References of "Sérusiaux, Emmanuel"
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See detailDismantling the treasured flagship lichen Sticta fuliginosa (Peltigerales) into four species in Western Europe
Magain, Nicolas; Sérusiaux, Emmanuël ULg

in Mycological Progress (2015), 14:97

In the framework of a worldwide project on the phylogeny of the lichen genus Sticta, dedicated sampling was performed in four regions of Western Europe, roughly along an East-West line between N 48°02’ E ... [more ▼]

In the framework of a worldwide project on the phylogeny of the lichen genus Sticta, dedicated sampling was performed in four regions of Western Europe, roughly along an East-West line between N 48°02’ E 07°01’ and N 52°01’ W 09°30’, ranging from France/Vosges to Ireland/Kerry. Five clearly distinct ITS haplotypes were detected for isidia-producing species where only two were expected. Subtle anatomical and morphological characters, together with a strongly supported 4-loci molecular phylogeny, permit to distinguish, besides the easily recognized S. canariensis and S. limbata: • the two « well-known » S. fuliginosa and S. sylvatica whose type collections have been carefully reassessed; the former is widespread in both hemispheres, while the latter is correctly identified only from continental Europe and the Andes in Colombia; the barcode ITS of S. fuliginosa differs by a single substitution from S. limbata (with a single exception), and the 4-loci phylogenetic tree does not resolve them as distinct lineages, most probably highlighting a very recent divergence and incomplete lineage sorting; • three species that were formely included in S. fuliginosa: the resurrected S. ciliata Taylor, belonging to a complex group yet to be disentangled and occurring in the Neotropics, Africa, Macaronesia and Western Europe, and two species described as new for science, S. fuliginoides, found in continental Europe, the Canary Islands, eastern North America and Colombia, and S. atlantica only known from Ireland and the Azores archipelago. Molecular inferences demonstrate active divergence and dispersion within S. ciliata that may require recognition of further species. Fresh material can be identified with a morphological and anatomical preliminary key provided here. We propose that the taxonomy of all lichen species be urgently reviewed in the light of molecular data in an evolutionary context, particularly those used as bioindicators of environmental change and woodland management. [less ▲]

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See detailThe description of a new species reveals underestimated diversity in the lichen genus Bulbothrix (Parmeliaceae) in Africa
Masson, Didier; Benatti, Michel; Sérusiaux, Emmanuël ULg

in Lichenologist (2015), 47

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See detailPelouses calcaires : une application de la portance écologique pour le renforcement du réseau écologique
Hendrickx, Sébastien ULg; Van Der Kaa, Claire ULg; Sérusiaux, Emmanuël ULg

in Notes de recherche - Conférence Permanente du Développement Territorial Région Wallonne (2014), 48

La méthodologie d’évaluation de la portance écologique du territoire a ensuite été paramétrée afin d'objectiver l’intérêt du territoire wallon du point de vue des pelouses calcaires. Il résulte de cette ... [more ▼]

La méthodologie d’évaluation de la portance écologique du territoire a ensuite été paramétrée afin d'objectiver l’intérêt du territoire wallon du point de vue des pelouses calcaires. Il résulte de cette application un outil cartographique qui permet de discriminer les sites potentiels les plus efficaces pour la restauration de ces pelouses sur le plan écologique. Cet exercice démontre ainsi très concrètement l'utilité de la portance écologique en tant qu'aide à la décision pour orienter les dépenses de préservation de leur réseau écologique spécifique. [less ▲]

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See detailLa carte blanche : Enjeux de la Politique agricole commune en Wallonie : une volonté de découpler nature et agriculture ?
Jacquemart, Anne-Laure; Dendoncker, Nicolas; Dufrêne, Marc ULg et al

Article for general public (2014)

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See detailDo Photobiont Switch and Cephalodia Emancipation Act as Evolutionary Drivers in the Lichen Symbiosis? A Case Study in the Pannariaceae (Peltigerales)
Magain, Nicolas ULg; Sérusiaux, Emmanuël ULg

in PLoS ONE (2014), 9(2), 89876

Lichen symbioses in the Pannariaceae associate an ascomycete and either cyanobacteria alone (usually Nostoc; bipartite thalli) or green algae and cyanobacteria (cyanobacteria being located in dedicated ... [more ▼]

Lichen symbioses in the Pannariaceae associate an ascomycete and either cyanobacteria alone (usually Nostoc; bipartite thalli) or green algae and cyanobacteria (cyanobacteria being located in dedicated structures called cephalodia; tripartite thalli) as photosynthetic partners (photobionts). In bipartite thalli, cyanobacteria can either be restricted to a well-delimited layer within the thallus (‘pannarioid’ thalli) or spread over the thallus that becomes gelatinous when wet (‘collematoid’ thalli). We studied the collematoid genera Kroswia and Physma and an undescribed tripartite species along with representatives of the pannarioid genera Fuscopannaria, Pannaria and Parmeliella. Molecular inferences from 4 loci for the fungus and 1 locus for the photobiont and statistical analyses within a phylogenetic framework support the following: (a) several switches from pannarioid to collematoid thalli occured and are correlated with photobiont switches; the collematoid genus Kroswia is nested within the pannarioid genus Fuscopannaria and the collematoid genus Physma is sister to the pannarioid Parmeliella mariana group; (b) Nostoc associated with collematoid thalli in the Pannariaceae are related to that of the Collemataceae (which contains only collematoid thalli), and never associated with pannarioid thalli; Nostoc associated with pannarioid thalli also associate in other families with similar morphology; (c) ancestors of several lineages in the Pannariaceae developed tripartite thalli, bipartite thalli probably resulting from cephalodia emancipation from tripartite thalli which eventually evolved and diverged, as suggested by the same Nostoc present in the collematoid genus Physma and in the cephalodia of a closely related tripartite species; Photobiont switches and cephalodia emancipation followed by divergence are thus suspected to act as evolutionary drivers in the family Pannariaceae. [less ▲]

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See detailA multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families
Miadlikowska, Jolanta; Kauff, Frank; Högnabba, Filip et al

in Molecular Phylogenetics & Evolution (2014), 79

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See detailLichen-symbiotic cyanobacteria associated with Peltigera have an alternative vanadium-dependent nitrogen fixation-system
Hodkinson, Brendan P.; Allen, Jessica L.; Forrest, Laura L. et al

in European Journal of Phycology (2014), 49

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See detailUnveiling a surprising diversity in the lichen genus Micarea (Pilocarpaceae) in Réunion (Mascarenes archipelago, Indian Ocean)
Brand, A. Maarten; van den Boom, Pieter P.G.; Sérusiaux, Emmanuël ULg

in Lichenologist (2014), 46

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See detailIsalonactis, a new genus of Roccellaceae (Arthoniales) from southern Madagascar
Ertz, Damien; Tehler, Anders; Fischer, Eberhard et al

in Lichenologist (2014), 46

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See detailDynamiques écosystémiques co-évolutives : portance écologique du territoire wallon
Hendrickx, Sébastien ULg; Van Der Kaa, Claire ULg; Sérusiaux, Emmanuël ULg

in Notes de recherche - Conférence Permanente du Développement Territorial Région Wallonne (2013), 44

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See detailDynamiques écosystémiques co-évolutives : cartographie des climax potentiels
Hendrickx, Sébastien ULg; Van Der Kaa, Claire ULg; Dopagne, Claude ULg et al

in Notes de recherche - Conférence Permanente du Développement Territorial Région Wallonne (2013), 37

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See detailSavoronala, a new genus of Malmideaceae (Lecanorales) from Madagascar with stipes producing sporodochia
Ertz, Damien; Fischer, Eberhard; Killmann, Dorothee et al

in Mycological Progress (2013), 12

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See detailLa nature: ce choix que l'on veut dissimuler
Sérusiaux, Emmanuël ULg

in Meerts, Pierre (Ed.) Vers une nouvelle synthèse écologique. De l'écologie scientifique au développement durable (2013)

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See detailLecania falcata, a new species from Spain, the Canary Islands and the Azores, close to Lecania chlorotiza
Sérusiaux, Emmanuël ULg; van den Boom, Pieter P. G.; Brand, Maarten A. et al

in Lichenologist (2012), 44(05), 577-590

Lecania chlorotiza and L. falcata, described here as new from Spain/Navarra, the Canary Islands and the Azores, do not belong to Lecania s. str. They belong to a strongly supported clade comprising ... [more ▼]

Lecania chlorotiza and L. falcata, described here as new from Spain/Navarra, the Canary Islands and the Azores, do not belong to Lecania s. str. They belong to a strongly supported clade comprising Bacidia, Bacidina, Scutula and Toninia when examined with maximum parsimony, maximum likelihood and Bayesian inferences using mtSSU, nuLSU and nuITS sequences. This clade represents the Bacidiaceae and is included in the Ramalinaceae s. lat. Most genera included in that family need further work before a new genus can possibly be described for Lecania chlorotiza and L. falcata. [less ▲]

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See detailA further new species in the lichen genus Arctomia: A. borbonica from Reunion (Mascarene archipelago)
Magain, Nicolas ULg; Sérusiaux, Emmanuël ULg

in MycoKeys (2012), 4

Arctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion in the Mascarene archipelago (Indian Ocean). It has a sterile, foliose, usually wrinkled ... [more ▼]

Arctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion in the Mascarene archipelago (Indian Ocean). It has a sterile, foliose, usually wrinkled, thallus whose margins produce goniocysts that disintegrate into a soredioid margin; it looks like a Leptogium species. Its phylogenetic position in the Arctomiaceae (Ostropomycetidae, Ascomycota) has been determined with 3 genes (nuLSU, mtSSU, RPB1) inferences. [less ▲]

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See detailDynamiques écosystémiques co-évolutives: proposition de typologie fonctionnelle des milieux
Hendrickx, Sébastien ULg; Van Der Kaa, Claire ULg; Dopagne, Claude ULg et al

in Notes de recherche - Conférence Permanente du Développement Territorial Région Wallonne (2012), 34

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See detailMultilocus-based phylogeny and species recognition within the cosmopolitan Peltigera neopolydactyla-dolichorhiza complex
Magain, Nicolas ULg; Miadlikowska, Jolanta; Lutzoni, François et al

Poster (2012, January)

The Peltigera neopolydactyla/dolichorhiza complex is broadly distributed, growing in boreal and temperate regions from northern Norway to southern Chile, as well as in tropical mountains. Observed ... [more ▼]

The Peltigera neopolydactyla/dolichorhiza complex is broadly distributed, growing in boreal and temperate regions from northern Norway to southern Chile, as well as in tropical mountains. Observed morphotype and chemotype variation within this complex suggested the presence of multiple undescribed species. We inferred the phylogeny of Peltigera section Polydactylon with a special focus on the Peltigera neopolydactyla/dolichorhiza complex to determine the full breadth of this species complex, and to assess if taxa from different parts of the worlds but with similar morphological features share a most recent common ancestor. About 525 ITS sequences representing 104 distinct haplotypes were generated for representatives of Peltigera section Polydactylon. We selected a representative of each broadly defined phylotype for which three protein-coding loci: RPB1.1, b-tubulin and EFT2.1 were sequenced. Each of the three protein coding loci provided equivalent or more resolution and support than the ITS locus. The greatest proportion of significantly supported nodes across the tree resulted from β-tubulin alone. Many specimens identified as P. neopolydactyla and P. dolichorhiza are placed outside of this species complex. As currently defined both species represent polyphyletic assemblages of taxa including several potentially undescribed species. Our phylogenies suggest the presence of putatively new species within several complexes across the section. [less ▲]

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