Glomerella truncata sp. nov., the teleomorph of Colletotrichum truncatum

Armstrong-Cho, Cheryl; Banniza, Sabine

doi:10.1016/j.mycres.2006.06.002

Cited by 39 publications

(23 citation statements)

References 18 publications

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“…Unlike other fungal species, fungi in the genus Colletotrichum predominantly reproduce asexually, and sexual reproduction is rare in the field (O'Connell et al ., ). The reference isolate CT‐30 (race 0) used in the study is cross‐fertile with isolate CT‐21 (race 1) in the laboratory on sterile lentil stems (Armstrong‐Cho & Banniza, ). We generated ascospore‐derived progeny isolates from an in vitro ‐induced cross between these two isolates.…”

Section: Resultsmentioning

confidence: 99%

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Genetic map‐guided genome assembly reveals a virulence‐governing minichromosome in the lentil anthracnose pathogen Colletotrichum lentis

et al. 2018

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Colletotrichum lentis causes anthracnose, which is a serious disease on lentil and can account for up to 70% crop loss. Two pathogenic races, 0 and 1, have been described in the C. lentis population from lentil. To unravel the genetic control of virulence, an isolate of the virulent race 0 was sequenced at 1481-fold genomic coverage. The 56.10-Mb genome assembly consists of 50 scaffolds with N scaffold length of 4.89 Mb. A total of 11 436 protein-coding gene models was predicted in the genome with 237 coding candidate effectors, 43 secondary metabolite biosynthetic enzymes and 229 carbohydrate-active enzymes (CAZymes), suggesting a contraction of the virulence gene repertoire in C. lentis. Scaffolds were assigned to 10 core and two minichromosomes using a population (race 0 × race 1, n = 94 progeny isolates) sequencing-based, high-density (14 312 single nucleotide polymorphisms) genetic map. Composite interval mapping revealed a single quantitative trait locus (QTL), qClVIR-11, located on minichromosome 11, explaining 85% of the variability in virulence of the C. lentis population. The QTL covers a physical distance of 0.84 Mb with 98 genes, including seven candidate effector and two secondary metabolite genes. Taken together, the study provides genetic and physical evidence for the existence of a minichromosome controlling the C. lentis virulence on lentil.

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Section: Resultsmentioning

confidence: 99%

“…A biparental ascospore‐derived C. lentis population was generated in vitro by mating race 0 isolate CT‐30 with race 1 isolate CT‐21 following the procedure developed by Armstrong‐Cho & Banniza (). In short, stems of senescent plants of lentil ( Lens culinaris Medik.)…”

Section: Methodsmentioning

confidence: 99%

Genetic map‐guided genome assembly reveals a virulence‐governing minichromosome in the lentil anthracnose pathogen Colletotrichum lentis

et al. 2018

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“…Von Arx & Müller (1954) carried out a global revision using morphological characters and Uecker (1994) completed an ontogenetic study of one C. gloeosporioides isolate. We know that at least some strains of most of the principal species aggregates can undergo meiosis, including the C. acutatum group (Guerber & Correll 2001, Guerber et al 2003, Marcelino et al 2008), the C. destructivum group (Armstrong-Cho & Banniza 2006, linked to an anamorph misidentified as C. truncatum ), the C. orbiculare group (Rodriguez-Guerra et al 2005) and the C. graminicola group (Crouch et al 2009). …”

Section: Discussionmentioning

confidence: 99%

The Colletotrichum boninense species complex

Damm¹,

Cannon²,

Woudenberg³

et al. 2012

Studies in Mycology

358

328

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Although only recently described, Colletotrichum boninense is well established in literature as an anthracnose pathogen or endophyte of a diverse range of host plants worldwide. It is especially prominent on members of Amaryllidaceae, Orchidaceae, Proteaceae and Solanaceae. Reports from literature and preliminary studies using ITS sequence data indicated that C. boninense represents a species complex. A multilocus molecular phylogenetic analysis (ITS, ACT, TUB2, CHS-1, GAPDH, HIS3, CAL) of 86 strains previously identified as C. boninense and other related strains revealed 18 clades. These clades are recognised here as separate species, including C. boninense s. str., C. hippeastri, C. karstii and 12 previously undescribed species, C. annellatum, C. beeveri, C. brassicicola, C. brasiliense, C. colombiense, C. constrictum, C. cymbidiicola, C. dacrycarpi, C. novae-zelandiae, C. oncidii, C. parsonsiae and C. torulosum. Seven of the new species are only known from New Zealand, perhaps reflecting a sampling bias. The new combination C. phyllanthi was made, and C. dracaenae Petch was epitypified and the name replaced with C. petchii. Typical for species of the C. boninense species complex are the conidiogenous cells with rather prominent periclinal thickening that also sometimes extend to form a new conidiogenous locus or annellations as well as conidia that have a prominent basal scar. Many species in the C. boninense complex form teleomorphs in culture.Taxonomic novelties:New combination - Colletotrichum phyllanthi (H. Surendranath Pai) Damm, P.F. Cannon & Crous. Name replacement - C. petchii Damm, P.F. Cannon & Crous. New species - C. annellatum Damm, P.F. Cannon & Crous, C. beeveri Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. brassicicola Damm, P.F. Cannon & Crous, C. brasiliense Damm, P.F. Cannon, Crous & Massola, C. colombiense Damm, P.F. Cannon, Crous, C. constrictum Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. cymbidiicola Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. dacrycarpi Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. novae-zelandiae Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. oncidii Damm, P.F. Cannon & Crous, C. parsonsiae Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir, C. torulosum Damm, P.F. Cannon, Crous, P.R. Johnst. & B. Weir. Typifications: Epitypifications - C. dracaenae Petch.

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“…The ascomycetous fungus Colletotrichum, members of which are anamorphic Glomerella species (Sutton, 1992;Armstrong-Cho and Banniza, 2006;Pfenning et al, 2007), is one of the most economically important complexes of plant pathogens, causing post-harvest rots, anthracnose, and blights of aerial plant parts. The symptoms typically appear as small to large, dark-colored spots or slightly sunken lesions on the foliage, stems or fruits of a wide range of tropical, subtropical and temperate crops (Bailey and Jeger, 1992).…”

Section: Introductionmentioning

confidence: 99%

Light, temperature, and aging dependent vegetative growth and sporulation of Colletotrichum gloeosporioides on different culture media

Soltani¹,

Haghighi²,

Nazeri³

2014

J. Med. Plants Res.

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The fungal organism Colletotrichum gloeosporioides is the causative agent of anthracnose disease of Citrus fruits. It is recently introduced as a potential producer of anticancer metabolite paclitaxel. Here, we introduce the optimal conditions for growth and sporulation of C. gloeosporioides. We have considered four fungal culture media, that is potato dextrose agar (PDA), carnation leaf agar (CLA), potato carrot agar (PCA) and water agar (WA), based on which sporulation inducers like Watman or Fabriano filter papers could be added, and evaluated both for vegetative growth and sporulation. Three light regimens, i.e. continuous light, 16/8 hrs light/darkness, and continuous darkness were applied in combination with the culture media. All experiments were tracked on 7th, 15th, 21st, and 30th day after incubation. At 28°C, PDA and PCA culture media, under continuous light, provided the best condition for C. gloeosporioides maximal growth. Decreasing light periods decreased the fungal growth. Furthermore, fungal sporulation showed a high dependence on light, temperature and culture medium in use. Under 16/8 h light/darkness interval at the same temperature C. gloeosporioides sporulation was at its maximum on Fabriano paper placed on PDA medium. At a lower temperature, that is 22°C, C. gloeosporioides sporulation on the same culture media was highly defected. Furthermore, aging generally increased the fungal sporulation.

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Glomerella truncata sp. nov., the teleomorph of Colletotrichum truncatum

Cited by 39 publications

References 18 publications

Genetic map‐guided genome assembly reveals a virulence‐governing minichromosome in the lentil anthracnose pathogen Colletotrichum lentis

Genetic map‐guided genome assembly reveals a virulence‐governing minichromosome in the lentil anthracnose pathogen Colletotrichum lentis

The Colletotrichum boninense species complex

Light, temperature, and aging dependent vegetative growth and sporulation of Colletotrichum gloeosporioides on different culture media

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