Cadophora species associated with wood-decay of grapevine in North America

Travadon, Renaud; Lawrence, Daniel P.; Rooney-Latham, S.; Gubler, W. D.; Wilcox, Wayne F.; Rolshausen, Philippe E.; Baumgartner, Kendra

doi:10.1016/j.funbio.2014.11.002

Cited by 98 publications

(104 citation statements)

References 20 publications

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“…However, other widespread root biotrophs such as the Sebacinales (Weiß et al, 2016) also were remarkably under-represented, despite being able to establish stable interactions with Brassicaceae species (Banhara et al, 2015;Lahrmann et al, 2015). Many of the dominant fungi in our dataset are related to common facultative pathogens of Brassicaceae and other plants (Thomma, 2003;Michielse & Rep, 2009;Travadon et al, 2015). Nevertheless, it is unlikely that most endophytes function as pathogens in nature, given their ubiquity in healthy hosts and their ability to become mutualists under certain conditions New Phytologist (Rodriguez et al, 2009;Fesel & Zuccaro, 2016;Hiruma et al, 2016).…”

Section: Discussionmentioning

confidence: 92%

“…Many of the dominant fungi in our dataset are related to common facultative pathogens of Brassicaceae and other plants (Thomma, ; Michielse & Rep, ; Travadon et al ., ). Nevertheless, it is unlikely that most endophytes function as pathogens in nature, given their ubiquity in healthy hosts and their ability to become mutualists under certain conditions (Rodriguez et al ., ; Fesel & Zuccaro, ; Hiruma et al ., ).…”

Section: Discussionmentioning

confidence: 97%

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Facultative root‐colonizing fungi dominate endophytic assemblages in roots of nonmycorrhizal Microthlaspi species

et al. 2017

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There is increasing knowledge on the diversity of root-endophytic fungi, but limited information on their lifestyles and dependence on hosts hampers our understanding of their ecological functions. We compared diversity and biogeographical patterns of cultivable and noncultivable root endophytes to assess whether their occurrence is determined by distinct ecological factors. The endophytic diversity in roots of nonmycorrhizal Microthlaspi spp. growing across Europe was assessed using high-throughput sequencing (HTS) and compared with a previous dataset based on cultivation of endophytes from the same root samples. HTS revealed a large fungal richness undetected by cultivation, but which largely comprised taxa with restricted distributions and/or low representation of sequence reads. Both datasets coincided in a consistent high representation of widespread endophytes within orders Pleosporales, Hypocreales and Helotiales, as well as similar associations of community structure with spatial and environmental conditions. Likewise, distributions of particular endophytes inferred by HTS agreed with cultivation data in suggesting individual ecological preferences. Our findings support that Microthlaspi spp. roots are colonized mostly by saprotrophic and likely facultative endophytes, and that differential niche preferences and distribution ranges among fungi importantly drive the assembly of root-endophytic communities.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 97%

Facultative root‐colonizing fungi dominate endophytic assemblages in roots of nonmycorrhizal Microthlaspi species

et al. 2017

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“…blast search of GenBank (NCBI) of the species‐specific probes for C . luteo‐olivacea or C. malorum gave a 100% match with the target and no match with seven other closely related Cadophora species (Travadon et al ., ). blast search of the N. alba specific probe showed a 100% match with the target and no match with the closest related Neofabraea species.…”

Section: Resultsmentioning

confidence: 97%

Dynamics of post‐harvest pathogens Neofabraea spp. and Cadophora spp. in plant residues in Dutch apple and pear orchards

et al. 2018

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Post-harvest diseases of apple and pear cause significant losses. Neofabraea spp. and Cadophora spp. infect fruits during the growing season and remain quiescent until disease symptoms occur after several months in storage. Epidemiological knowledge of these diseases is limited. TaqMan PCR assays were developed for quantification of N. alba, N. perennans, C. malorum and C. luteo-olivacea in environmental samples. Various host tissues, dead weeds and grasses, soil and applied composts were collected in 10 apple and 10 pear orchards in May 2012. Neofabraea alba was detected in 73% of samples from apple orchards and 48% from pear orchards. Neofabraea perennans was present in a few samples. Cadophora luteo-olivacea was detected in 99% of samples from apple orchards and 93% from pear orchards, whilst C. malorum was not detected in any sample. In apple orchards, highest concentrations of N. alba were found in apple leaf litter, cankers and mummies, and of C. luteo-olivacea in apple leaf litter, mummies and dead weeds. In pear orchards, N. alba and C. luteo-olivacea were found in highest concentrations in pear leaf litter and in dead weeds. Substrate colonization varied considerably between orchards. The temporal dynamics of pathogens was followed in four apple orchards and four pear orchards. In apple orchards the colonization by pathogens decreased from April until August and increased from September until December. This pattern was less pronounced in pear. Knowledge on population dynamics is essential for the development of preventative measures to reduce risks of fruit infections during the growing season.

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“…have been isolated from diverse regions globally (United States, South Africa, Uruguay, Spain, Sweden and Canada) [76]. They have also previously been reported in Antarctica, where extreme weather conditions including UV radiation and high salt concentrations are thought to influence their growth [77,78].…”

Section: Resultsmentioning

confidence: 99%

“…The ability of these fungi to use CMC as a sole carbon source raises the possibility that in their natural habitats they may be able to use cellulose. Many members of the Pseudoeurotiaceae family to which Pseudogymnoascus belongs, grow saprotrophically on woody tissues and rotting vegetation and it is widely believed that they can degrade cellulosic substrates [102], while Cadophora is a natural wood-decay fungus [76,84,103]. …”

Section: Resultsmentioning

confidence: 99%

Characterization of lignocellulolytic activities from fungi isolated from the deep-sea sponge Stelletta normani

et al. 2017

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Extreme habitats have usually been regarded as a source of microorganisms that possess robust proteins that help enable them to survive in such harsh conditions. The deep sea can be considered an extreme habitat due to low temperatures (<5°C) and high pressure, however marine sponges survive in these habitats. While bacteria derived from deep-sea marine sponges have been studied, much less information is available on fungal biodiversity associated with these sponges. Following screening of fourteen fungi isolated from the deep-sea sponge Stelletta normani sampled at a depth of 751 metres, three halotolerant strains (TS2, TS11 and TS12) were identified which displayed high CMCase and xylanase activities. Molecular based taxonomic approaches identified these strains as Cadophora sp. TS2, Emericellopsis sp. TS11 and Pseudogymnoascus sp. TS 12. These three fungi displayed psychrotolerance and halotolerant growth on CMC and xylan as sole carbon sources, with optimal growth rates at 20°C. They produced CMCase and xylanase activities, which displayed optimal temperature and pH values of between 50–70°C and pH 5–8 respectively, together with good thermostability and halotolerance. In solid-state fermentations TS2, TS11 and TS12 produced CMCases, xylanases and peroxidase/phenol oxidases when grown on corn stover and wheat straw. This is the first time that CMCase, xylanase and peroxidase/phenol oxidase activities have been reported in these three fungal genera isolated from a marine sponge. Given the biochemical characteristics of these ligninolytic enzymes it is likely that they may prove useful in future biomass conversion strategies involving lignocellulosic materials.

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Cadophora species associated with wood-decay of grapevine in North America

Cited by 98 publications

References 20 publications

Facultative root‐colonizing fungi dominate endophytic assemblages in roots of nonmycorrhizal Microthlaspi species

Facultative root‐colonizing fungi dominate endophytic assemblages in roots of nonmycorrhizal Microthlaspi species

Dynamics of post‐harvest pathogens Neofabraea spp. and Cadophora spp. in plant residues in Dutch apple and pear orchards

Characterization of lignocellulolytic activities from fungi isolated from the deep-sea sponge Stelletta normani

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