<i>Lepiota brunneoincarnata</i> and <i>L. subincarnata:</i> distribution and phylogeny

Razaq, Abdul; Vellinga, Else C.; Ilyas, Sobia; Khalid, Arooj

doi:10.5248/126.133

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…The macroscopic and microscopic characteristics of L. brunneoincarnata are in accordance with the previous literatures [ 13 , 21 ], and the macroscopic and microscopic characteristics of L. venenata MHHNU 31031 has been described in our previous paper [ 14 ]. The identifications were further confirmed by ITS sequences and the results strongly indicated that the samples of MHHNU 31026, MHHNU 31030, and MHHNU 31032 are L. brunneoincarnata with a strong bootstrap support (100%), and L. venenata MHHNU 31031 sample represents an independent species ( Figure 2 ).…”

Section: Resultssupporting

confidence: 90%

Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

Long

Fan

et al. 2020

Mycobiology

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Three hepatic failure poisoning incidents caused by Lepiota brunneoincarnata and Lepiota venenata mushrooms have been occurred in China in 2017, L. venenata has been described as a new species. However, the cyclopeptide toxins of these lethal mushrooms remain poorly understood. In this study, the composition and content of amatoxins in L. brunneoincarnata and L. venenata are analyzed and compared, the analysis of composition and content of amatoxins in L. venenata are reported for the first time. The results showed that β-amanitin (β-AMA), α-amanitin (α-AMA), amanin, and amaninamide were identified in L. brunneoincarnata , and α-AMA, amanin II (an analog of amanin), and an unknown compound were identified in L. venenata . The differences between L. brunneoincarnata and L. venenata in the identified compounds provide chemical evidence for L. venenata as a new species. Quantitative analysis shows that α-AMA concentrations in L. brunneoincarnata and L. venenata were 0.72–1.97 mg/g dry weight, β-AMA concentrations in L. brunneoincarnata were 0.57–0.94 mg/g dry weight, and β-AMA was absent in L. venenata .

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Section: Resultssupporting

confidence: 90%

Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

Long

Fan

et al. 2020

Mycobiology

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“…Although most Lepiota species of sect. Ovisporae (Vellinga, 2001;Liang et al, 2018) are smaller in size and are much less conspicuous and attractive in appearance (Razaq et al, 2013), they do account for fatal cases. In fact, although several Amanita species represent the most notorious source of amatoxins and are responsible for most fatal mushroom poisonings worldwide (Enjalbert et al, 2002;Tang et al, 2016;Wei et al, 2017;Diaz, 2018;Walton, 2018), fatal intoxications after ingestion of amatoxin-containing species of Lepiota also occur (Sgambelluri et al, 2014;Diaz, 2018).…”

Section: Discussionmentioning

confidence: 99%

First Report of a Neotropical Agaric (Lepiota spiculata, Agaricales, Basidiomycota) Containing Lethal α-Amanitin at Toxicologically Relevant Levels

Angelini¹,

Vizzini

Justo³

et al. 2020

Front. Microbiol.

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A recent collection of Lepiota spiculata from the Dominican Republic is presented here. Macro-and micromorphological features of L. spiculata are described in detail, and its evolutionary (phylogenetic) position within Lepiota sect. Ovisporae, in the subincarnata/brunneoincarnata clade, is assessed on the basis of a combined nrLSU + nrITS + rpb2 + tef1 analysis. Additionally, high levels of deadly amatoxins were detected and quantified in L. spiculata for the first time by HPLC analysis; in particular, α-amanitin was found at concentrations up to approximately 4 mg/g dry weight, which render L. spiculata a potentially lethal mushroom, if ingested.

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“…The idea that microbes lack dispersal limitations and have extremely broad geographic ranges, in most cases, has now generally been rejected (Dickey et al, 2021; Fontaneto, 2011), although numerous exceptions exist for individual fungal species (e.g. Lepiota subincarnata as shown in Razaq et al, 2014 or Rhodocollybia laulaha as shown in Keirle et al, 2010). Restricted ranges among continental populations of saprotrophic and ectomycorrhizal (ECM) macro‐fungi have been found based on observational data (Andrew et al, 2018) and curated Sanger sequence meta‐analyses (Bazzicalupo et al, 2019), and in ECM fungi based on high‐throughput sequencing data at global scales (e.g.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Do endemic mushrooms on oceanic islands and archipelagos support the theory of island biogeography?

Stallman

Robinson

Knope

2022

Journal of Biogeography

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Aim Terrestrial plant species on islands have a long history of study to determine how they evolved and what explains their levels of endemicity, but studies on fungi are lacking. Here, we examine: (1) how percent endemism of non‐lichenized class Agaricomycetes; hereafter, ‘mushrooms’ compares to angiosperms, ferns, bryophytes and lichens from oceanic islands/archipelagos; (2) whether endemic mushrooms evolved from an ancestor diversifying into multiple species after island colonization (cladogenesis) or over time evolved into a single endemic species unique from its ancestral mainland counterpart (anagenesis); and (3) if mushroom percent endemism and cladogenesis are correlated to geographic variables that help explain these phenomena in other species groups. Location Hawaiʻi, Galápagos, Canary Islands, Madeira, Azores, Cabo Verde, Christmas Island. Taxon Mushrooms, angiosperms, ferns, bryophytes, lichens. Methods Checklists of mushrooms and other species groups from seven oceanic islands/archipelagos were compared. Having multiple endemic congeners from a single island/archipelago was used to infer cladogenesis versus anagenesis in endemic mushrooms. Pearson's correlation coefficients were calculated between an island/archipelago's percent endemism and percent cladogenesis, and their distance to the nearest mainland, area, maximum elevation and latitude from the equator. Results Hawaiʻi has the highest mushroom endemicity at 83%, of which 50% are potentially derived from cladogenesis. Considering mushrooms on all islands/archipelagos, speciation by cladogenesis leads to fewer endemic species (37%) than anagenesis (63%). We find positive and statistically significant relationships between distance to mainland and island area with percent endemism among mushrooms, and cladogenesis is positively and significantly correlated with island size and maximum elevation. Main conclusions Mushrooms show greater percent endemism on larger, more isolated islands/archipelagos. However, they display the lowest percent species derived from cladogenesis among the organismal groups examined. Both the lack of data and unreliability of data are impediments to studying fungal endemism on islands, making drawing decisive conclusions challenging.

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Lepiota brunneoincarnata and L. subincarnata: distribution and phylogeny

Cited by 7 publications

References 9 publications

Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

Determination of Amatoxins in Lepiota brunneoincarnata and Lepiota venenata by High-Performance Liquid Chromatography Coupled with Mass Spectrometry

First Report of a Neotropical Agaric (Lepiota spiculata, Agaricales, Basidiomycota) Containing Lethal α-Amanitin at Toxicologically Relevant Levels

Do endemic mushrooms on oceanic islands and archipelagos support the theory of island biogeography?

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