Trentepohlialean Algae (Trentepohliales, Ulvophyceae) Show Preference to Selected Mycobiont Lineages in Lichen Symbioses

2020 ◽  
Vol 56 (4) ◽  
pp. 979-993
Author(s):  
Magdalena Kosecka ◽  
Agnieszka Jabłońska ◽  
Adam Flakus ◽  
Pamela Rodriguez‐Flakus ◽  
Martin Kukwa ◽  
...  
Keyword(s):  
Lichen Symbioses

Joint Dispersal Does Not Imply Maintenance of Partnerships in Lichen Symbioses

2009 ◽  
Vol 59 (1) ◽  
pp. 150-157 ◽  
Author(s):  
Sabine Wornik ◽  
Martin Grube
Keyword(s):  
Lichen Symbioses

scholarly journals Algal switching among lichen symbioses

2001 ◽  
Vol 88 (8) ◽  
pp. 1490-1498 ◽  
Author(s):  
Michele D. Piercey-Normore ◽  
Paula T. DePriest
Keyword(s):  
Lichen Symbioses

scholarly journals 3D biofilms: in search of the polysaccharides holding together lichen symbioses

2020 ◽  
Vol 367 (5) ◽  
Author(s):  
Toby Spribille ◽  
Gulnara Tagirdzhanova ◽  
Spencer Goyette ◽  
Veera Tuovinen ◽  
Rebecca Case ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Structural Cell ◽  
Complex Architectures ◽  
Neutral Sugars ◽  
Polysaccharide Composition ◽  
Lichen Symbioses ◽  
Extracellular Polymer ◽  
Wall Components ◽  
Lines Of Evidence

ABSTRACT Stable, long-term interactions between fungi and algae or cyanobacteria, collectively known as lichens, have repeatedly evolved complex architectures with little resemblance to their component parts. Lacking any central scaffold, the shapes they assume are casts of secreted polymers that cement cells into place, determine the angle of phototropic exposure and regulate water relations. A growing body of evidence suggests that many lichen extracellular polymer matrices harbor unicellular, non-photosynthesizing organisms (UNPOs) not traditionally recognized as lichen symbionts. Understanding organismal input and uptake in this layer is key to interpreting the role UNPOs play in lichen biology. Here, we review both polysaccharide composition determined from whole, pulverized lichens and UNPOs reported from lichens to date. Most reported polysaccharides are thought to be structural cell wall components. The composition of the extracellular matrix is not definitively known. Several lines of evidence suggest some acidic polysaccharides have evaded detection in routine analysis of neutral sugars and may be involved in the extracellular matrix. UNPOs reported from lichens include diverse bacteria and yeasts for which secreted polysaccharides play important biological roles. We conclude by proposing testable hypotheses on the role that symbiont give-and-take in this layer could play in determining or modifying lichen symbiotic outcomes.

Ecophysiology of Lichen Symbioses

1983 ◽  
pp. 423-467 ◽  
Author(s):  
U. Matthes ◽  
G. B. Feige
Keyword(s):  
Lichen Symbioses

Modifications of nitrogen-fixing algae in lichen symbioses

Nature ◽  
1977 ◽  
Vol 265 (5592) ◽  
pp. 371-372 ◽  
Author(s):  
W. D. P. STEWART ◽  
P. ROWELL
Keyword(s):  
Nitrogen Fixing ◽  
Lichen Symbioses
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