Stationary phase development of Trimmatostroma abietis

Figueras, María José; Hoog, G.S. de; Takeo, Kanji; Guarro, Josep

doi:10.1007/bf00399609

Cited by 16 publications

(5 citation statements)

References 21 publications

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“…The morphological plasticity of MCF is well-known and described for several species [42,49,50], and drastic morphological shifts following changes in microenvironmental conditions were observed, with meristematic hyphae appearing in response to temperature and desiccation stress [30,51]. A conversion from yeast-like to meristematic growth was also considered in the description of K. petricola, and the meristematic growth and penetration of torulose hyphae was associated to stone biodeterioration [32,52].…”

Section: Hyphal Morphologymentioning

confidence: 99%

Hyphal morphology and substrate porosity -rather than melanization- drive penetration of black fungi into carbonate substrates

Tonon

Breitenbach

Voigt

et al. 2021

Journal of Cultural Heritage

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Section: Hyphal Morphologymentioning

confidence: 99%

Hyphal morphology and substrate porosity -rather than melanization- drive penetration of black fungi into carbonate substrates

Tonon

Breitenbach

Voigt

et al. 2021

Journal of Cultural Heritage

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“…A teleomorph is known only for Hyphospora, viz., Comminutispora agavaciencis Ramaley (Ramaley 1996). Endoconidia also occur in other black meristematic genera such as Alternaria (Tsuneda and Currah 2006), Aureobasidium (Hermanides-Nijhof 1977), Capnobotryella (Hambleton et al 2003;Tsuneda and Currah 2006), Coniosporium , Exophiala (Padhye et al 1996), Hormonema (Hermanides-Nijhof 1977), Knufia (Tsuneda and Currah 2004;Tsuneda et al 2005), Sarcinomyces (Wollenzien et al 1997), Scleroconidioma (Tsuneda et al 2000;Hambleton et al 2003), Trimmatostroma (Figueras et al 1996;Zalar et al 1999b), and Wangiella (Matsumoto et al 1990), but in these genera, endoconidia occur only sporadically and (or) are not the primary asexual reproductive propagules. These endoconidium-forming fungi are distributed among at least four orders in the Ascomycota; Chaetothyriales, Dothideales, Capnodiales, and Pleosporales Hambleton et al 2003;Tsuneda et al 2004a;Tsuneda and Currah 2006;Crous et al 2007a).…”

Section: Introductionmentioning

confidence: 97%

Endosporium, a new endoconidial genus allied to the Myriangiales

Tsuneda

Davey

Hambleton

et al. 2008

Botany

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A new endoconidial genus, Endosporium gen. nov., is reported from Alberta, Canada. Two species are described: Endosporium populi-tremuloidis Tsuneda sp. nov. (type species) isolated from a heavily colonized bud of Populus tremuloides Michx., and Endosporium aviarium Tsuneda sp. nov. isolated from the skin of Bombycilla garrulus (L.) (Bohemian waxwing) and a twig of Populus balsamifera L. This genus is morphologically similar to Phaeotheca in forming black, slow-growing colonies (conidiomata) containing numerous, conidiogenous, cellular clumps, but different in that (i) colonies possess aerial, determinate hyphae on the surface; (ii) mature colonies eventually collapse to release a mixture of conidiogenous cellular clumps, endoconidia, and blastic conidia in slimy liquid; and (iii) endoconidia are hyaline. Phylogenetic analyses of nuclear rDNA SSU, LSU, and ITS sequences indicate that Endosporium is phylogenetically distant from other endoconidial taxa, including Phaeotheca, and is most closely related to the Myriangiales (Dothideomycetes). Similarities in stroma and conidioma development as well as ecology between the two taxa suggest that Endosporium can be accommodated within this order, making it the first endoconidial and first black meristematic genus reported in the Myriangiales.Résumé : Les auteurs rapportent le nouveau genre endoconidial Endosporium gen. nov., provenant de l'Alberta au Canada. Ils décrivent deux espèces: Endosporium populi-tremuloidis Tsuneda sp. nov. (espèce type) isolé à partir de bourgeons fortement colonisés du Populus tremuloides Michx., et Endosporium aviarum Tsuneda sp. nov. isolé à partir de la peau du Bombycilla garrulus (L.) (jaseur de Bohème) et un rameau de Populus balsamifera L. Ce genre est morphologiquement similaire au Phaeotheca par la formation de colonies noires à croissance lente (conidiomata) contenant de nombreuses touffes de cellules conidiogène, mais en diffère par (i) des colonies portant sur leur surface des hyphes aériens déterminés; (ii) les colonies matures s'écrasent éventuellement pour relâcher un mélange de touffes cellulaires conidiogè-nes, d'endoconidies et de blastoconidies, dans un liquide visqueux; et (iii) les endoconidies sont hyalines. Les analyses phylogénétiques des séquences rADN, SSU, LSU, et ITS indiquent que l'Endosporium est phylogénétiquement distant des autres taxons endoconidiaux, incluant Phaeotheca, et se rapproche plus des Myriangiales (Dothidéomycètes). Les similitudes de développement des stromas et des conidioma, ainsi que de l'écologie des deux taxons, suggèrent que l'Endosporium peut trouver sa place dans cet ordre, en faisant le premier genre endoconidial et le premier genre de champignon noir des méristèmes, rapporté pour les Myriangiales.

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“…Members of the Dothideales enhance their stress-tolerance with increased melanization (Figueras et al, 1996) combined with thick cell walls and meristematic growth. Ultrastructural studies of the halophilic black yeasts Hortaea werneckii, Phaeotheca triangularis and Trimmatostroma salinum cell walls showed that the organisation of melanin granules is dependent on the concentration of salt in the medium (Kogej et al, 2001;.…”

Section: Discussionmentioning

confidence: 99%