Taxonomy, phylogeny and identification of Chaetomiaceae with emphasis on thermophilic species

Wang, X.W.; Han, Pei‐Jie; Bai, Feng‐Yan; Luo, Ao; Bensch, Konstanze; Meijer, M.; Kraak, Bart; Han, Dan‐Ni; Sun, Bainian; Crous, Pedro W.; Houbraken, Jos

doi:10.3114/sim.2022.101.03

Cited by 44 publications

(28 citation statements)

References 82 publications

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“…Canariomyces notabilis was first isolated from litter of Phoenix canariensis in the Canary Islands as the name shows (Von Arx et al, 1984;Zhang et al, 2021). Species of the genus were found to determine rot in mangos (Rottstock et al, 2014;Sudrama et al, 2020) and others are medically important infective species (Wang, 2022). Yet the innocuous state has been documented in dessert soil (Wang et al, 2019), water habitats in Iraq (Abdullah & Dossary, 2014) and Cedrus atlantica in Algeria (Cherak et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

ENDOPHYTIC FUNGAL COMMUNITY OF ALIEN Nicotiana glauca IN TENERIFE, CANARY ISLANDS

Espinel¹,

Giménez²,

Cabrera³

2022

Rom. J. Plant. Prot.

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Nicotiana glauca it is naturally distributed throughout South America. It was introduced in North America, Europe, Africa, Asia and Oceania and arrived to the Canary Islands as an ornamental plant, where has been invading altered soils. Endophytic fungi are known to produce active compounds that provide protection to their host against diseases and attack of herbivores, these microorganisms being an interesting source of novel molecules. So far, the endophytic fungal communities of Nicotiana have not been studied in the Canary Islands. The goal of this study is to evaluate the diversity of the fungal endophytes community associated with Nicotiana glauca. A total of 36 fungal species were isolated from roots, stems and leaves of plants collected in three locations from Tenerife Island - San Miguel de Abona, Fasnia and Puerto de la Cruz. The highest species richness values were found in leaves and stems (Margalef index = 3.33 and 3.36, respectively) versus roots (Margalef index = 2.52). Simpson's index complements the results of the Margalef index, indicating a fungal community with a high dominance value in roots (D = 0.65) due to the presence of multiple Fusarium species. Fungal community in Fasnia had the highest value of species richness (Margalef index = 3.69 versus 2.17 and 2.27 for San Miguel de Abona and Puerto de la Cruz, respectively). Results indicate fungal specificity to organ and location with 13 genera isolated from a single location and organ, among which rare species like Collariella and Gelasinospora. In this study was detected and isolated for the first time in Canary Islands the fungal species Collariella hilkhuijsenii which is of importance for the ecology of this genus scarcely known. Special attention should be offered to the presence of Fusarium, which possibly relates to the alkaloid production ability of both, the plant and the fungal strains.

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Section: Resultsmentioning

confidence: 99%

ENDOPHYTIC FUNGAL COMMUNITY OF ALIEN Nicotiana glauca IN TENERIFE, CANARY ISLANDS

Espinel¹,

Giménez²,

Cabrera³

2022

Rom. J. Plant. Prot.

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“…Increased abundance of Chaetomiaceae has also been documented following application of dazomet and various isothiocyanates [ 89 , 103 ]. Members of Chaetomiaceae are ubiquitous soil saprophytic fungi capable of degrading cellulose [ 104 , 105 ] and its abundance increases in compost-amended soils [ 106 ], indicating this group may be able to take advantage of soil nutrients that become available after MS application more quickly than other fungi. One the other hand, repeated MS fumigation decreased Basidiomycota , represented by Tremellomycetes yeasts, such as Solicocozyma , Tausonia , Papiliotrema , and Vishniacozyma .…”

Section: Discussionmentioning

confidence: 99%

Legacy effects of fumigation on soil bacterial and fungal communities and their response to metam sodium application

Skillman

Dung

et al. 2022

Environmental Microbiome

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Background Soil microorganisms are integral to maintaining soil health and crop productivity, but fumigation used to suppress soilborne diseases may affect soil microbiota. Currently, little is known about the legacy effects of soil fumigation on soil microbial communities and their response to fumigation at the production scale. Here, 16S rRNA gene and internal transcribed spacer amplicon sequencing was used to characterize the bacterial and fungal communities in soils from intensively managed crop fields with and without previous exposure to metam sodium (MS) fumigation. The effect of fumigation history, soil series, and rotation crop diversity on microbial community variation was estimated and the response of the soil microbiome to MS application in an open microcosm system was documented. Results We found that previous MS fumigation reduced soil bacterial diversity but did not affect microbial richness and fungal diversity. Fumigation history, soil series, and rotation crop diversity were the main contributors to the variation in microbial β-diversity. Between fumigated and non-fumigated soils, predominant bacterial and fungal taxa were similar; however, their relative abundance varied with fumigation history. In particular, the abundance of Basidiomycete yeasts was decreased in fumigated soils. MS fumigation also altered soil bacterial and fungal co-occurrence network structure and associations. In microcosms, application of MS reduced soil microbial richness and bacterial diversity. Soil microbial β-diversity was also affected but microbial communities of the microcosm soils were always similar to that of the field soils used to establish the microcosms. MS application also induced changes in relative abundance of several predominant bacterial and fungal genera based on a soil’s previous fumigation exposure. Conclusions The legacy effects of MS fumigation are more pronounced on soil bacterial diversity, β-diversity and networks. Repeated fumigant applications shift soil microbial compositions and may contribute to differential MS sensitivity among soil microorganisms. Following MS application, microbial richness and bacterial diversity decreases, but microbial β-diversity was similar to that of the field soils used to establish the microcosms in the short-term (< 6 weeks). The responses of soil microbiome to MS fumigation are context dependent and rely on abiotic, biotic, and agricultural management practices.

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“…Using our results from UNITE, NCBI, and T-BAS ( supplementary fig. 4 ) to guide taxon sampling, we searched the literature for existing phylogenies and available genetic marker sequences for the different lineages to which our samples potentially belonged ( Nygren 2011 ; Wang 2016 , 2022 ; Chen et al 2017 ; Wanasinghe 2017 ; Crous 2019 , 2021 ; Jaklitsch 2018 ; Valenzuela-Lopez 2018 ; Hyde 2019 ; Hou 2020 ; Scarpari 2020 ; Vieira 2020 ; Jiang 2021 ; Karácsony et al 2021 ; Liu 2022 ; Wanasinghe and Mortimer 2022 ). Various combinations of 13 genetic markers were selected for the different lineages, sequences for which were retrieved from GenBank ( supplementary table 4 ).…”

Section: Methodsmentioning

confidence: 99%

Tapping Culture Collections for Fungal Endophytes: First Genome Assemblies for Three Genera and Five Species in theAscomycota

Hill

Levicky

Pitsillides

et al. 2023

Genome Biology and Evolution

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The Ascomycota form the largest phylum in the fungal kingdom and show a wide diversity of lifestyles, some involving associations with plants. Genomic data is available for many ascomycetes that are pathogenic to plants, but endophytes, which are asymptomatic inhabitants of plants, are relatively understudied. Here, using short- and long-read technologies, we have sequenced and assembled genomes for 15 endophytic ascomycete strains from CABI’s culture collections. We used phylogenetic analysis to refine the classification of taxa, which revealed that 7 of our 15 genome assemblies are the first for the genus and/or species. We also demonstrated that cytometric genome size estimates can act as a valuable metric for assessing assembly ‘completeness’, which can easily be overestimated when using BUSCOs alone and has broader implications for genome assembly initiatives. In producing these new genome resources, we emphasise the value of mining existing culture collections to produce data that can help to address major research questions relating to plant–fungal interactions.

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Taxonomy, phylogeny and identification of Chaetomiaceae with emphasis on thermophilic species

Cited by 44 publications

References 82 publications

ENDOPHYTIC FUNGAL COMMUNITY OF ALIEN Nicotiana glauca IN TENERIFE, CANARY ISLANDS

ENDOPHYTIC FUNGAL COMMUNITY OF ALIEN Nicotiana glauca IN TENERIFE, CANARY ISLANDS

Legacy effects of fumigation on soil bacterial and fungal communities and their response to metam sodium application

Tapping Culture Collections for Fungal Endophytes: First Genome Assemblies for Three Genera and Five Species in theAscomycota

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