The coelomycetous genera Chaetomella and Pilidium represent a newly discovered lineage of inoperculate discomycetes

Rossman, Amy Y.; Aime, M. C.; Farr, David F.; Castlebury, Lisa A.; Peterson, Kristin R.; Leahy, R. M.

doi:10.1007/s11557-006-0098-4

Cited by 41 publications

(38 citation statements)

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“…Conidia, 2AE6-8AE2 · 1AE0-2AE1 lm, were hyaline, filiform, aseptate, and allantoid to canoe-shaped, forming singly. The fungus fits the description of Pilidium concavum (synanamorph: Hainesia lythri) (Rossman et al, 2004), which is commonly associated with leaf spotting and postharvest diseases in strawberry (Opgenorth & White, 1991;Golebniak & Jarosz, 2004). The fungus was isolated in pure culture on potato dextrose agar.…”

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confidence: 72%

First report of Pilidium concavum causing tan‐brown rot in strawberry fruits in Brazil

et al. 2010

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Chestnut (Castanea spp.) is a very important crop in the Monti Cimini area (Viterbo, Italy) which is seriously infested with the key pest, chestnut gall wasp Dryocosmus kuriphilus (Speranza et al., 2009). In May 2009 such seriously infested chestnut plants in the Monti Cimini area were found with necrotic leaves and galls. Lesions on leaves were irregular and variable in size, lemon green to amber in colour with green margins. Initially, galls were olive green then became dark brown. Inside the galls larvae of chestnut gall wasp were dead. Tissue from the edge of lesions was surface-sterilized using 1% sodium hypochlorite, rinsed in sterile distilled water and aseptically cut in 5-10 pieces not exceeding 5 · 5 mm, plated on potato dextrose agar (PDA) in Petri dishes containing an antibiotic solution (0AE2% streptomycin sulphate) and incubated at 20 ± 3°C. Light brown fungal colonies were observed after 1 week close to the tissue and numerous orange slimy masses of conidia were observed on the culture surface. The colonies were regular in outline with a clear and thinner margin. Conidia were oval to oblong, sometimes slightly obovoid, straight or curved and measured 5AE5-8AE0 lm · 2AE0-3AE0 lm (mean = 6AE8 · 2AE5 lm, n = 210).The fungus was identified at Centraalbureau voor Schimmelcultures (CBS, Utrecht, The Netherlands) as an undescribed species from the genus Gnomoniopsis. Identification was based on both DNA sequencing (ribosomal ITS) and morphology (GenBank Accession Nos. EU254851, EU254854, EU254855). The pathogenicity of the fungus was tested in the Tuscia University experimental farm using freshly isolated cultures. Ten chestnut galls were inoculated, after slight pinprick injury, with an aqueous suspension containing 2 · 10 6 spores ⁄ mL and incubated in clean cheesecloth covered with Parafilm. Control-injured galls were sprayed with sterile distilled water and incubated in the same manner. Control plants did not show any disease symptoms 60 days after inoculation. In contrast, the fungus produced characteristic blight symptoms on 90% of the inoculated galls. Similar blight symptoms were observed on chestnut twigs inoculated with 4 mm discs of 7-day-old PDA cultures. Isolations from these lesions confirmed the presence of a fungus identical to Gnomoniopsis. Although chestnut leaf blight has been reported to be caused by some species of the genus Gnomonia (Sogonov et al., 2008), this appears to be the first record of a fungus in the genus Gnomoniopsis associated with the necrosis of chestnut galls caused by Dryocosmus kuriphilus. This Gnomoniopsis sp. has not been reported in Italy on non gall-infested leaves of chestnut trees (Cristinzio, 1986). The relationship between the necrotrophic propensity of Gnomoniopsis and chestnut gall wasp infestation is under investigation. AcknowledgementThe authors would like to thank the Regione Lazio (Italy) for financial support.

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confidence: 72%

First report of Pilidium concavum causing tan‐brown rot in strawberry fruits in Brazil

et al. 2010

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“…; teleomorph Discohainesia oenotherae (Cooke and Ellis) Nannf.) (Sutton 1980;Rossman et al 2004;Lopes et al 2010;Geng et al 2012), and its identify was further corroborated by phylogenetic comparison of the ITS-rDNA region of isolate CCTU 1200 with other sequences of Pilidium from GenBank which showed 100 % homology with Pilidium concavum isolates from strawberry and other plant species (Fig. 3).…”

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confidence: 63%

“…Even though there are several names published in this the coelomycetous genus Pilidium, only two species, the type P. acerinum and P. concavum are currently accepted (Rossman et al 2004;Kirk et al 2008). Members of this genus have phylogenetic affinity with Leotiomycetes (Rossman et al 2004;Kirk et al 2008).…”

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confidence: 99%

“…Members of this genus have phylogenetic affinity with Leotiomycetes (Rossman et al 2004;Kirk et al 2008). A teleomorph connection has been established for P. concavum in Discohainesia Nannf.…”

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confidence: 99%

“…in the family Dermateaceae, order Helotiales, while P. acerinum is only known the anamorph (Rossman et al 2004). Pilidium species often produce two types of conidiomata: black pycnidia, the most commonly encountered in nature, and also sporodochia, commonly seen in pure cultures (Palm 1991;Rossman et al 2004). The two conidiomatal types of P. concavum had been considered as two distinct species.…”

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confidence: 99%

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Fruit rot on olive caused by Pilidium concavum in Iran

Arzanlou

Jafary

2013

Australasian Plant Dis. Notes

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A new fruit rot disease was observed on olive fruits (Olea europaea L.) in the orchards of the Tarom region (Zanjan province, Northwest Iran). The symptoms of the disease appeared as water-soaked lesions on fruits, later becoming brownish and coalescing, which resulted in rotten and mummified fruits. Isolation was made from symptomatic tissues. The causal agent of the disease was identified as Pilidium concavum based on morphological and cultural characteristics. The identity of the species was further confirmed using sequence data from ITS-rDNA region. The ITS sequence generated in this study showed 100 % homology with the sequence data for P. concavum from GenBank. Koch's postulates were fulfilled by inoculation of surfacesterilized fresh olive fruits under laboratory conditions using a spore suspension. This is the first report of the occurrence and pathogenicity of P. concavum on olive fruits anywhere in the world.

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Bristle-like fungal colonizers on the stone walls of the Kitora and Takamatsuzuka Tumuli are identified as Kendrickiella phycomyces

Kiyuna¹,

An²,

Kigawa

et al. 2012

Mycoscience

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The coelomycetous genera Chaetomella and Pilidium represent a newly discovered lineage of inoperculate discomycetes

Cited by 41 publications

References 20 publications

First report of Pilidium concavum causing tan‐brown rot in strawberry fruits in Brazil

First report of Pilidium concavum causing tan‐brown rot in strawberry fruits in Brazil

Fruit rot on olive caused by Pilidium concavum in Iran

Bristle-like fungal colonizers on the stone walls of the Kitora and Takamatsuzuka Tumuli are identified as Kendrickiella phycomyces

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