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1. Restoring the iconic Ulmus americana to urban landscapes: Early tree growth responds to aboveground conditions

Author:
Danielle Mikolajewski; Vince D’Amico; Nancy F. Sonti; Cornelia C. Pinchot; Charles E. Flower; Lara A. Roman; Tara L.E. Trammell
Source:
Urban forestry & urban greening 2022 v.74 pp. 127675
ISSN:
1618-8667
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ulmus americana; carbon dioxide; chlorophyll; climate; clones; deer; fossil fuels; heavy metals; mortality; ozone; photosynthesis; surface area; tree growth; trees; urban forestry; urbanization; water supply; wildlife;     Show all 20 Subjects
Abstract:
... Native trees provide a range of benefits, from supporting native wildlife to climate regulation, and many urban natural resource managers prioritize native tree planting and restoration. Ulmus americana (American elm) was once widely planted in American cities but has been decimated by Dutch elm disease (DED; Ophiostoma ulmi). Our study evaluated U. americana establishment and growth across urban ...
DOI:
10.1016/j.ufug.2022.127675

2. The mitochondrial genome of Ophiostoma himal-ulmi and comparison with other fungi causing Dutch elm disease

Author:
Alvan Wai; Georg Hausner
Source:
Canadian journal of microbiology 2021 v.67 no.8 pp. 584-598
ISSN:
1480-3275
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ophiostoma novo-ulmi; introns; mitochondrial genome; Himalayan region;     Show all 6 Subjects
Abstract:
... The mitochondrial genome of Ophiostoma himal-ulmi, a species endemic to the Western Himalayas and one of the fungi that cause Dutch elm disease, has been sequenced and characterized. The mitochondrial genome was compared with other available genomes for members of the Ophiostomatales, including other agents of Dutch elm disease (Ophiostoma ulmi, Ophiostoma novo-ulmi subspecies novo-ulmi, and Ophio ...
DOI:
10.1139/cjm-2020-0589

3. Identification and characterization of the causal agent of Dutch elm disease in Croatia

Author:
Zorana Katanić; Ljiljana Krstin; Marin Ježić; Bruno Ćaleta; Paula Stančin; Marko Zebec; Mirna Ćurković-Perica
Source:
European journal of forest research 2020 v.139 no.5 pp. 805-815
ISSN:
1612-4669
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ophiostoma novo-ulmi; Ulmus glabra; Ulmus minor; disease prevalence; forests; fungal wilt; genes; host plants; hybridization; hybrids; pathogen characterization; pathogen identification; plant pathogenic fungi; population distribution; population structure; restriction fragment length polymorphism; sequence analysis; virulence; Croatia;     Show all 21 Subjects
Abstract:
... Dutch elm disease (DED) is a vascular wilt disease of elms caused by ascomycetous fungi of the genus Ophiostoma. The initial DED pandemic was caused by Ophiostoma ulmi, a relatively weak pathogen when compared to Ophiostoma novo-ulmi, the causal agent of the current pandemic. The latter has been spreading as two distinct subspecies: O. novo-ulmi ssp. novo-ulmi and O. novo-ulmi ssp. americana. Weak ...
DOI:
10.1007/s10342-020-01286-4

4. Is there evidence for post‐epidemic attenuation in the Dutch elm disease pathogen Ophiostoma novo‐ulmi?

Author:
C. M. Brasier; J. F. Webber
Source:
Plant pathology 2019 v.68 no.5 pp. 921-929
ISSN:
0032-0862
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ophiostoma novo-ulmi; Ulmus hollandica; Ulmus procera; genes; pandemic; viruses; United Kingdom;     Show all 9 Subjects
Abstract:
... The first pandemic of Dutch elm disease (DED) in Europe and North America caused by the introduced Ophiostoma ulmi began in the early 1900s but declined unexpectedly in Europe from the 1930s onwards after killing 30–40% of the elms. Later a second pandemic caused by the much more aggressive Ophiostoma novo‐ulmi spread across the same areas and by 1990 most of Britain's c. 30 million mature elms ha ...
DOI:
10.1111/ppa.13022

5. A report of dieback and mortality of elm trees suspected of Dutch elm disease in Hokkaido, Japan

Author:
Toshizumi Miyamoto; Hayato Masuya; Akio Koizumi; Takehiro Yamaguchi; Makoto Ishihara; Yuichi Yamaoka; Izumi Okane; Mariko Shizuki; Masahiro Ohara
Source:
Journal of forest research 2019 v.24 no.6 pp. 396-400
ISSN:
1610-7403
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Japan; Scolytus; Ulmus davidiana; bark; bark beetles; dieback; disease transmission; forests; fungi; mortality; research; tree age; wood;     Show all 15 Subjects
Abstract:
... A sudden, increased mortality of Ulmus davidiana var. japonica (Japanese elm) trees occurred during 2014–2016 in Sapporo City, Hokkaido, Japan. The dead and dying trees were concentrated within a narrow area (maximum distance of approximately 300 m). The estimated affected tree age was 36–186 years. A previous large-scale outbreak of elm dieback in Hokkaido had been reported in the 1950s. At that ...
DOI:
10.1080/13416979.2019.1679942

6. Feeding by Scolytus bark beetles to test for differently susceptible elm varieties

Author:
O. Anderbrant; J. K. Yuvaraj; J. A. Martin; L. Gil; J. Witzell
Source:
Journal of applied entomology 2017 v.141 no.5 pp. 417-420
ISSN:
0931-2048
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ophiostoma; Scolytus multistriatus; Ulmus glabra; bark beetles; bioassays; branches; breeding programs; feeding preferences; fungi; genotype; risk; spores; trees; Europe; North America;     Show all 17 Subjects
Abstract:
... Dutch elm disease (DED), caused by the fungi Ophiostoma ulmi and O. novo‐ulmi, has reduced elm populations severely in Europe and North America. Breeding programmes are in action to find less susceptible elm varieties suitable for re‐establishing elm stands. Bark beetles, mainly Scolytus spp., are the only known natural vectors of DED. During twig feeding, beetles transfer Ophiostoma spores to hea ...
DOI:
10.1111/jen.12354

7. Diversity in yeast–mycelium dimorphism response of the Dutch elm disease pathogens: the inoculum size effect

Author:
Marie-Ève Wedge; Erika Sayuri Naruzawa; Martha Nigg; Louis Bernier
Source:
Canadian journal of microbiology 2016 v.62 no.6 pp. 525-529
ISSN:
1480-3275
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ophiostoma; dimorphism; inoculum; mycelium; pathogens; phylogeny; quorum sensing; signal transduction; spores; yeasts;     Show all 12 Subjects
Abstract:
... Dutch elm disease (DED) is caused by the dimorphic fungi Ophiostoma ulmi, Ophiostoma novo-ulmi, and Ophiostoma himal-ulmi. A cell population density-dependent phenomenon related to quorum sensing was previously shown to affect the reversible transition from yeast-like to mycelial growth in liquid shake cultures of O. novo-ulmi NRRL 6404. Since the response to external stimuli often varies among DE ...
DOI:
10.1139/cjm-2015-0795

8. Vessel length and conductivity of Ulmus branches: ontogenetic changes and relation to resistance to Dutch elm disease

Author:
J. A. Martín; A. Solla; M. Ruiz-Villar; L. Gil
Source:
Trees 2013 v.27 no.5 pp. 1239-1248
ISSN:
0931-1890
Subject:
Ceratocystis ulmi,   etc   ; Ulmus minor; branches; clones; juvenile wood; pathogens;     Show all 6 Subjects
Abstract:
... Changes in age of the hydraulic architecture of Ulmus minor and U. minor × U. pumila juvenile wood were studied and related to tolerance to Dutch elm disease (DED). The xylem vessel dimensions and the conductivity to air of 2- to 7-year-old branches were analyzed and quantified. No obvious differences in vessel length distribution and conductivity were found to explain differences in DED tolerance ...
DOI:
10.1007/s00468-013-0872-2

9. Genomic comparisons of the laurel wilt pathogen, Raffaelea lauricola, and related tree pathogens highlight an arsenal of pathogenicity related genes

Author:
Jorge R. Ibarra Caballero; Jongbum Jeon; Yong-Hwan Lee; Stephen Fraedrich; Ned B. Klopfenstein; Mee-Sook Kim; Jane E. Stewart
Source:
Fungal genetics and biology 2019 pp. -
ISSN:
1087-1845
Subject:
Ceratocystis ulmi,   etc   ; ABC transporters; Dutch elm disease; Grosmannia clavigera; Ophiostoma novo-ulmi; Ophiostoma piceae; Persea borbonia; Quercus; Raffaelea lauricola; Raffaelea quercivora; Ulmus hollandica; Xyleborus glabratus; conifers; cytochrome P-450; fungi; genes; genomics; hosts; laurel wilt; lumber; mortality; neutralization; pathogens; protein secretion; proteinases; saprophytes; secondary metabolites; symbionts; trees; virulence; wood degradation; Japan; Korean Peninsula; Southeastern United States;     Show all 34 Subjects
Abstract:
... Raffaelea lauricola is an invasive fungal pathogen and symbiont of the redbay ambrosia beetle (Xyleborus glabratus) that has caused widespread mortality to redbay (Persea borbonia) and other Lauraceae species in the southeastern USA. We compare two genomes of R. lauricola (C2646 and RL570) to seven other related Ophiostomatales species including R. aguacate (nonpathogenic close relative of R. laur ...
DOI:
10.1016/j.fgb.2019.01.012

10. Urban trees worldwide have low species and genetic diversity, posing high risks of tree loss as stresses from climate change increase

Author:
V. I. Lohr; D. Kendal; C. Dobbs
Source:
Acta horticulturae 2016 no.1108 pp. 263-270
ISSN:
0567-7572
Subject:
Ceratocystis ulmi,   etc   ; Dutch elm disease; Ulmus americana; cities; climate change; death; environmental factors; genetic variation; heat island; humans; inventories; landscapes; planting; risk; seeds; street trees; temperature;     Show all 17 Subjects
Abstract:
... Popular trees that are known to grow well in a region are often the first ones people choose to plant in the landscapes that surround them. Historically, this has resulted in over-planting particular species, such as the American elm (Ulmus americana). This species had little genetic variation in its natural resistance to Dutch elm disease (Ophiostoma ulmi), leading to the death of most American e ...
DOI:
10.17660/ActaHortic.2016.1108.34

11. Morphological and molecular characterisation of Geosmithia species on European elms

Author:
Alessia L. Pepori; Miroslav Kolařík; Priscilla P. Bettini; Anna Maria Vettraino; Alberto Santini
Source:
Fungal biology 2015 v.119 no.11 pp. 1063-1074
ISSN:
1878-6146
Subject:
Ceratocystis ulmi,   etc   ; Coleoptera; Dutch elm disease; Ophiostoma; Ulmus; bark beetles; fungi; genes; habitats; internal transcribed spacers; new species; phylogeny; tubulin; Europe;     Show all 14 Subjects
Abstract:
... Species of the genus Geosmithia are associated with insect species, mainly bark beetles. On Ulmus spp., the same beetles are also vectors of Ophiostoma ulmi s.l., the agent of Dutch elm disease (DED), a worldwide elm disease. Aim of this paper is to characterise Geosmithia species associated with elms and/or elm beetles in Europe. Seventy-two strains representative of all morphological taxonomic u ...
DOI:
10.1016/j.funbio.2015.08.003

12. Nutritional niche overlap potentiates the use of endophytes in biocontrol of a tree disease

Author:
Kathrin Blumenstein; Benedicte R. Albrectsen; Juan A. Martín; Malin Hultberg; Thomas N. Sieber; Marjo Helander; Johanna Witzell
Source:
BioControl 2015 v.60 no.5 pp. 655-667
ISSN:
1386-6141
Subject:
Ceratocystis ulmi,   etc   ; Ophiostoma; Ulmus; biological control; biological control agents; carbon; endophytes; fungi; host plants; microarray technology; pathogens; phenotype; strains; trees; virulence;     Show all 15 Subjects
Abstract:
... Asymptomatic endophytic fungi are often regarded as potent biocontrol agents in plants, but the competitive interactions between endophytes and other microbes within the same host plant are poorly understood. We tested a hypothesis that as compared to asymptomatic endophytes, an aggressive pathogen inhabiting the same host is able to utilize carbon substrates more efficiently. Using phenotype micr ...
DOI:
10.1007/s10526-015-9668-1

13. A rapid virulence assay for the Dutch elm disease fungus Ophiostoma novo‐ulmi by inoculation of apple (Malus × domestica ‘Golden Delicious’) fruits

Author:
K. V. Plourde; L. Bernier
Source:
Plant pathology 2014 v.63 no.5 pp. 1078-1085
ISSN:
0032-0862
Subject:
Ceratocystis ulmi,   etc   ; Ophiostoma; Ulmus; agar; apples; fruits; fungi; mutants; mycelium; saplings; virulence;     Show all 11 Subjects
Abstract:
... Large‐scale virulence tests using trees or saplings are expensive, time‐consuming and require a considerable amount of space. The suitability of using ‘Golden Delicious’ apples as a rapid screen for identifying Ophiostoma novo‐ulmi transformants with reduced virulence was thus evaluated. When a collection of O. novo‐ulmi field isolates belonging to subspecies novo‐ulmi or americana was inoculated ...
DOI:
10.1111/ppa.12177

14. Unexpected connections between residential urban forest diversity and vulnerability to two invasive beetles

Author:
Adam Berland; Grant P. Elliott
Source:
Landscape ecology 2014 v.29 no.1 pp. 141-152
ISSN:
0921-2973
Subject:
Ceratocystis ulmi,   etc   ; Agrilus planipennis; Anoplophora glabripennis; cities; forests; host specificity; pests; trees; Minnesota;     Show all 9 Subjects
Abstract:
... Invasive pests pose a threat to the key environmental and social benefits provided by urban forests, and diverse tree planting is a primary management strategy for reducing pest vulnerability. For example, past urban forest losses to Dutch elm disease (DED) prompted municipal foresters to emphasize diversification, but it is unclear whether residential properties developed after the peak DED outbr ...
DOI:
10.1007/s10980-013-9953-2

15. The Role of Hybridization in the Evolution and Emergence of New Fungal Plant Pathogens

Author:
Stukenbrock Eva H.
Source:
Phytopathology 2016 v.106 no.2 pp. 104-112
ISSN:
0031-949X
Subject:
Ceratocystis ulmi,   etc   ; Blumeria graminis; Dutch elm disease; Melampsora; allopatry; backcrossing; data collection; evolution; genetics; genome; grasses; hybrids; introgression; mycology; plant pathogenic fungi; powdery mildew; trade; trees; triticale;     Show all 19 Subjects
Abstract:
... Hybridization in fungi has recently been recognized as a major force in the generation of new fungal plant pathogens. These include the grass pathogen Zymoseptoria pseudotritici and the powdery mildew pathogen Blumeria graminis triticale of triticale. Hybridization also plays an important role in the transfer of genetic material between species. This process is termed introgressive hybridization a ...
DOI:
10.1094/PHYTO-08-15-0184-RVW

16. Heritability of Ulmus minor resistance to Dutch elm disease and its relationship to vessel size, but not to xylem vulnerability to drought

Author:
M. Venturas; R. López; J. A. Martín; A. Gascó; L. Gil
Source:
Plant pathology 2014 v.63 no.3 pp. 500-509
ISSN:
0032-0862
Subject:
Ceratocystis ulmi,   etc   ; Ophiostoma; Ulmus minor; crossing; drought; heritability; hydraulic conductivity; pathogens; progeny; stomatal conductance; trees; vascular wilt; water stress; wilting; xylem vessels;     Show all 15 Subjects
Abstract:
... Dutch elm disease (DED) is a vascular wilt disease that causes the occlusion and cavitation of xylem vessels. Therefore, it is hypothesized that those elms that are less vulnerable to cavitation by drought might be more resistant to DED. To test this hypothesis, the relationship between xylem vulnerability to cavitation and susceptibility to DED was examined in progenies of crosses between suscept ...
DOI:
10.1111/ppa.12115

17. Urnula sp., an Endophyte of Dicksonia antarctica, Making a Fragrant Mixture of Biologically Active Volatile Organic Compounds

Author:
Gary Strobel; Amy Ericksen; Joe Sears; Jie Xie; Brad Geary; Bryan Blatt
Source:
Microbial ecology 2017 v.74 no.2 pp. 312-321
ISSN:
0095-3628
Subject:
Ceratocystis ulmi,   etc   ; Botrytis cinerea; Dicksonia; Fusarium solani; Pythium ultimum; Thanatephorus cucumeris; Urnula; agar; anamorphs; antimicrobial properties; beet pulp; bioassays; bioreactors; endophytes; fungi; gas chromatography-mass spectrometry; internal transcribed spacers; microbial growth; odors; peaches; pies; scanning electron microscopy; spores; stainless steel; vanillin; volatile organic compounds; wastes;     Show all 27 Subjects
Abstract:
... Urnula sp. was isolated as an endophyte of Dicksonia antarctica and identified primarily on the basis of its ITS sequence and morphological features. The anamorphic state of the fungus appeared as a hyphomyceteous-like fungus as based on its features in culture and scanning electron microscopy examination of its spores. On potato dextrose agar (PDA), the organism makes a characteristic fragrance r ...
DOI:
10.1007/s00248-017-0947-5

18. Rose rosette disease and the impacts on propagation

Author:
Charles W. Martin
Source:
Acta horticulturae 2014 no.1055 pp. 319-321
ISSN:
0567-7572
Subject:
Ceratocystis ulmi,   etc   ; Agrilus planipennis; Cryphonectria parasitica; Popillia japonica; Rosa; business enterprises; crops; death; downy mildew; horticulture; landscapes; moths; pests; plant industry; rose rosette disease;     Show all 15 Subjects
Abstract:
... In order to have our businesses be successful forces in the plant industry, we need to be attentive to our environment and potential pests that might destroy our crops and landscapes. Throughout history we have witnessed many pests that have forever changed our thinking and our practices in horticulture. Pests like Japanese beetle, gypsy moths, emerald ash borer, Dutch elm disease, chestnut blight ...

19. Rapid differentiation of Ophiostoma ulmi and Ophiostoma novo-ulmi isolates by matrix-assisted-laser-desorption/ionization time-of-flight/time-of-flight mass spectrometry

Author:
Huang, C.; Jeng, R.; Sain, M.; Hubbes, M.; Dumas, M.T.
Source:
Forest pathology 2010 v.40 no.1 pp. 1-6
ISSN:
1437-4781
Subject:
Ceratocystis ulmi,   etc   ; mass spectrometry; pathogen identification; proteins; spores; yeasts;     Show all 6 Subjects
Abstract:
... The intact yeast phase spores of Ophiostoma ulmi and O. novo-ulmi isolates were analysed by matrix-assisted-laser-desorption/ionization time-of-flight/time-of-flight mass spectrometry. The results clearly showed that isolates of O. ulmi and O. novo-ulmi have different mass peak profiles. The specific mass in m/z may vary slightly. One of the peaks from m/z 7623 to 7630 dominated (in high intensity ...
DOI:
10.1111/j.1439-0329.2009.00597.x

20. Dutch elm Disease and the Habitat of Endangered Rosalia Longicorn Rosalia alpina (L.): A Conservation Paradox?

Author:
Bartnik Czesław; Michalcewicz Jakub; Ciach Michał
Source:
Polish Journal of Ecology 2015 v.63 no.3 pp. 440-447
ISSN:
1505-2249
Subject:
Ceratocystis ulmi,   etc   ; DNA; Dutch elm disease; Rosalia; Ulmus; breeding; dead wood; death; dieback; fungi; habitats; host plants; nucleotide sequences; pathogens; sequence analysis; tree mortality; trees; wood; Central European region; Poland;     Show all 20 Subjects
Abstract:
... In central Europe, the endangered Rosalia longicorn Rosalia alpina (L.) has rarely been observed to develop in the wood of elms Ulmus sp.; however, this beetle has recently expanded into habitats formed by elms. The factors driving these changes are unknown in detail, but a potential one is the increasing amount of breeding material, namely, dead elm wood. Dutch elm disease, caused by the fungi Op ...
DOI:
10.3161/15052249PJE2015.63.3.013