Expression of lec-1, a mycobiont gene encoding a galectin-like protein in the lichen Peltigera membranacea

Miao, Vivian; Manoharan, Sheeba S.; Snæbjarnarson, Vésteinn; Andrésson, Ólafur S.

doi:10.1007/s13199-012-0175-1

Cited by 31 publications

(24 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1D), most mycobionts (almost exclusively from the Ascomycota) are refractory to propagation in vitro by standard methods, and intact lichens cannot be maintained artificially for long. Nevertheless, such limitations are gradually being overcome using advanced analytical platforms, e.g., metagenomics in the characterization of mycobiont lectin genes (6), and PCR-based phylogenetics in investigation of intrathalline bacterial diversity (7).…”

mentioning

confidence: 99%

Metagenomic natural product discovery in lichen provides evidence for a family of biosynthetic pathways in diverse symbioses

Kampa

Gagunashvili

Gulder

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

126

127

View full text Add to dashboard Cite

Bacteria are a major source of natural products that provide rich opportunities for both chemical and biological investigation. Although the vast majority of known bacterial metabolites derive from free-living organisms, increasing evidence supports the widespread existence of chemically prolific bacteria living in symbioses. A strategy based on bioinformatic prediction, symbiont cultivation, isotopic enrichment, and advanced analytics was used to characterize a unique polyketide, nosperin, from a lichen-associated Nostoc sp. cyanobacterium. The biosynthetic gene cluster and the structure of nosperin, determined from 30 μg of compound, are related to those of the pederin group previously known only from nonphotosynthetic bacteria associated with beetles and marine sponges. The presence of this natural product family in such highly dissimilar associations suggests that some bacterial metabolites may be specific to symbioses with eukaryotes and encourages exploration of other symbioses for drug discovery and better understanding of ecological interactions mediated by complex bacterial metabolites.biosynthesis | Peltigera membranacea | trans-acyltransferase polyketide synthase | 13 C nuclear magnetic resonance

show abstract

mentioning

confidence: 99%

Metagenomic natural product discovery in lichen provides evidence for a family of biosynthetic pathways in diverse symbioses

Kampa

Gagunashvili

Gulder

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

Self Cite

126

127

View full text Add to dashboard Cite

show abstract

“…Recognition of compatible cyanobiont cells is believed to be performed by specific lectins produced and secreted by the plant or fungal host. Lectins have been identified from the fungal hosts of several cyanolichen species Miao et al 2012), and a glycosylated arginase acting as a fungal lectin has been found to bind to Nostoc from cyanolichens to function in the recruitment and adhesion of cyanobiont cells to the hyphal surface (Díaz et al 2009(Díaz et al , 2011Vivas et al 2010).…”

Section: Cyanobacterial Adaptations To Symbiosismentioning

confidence: 99%

Cyanobacteria in Terrestrial Symbiotic Systems

Rikkinen

2017

Modern Topics in the Phototrophic Prokaryotes

View full text Add to dashboard Cite

Filamentous cyanobacteria are important primary producers and N 2 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 welldefined symbioses with N 2 -fixing cyanobacteria. Also a wide diversity of lichenforming fungi have cyanobacteria as photosynthetic symbionts or as N 2 -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.

show abstract

“…The first study to compare the gene expression profiles of symbionts in both symbiotic and aposymbiotic (cultured alone) states, revealed that many algal and fungal genes were suppressed in the symbiotic state (Trembley et al 2002). Two later studies provided additional knowledge of the genetic background of the role of recognition and defense responses during successful lichen symbiosis (Joneson et al 2011;Miao et al 2012;Athukorala et al 2015). In addition, changes in gene expression involved in fungal and algal metabolism have been observed (Joneson et al 2011;Wang et al 2014), suggesting that a change in the expression of an array of genes responsible for a variety of functions in the compatible partners is needed for lichenization.…”

Section: R a F T 11mentioning

confidence: 99%

Interface between fungi and green algae in lichen associations

Piercey‐Normore

Athukorala

2017

Botany

View full text Add to dashboard Cite

It is widely recognized that the lichen is the product of a fungus and a photosynthetic partner (green alga or cyanobacterium) but its acceptance was slow to develop throughout history. The development of powerful microscopic and other lab techniques enabled better understanding of the interface between symbionts beginning with the contentious concept of the dual nature of the lichen thallus. Even with accelerating progress in understanding the interface between symbionts, much more work is needed to reach a level of knowledge consistent with that of other fungal interactions. This review describes the interface between algal and fungal symbionts in lichens, including the appearance of interacting symbionts, our current understanding of communication between symbionts, and emerging new concepts in light of the challenges and debates that have provided lichenology with an enriched history. Communication between symbionts occurs before physical contact, which has been studied by microscopy, movement of molecules between symbionts, and gene expression studies. New discoveries include the interaction with more than one alga in a lichen thallus as well as other unrelated fungi and bacteria typically found on or within the thallus. This mini review briefly describes our current state of knowledge and highlights new directions for further study.

show abstract

Expression of lec-1, a mycobiont gene encoding a galectin-like protein in the lichen Peltigera membranacea

Cited by 31 publications

References 45 publications

Metagenomic natural product discovery in lichen provides evidence for a family of biosynthetic pathways in diverse symbioses

Metagenomic natural product discovery in lichen provides evidence for a family of biosynthetic pathways in diverse symbioses

Cyanobacteria in Terrestrial Symbiotic Systems

Interface between fungi and green algae in lichen associations

Contact Info

Product

Resources

About