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Superhydrophobic Terrestrial Cyanobacteria and Land Plant Transition

Barthlott, Wilhelm ; Büdel, Burkhard; Mail, Matthias 1,2; Neumann, Klaus Michael; Bartels, Dorothea; Fischer, Eberhard
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Karlsruhe Nano Micro Facility (KNMF), Karlsruher Institut für Technologie (KIT)

Abstract:

Plants and other organisms have evolved structures and mechanisms for colonizing land since the Early Ordovician. In this context, their surfaces, the crucial physical interface with the environment, are mainly considered barriers against water loss. It is suggested that extreme water repellency (superhydrophobicity) was an additional key innovation for the transition of algae from water to land some 400 mya. Superhydrophobicity enhances gas exchange on land and excludes aquatic competitors in water films. In a different context, in material science and surface technology, superhydrophobicity has also become one of the most important bioinspired innovations enabling the avoidance of water films and contamination. Here, we present data for an extremely water-repellent cyanobacterial biofilm of the desiccation tolerant Hassallia byssoidea providing evidence for a much earlier prokaryotic Precambrian (ca. 1–2 bya) origin of superhydrophobicity and chemical heterogeneities associated with land transition. The multicellular cyanobacterium is functionally differentiated in a submerged basal hydrophilic absorbing portion like a “rhizoid” and an upright emersed superhydrophobic “phyllocauloid” filament for assimilation, nitrogen fixation, and splash dispersed diaspores. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000148205
Veröffentlicht am 06.07.2022
Originalveröffentlichung
DOI: 10.3389/fpls.2022.880439
Scopus
Zitationen: 3
Web of Science
Zitationen: 2
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1664-462X
KITopen-ID: 1000148205
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Weitere HGF-Programme 43.35.01 (POF IV, LK 01) Platform for Correlative, In Situ & Operando Charakterizat.
Erschienen in Frontiers in Plant Science
Verlag Frontiers Media SA
Band 13
Seiten Art.-Nr.: 880439
Vorab online veröffentlicht am 24.05.2022
Nachgewiesen in Scopus
Dimensions
Web of Science
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