Fig 1
-maximum likelihood phylogeny (-lnl = 2892.31521) of the three new Ijuhya species, inferred by Phyml 3.0, model hKy85 from a 892 bp matrix of 28S rRna sequence, rooted with Clonostachys rosea.
Source publication
Three new species of Ijuhya are described and illustrated, based on material collected in metropolitan France, French guiana and Spain. Based on morphological and phylogenetic comparison with the known Ijuhya species as well as the related genera Lasionectria and Lasionectriella, we propose I. salviicola, I. saulensis, and I. somiedoensis as new sp...
Contexts in source publication
Context 1
... with species having fasciculate hairs (subclade 1), the other with those lacking fasciculate hairs (subclade 2). This hypothesis is supported by the inclusion of the three new species, two of them with fasciculate hairs, I. salviicola and I. saulensis, clustering with species in subclade 1, while I. somiedoensis shows affinities with subclade 2 (Fig. 1). it is interesting to note that in this subclade, I. lilliputiana and I. somiedoensis, in correlation with their deviating morphology of ascomatal apex, appear distantly related to I. pachydisca and I. tetraspora, the two species with sharply delimited apical disc. however, this segregation of two morphological types in two subclades ...
Context 2
... two subclades is contradicted by the placement of I. paraparilis, a species with a glabrous disc, in the subclade with species having fasciculate hairs. congruent results were obtained by aShRaFi et al. (2017) with a lSu sequence from a specimen of I. paraparilis from china and in the present study with a lSu sequence from a specimen from Japan (Fig. ...
Context 3
... three new species we propose herein are shown by phylogenetic analysis to belong to Ijuhya (Fig. 1) and conform well to the morphological definition of Ijuhya given above. morphologically, the closest species to I. salviicola is I. peristomialis, the type species, which likewise has long-fusiform, striate ascospores in the same size range, but differs in having longer fascicles of hairs up to 300 µm long and ascospores ...
Context 4
... is I. peristomialis, the type species, which likewise has long-fusiform, striate ascospores in the same size range, but differs in having longer fascicles of hairs up to 300 µm long and ascospores (1-)5-7(-11)-septate. in our phylogenetic analysis, I. salviicola is distant from I. peristomialis and is nested on a sister branch to I. faveliana (Fig. 1). The latter, known from French guiana on palm leaves, differs from I. salviicola in having shorter ascospores 15-17 × 3-3.5 µm (lechaT & FouRnieR, 2017a) and only 96% similarity of their lSu ...
Context 5
... have cyanophilous rounded tips, which sets it apart from all known species in the genus. We failed to elucidate unambiguously the nature of these structures but we assume that they result from a local loosening or thickening of the striate perispore ( Fig. 3-d) more than from the presence of cellular or non-cellular appendages. in our phylogram (Fig. 1), I. saulensis is nested on a sister branch to I. fournieri, a palm-inhabiting species known from French guiana, which resembles I. saulensis in ascomatal and ascospore but differs in having significantly smaller ascospores 22-23.5(-25) × 4.5-5 µm that lack cyanophilous tips. Both species display 98% similarity of lSu sequences, which ...
Context 6
... had been recognized as I. boothii (d. hawksw.) lechat & J. Fourn. (2017b). accordingly, the new combination Lasionectria boothii (d. hawksw.) lechat & J. Fourn. comb. nov. is proposed to accommodate the basionym Nectria boothii hawksworth (1980). Finally, based on morphological characteristics and phylogenetic analysis of its lSu sequence (Fig. 1), Lasionectria lecanodes is re-instated to accommodate the basionym Sphaeria ...
Context 7
... with species having fasciculate hairs (subclade 1), the other with those lacking fasciculate hairs (subclade 2). This hypothesis is supported by the inclusion of the three new species, two of them with fasciculate hairs, I. salviicola and I. saulensis, clustering with species in subclade 1, while I. somiedoensis shows affinities with subclade 2 (Fig. 1). it is interesting to note that in this subclade, I. lilliputiana and I. somiedoensis, in correlation with their deviating morphology of ascomatal apex, appear distantly related to I. pachydisca and I. tetraspora, the two species with sharply delimited apical disc. however, this segregation of two morphological types in two subclades ...
Context 8
... two subclades is contradicted by the placement of I. paraparilis, a species with a glabrous disc, in the subclade with species having fasciculate hairs. congruent results were obtained by aShRaFi et al. (2017) with a lSu sequence from a specimen of I. paraparilis from china and in the present study with a lSu sequence from a specimen from Japan (Fig. ...
Context 9
... three new species we propose herein are shown by phylogenetic analysis to belong to Ijuhya (Fig. 1) and conform well to the morphological definition of Ijuhya given above. morphologically, the closest species to I. salviicola is I. peristomialis, the type species, which likewise has long-fusiform, striate ascospores in the same size range, but differs in having longer fascicles of hairs up to 300 µm long and ascospores ...
Context 10
... is I. peristomialis, the type species, which likewise has long-fusiform, striate ascospores in the same size range, but differs in having longer fascicles of hairs up to 300 µm long and ascospores (1-)5-7(-11)-septate. in our phylogenetic analysis, I. salviicola is distant from I. peristomialis and is nested on a sister branch to I. faveliana (Fig. 1). The latter, known from French guiana on palm leaves, differs from I. salviicola in having shorter ascospores 15-17 × 3-3.5 µm (lechaT & FouRnieR, 2017a) and only 96% similarity of their lSu ...
Context 11
... have cyanophilous rounded tips, which sets it apart from all known species in the genus. We failed to elucidate unambiguously the nature of these structures but we assume that they result from a local loosening or thickening of the striate perispore ( Fig. 3-d) more than from the presence of cellular or non-cellular appendages. in our phylogram (Fig. 1), I. saulensis is nested on a sister branch to I. fournieri, a palm-inhabiting species known from French guiana, which resembles I. saulensis in ascomatal and ascospore but differs in having significantly smaller ascospores 22-23.5(-25) × 4.5-5 µm that lack cyanophilous tips. Both species display 98% similarity of lSu sequences, which ...
Context 12
... had been recognized as I. boothii (d. hawksw.) lechat & J. Fourn. (2017b). accordingly, the new combination Lasionectria boothii (d. hawksw.) lechat & J. Fourn. comb. nov. is proposed to accommodate the basionym Nectria boothii hawksworth (1980). Finally, based on morphological characteristics and phylogenetic analysis of its lSu sequence (Fig. 1), Lasionectria lecanodes is re-instated to accommodate the basionym Sphaeria ...
Similar publications
In recent decades, commercial Eucalyptus plantations have expanded toward the warm and humid regions of northern and northeastern Brazil, where Calonectria leaf blight (CLB) has become the primary fungal leaf disease of this crop. CLB can be caused by different Calonectria species, and previous studies have indicated that Calonectria might have hig...
In temperate regions of Europe, the large pine weevil, Hylobius abietis, is a major pest of coniferous forests mostly at sites where clear-felling is followed by planting of saplings. Control measures against this pest are based on silvicultural techniques, an application of physical barriers on stems of saplings and insecticide treatments. To avoi...
Five new polyketides, including two chromones (1–2), two phenyl derivatives (4–5), and a tandyukusin derivative (6), along with five known polyketides (3 and 7–10) were isolated from mangrove endophytic fungus Trichoderma lentiforme ML-P8-2. The planar structures of compounds were elucidated via detailed 1D, 2D NMR, and HR-ESI-MS analysis. ECD spec...
Recent collections of ten species of Thyronectria (Nectriaceae), found by the author mainly in the urban area of Olomouc and in the Černovírské Slatiniště riparian forest, are presented and briefly discussed. These comprise species growing on woody plants, both ornamental (T. berolinensis, T. lamyi, T. sinopica) and forest ones (T. abieticola, T. a...
Citations
... Within Bionectriaceae, Lasionectria is defined by hairy ascomata not changing colour in 3% koh or lactic acid, ascomatal wall of two regions, hairs arising from cells of ascomatal wall, convex apex, striate ascospores and an acremonium-like asexual morph (Lechat & FoURnIeR, 2019;RoSSman et al., 1999). Lasionectria saulensis fits well this definition, and our phylogenetic analyses of ItS and LSU sequences ( Fig. 1-2) comparing L. saulensis with known bionectriaceous species having an acremonium-like asexual morph, unambiguously place the new species in Lasionectria. ...
Lasionectria saulensis sp. nov. is described and illustrated based on a collection on dead leaves of Astrocaryum sp. (Arecaceae) in French Guiana. this species is placed in Lasionectria based on its acremo-nium-like asexual morph, ascomata not changing colour in 3% koh or lactic acid, and phylogenetic comparison of ItS and LSU sequences with known species of Lasionectria. Lasionectria saulensis is primarily characterised by non-stromatic, pale orange, subglobose, hairy ascomata with a conical apex, and striate ascospores. Based on comparison of morphological characteristics and molecular data with known Lasio-nectria species, L. saulensis is proposed as a new species. Résumé : Lasionectria saulensis sp. nov. est décrite et illustrée d'après une récolte effectuée sur feuille morte d'Astrocaryum sp. (Arecaceae) en Guyane française. cette espèce est placée dans le genre Lasionectria d'après sa forme asexuée de type Acremonium, les ascomes ne changeant pas de couleur dans koh à 3% ou dans l'acide lactique et la comparaison phylogénétique des séquences ItS et LSU avec les espèces connues de Lasionectria. Lasionectria saulensis se caractérise principalement par des ascomes dépourvus de stroma, orange pâle, subglobuleux, poilus, avec l'apex convexe et des ascospores striées. en se fondant sur la com-paraison des caractères morphologiques et des données moléculaires avec les espèces connues, L. saulensis est proposée comme une espèce nouvelle.
... In the continuity of an inventorial survey of fungi in French Guiana (GardIennet et al., 2019;Lechat et al., 2019;Lechat & FournIer, 2019a;2019b;2019c;2020a;2020b;2020c), an hypocrealean fungus was collected on dead palm leaves of Astrocaryum sp., which proved to be different from known species. this fungus was morphologically characterised, cultured and phylogenetically analysed. ...
a detailed description of Hydropisphaera palmicola sp. nov. is presented, based on a collection on dead leaves of Astrocaryum sp. (Arecaceae) in French Guiana. the acremonium-like asexual morph has been obtained in culture and sequenced. Its placement in the genus Hydropisphaera was confirmed by the analysis of Lsu sequences. Based on morphological and phylogenetic comparison with the known Hydro-pisphaera species, we propose H. palmicola as a new species. the similarity of our species with H. erubescens and H. foliicola is discussed. Résumé : une description détaillée d'Hydropisphaera palmicola sp. nov. est présentée à partir d'une récolte sur feuilles mortes d'Astrocaryum sp. (Arecaceae) en Guyane française. La forme asexuée de type acremo-nium a été obtenue en culture et séquencée. son placement dans le genre Hydropisphaera a été confirmé par l'analyse des séquences Lsu. sur la base d'une comparaison morphologique et phylogénétique avec les espèces d'Hydropisphaera connues, nous proposons H. palmicola comme une nouvelle espèce. La res-semblance de notre espèce avec H. erubescens et H. foliicola est commentée.
... The morphological observations of Nectria mantuana fit the description provided by Rossman et al. (1999). The molecular analysis of the holotype shows that Nectria mantuana is a distinct species of the genus Lasionectria (Fig. 1), sister to L. lecanodes, a lichenicolous species with minutely warted spores (Petch 1938, Sérusiaux et al. 1999, Lechat & Fournier 2019. In addition, the recovered ITS sequence from the holotype Nectria mantuana differs compared to the single Lasionectria mantuana ITS sequence deposited in GenBank (P%iv = 92.4 ...
Specimens of Nectria spp. and Nectriella rufofusca were obtained from the fungarium of Pier Andrea Saccardo, and investigated via a morphological and molecular approach based on MiSeq technology. ITS1 and ITS2 sequences were successfully obtained from 24 specimens identified as ‘ Nectria ’ sensu Saccardo (including 20 types) and from the type specimen of Nectriella rufofusca . For Nectria ambigua , N. radians and N. tjibodensis only the ITS1 sequence was recovered. On the basis of morphological and molecular analyses new nomenclatural combinations for Nectria albofimbriata , N. ambigua , N. ambigua var. pallens , N. granuligera , N. peziza subsp. reyesiana , N. radians , N. squamuligera , N. tjibodensis and new synonymies for N. congesta , N. flageoletiana , N. phyllostachydis , N. sordescens and N. tjibodensis var. crebrior are proposed. Furthermore, the current classification is confirmed for Nectria coronata , N. cyanostoma , N. dolichospora , N. illudens , N. leucotricha , N. mantuana , N. raripila and Nectriella rufofusca . This is the first time that these more than 100-yr-old specimens are subjected to molecular analysis, thereby providing important new DNA sequence data authentic for these names.
... In the continuity of our inventorial survey of fungi in Saül in French Guiana carried out in the context of the ABC project initiated by the Parc National Amazonien de Guyane (GArdIeNNet et al., 2019, LeChAt & FourNIer, 20182019a;2019b;2019c;LeChAt et al., 2019), two unknown bionectriaceous species were collected. Morphological characteristics of sexual-asexual morphs as well as phylogenetic analysis of LSu sequences revealed that they belong to Clonostachys Corda. ...
Clonostachys pilosella and C. pnagiana are described and illustrated as new species, based on collections from Saül in French Guiana. the asexual morphs of these fungi were obtained in culture and cultures were sequenced. the two new species are placed in Clonostachys, based on ascomata not changing colour in 3% koh or lactic acid, clonostachys-like asexual morphs and phylogenetic comparison of LSu sequences with 18 known Clonostachys species. Résumé : Clonostachys pilosella et C. pnagiana sont décrites et illustrées comme nouvelles espèces, fondées sur des récoltes faites à Saül en Guyane française. Les formes asexuées de ces champignons ont été obtenues en culture et les cultures ont été séquencées. Les deux espèces nouvelles sont placées dans le genre Clo-nostachys, fondées sur les ascomes ne changeant pas de couleur dans le koh à 3 % ou dans l'acide lactique, la forme asexuée de type clonostachys et la comparaison des séquences LSu avec 18 espèces connues de Clonostachys.
... An inventorial survey of fungi of Saül (French Guiana), initiated in 2018 by the Parc National Amazonien de Guyane (PNAG), lead to the discovery of several new species of Chaetopsina Rambelli (LechAt & FouRNieR, 2019c), Clonostachys corda (LechAt & FouRNieR, 2018;LechAt et al., 2019), Ijuhya Starbäck (LechAt & FouRNieR, 2019b) and Pleiocarpon L. Lombard & D. Aiello (LechAt & FouRNieR, 2019a). in continuation of this survey, a field trip took place over one week in June 2019 during which additional undescribed species were discovered. We present and document in the following a new species of Chaetopsina collected on bark of an unidentified liana. ...
A new species of Chaetopsina is described and illustrated from a collection in French Guiana. Based on morphological divergences of both sexual and asexual morphs from known Chaetopsina species as well as phylogenetic analyses of itS and LSu sequences, C. pnagiana is proposed as new species. A dichotomous key to holomorphic species of Chaetopsina is provided. Résumé : une nouvelle espèce de Chaetopsina est décrite et illustrée à partir de matériel récolté en Guyane française. en se fondant sur les différences morphologiques des stades sexué et asexué avec les espèces de Chaetopsina connues, ainsi que sur les analyses phylogénétiques des séquences itS et LSu, C. pnagiana est proposée comme espèce nouvelle. une clé dichotomique des espèces holomorphiques de Chaetopsina est proposée.
... In the continuity of our inventorial survey of fungi in Saül in French Guiana carried out in the context of the ABC project initiated by the Parc National Amazonien de Guyane (GArdIeNNet et al., 2019, LeChAt & FourNIer, 20182019a;2019b;2019c;LeChAt et al., 2019), two unknown bionectriaceous species were collected. Morphological characteristics of sexual-asexual morphs as well as phylogenetic analysis of LSu sequences revealed that they belong to Clonostachys Corda. ...
two new species of Chaetopsina are described and illustrated from specimens collected in French Guiana. Based on morphological divergences of both sexual and asexual morphs from known Chaetopsina species as well as phylogenetic analysis of itS and LSu sequences, C. guyanensis and C. saulensis are proposed as new species. in addition, two new combinations in Chaetopsina are proposed. Résumé : deux nouvelles espèces de Chaetopsina sont décrites et illustrées à partir de matériel récolté en Guyane française. en se fondant sur les différences morphologiques des stades sexués et asexués avec les espèces de Chaetopsina connues, ainsi que sur l'analyse phylogénétique des séquences itS et LSu, C. guya-nensis et C. saulensis sont proposées comme espèces nouvelles. en outre, deux nouvelles combinaisons sont proposées et trois espèces sont réintégrées dans le genre Chaetopsina.
Acremonium is acknowledged as a highly ubiquitous genus including saprobic, parasitic, or endophytic fungi that inhabit a variety of environments. Species of this genus are extensively exploited in industrial, commercial, pharmaceutical, and biocontrol applications, and proved to be a rich source of novel and bioactive secondary metabolites. Acremonium has been recognised as a taxonomically difficult group of ascomycetes, due to the reduced and high plasticity of morphological characters, wide ecological distribution and substrate range. Recent advances in molecular phylogenies, revealed that Acremonium is highly polyphyletic and members of Acremonium s. lat. belong to at least three distinct orders of Sordariomycetes , of which numerous orders, families and genera with acremonium-like morphs remain undefined. To infer the phylogenetic relationships and establish a natural classification for acremonium-like taxa, systematic analyses were conducted based on a large number of cultures with a global distribution and varied substrates. A total of 633 cultures with acremonium-like morphology, including 261 ex-type cultures from 89 countries and a variety of substrates including soil, plants, fungi, humans, insects, air, and water were examined. An overview phylogenetic tree based on three loci (ITS, LSU, rpb2 ) was generated to delimit the orders and families. Separate trees based on a combined analysis of four loci (ITS, LSU, rpb2 , tef-1α ) were used to delimit species at generic and family levels. Combined with the morphological features, host associations and ecological analyses, acremonium-like species evaluated in the present study are currently assigned to 63 genera, and 14 families in Cephalothecales , Glomerellales and Hypocreales , mainly in the families Bionectriaceae , Plectosphaerellaceae and Sarocladiaceae and five new hypocrealean families, namely Chrysonectriaceae , Neoacremoniaceae , Nothoacremoniaceae , Pseudoniessliaceae and Valsonectriaceae . Among them, 17 new genera and 63 new combinations are proposed, with descriptions of 65 new species. Furthermore, one epitype and one neotype are designated to stabilise the taxonomy and use of older names. Results of this study demonstrated that most species of Acremonium s. lat. grouped in genera of Bionectriaceae , including the type A. alternatum . A phylogenetic backbone tree is provided for Bionectriaceae , in which 183 species are recognised and 39 well-supported genera are resolved, including 10 new genera. Additionally, rpb2 and tef-1α are proposed as potential DNA barcodes for the identification of taxa in Bionectriaceae .
This paper provides outlines for Bionectriaceae, Calcarisporiaceae, Hypocreaceae, Nectriaceae, Tilachlidiaceae, Ijuhyaceae, Stromatonectriaceae and Xanthonectriaceae with taxonomic treatments. We provide up-to-date DNA sequence-based phylogenies including combined gene analysis of ITS, LSU, rpb2, tef1 and tub2 for Hypocreales and accept 17 families. Three new families and 12 new species are introduced with descriptions and illustrations, while 13 new records and one new species combination are provided. Here we mainly detail the taxonomy of Bionectriaceae, Hypocreaceae, Nectriaceae and Tilachlidiaceae, Ijuhyaceae fam. nov., Stromatonectriaceae fam. nov. and Xanthonectriaceae fam. nov. are introduced in this study based on phenotypic and molecular analyses. For each family we provide a list of accepted genera, the taxonomic history, morphological descriptions, taxonomic placement based on DNA sequence data and illustrate the type genus. Representatives of each family are illustrated based on the type herbarium material or fresh specimens where available, or provide relevant references. Notes on ecological and economic importance of the families are also given.
