Sieverdingia gen. nov., S. tortuosa comb. nov., and Diversispora peloponnesiaca sp. nov. in the Diversisporaceae (Glomeromycota)

Błaszkowski, Janusz; Niezgoda, Piotr; Paiva, Jéssica Nunes; Silva, Kássia Jéssica Galdino da; Theodoro, Raquel Cordeiro; Jobim, Khadija; Orfanoudakis, Michail; Goto, Bruno Tomio

doi:10.1007/s11557-019-01534-x

Cited by 11 publications

(8 citation statements)

References 54 publications

(90 reference statements)

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“…As expected, vesicle formation by Gigasporales, Archaeosporales, and Paraglomerales isolates was not observed. Two Diversisporales species also formed no vesicles in contrast to earlier reports (Oehl et al 2011b;Błaszkowski 2012;Błaszkowski et al 2019). It must be considered that hyphae, arbuscules, and vesicles of Archaeosporaceae and Paraglomeraceae barely stain in trypan blue or ink (Oehl et al 2011a, b) and therefore might have been underestimated.…”

Section: Discussioncontrasting

confidence: 94%

“…Reference slides of the isolates were deposited at the mycological herbarium of ETH Zurich (Z + ZT). For morphological spore identification, the identification manual of Błaszkowski (2012) for Glomeromycota was used and was based on the classification system of Oehl et al (2011b), considering the most recent updates (e.g., Baltruschat et al 2019;Błaszkowski et al 2015Błaszkowski et al , 2018aBłaszkowski et al 2019;Wijayawardene et al 2020).…”

Section: Morphological Characterization Of Amf Isolatesmentioning

confidence: 99%

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Ancient lineages of arbuscular mycorrhizal fungi provide little plant benefit

et al. 2021

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Almost all land plants form symbiotic associations with arbuscular mycorrhizal fungi (AMF). Individual plants usually are colonized by a wide range of phylogenetically diverse AMF species. The impact that different AMF taxa have on plant growth is only partly understood. We screened 44 AMF isolates for their effect on growth promotion and nutrient uptake of leek plants (Allium porrum), including isolates that have not been tested previously. In particular, we aimed to test weather AMF lineages with an ancient evolutionary age differ from relatively recent lineages in their effects on leek plants. The AMF isolates that were tested covered 18 species from all five AMF orders, eight families, and 13 genera. The experiment was conducted in a greenhouse. A soil–sand mixture was used as substrate for the leek plants. Plant growth response to inoculation with AMF varied from − 19 to 232% and depended on isolate, species, and family identity. Species from the ancient families Archaeosporaceae and Paraglomeraceae tended to be less beneficial, in terms of stimulation plant growth and nutrient uptake, than species of Glomeraceae, Entrophosporaceae, and Diversisporaceae, which are considered phylogenetically more recent than those ancient families. Root colonization levels also depended on AMF family. This study indicates that plant benefit in the symbiosis between plants and AMF is linked to fungal identity and phylogeny and it shows that there are large differences in effectiveness of different AMF.

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Section: Discussioncontrasting

confidence: 94%

Section: Morphological Characterization Of Amf Isolatesmentioning

confidence: 99%

Ancient lineages of arbuscular mycorrhizal fungi provide little plant benefit

et al. 2021

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“…Błaszk., Niezgoda & B.T. Goto, previously Glomus tortuosum (Błaszkowski et al, 2019) and was provided by the Bank of Glomeromycota in China (Beijing). The inoculum of S. tortuosa was cultured in a pot of mature white clover (Trifolium repens).…”

Section: Plant and Fungal Materialsmentioning

confidence: 99%

Effect of the AM Fungus Sieverdingia tortuosa on Common Vetch Responses to an Anthracnose Pathogen

Ding

Zhang

et al. 2020

Front. Microbiol.

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Colletotrichum lentis Damm causes anthracnose in Vicia sativa L, otherwise known as common vetch. It was first reported in China in 2019. This study evaluates the effects of the arbuscular mycorrhizal (AM) fungus Sieverdingia tortuosa (N.C. Schenck & G.S. Sm.) Błaszk., Niezgoda, & B.T. Goto on growth and disease severity in common vetch. Our main finding is that the AM fungus increased root biomass and reduced anthracnose severity of common vetch. Responses correlated with defense, such as chitinase activity, polyphenol oxidase (PPO) activity, the concentrations of jasmonic acid and proline, and the expression of resistance-related genes (e.g., upregulated “signal transduction,” “MAPK signaling pathway,” “chitinase activity,” “response to stress,” and the KEGG pathways “phenylpropanoid biosynthesis,” “MAPK signaling pathways,” and “plant-pathogen interactions”), were also affected These findings provide insight into the mechanism by which this AM fungus regulates the defense response of common vetch to C. lentis.

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“…Similar specimens identified as G. microcarpum with a spore wall as that characterized by Błaszkowski (2012) were presented by Oehl et al (2011) and repeatedly found in Northeast Brazil (unpublished data). Of the Glomeromycota species grown in culture, only Sieverdingia tortuosa produced spores with a one-layered spore wall (Błaszkowski et al, 2019a), and in most of glomoid and glomoid-like spore-producing species, their laminate spore wall layer is covered with a relatively thin, usually short-lived, rarely permanent layer (Oehl et al, 2011;Błaszkowski, 2012). In field-collected spores, this outer spore wall layer is usually strongly or completely sloughed off, and therefore, it is difficult to detect or no longer present.…”

Section: Discussionmentioning

confidence: 99%

New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia

et al. 2021

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Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole structure that distinguished the two fungi was the laminate layer 2 of their three-layered spore wall, which in spores of the second fungus crushed in PVLG-based mountants contracted and, consequently, transferred into a crown-like structure. Surprisingly, phylogenetic analyses of sequences of the 18S-ITS-28S nuc rDNA and the rpb1 gene indicated that these glomerocarps represent two strongly divergent undescribed species in the family Glomeraceae. The analyses placed the first in the genus Dominikia, and the second in a sister clade to the monospecific generic clade Kamienskia with Kamienskia bistrata. The first species was described here as Dominikia glomerocarpica sp. nov. Because D. glomerocarpica is the first glomerocarp-forming species in Dominikia, the generic description of this genus was emended. The very large phylogenetic distance and the fundamental morphological differences between the second species and K. bistrata suggested us to introduce a new genus, here named as Epigeocarpum gen. nov., and name the new species Epigeocarpum crypticum sp. nov. In addition, our analyses also focused on an arbuscular mycorrhizal fungus originally described as Rhizophagus neocaledonicus, later transferred to the genus Rhizoglomus. The analyses indicated that this species does not belong to any of these two genera but represents a new clade at the rank of genus in the Glomeraceae, here described as Silvaspora gen. nov.

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Sieverdingia gen. nov., S. tortuosa comb. nov., and Diversispora peloponnesiaca sp. nov. in the Diversisporaceae (Glomeromycota)

Cited by 11 publications

References 54 publications

Ancient lineages of arbuscular mycorrhizal fungi provide little plant benefit

Ancient lineages of arbuscular mycorrhizal fungi provide little plant benefit

Effect of the AM Fungus Sieverdingia tortuosa on Common Vetch Responses to an Anthracnose Pathogen

New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia

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