Inside<i>Plectosphaerellaceae</i>

Giraldo, Alejandra; Crous, Pedro W.

doi:10.1016/j.simyco.2018.10.005

Cited by 47 publications

(41 citation statements)

References 68 publications

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“…1 and 3 and Table 1). Additionally, we obtained several isolates (n = 17) of C. albus, which was recently described from a lichen (Hypogymnia physodes) and human sputum (Giraldo et al 2017), but also reported from soil in Belgium, France, Germany and the Netherlands (Giraldo and Crous 2019). In addition, we have identified several isolates from genera r e c e n t l y Brunneochlamydosporium nepalense and B. macroclavatum were represented in our study with seven and one isolate respectively.…”

Section: Discussionsupporting

confidence: 60%

“…According to Prenafeta-Boldú et al (2014), the former species seems to be a common soil-borne fungus in the Netherlands, being present in Gelderland, North and South Holland and Utrecht provinces, while B. macroclavatum was isolated from a fern, and the flowering plant, Aphelandra sp. (Acanthaceae), but not from soil (Giraldo and Crous 2019 Furcasterigmium furcatum was established based on Acremonium furcatum, and it was represented in our study with four isolates collected from North Brabant, South Holland and Utrecht provinces. Like B. nepalense, this species was recovered from soil in the Netherlands, but is also present in soils from France, Germany and Italy (Gams 1971;Giraldo and Crous 2019).…”

Section: Discussionmentioning

confidence: 98%

“…rietveltiae vs 2.8-4.4 μm in Ph. bifurcatum) and does not produce melanin precipitations in culture (Giraldo and Crous 2019).…”

Section: Phialoparvum Maaspleinensementioning

confidence: 92%

“…Notes: The monotypic genus Phialoparvum was recently proposed based on Ph. bifurcatum, recovered from soil in Belgium (Giraldo and Crous 2019). Phialoparvum bifurcatum and the new species, Ph.…”

Section: Phialoparvum Maaspleinensementioning

confidence: 99%

“…Members of this family are mainly known from their asexual morphs, which are morphologically characterised by simple or verticillate conidiophores with mono-or polyphialidic conidiogenous cells, and 1-or 2-celled elongate conidia arranged in slimy heads or chains, and rarely produced sporodochia or synnemata. The sexual morph is mostly observed in culture, showing perithecial or cleistothecial ascomata, superficial, brown to dark brown, with clavate or saccate asci and hyaline to pale brown ascospores (Giraldo and Crous 2019).…”

Section: Introductionmentioning

confidence: 99%

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New plectosphaerellaceous species from Dutch garden soil

2019

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During 2017, the Westerdijk Fungal Biodiversity Institute (WI) and the Utrecht University Museum launched a Citizen Science project. Dutch school children collected soil samples from gardens at different localities in the Netherlands, and submitted them to the WI where they were analysed in order to find new fungal species. Around 3000 fungal isolates, including filamentous fungi and yeasts, were cultured, preserved and submitted for DNA sequencing. Through analysis of the ITS and LSU sequences from the obtained isolates, several plectosphaerellaceous fungi were identified for further study. Based on morphological characters and the combined analysis of the ITS and TEF1-α sequences, some isolates were found to represent new species in the genera Phialoparvum, i.e. Ph. maaspleinense and Ph. rietveltiae, and Plectosphaerella, i.e. Pl. hanneae and Pl. verschoorii, which are described and illustrated here.

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Section: Discussionsupporting

confidence: 60%

Section: Discussionmentioning

confidence: 98%

“…rietveltiae vs 2.8-4.4 μm in Ph. bifurcatum) and does not produce melanin precipitations in culture (Giraldo and Crous 2019).…”

Section: Phialoparvum Maaspleinensementioning

confidence: 92%

Section: Phialoparvum Maaspleinensementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New plectosphaerellaceous species from Dutch garden soil

2019

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High‐resolution biomonitoring of plant pathogens and plant species using metabarcoding of pollen pellet contents collected from a honey bee hive

et al. 2019

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The Canadian beekeeping industry is spread across the country, with the greatest proportion of managed honey bee colonies occurring in the Prairie Provinces. Nationally, the number of beekeepers has recently been trending upwards. Simultaneously, agronomic and environmental plant pest incidents are increasing due to a number of factors, including the introduction of exotic organisms through international trade, which is a major pathway for the introduction of potentially invasive alien species and quarantine pests. Therefore, regulatory agencies are interested in developing high‐throughput tools to achieve earlier detection of unwanted species in order to expedite application of mitigating measures to limit the impacts of their introduction. This study evaluates the potential of pollen pellet contents collected by honey bees to monitor plant pests using metabarcoding, a high‐throughput sequencing (HTS) approach for monitoring complex environmental samples. The study used the ITS1 intergenic region to target oomycetes and fungi, the ATP9‐NAD9 spacer to specifically target Phytophthora species, and the ITS2 region to target plant species. From the HTS results, a number of plants that were detected corresponded to known hosts of certain pathogens or species closely related to potentially invasive plant species. Genera including phytopathogenic species found in the pollen samples comprised Fusarium sp., Ophiostoma sp., Peronospora sp., Phytophthora sp., and Pythium sp. Correlations, high entropy, and co‐occurrences between certain plants and oomycetes or fungi were observed. The potential for using honey bee‐collected pollen pellets to study phytopathogens in a given environment is demonstrated here, and this concept could represent a promising complementary tool for the surveillance of phytopathogens or unwanted plants with previously described air and insect sampling methods if the protocol was applied with additional genetic markers.

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