The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Annemieke Verbeken - One of the best experts on this subject based on the ideXlab platform.
-
recent insights in the phylogeny species diversity and culinary uses of milkcap genera Lactarius and lactifluus
Mushrooms Humans and Nature in a Changing World, 2020Co-Authors: Jorinde Nuytinck, Annemieke Verbeken, Eske De Crop, Lynn Delgat, Quinten Bafort, Mauro Rivas Ferreiro, Xianghua WangAbstract:Milkcaps form a diverse group of widely consumed ectomycorrhizal fungi. Despite their popularity and ubiquity, large gaps still exist in our knowledge of the milkcap genera. This paper summarizes our current state of knowledge of both Lactarius and Lactifluus. Lacunas in our knowledge are indicated, and an overview of their culinary uses is given.
-
Taxonomic revision of the genus Lactarius (Russulales, Basidiomycota) in Korea
Fungal Diversity, 2019Co-Authors: Hyun Lee, Annemieke Verbeken, Komsit Wissitrassameewong, Myung Soo Park, John Eimes, Young Woon LimAbstract:The genus Lactarius Pers. (Russulales) is a cosmopolitan group of Basidiomycota that forms ectomycorrhizal relationships primarily with both deciduous and coniferous trees. Although the genus has been well-studied in Europe and North America, only fragmentary researches have been carried out on Asian species. In particular, the distribution of Lactarius species in South Korea is poorly understood due to insufficient morphological descriptions and a lack of DNA sequence data. In addition, the misuse of European and North American names has added to confusion regarding the taxonomy of Asian Lactarius species. In this study, the diversity of Lactarius in South Korea was evaluated by employing both morphological and phylogenetic approaches. A multi-locus phylogenetic analysis of 729 Lactarius specimens collected between 1960 and 2017 was performed using the internal transcribed spacer (ITS) region, partial nuclear ribosomal large subunit (nrLSU), partial second largest subunit of RNA polymerase II ( rpb2 ), and minichromosome maintenance complex component 7 ( mcm7 ). 49 Lactarius species were identified in three Lactarius subgenera: L. subg. Russularia (17 spp.), L. subg. Lactarius (22 spp.), and L. subg. Plinthogalus (10 spp.). Among them, 28 Lactarius species were identified as new to science, while just 17 were previously described Lactarius species. Four of the taxa remain un-named due to paucity of materials. A key to Korean Lactarius species, molecular phylogenies, a summary of diversity, and detailed description are provided.
-
Lactarius subgenus russularia russulaceae in south east asia 3 new diversity in thailand and vietnam
Phytotaxa, 2015Co-Authors: Komsit Wisitrassameewong, Jorinde Nuytinck, Felix Hampe, Kevin D Hyde, Eske De Crop, Annemieke VerbekenAbstract:Lactarius subgenus Russularia is a dominant group of milkcaps in Southeast Asia. This paper reveals the large diversity of the subgenus, with eight new species and one known species being described from montane evergreen and coniferous forests. All new species are supported by both morphological and molecular data, the latter using Maximum likelihood and Bayesian analysis based on the ITS region. Complete macro- and micro-morphological descriptions and illustrations are given. A key to the new taxa is provided. Lactarius chichuensis is reported for the first time from Thailand.
-
Lactarius cucurbitoides russulales basidiomycota a new species from south korea supported by molecular and morphological data
Phytotaxa, 2015Co-Authors: Hyun Min Lee, Annemieke Verbeken, Myung Soo Park, Paul Jung, Jonathan J Fong, Young Woon LimAbstract:A new species belonging to Lactarius subg. Plinthogalus was discovered during a long-term project on the diversity of Korean Lactarius . This species is proposed here as Lactarius cucurbitoides . The status of L. cucurbitoides as a new species is supported by molecular data and morphological features. Phylogenetic analysis based on internal transcribed spacer (ITS) sequences shows that L. cucurbitoides is closely related to L. subplinthogalus , L. friabilis, and L. oomsisiensis , with pairwise distances of 2.8–4.3%. Morphological characters of L. cucurbito ides that distinguish it from these closely related species are a pale yellow to pale orange colored pileus and non-discoloration of white latex. The new species is described and illustrated in the present paper.
-
a new angiocarpous Lactarius species from thailand
Phytotaxa, 2014Co-Authors: Annemieke Verbeken, Ursula Eberhardt, Komsit Wissitrassameewong, Felix Hampe, Kevin D Hyde, Jorinde NuytinckAbstract:Lactarius bisporus sp. nov. is described from primary tropical forest in Thailand. Morphological characters and DNA sequence data are given. Comparisons with the closely related angiocarpous taxon Lactarius pomiolens are provided.
Jorinde Nuytinck - One of the best experts on this subject based on the ideXlab platform.
-
recent insights in the phylogeny species diversity and culinary uses of milkcap genera Lactarius and lactifluus
Mushrooms Humans and Nature in a Changing World, 2020Co-Authors: Jorinde Nuytinck, Annemieke Verbeken, Eske De Crop, Lynn Delgat, Quinten Bafort, Mauro Rivas Ferreiro, Xianghua WangAbstract:Milkcaps form a diverse group of widely consumed ectomycorrhizal fungi. Despite their popularity and ubiquity, large gaps still exist in our knowledge of the milkcap genera. This paper summarizes our current state of knowledge of both Lactarius and Lactifluus. Lacunas in our knowledge are indicated, and an overview of their culinary uses is given.
-
Lactarius subgenus russularia russulaceae in south east asia 3 new diversity in thailand and vietnam
Phytotaxa, 2015Co-Authors: Komsit Wisitrassameewong, Jorinde Nuytinck, Felix Hampe, Kevin D Hyde, Eske De Crop, Annemieke VerbekenAbstract:Lactarius subgenus Russularia is a dominant group of milkcaps in Southeast Asia. This paper reveals the large diversity of the subgenus, with eight new species and one known species being described from montane evergreen and coniferous forests. All new species are supported by both morphological and molecular data, the latter using Maximum likelihood and Bayesian analysis based on the ITS region. Complete macro- and micro-morphological descriptions and illustrations are given. A key to the new taxa is provided. Lactarius chichuensis is reported for the first time from Thailand.
-
a new angiocarpous Lactarius species from thailand
Phytotaxa, 2014Co-Authors: Annemieke Verbeken, Ursula Eberhardt, Komsit Wissitrassameewong, Felix Hampe, Kevin D Hyde, Jorinde NuytinckAbstract:Lactarius bisporus sp. nov. is described from primary tropical forest in Thailand. Morphological characters and DNA sequence data are given. Comparisons with the closely related angiocarpous taxon Lactarius pomiolens are provided.
-
a new species of Lactarius sect deliciosi russulales basidiomycota from western north america
Botany, 2014Co-Authors: Jorinde Nuytinck, Joseph F AmmiratiAbstract:Although Lactarius sect. Deliciosi (Fr.) Redeuilh, Verbeken & Walleyn (syn. Lactarius sect. Dapetes) is a readily identifiable group in the field, it is exceedingly difficult to correctly identify species with orange to reddish orange latex. A lack of careful study of these species in North America in general, and the Pacific Northwest more specifically, makes species identification often impossible. One common undescribed Pacific Northwest species, which begins fruiting rather early in the season, is described here as Lactarius aestivus sp. nov. It is found in conifer forests dominated by Abies Mill. and Tsuga Carriere, and is characterized by bright orange latex and zonate, bright to pale orange pileus that only rarely stains greenish. A phylogenetic analysis based on ITS sequences supports the species delimitation.
-
Lactarius subgenus russularia russulaceae in southeast asia 1 species with very distant gills
Phytotaxa, 2014Co-Authors: Komsit Wisitrassameewong, Jorinde Nuytinck, Kevin D Hyde, Annemieke VerbekenAbstract:This article introduces four new species of Lactarius subgenus Russularia from Southeast Asia with descriptions and illustrations of macromorphological and microscopic characters. Lactarius laccarioides and L. sublaccarioides were discovered in Northern Thailand, and L. pasohensis and L. stubbei in Malaysia. These four species share some striking macroscopic features that are unique in the subgenus: distant gills and a very thin-fleshed and deeply striate to sulcate pileus, which gives them the aspect of Laccaria species in the field. Molecular analysis of the ITS gene region shows that these four species are not as closely related within Lactarius subgenus Russularia as their similar appearance in the field would suggest.
Dirk Stubbe - One of the best experts on this subject based on the ideXlab platform.
-
Lactarius subgenus russularia basidiomycota russulales novel asian species worldwide phylogeny and evolutionary relationships
Fungal Biology, 2016Co-Authors: Ursula Eberhardt, Komsit Wisitrassameewong, Eske De Crop, Brian P Looney, Huyen Thanh Le, Kobeke Van De Putte, Guo Jiayu, Dirk StubbeAbstract:Lactarius subg. Russularia is a large group of milkcaps occurring almost worldwide and dominant in many ecosystems. In this study we focus on new diversity, evolutionary relationships, divergence time, and origin of the subgenus. Six conifer symbionts are described as new to science: Lactarius atrii, L. aurantionitidus, L. dombangensis, L. flavigalactus, L. lachungensis, and L. sikkimensis. Species delimitation is assessed based on the concordance between morphological characteristics and an ITS phylogeny. Infrageneric relationships were studied using a phylogeny constructed from concatenated ITS-rpb2 data using Maximum Likelihood and Bayesian inference. Results show that species in this subgenus do not cluster together according to their geographic origin. Intercontinental sister relationships between Europe/Asia/North America are common but actual conspecificity is rare. This result suggests that allopatric speciation has played an important role within this subgenus. Only few morphological characteristics tend to be phylogenetically informative, with the most important being presence or absence of true cystidia and the pileipellis structure. Two datasets were generated in order to estimate the age of L. subg. Russularia. The results suggest the origin of L. subg. Russularia to be in the Mid Miocene period.
-
Lactarius subg plinthogalus the european taxa and american varieties of l lignyotus re evaluated
Mycologia, 2012Co-Authors: Dirk Stubbe, Annemieke VerbekenAbstract:The European species Lactarius subg. Plinthogalus were subjected to a molecular phylogenetic analysis based on ITS, LSU and rpb2 sequences. Morphological characters of the species are discussed in the light of the phylogenetic results. In addition to a broad sampling within Europe, some Asian and North American taxa also were included in the analysis. Eight European species are confirmed molecularly: L. lignyotus, L. acris, L. azonites, L. pterosporus, L. ruginosus, L. romagnesii, L. fuliginosus and L. picinus. Except the sibling species L. fuliginosus and L. picinus, all are morphologically distinct. Our results suggest that L. fuliginosus is associated exclusively with broadleaf trees and L. picinus with conifers, but this putative difference in host specificity needs to be investigated further. Lactarius subruginosus turns out to be a synonym of either L. pterosporus or L. ruginosus. The position of Lactarius terenopus remains to be clarified. The North American taxa that are closely related to the European L. lignyotus (L. fallax, L. lignyotus var. canadensis, var. nigroviolascens, var. marginatus) are not resolved. Intercontinental conspecificity was demonstrated between Europe and northern Asia but was not found between Europe and southern Asia or between Europe and North America. A taxonomic subdivision of L. subg. Plinthogalus based on the height of the spore ornamentation should be rejected.
-
the australasian species of Lactarius subgenus gerardii russulales
Fungal Diversity, 2012Co-Authors: Dirk Stubbe, Jorinde Nuytinck, Xianghua Wang, Kobeke Van De Putte, Annemieke VerbekenAbstract:This paper provides an overview and identification key of the Australasian species of Lactarius subg. Gerardii. A molecular phylogeny based on the nuc DNA markers ITS, LSU and rpb2, combined with detailed morphological observations resulted in the delimitation of 12 strongly supported and morphologically recognizable species. Five new agaricoid species are described here: Lactarius hora, L. coniculus, L. limbatus, L. leae and L. leonardii. Other agaricoid species belonging to subg. Gerardii are L. atrovelutinus, L. bicolor, L. ochrogalactus and L. reticulatovenosus. Lactarius venosus is also considered as a member but could not be included in the molecular analysis. Two new pleurotoid species are discovered: L. genevievae and L. conchatulus, both close relatives of L. uyedae, but each with distinct characters. Their position within subg. Gerardii is supported in the phylogeny and by their microscopic characters. This study also confirms the existence of multiple cryptic species and species complexes for which species recognition or species delimitation remains problematic as is the case for the Australian species L. wirrabara. In general, detailed macroscopic and microscopic observations are needed to identify species of L. subg. Gerardii.
-
critical assessment of the Lactarius gerardii species complex russulales
Fungal Biology, 2010Co-Authors: Dirk Stubbe, Jorinde Nuytinck, Annemieke VerbekenAbstract:This paper investigates species delimitation within the Lactarius gerardii species complex and explores its taxonomic and geographical extent. A combined molecular phylogeny based on ITS, LSU and rpb2 gene sequences is constructed and morphological characters are evaluated. While L. gerardii was originally described from North America, it has later been reported from all over Asia. Therefore a worldwide sampling range was aimed at, including species exhibiting morphological affinities with L. gerardii. The phylogenetic analyses indicate that intercontinental conspecificity in L. gerardii is absent. Thirty strongly supported clades are retrieved of which 18 are morphologically identifiable species. The group is elevated to Lactarius subg. Gerardii stat. nov. It includes, apart from L. gerardii s.l., L. atrovelutinus, L. bicolor, L. ochrogalactus, L. petersenii, L. reticulatovenosus, L. sepiaceus, L. subgerardii and L. wirrabara, as well as the pleurotoid L. uyedae. The paraphyletic nature of the genus Lactarius is confirmed. Lactarius subg. Gerardii appears not affiliated with L. subg. Plinthogalus and this can be substantiated morphologically. No representatives are known from Europe, Africa or South America. The high frequency of intercontinental sister relationships observed between America, Asia and the Australian region, suggests multiple migration and speciation events have occurred across continents.
-
Lactarius subgenus plinthogalus of malaysia
Fungal Diversity, 2008Co-Authors: Dirk Stubbe, Jorinde Nuytinck, Annemieke VerbekenAbstract:An overview and key of the Malaysian species of Lactarius subgenus Plinthogalus are given. Three species with strikingly blue colour changes were described before. Eight new species (not blueing) are proposed and fully described and illustrated: L. cinereobrunneus, L cretaceus, L. flavorosescens, L. ferrugineifolius, L. fulvus, L. pallidior, L. papillatus and L. verecundus. Loctarius ochrogalactus Hashiya is for the first time reported in Malaysia. A species, probably identical with L. sublignyotus Henn., is also included. The presence of phaeobasidia, never mentioned before in Lactarius, is illustrated here in Lactarius fulvus.
Ursula Eberhardt - One of the best experts on this subject based on the ideXlab platform.
-
Lactarius subgenus russularia basidiomycota russulales novel asian species worldwide phylogeny and evolutionary relationships
Fungal Biology, 2016Co-Authors: Ursula Eberhardt, Komsit Wisitrassameewong, Eske De Crop, Brian P Looney, Huyen Thanh Le, Kobeke Van De Putte, Guo Jiayu, Dirk StubbeAbstract:Lactarius subg. Russularia is a large group of milkcaps occurring almost worldwide and dominant in many ecosystems. In this study we focus on new diversity, evolutionary relationships, divergence time, and origin of the subgenus. Six conifer symbionts are described as new to science: Lactarius atrii, L. aurantionitidus, L. dombangensis, L. flavigalactus, L. lachungensis, and L. sikkimensis. Species delimitation is assessed based on the concordance between morphological characteristics and an ITS phylogeny. Infrageneric relationships were studied using a phylogeny constructed from concatenated ITS-rpb2 data using Maximum Likelihood and Bayesian inference. Results show that species in this subgenus do not cluster together according to their geographic origin. Intercontinental sister relationships between Europe/Asia/North America are common but actual conspecificity is rare. This result suggests that allopatric speciation has played an important role within this subgenus. Only few morphological characteristics tend to be phylogenetically informative, with the most important being presence or absence of true cystidia and the pileipellis structure. Two datasets were generated in order to estimate the age of L. subg. Russularia. The results suggest the origin of L. subg. Russularia to be in the Mid Miocene period.
-
a new angiocarpous Lactarius species from thailand
Phytotaxa, 2014Co-Authors: Annemieke Verbeken, Ursula Eberhardt, Komsit Wissitrassameewong, Felix Hampe, Kevin D Hyde, Jorinde NuytinckAbstract:Lactarius bisporus sp. nov. is described from primary tropical forest in Thailand. Morphological characters and DNA sequence data are given. Comparisons with the closely related angiocarpous taxon Lactarius pomiolens are provided.
-
sequestrate Lactarius species from tropical africa l angiocarpus sp nov and l dolichocaulis comb nov
Fungal Biology, 2004Co-Authors: Ursula Eberhardt, Annemieke VerbekenAbstract:Lactarius angiocarpus sp. nov. is described from miombo woodlands in Zambia. It is the third sequestrate representative of the Russulaceae described from tropical Africa. Morphological characters and DNA sequence data support its placement in Lactarius subgen. Plinthogali. Molecular kinship analyses confirm a multiple origin of sequestrate Russulaceae spp. As none of the previously sequenced sequestrate Russulaceae spp. has been assigned to the Plinthogali clade, the placement of L. angiocarpus indicates an additional point of origin of derivative sporocarp types within the Russulaceae. Within the same subgenus, another tropical African sequestrate species, L. dolichocaulis comb. nov. (syn. Arcangeliella dolichocaulis) is recognized.
-
Molecular kinship analyses of the agaricoid Russulaceae: Correspondence with mycorrhizal anatomy and sporocarp features in the genus Russula
Mycological Progress, 2002Co-Authors: Ursula EberhardtAbstract:A data set of LSU DNA sequences of mainly European Russula and Lactarius species was subjected to molecular phylogenetic analysis. Species could be allocated to six clades, with an unresolved phylogeny. One of these clades represents the genus Lactarius . The only analysed species of the section Archaeinae ( Russula ) was placed basal to both genera. Thus Lactarius appears to be derived from Russula. Russula was divided into four clusters, corresponding to the sections Plorantinae and Nigricantinae , subgenus Heterophyllidia including the section Foetentinae , and a cluster representing the remaining subgenera of the “Genuinae”. Even though the resulting groups can be considered as valid classificatory groups, species associations resulting from molecular analyses neither support the division of Russula into the subgenus Compacta (including the sections Nigricantinae, Plorantinae , and Archaeinae ) and the “Genuinae” (including all remaining taxa), nor do they support previously proposed evolutionary lineages within the “Genuinae”. Ribosomal ITS DNA sequences of Russula species were analysed to achieve better infrageneric resolution. The results are discussed in relation to current classification systems and to what is known about the mycorrhizae formed by Russula species. While the systematic value attached to many macroscopic and microscopic sporocarp features was not supported by sequence data, mycorrhizal anatomy is in good correspondence with many of the results from the phylogenetic analysis.
-
Lactarius ectomycorrhizae on abies alba morphological description molecular characterization and taxonomic remarks
Mycologia, 2000Co-Authors: Ursula Eberhardt, Annemieke Verbeken, Andrea Rinaldi, Giovanni Pacioni, Franz Oberwinkler, Ornella ComandiniAbstract:To date, the ectomycorrhizae formed by silver fir (Abies alba), an ecologically valuable and in- digenous tree species in many European mountain forests, have been poorly investigated. We character- ized the mycorrhizae formed by three Lactarius spe- cies (Lac. subsericatus, Lac. intermedius, Lac. salmon- icolor) on silver fir, on the basis of material originat- ing from central Italy. The identification of the fun- gal symbiont was achieved by means of morphoanatomical observations of mycorrhizae, and by comparison of ITS sequences obtained from my- corrhizae and sporocarps of putative fungal partners. Sequences also were obtained from specimens of the same species but from different geographic origin or from closely related Lactarius species. A maximum likelihood analysis of the data was performed. On the whole, the resultant tree is in good agreement with sporocarp and mycorrhiza morphology. RFLP pat- terns were calculated from sequence data. A discus- sion on the main morphoanatomical characters dis- tinguishing the Lactarius ectomycorrhizae reported in this study from those already described belonging to related species, is also included. The accuracy of different methods to identify mycorrhizae formed by closely related Lactarius species on silver fir, are dis-
Komsit Wisitrassameewong - One of the best experts on this subject based on the ideXlab platform.
-
first report of eight milkcap species belonging to Lactarius and lactifluus in korea
Mycobiology, 2018Co-Authors: Hyun Min Lee, Myung Soo Park, Komsit Wisitrassameewong, Jae Young Park, Min Ji Kim, Nam Kyu Kim, Jong Kyu Lee, Young Woon LimAbstract:Lactarius and Lactifluus are milkcaps that are characterized by the secretion of latex. These two genera are part of a globally distributed cosmopolitan group of ectomycorrhizal fungi that is an im...
-
Lactarius subgenus russularia basidiomycota russulales novel asian species worldwide phylogeny and evolutionary relationships
Fungal Biology, 2016Co-Authors: Ursula Eberhardt, Komsit Wisitrassameewong, Eske De Crop, Brian P Looney, Huyen Thanh Le, Kobeke Van De Putte, Guo Jiayu, Dirk StubbeAbstract:Lactarius subg. Russularia is a large group of milkcaps occurring almost worldwide and dominant in many ecosystems. In this study we focus on new diversity, evolutionary relationships, divergence time, and origin of the subgenus. Six conifer symbionts are described as new to science: Lactarius atrii, L. aurantionitidus, L. dombangensis, L. flavigalactus, L. lachungensis, and L. sikkimensis. Species delimitation is assessed based on the concordance between morphological characteristics and an ITS phylogeny. Infrageneric relationships were studied using a phylogeny constructed from concatenated ITS-rpb2 data using Maximum Likelihood and Bayesian inference. Results show that species in this subgenus do not cluster together according to their geographic origin. Intercontinental sister relationships between Europe/Asia/North America are common but actual conspecificity is rare. This result suggests that allopatric speciation has played an important role within this subgenus. Only few morphological characteristics tend to be phylogenetically informative, with the most important being presence or absence of true cystidia and the pileipellis structure. Two datasets were generated in order to estimate the age of L. subg. Russularia. The results suggest the origin of L. subg. Russularia to be in the Mid Miocene period.
-
Lactarius subgenus russularia russulaceae in south east asia 3 new diversity in thailand and vietnam
Phytotaxa, 2015Co-Authors: Komsit Wisitrassameewong, Jorinde Nuytinck, Felix Hampe, Kevin D Hyde, Eske De Crop, Annemieke VerbekenAbstract:Lactarius subgenus Russularia is a dominant group of milkcaps in Southeast Asia. This paper reveals the large diversity of the subgenus, with eight new species and one known species being described from montane evergreen and coniferous forests. All new species are supported by both morphological and molecular data, the latter using Maximum likelihood and Bayesian analysis based on the ITS region. Complete macro- and micro-morphological descriptions and illustrations are given. A key to the new taxa is provided. Lactarius chichuensis is reported for the first time from Thailand.
-
Lactarius subgenus russularia russulaceae in southeast asia 1 species with very distant gills
Phytotaxa, 2014Co-Authors: Komsit Wisitrassameewong, Jorinde Nuytinck, Kevin D Hyde, Annemieke VerbekenAbstract:This article introduces four new species of Lactarius subgenus Russularia from Southeast Asia with descriptions and illustrations of macromorphological and microscopic characters. Lactarius laccarioides and L. sublaccarioides were discovered in Northern Thailand, and L. pasohensis and L. stubbei in Malaysia. These four species share some striking macroscopic features that are unique in the subgenus: distant gills and a very thin-fleshed and deeply striate to sulcate pileus, which gives them the aspect of Laccaria species in the field. Molecular analysis of the ITS gene region shows that these four species are not as closely related within Lactarius subgenus Russularia as their similar appearance in the field would suggest.
