Scleroramularia gen. nov. associated with sooty blotch and flyspeck of apple and pawpaw from the Northern Hemisphere

Li, Huanyu; Sun, Guangyu; Batzer, Jean C.; Crous, Pedro W.; Groenewald, Johannes Z.; Karakaya, Aziz

doi:10.1007/s13225-010-0074-9

Cited by 25 publications

(6 citation statements)

References 26 publications

(35 reference statements)

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“…Acremonium and Diatrypaceae have been widely reported to be isolated from desert halophytes and showed the ability to improve host resistance to biotic stress (Jalili et al, 2020 ; Ameen et al, 2021 ). However, Scleroramularia and Gaeumannomyces have been reported as pathogens of crops (Coombs et al, 2004 ; Li et al, 2011 ), which may be related to the transformation of endophytic fungal lifestyle. Studies have shown that the phase of endosymbiosis represents a balanced interaction between fungal virulence and host defense factors (Kuo et al, 2015 ).…”

Section: Discussionmentioning

confidence: 99%

Species identity and combinations differ in their overall benefits to Astragalus adsurgens plants inoculated with single or multiple endophytic fungi under drought conditions

Zuo

Qin

et al. 2022

Front. Plant Sci.

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Although desert plants often establish multiple simultaneous symbiotic associations with various endophytic fungi in their roots, most studies focus on single fungus inoculation. Therefore, combined inoculation of multiple fungi should be applied to simulate natural habitats with the presence of a local microbiome. Here, a pot experiment was conducted to test the synergistic effects between three extremely arid habitat-adapted root endophytes (Alternaria chlamydospora, Sarocladium kiliense, and Monosporascus sp.). For that, we compared the effects of single fungus vs. combined fungi inoculation, on plant morphology and rhizospheric soil microhabitat of desert plant Astragalus adsurgens grown under drought and non-sterile soil conditions. The results indicated that fungal inoculation mainly influenced root biomass of A. adsurgens, but did not affect the shoot biomass. Both single fungus and combined inoculation decreased plant height (7–17%), but increased stem branching numbers (13–34%). However, fungal inoculation influenced the root length and surface area depending on their species and combinations, with the greatest benefits occurring on S. kiliense inoculation alone and its co-inoculation with Monosporascus sp. (109% and 61%; 54% and 42%). Although A. chlamydospora and co-inoculations with S. kiliense and Monosporascus sp. also appeared to promote root growth, these inoculations resulted in obvious soil acidification. Despite no observed root growth promotion, Monosporascus sp. associated with its combined inoculations maximally facilitated soil organic carbon accumulation. However, noticeably, combined inoculation of the three species had no significant effects on root length, surface area, and biomass, but promoted rhizospheric fungal diversity and abundance most, with Sordariomycetes being the dominant fungal group. This indicates the response of plant growth to fungal inoculation may be different from that of the rhizospheric fungal community. Structural equation modeling also demonstrated that fungal inoculation significantly influenced the interactions among the growth of A. adsurgens, soil factors, and rhizospheric fungal groups. Our findings suggest that, based on species-specific and combinatorial effects, endophytic fungi enhanced the plant root growth, altered soil nutrients, and facilitated rhizospheric fungal community, possibly contributing to desert plant performance and ecological adaptability. These results will provide the basis for evaluating the potential application of fungal inoculants for developing sustainable management for desert ecosystems.

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Section: Discussionmentioning

confidence: 99%

Species identity and combinations differ in their overall benefits to Astragalus adsurgens plants inoculated with single or multiple endophytic fungi under drought conditions

Zuo

Qin

et al. 2022

Front. Plant Sci.

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“…Genomic DNA was extracted from single-conidium isolates that had grown on PDA plates at 25°C in darkness for 4 to 6 wk. DNA was extracted from the mycelium according to the protocol of Li et al [ 24 ]. Four genes were amplified: the internal transcribed spacer region (ITS), the partial β-tubulin gene (TUB2), the nuclear large subunit rDNA gene (LSU) and the DNA dependent RNA polymerase II largest subunit (RPB1).…”

Section: Methodsmentioning

confidence: 99%

Three New Species of Cyphellophora (Chaetothyriales) Associated with Sooty Blotch and Flyspeck

Gao

Zhao

et al. 2015

PLoS ONE

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The genus Cyphellophora includes human- and plant-related species from mammal skin and nails, plant materials, and food. On the basis of analysis of ITS, LSU, TUB2 and RPB1 data and morphological characters, three new species, Cyphellophora phyllostachysdis, C. artocarpi and C. musae, associated with sooty blotch and flyspeck disease, were added to this genus. The 2D structure of ITS1 and ITS2 confirmed this taxonomic status. Pathogenicity tests on apple fruit indicated that C. artocarpi could be a sooty blotch and flyspeck pathogen of apple.

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“…Template DNA for polymerase chain reaction (PCR) was obtained by scraping mycelium from single-conidium isolates that had been grown on PDA plates for 4 to 6 weeks. DNA was extracted from the mycelium according to the protocol of Li et al [23] . The internal transcribed spacer region (ITS) of ribosomal DNA was amplified for all 63 isolates using primer pair ITS1-F/ITS4 [24] .…”

Section: Methodsmentioning

confidence: 99%

Molecular and Morphological Analysis Reveals Five New Species of Zygophiala Associated with Flyspeck Signs on Plant Hosts from China

et al. 2014

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Species in the genus Zygophiala are associated with sooty blotch and flyspeck disease on a wide range of hosts. In this study, 63 Zygophiala isolates collected from flyspeck colonies on a range of plants from several regions of China were used for phylogeny, host range and geographic distribution analysis. Phylogenetic trees were constructed on four genes - internal transcribed spacer (ITS), partial translation elongation factor 1-alpha (TEF), β-tubulin (TUB2), and actin (ACT) – both individually and in combination. Isolates were grouped into 11 clades among which five new species, Z. emperorae, Z. trispora, Z. musae, Z. inaequalis and Z. longispora, were described. Species of Zygophiala differed in observed host range and geographic distribution. Z. wisconsinensis and Z. emperorae were the most prevalent throughout the sampled regions of China, whereas Z. trispora, Z. musae, Z. inaequalis and Z. longispora were collected only in southern China. The hosts of Z. wisconsinensis and Z. emperorae were mainly in the family Rosaceae whereas Z. trispora, Z. musae, Z. inaequalis and Z. longispora were found mainly on banana (Musa spp.). Cross inoculation tests provided evidence of host specificity among SBFS species.

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Scleroramularia gen. nov. associated with sooty blotch and flyspeck of apple and pawpaw from the Northern Hemisphere

Cited by 25 publications

References 26 publications

Species identity and combinations differ in their overall benefits to Astragalus adsurgens plants inoculated with single or multiple endophytic fungi under drought conditions

Species identity and combinations differ in their overall benefits to Astragalus adsurgens plants inoculated with single or multiple endophytic fungi under drought conditions

Three New Species of Cyphellophora (Chaetothyriales) Associated with Sooty Blotch and Flyspeck

Molecular and Morphological Analysis Reveals Five New Species of Zygophiala Associated with Flyspeck Signs on Plant Hosts from China

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