calcite nanofibers. The nanofibrous framework in the mineralized polysaccharide matrix imparts mechanical support to the stalks, providing stability in variable flow conditions. The results demonstrate that D. geminata possesses cellular and periplasmic carbonic-anhydrases that contribute to carbon fixation and biomineralization, respectively. The activity of external carbonic-anhydrase was more than 50% of the total activity, which points to its role in anchoring this bioeroding diatom on hard surfaces. The first evidence of multiphase biomineralization by diatoms that deposit both biogenic silica and crystalline biogenic calcite which are imparting distinct functional advantage to the organism is provided. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Author H. Ehrlich - [Technische Universität Bergakademie Freiberg]
H. Ehrlich,,
, M. Motylenko - [Technische Universität Bergakademie Freiberg]
M. Motylenko,,
, P.V. Sundareshwar - [South Dakota School of Mines & Technology]
P.V. Sundareshwar,,
, A. Ereskovsky - [Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale]
A. Ereskovsky,,
, Izabela Zgłobicka (FMSE / DMD)
Izabela Zgłobicka,,
- Division of Materials Design
, T. Noga - [University of Rzeszów]
T. Noga,,
, Tomasz Płociński (FMSE / DMD)
Tomasz Płociński,,
- Division of Materials Design
, M.V. Tsurkan - [Leibniz-Institut für Polymerforschung Dresden e.V.]
M.V. Tsurkan,,
, E. Wyroba - [Nencki Institute of Experimental Biology of the Polish Academy of Sciences]
E. Wyroba,,
, Sz. Suski - [Nencki Institute of Experimental Biology of the Polish Academy of Sciences]
Sz. Suski,,
et al.`
Journal seriesAdvanced Functional Materials, ISSN 1616-301X
Issue year2016
Publication size in sheets0.5
Keywords in Polishbiokompozyty, biomineralizacja, biokrzemionka, kalcyt, okrzemki
Keywords in Englishbiocomposite; biomineralization; biosilica; calcite; diatoms
ASJC Classification1603 Electrochemistry; 3104 Condensed Matter Physics; 2502 Biomaterials; 2504 Electronic, Optical and Magnetic Materials
Languageen angielski
Ehrlich et al_2016_Adv Funct Mat.pdf 3.48 MB
Score (nominal)45
Score sourcejournalList
ScoreMinisterial score = 45.0, 30-07-2020, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 30-07-2020, ArticleFromJournal
Publication indicators WoS Citations = 9; Scopus Citations = 11; GS Citations = 18.0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 2.25; WoS Impact Factor: 2016 = 12.124 (2) - 2016=12.362 (5)
Citation count*22 (2020-09-15)
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