A Systematic Assessment of Morchella Using RFLP Analysis of the 28S ribosomal RNA gene

Bunyard, Britt A.; Nicholson, Michael S.; Royse, Daniel J.

doi:10.2307/3760589

Cited by 85 publications

(38 citation statements)

References 24 publications

(33 reference statements)

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“…The ascocarps of Morchella species comprise one of the most important non-timber forest products currently exploited in North America with 225 metric tons traded annually in North America (Bunyard et al 1994, Duchesne et al 2001, Pilz and Molina 2002, Wurtz et al 2005. Cultivation of Morchella remains costly due to limited production of sclerotia; in consequence the industry has continued to rely on wild ascocarps, especially those arising after disturbances (Barnes and Wilson 1998, Obst et al 2000, Winder and Keefer 2008.…”

Section: Introductionmentioning

confidence: 97%

Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire

2010

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We studied the density of ascocarps (mushrooms) of morels (Morchella) and pixie cups (Geo-pyxis carbonaria) as a function of postfire duff (forest floor organic layer) depth in the first 4 y after a wildfire. The great majority of ascocarps of both species appeared in the first summer (2004) after an Aug 2003 fire in predominantly pine-spruce montane stands in Kootenay National Park, British Columbia. The spatial distribution of the ascocarps of both species was strongly biased toward (i) microsites with thin postfire duff and (ii) proximity to standing burned tree trunks. The bases of ascocarps of both species invariably were found just below the surface of the mineral soil. A field experiment in nearby intact forest showed that complete or partial duff removal in the absence of damage to the roots or crown did not lead to ascocarps of either species. We conclude that for both fungal species an unusually large abundance of ascocarps simultaneously requires damage to the associated trees and major duff reduction.

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Section: Introductionmentioning

confidence: 97%

Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire

2010

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“…DNA was extracted and amplified using PCR following the methods of Peláez et al (1996) or Johnston and Park (2013). Amplification primers used for the ITS1-5.8S-ITS2 region were ITS1F, ITS5, ITS4, or ITS4a (White et al 1990;Gardes and Bruns 1993;Larena et al 1999), for the LSU region were LROR and LR5 (Bunyard et al 1994;Vilgalys and Hester 1990), and for the SSU region were NS1 and NS4 (White et al 1990). Purified PCR products were directly sequenced using the same primer pairs as in the PCR reactions.…”

Section: Methodsmentioning

confidence: 99%

The phylogenetic relationships of Torrendiella and Hymenotorrendiella gen. nov. within the Leotiomycetes

Johnston¹,

Park²,

Baral³

et al. 2014

Phytotaxa

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Morphological and phylogenetic data are used to revise the genus Torrendiella. The type species, described from Europe, is retained within the Rutstroemiaceae. However, Torrendiella species reported from Australasia, southern South America and China were found to be phylogenetically distinct and have been recombined in the newly proposed genus Hymenotorrendiella. The Hymenotorrendiella species are distinguished morphologically from Rutstroemia in having a Hymenoscyphus-type rather than Sclerotinia-type ascus apex. Zoellneria, linked taxonomically to Torrendiella in the past, is genetically distinct and a synonym of Chaetomella.

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“…Primers LROR (Bunyard et al 1994) and LR6 (Vilgalys and Hester 1990) were used both to amplify and sequence the LSU region. A consensus sequence was determined from overlapping sequence data with the software Sequencher TM (Gene Codes Corp., Ann Arbor, Michigan) and deposited in GenBank (accession No.…”

Section: Methodsmentioning

confidence: 99%

Evidence that the gemmae of Papulaspora sepedonioides are neotenous perithecia in the Melanosporales

Davey¹,

Tsuneda²,

Currah

2008

Mycologia

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Papulaspora sepedonioides produces large multicellular gemmae with several, thick-walled central cells enclosed within a sheath of smaller thin-walled cells. Phylogenetic analysis of the large subunit rDNA indicates P. sepedonioides has affinities to the Melanosporales (Hypocreomycetidae). The development of gemmae in P. sepedonioides was characterized by light and scanning and transmission electron microscopy and was similar to previous ontogenetic studies of ascoma development in the Melanosporales. However instead of giving rise to ascogenous tissues the central cells of the incipient gemma became darkly pigmented, thick walled and filled with lipid globules while the contents of the sheath cells autolysed, leaving them empty and deflated at maturity. Both central cells and pre-autolytic sheath cells produced both germ tubes and new gemmae primordia, suggesting microcyclic conidiogenesis occurs in this species. Mature gemmae were non-deciduous or seceded by schizolytic secession and appear to have both perennating and disseminative potential. The evolution of these neotenous perithecial propagules may be driven by life-history and ecological factors selecting for functional versatility.

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A Systematic Assessment of Morchella Using RFLP Analysis of the 28S ribosomal RNA gene

Cited by 85 publications

References 24 publications

Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire

Emergence of morel (Morchella) and pixie cup (Geopyxis carbonaria) ascocarps in response to the intensity of forest floor combustion during a wildfire

The phylogenetic relationships of Torrendiella and Hymenotorrendiella gen. nov. within the Leotiomycetes

Evidence that the gemmae of Papulaspora sepedonioides are neotenous perithecia in the Melanosporales

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