Opening the Gap: Rare Lichens With Rare Cyanobionts – Unexpected Cyanobiont Diversity in Cyanobacterial Lichens of the Order Lichinales

Jung, Patrick; Brust, Katharina; Schultz, Matthias; Büdel, Burkhard; Donner, Antje; Lakatos, Michael

doi:10.3389/fmicb.2021.728378

Cited by 21 publications

(27 citation statements)

References 69 publications

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“…Algal symbionts, by contrast, have been identified at species level for only a fraction of the symbioses for which fungal data are available. Only about 100 species have been named (Sanders & Masumoto, 2021), but DNA sequencing is uncovering evidence that phototroph diversity has been greatly underestimated (Muggia et al ., 2020; Jung et al ., 2021). Even so, patterns of phototroph occurrence are well enough resolved at a broad taxonomic scale that it is possible to construct a coarse matrix of the intersections of most symbiont match‐ups on these two branches of the tree of life.…”

Section: Diversity and Ecology Of Lichen Symbiosesmentioning

confidence: 99%

Evolutionary biology of lichen symbioses

et al. 2022

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Lichens are the symbiotic outcomes of open, interspecies relationships, central to which are a fungus and a phototroph, typically an alga and/or cyanobacterium. The evolutionary processes that led to the global success of lichens are poorly understood. In this review, we explore the goods and services exchange between fungus and phototroph and how this propelled the success of both symbiont and symbiosis. Lichen fungal symbionts count among the only filamentous fungi that expose most of their mycelium to an aerial environment. Phototrophs export carbohydrates to the fungus, which converts them to specific polyols. Experimental evidence suggests that polyols are not only growth and respiratory substrates but also play a role in anhydrobiosis, the capacity to survive desiccation. We propose that this dual functionality is pivotal to the evolution of fungal symbionts, enabling persistence in environments otherwise hostile to fungi while simultaneously imposing costs on growth. Phototrophs, in turn, benefit from fungal protection from herbivory and light stress, while appearing to exert leverage over fungal sex and morphogenesis. Combined with the recently recognized habit of symbionts to occur in multiple symbioses, this creates the conditions for a multiplayer marketplace of rewards and penalties that could drive symbiont selection and lichen diversification.

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Section: Diversity and Ecology Of Lichen Symbiosesmentioning

confidence: 99%

Evolutionary biology of lichen symbioses

et al. 2022

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“…Al Amin et al, 2021). However, the two strains investigated here are the first strains of this genus described from a desert environment, while the other species of the genus have multiple origins, including lichen symbioses (Jung et al, 2021a;Soares et al, 2021;Panou and Gkelis 2022). All of them have a very complex life cycle in common that can hamper biotechnological applications due to different metabolic activity depending on the developmental stage of the culture.…”

Section: Phylogenetic and Taxonomical Remarksmentioning

confidence: 99%

Rare earths stick to rare cyanobacteria: Future potential for bioremediation and recovery of rare earth elements

Paper

Koch

Jung

et al. 2023

Front. Bioeng. Biotechnol.

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Biosorption of metal ions by phototrophic microorganisms is regarded as a sustainable and alternative method for bioremediation and metal recovery. In this study, 12 cyanobacterial strains, including 7 terrestrial and 5 aquatic cyanobacteria, covering a broad phylogenetic diversity were investigated for their potential application in the enrichment of rare earth elements through biosorption. A screening for the maximum adsorption capacity of cerium, neodymium, terbium, and lanthanum was conducted in which Nostoc sp. 20.02 showed the highest adsorption capacity with 84.2–91.5 mg g-1. Additionally, Synechococcus elongatus UTEX 2973, Calothrix brevissima SAG 34.79, Desmonostoc muscorum 90.03, and Komarekiella sp. 89.12 were promising candidate strains, with maximum adsorption capacities of 69.5–83.4 mg g-1, 68.6–83.5 mg g-1, 44.7–70.6 mg g-1, and 47.2–67.1 mg g-1 respectively. Experiments with cerium on adsorption properties of the five highest metal adsorbing strains displayed fast adsorption kinetics and a strong influence of the pH value on metal uptake, with an optimum at pH 5 to 6. Studies on binding specificity with mixed-metal solutions strongly indicated an ion-exchange mechanism in which Na+, K+, Mg2+, and Ca2+ ions are replaced by other metal cations during the biosorption process. Depending on the cyanobacterial strain, FT-IR analysis indicated the involvement different functional groups like hydroxyl and carboxyl groups during the adsorption process. Overall, the application of cyanobacteria as biosorbent in bioremediation and recovery of rare earth elements is a promising method for the development of an industrial process and has to be further optimized and adjusted regarding metal-containing wastewater and adsorption efficiency by cyanobacterial biomass.

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“…is the only genus in this family and is symbiosed with the cyanobacterial photobiont known as Chroococcidiopsis, Myxosarcina, Gloeocapsa [2][3][4][5] or Chroococcales [6][7][8]. Through isolation and culture of lichen specimens and the construction of phylogenetic trees, Jung et al [9] identified cyanobionts of Peltula as Aliterella and Compactococcus gen. nov., Pseudocyanosarcina gen. nov., and an unknown species, but did not find Chroococcidiopsis, which is the only known unicellular terrestrial genus and could be considered robust support to delimit the genus Peltula.…”

Section: Introductionmentioning

confidence: 99%

Five New Species of the Lichen-Forming Fungal Genus Peltula from China

Yang¹,

Cheng²,

Zhang³

et al. 2022

JoF

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The genus Peltula is an important cyanobacterial lichen group. We performed a taxonomic study on the Peltula from China using phylogenetic analysis based on three gene loci (ITS, nuSSU, nuLSU) together with additional species delimitation analyses by ABGD, bPTP and GMYC approaches and the phenotypic characteristics. Five new species (Peltula lobulata, P. polycarpa, P. polyphylla, P. pseudoboletiformis and P. submarginata) were found and described. Peltula lobulata is diagnostic in its small thallus with plenty of lobules, rolled down and irregularly lobed margins, and uneven cracked surfaces. Peltula polycarpa has convex and rolled down lobes and numerous apothecia with a thalloid rim covering the whole lobe, and it can be distinguished from fertile P. farinosa (southern Switzerland) by a bright olive-green and epruinose surface, and the absence of isidia. Peltula polyphylla is differentiated from any other known Peltula species by a very small polyphyllous thallus composed of abundant olive-brown to olive-black small lobes growing tightly and sometimes anastomosing and attaching to the substrate by a large and strong umbilical cluster. Peltula submarginata is similar to P. marginata but differs in the presence of encircled epinecral and algae layers, and the absence of a lower cortex. Peltula pseudoboletiformis is different from the similar species P. boletiformis in greener lobes, more yellow–green umbilici and certain phylogenetic differences. Moreover, a key to the species of Peltula in China is also provided here.

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Opening the Gap: Rare Lichens With Rare Cyanobionts – Unexpected Cyanobiont Diversity in Cyanobacterial Lichens of the Order Lichinales

Cited by 21 publications

References 69 publications

Evolutionary biology of lichen symbioses

Evolutionary biology of lichen symbioses

Rare earths stick to rare cyanobacteria: Future potential for bioremediation and recovery of rare earth elements

Five New Species of the Lichen-Forming Fungal Genus Peltula from China

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