Cyanobacteria in terrestrial symbiotic systems

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Filamentous cyanobacteria are important primary producers and N2 fixers in many terrestrial environments. As reduced nitrogen is often limiting, some thalloid liverworts (Marchantiophyta), hornworts (Anthocerophyta), the water fern Azolla (Salviniales), cycads (Cycadophyta), and the angiosperm Gunnera (Gunnerales) have evolved the ability to establish stable and structurally well-defined symbioses with N2-fixing cyanobacteria. Also a wide diversity of lichen-forming fungi have cyanobacteria as photosynthetic symbionts or as N2-fixing symbionts. Cyanolichen symbioses have evolved independently in different fungal lineages, and evolution has often resulted in convergent morphologies in distantly related groups. DNA techniques have provided a wealth of new information on the diversity of symbiotic cyanobacteria and their hosts. The fact that many plants and fungi engage in many different symbioses simultaneously underlines the probable significance of diffuse evolutionary relationships between different symbiotic systems, including cyanobacterial and mycorrhizal associations. This review introduces the reader to recent research on symbiotic cyanobacteria in terrestrial ecosystems and shortly describes the astonishing range of diversity in these ecologically important associations.
Titel på gästpublikationModern topics in the Phototrophic Prokaryotes : Environmental and Applied Aspects
RedaktörerPatrick Hallenbeck
Antal sidor51
FörlagSpringer International Publishing AG
Utgivningsdatumapr 2017
ISBN (tryckt)978-3-319-46259-2
ISBN (elektroniskt)978-3-319-46261-5
StatusPublicerad - apr 2017
MoE-publikationstypA3 Del av bok eller annan forskningsbok


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