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You searched for: Publication year rev 7986-2014 Remove constraint Publication year rev: 7986-2014 Subject fungi Remove constraint Subject: fungi Subject Cryphonectria parasitica Remove constraint Subject: Cryphonectria parasitica Subject term Cryphonectria parasitica Remove constraint Subject term: Cryphonectria parasitica
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1. American chestnut sprout dynamics

Author:
Stevens, D.L.; Soltau, K.; Davelos Baines, A.; Jarosz, A.M.
Source:
Acta horticulturae 2014 v. no.1019 pp. 223-227
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; chestnuts; death; fungi; root crown; stem elongation; stems; tree and stand measurements; trees; Michigan; Wisconsin
Abstract:
... American chestnut (Castanea dentata) populations have been decimated over the last 100 years by the chestnut blight fungus Cryphonectria parasitica. The species can produce prolific numbers of root collar sprouts and often, after the death of the main stem, a number of root sprouts result. The effects of three treatments were compared to assess sprout growth and sprout number among seven American ...

2. Application of biological control of chestnut blight on a nationwide scale in Greece: results and prospects

Author:
S. Diamandis; C. Perlerou; Z. Nakopoulou; V. Christopoulos; E. Topalidou; G. Tziros
Source:
Acta horticulturae 2014 no.1043 pp. 23-34
ISSN:
0567-7572
Subject:
Castanea; Cryphonectria parasitica; biological control; coppicing; forests; fungi; horticulture; human resources; inoculum; orchards; silvicultural practices; tree age; viruses; Greece
Abstract:
... Since 1963 when chestnut blight was recorded for the first time in Greece, the disease has spread into all 29 chestnut growing prefectures. As a result the national, annual chestnut production was reduced from 18,000 tons in the 1960s to 11,000 tons in 2005. A project for the application of biological control on a nationwide scale was funded and implemented during the period 2007-2009. Hypovirulen ...

3. Biological control of chestnut blight in Portugal

Author:
L. M. Martins; J. P. Castro; M. E. Gouveia
Source:
Acta horticulturae 2014 no.1043 pp. 51-56
ISSN:
0567-7572
Subject:
Castanea sativa; Cryphonectria parasitica; biological control; disease control; founder effect; fungi; health status; pathogens; plant health; population structure; quarantine; selfing; soil management; soil types; tree age; trees; virulence; Portugal
Abstract:
... Hypovirulence is a specific biological control method of chestnut blight, a lethal disease of American and European chestnut. The causal pathogen of chestnut blight is Cryphonectria parasitica, a fungus of Asian origin and an A2 quarantine organism in Europe. The disease has been reported since 1990 in Portugal, one of the last European countries where the pathogen was introduced. The chestnut bli ...

4. Castanea sativa: genotype-dependent recovery from chestnut blight

Author:
Marin Ježić; Ljiljana Krstin; Igor Poljak; Zlatko Liber; Marilena Idžojtić; Marija Jelić; Jasenka Meštrović; Marko Zebec; Mirna Ćurković-Perica
Source:
Tree genetics & genomes 2014 v.10 no.1 pp. 101-110
ISSN:
1614-2942
Subject:
Castanea sativa; Cryphonectria hypovirus 1; Cryphonectria parasitica; callus; forests; fungi; genotype; genotyping; necrosis; trees; virulence; Croatia
Abstract:
... In Lovran (coastal Croatia), a unique forest/orchard of evenly mixed grafted marrons and naturally growing nongrafted sweet chestnut trees exists. This old chestnut population has been devastated by chestnut blight, caused by an aggressive introduced pathogenic fungus, Cryphonectria parasitica. However, initial observations indicated recovery of naturally growing chestnut trees in that area, media ...
DOI:
10.1007/s11295-013-0667-z

5. Chestnut Leaf Inoculation Assay as a Rapid Predictor of Blight Susceptibility

Author:
Newhouse Andrew E.; Spitzer Jesse E.; Maynard Charles A.; Powell William A.
Source:
Plant disease 2014 v.98 no.1 pp. 4-9
ISSN:
0191-2917
Subject:
Castanea dentata; Cryphonectria parasitica; blight; chestnuts; fungi; leaves; screening; seedlings; stems; trees; virulence; North America
Abstract:
... American chestnuts (Castanea dentata), effectively eliminated from eastern North America by chestnut blight in the twentieth century, are the subject of multiple restoration efforts. Screening individual trees (or tree types) for blight resistance is a critical step in all of these programs. Traditional screening involves inoculating stems of >3-year-old trees with the blight fungus (Cryphonectria ...
DOI:
10.1094/PDIS-01-13-0047-RE

6. Control of chestnut blight by the use of hypovirulent strains of the fungus Cryphonectria parasitica in northwestern Spain

Author:
P. Zamora; A.B. Martín; R. San Martín; P. Martínez-Álvarez; J.J. Diez
Source:
Biological control 2014 v.79 pp. 58-66
ISSN:
1049-9644
Subject:
Castanea; Cryphonectria parasitica; Hypovirus; biological control; field experimentation; fungi; orchards; stems; trees; virulence; viruses; Spain
Abstract:
... Chestnut blight is controlled in Europe by using Cryphonectria hypovirus CHV1, a non-encapsulated RNA virus. The chestnut blight fungus, Cryphonectria parasitica, is weakened by the virus, and healing tissue growth occurs in the host tree. Transmission of this cytoplasmic hypovirus is restricted by the incompatibility system of the fungus, so that the hypovirus can be transmitted only between isol ...
DOI:
10.1016/j.biocontrol.2014.08.005

7. Dynamics of Cryphonectria hypovirus Infection in Chestnut Blight Cankers

Author:
Bryner Sarah Franziska; Prospero Simone; Rigling Daniel
Source:
Phytopathology 2014 v.104 no.9 pp. 918-925
ISSN:
0031-949X
Subject:
Castanea sativa; Cryphonectria hypovirus 1; Cryphonectria parasitica; bark; biological control; coppicing; forests; fungi; immigration; mortality; plant diseases and disorders; plant viruses; seedling growth; seedlings; trees; virulence; virulent strains; viruses; Europe
Abstract:
... Virulent strains of the chestnut blight fungus Cryphonectria parasitica cause lethal bark cankers on chestnut trees. Infection of C. parasitica with Cryphonectria hypovirus 1 in Europe biologically controls this disease, leading to nonlethal and inactive cankers. Unexpectedly, virus-free C. parasitica strains have been isolated from inactive cankers. In this study, we compared the virulence of vir ...
DOI:
10.1094/PHYTO-03-13-0069-R

8. Ectomycorrhizal inoculum potential of northeastern US forest soils for American chestnut restoration: results from field and laboratory bioassays

Author:
Kristopher M. Dulmer; Stephen D. LeDuc; Thomas R. Horton
Source:
Mycorrhiza 2014 v.24 no.1 pp. 65-74
ISSN:
0940-6360
Subject:
Castanea dentata; Cenococcum geophilum; Cryphonectria parasitica; Laccaria laccata; Quercus rubra; bioassays; ectomycorrhizae; forest soils; fungi; hosts; inoculum; root tips; seedlings; trees; United States
Abstract:
... American chestnut (Castanea dentata) was once a dominant overstory tree in eastern USA but was decimated by chestnut blight (Cryphonectria parasitica). Blight-resistant chestnut is being developed as part of a concerted restoration effort to bring this heritage tree back. Here, we evaluate the potential of field soils in the northern portion of the chestnut's former range to provide ectomycorrhiza ...
DOI:
10.1007/s00572-013-0514-y
PubMed:
23857395

9. Effect of spore concentration on the establishment of cytoplasmic hypovirulent (HV), transgenic HV, and virulent isolates of Cryphonectria parasitica, the chestnut blight fungus

Author:
Kenaley, S.C.; Double, M.L.; MacDonald, W.L.
Source:
Acta horticulturae 2014 no.1019 pp. 165-171
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria hypovirus 1; Cryphonectria parasitica; ascospores; bark; biological control; complementary DNA; conidia; fungi; genetically modified organisms; mycelium; sporulation; virulence
Abstract:
... Transgenic hypovirulent (HV) strains of Cryphonectria parasitica engineered to contain a complimentary DNA (cDNA) copy of Cryphonectria hypovirus 1 (CHV1) may provide an efficient mechanism to introduce hypoviruses into genetically diverse populations of the chestnut blight fungus. However, elucidating the factors that influence infection of American chestnut (Castanea dentate) and the initiation ...

10. Effects of branch size and pathogen virulence on canker development and branch mortality

Author:
Davelos Baines, A.; Fulbright, D.W.; Jarosz, A.M.
Source:
Acta horticulturae 2014 no.1019 pp. 23-29
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; biological control; branches; chestnuts; double-stranded RNA; fungi; mortality; pathogens; trees; virulence; Michigan
Abstract:
... Effective biological control using dsRNA requires that chestnuts infected with dsRNA-containing strains of the chestnut blight fungus (Cryphonectria parasitica) have higher survival than trees infected with dsRNA-free strains. The influence of branch size on canker development and branch mortality was investigated in an American chestnut stand in Michigan. Comparisons among cankers initiated natur ...

11. First Report of Chestnut Blight Caused by Cryphonectria parasitica in a Chestnut Orchard in Andalusia (Southern Spain)

Author:
Bascón J.; Castillo S.; Borrero C.; Orta S.; Gata A.; Avilés M.
Source:
Plant disease 2014 v.98 no.2 pp. 283
ISSN:
0191-2917
Subject:
Castanea sativa; Cryphonectria parasitica; agar; bark; crops; cultivars; death; early development; fungi; genetic databases; growth chambers; internal transcribed spacers; mycelium; orchards; pathogenicity; phloem; photoperiod; relative humidity; ribosomal DNA; seedling growth; seedlings; spores; sporulation; stems; trees; villages; Italy; Portugal; Spain
Abstract:
... In Europe, chestnut blight caused by Cryphonectria parasitica (Murrill) Barr was first seen in Italy in 1938 (1). In Spain, the disease was first detected in Basque country in 1947 and later in other areas of northern Spain: Galicia, León, Navarra, and Catalonia, and in Trás-os-Montes in Portugal (2). In November 2012, in an orchard (2 ha) in Almonaster la Real (Huelva, Spain), approximately 20 ca ...
DOI:
10.1094/PDIS-07-13-0759-PDN

12. First detection of the chestnut blight fungus on sessile oak in Ukraine

Author:
Radócz, L.; Görcsös, G.; Tarcali, G.; Irinyi, L.; Egyed, K.; Krochko, V.
Source:
Acta horticulturae 2014 no.1019 pp. 199-204
ISSN:
0567-7572
Subject:
Castanea dentata; Castanea sativa; Cryphonectria parasitica; Quercus petraea; bark; blight; chestnuts; fungi; mortality; pathogens; plant protection; trees; North America; Ukraine
Abstract:
... Cryphonectria parasitica is a severe invasive pathogen of both European sweet chestnut (Castanea sativa) and American chestnut (C. dentate). The pathogen spread throughout North America and Europe wherever chestnuts are grown. In addition to sweet chestnut, oak species (Quercus spp.) also are affected by the fungus. Bark samples were collected on 23 Apr. 2011 from the areas of Bobovyshche, Serednj ...

13. Functional Analysis of a Tannic-Acid-Inducible and Hypoviral-Regulated Small Heat-Shock Protein Hsp24 from the Chestnut Blight Fungus Cryphonectria parasitica

Author:
Baek Jin-Ho; Park Jin-Ah; Kim Jung-Mi; Oh Jung-Mi; Park Seung-Moon; Kim Dae-Hyuk
Source:
Molecular plant-microbe interactions 2014 v.27 no.1 pp. 56-65
ISSN:
0894-0282
Subject:
Cryphonectria parasitica; Hypovirus; bark; fungi; genes; growth retardation; heat shock proteins; heat stress; mutants; pigmentation; progeny; sporulation; tannins; virulence
Abstract:
... A small heat-shock protein gene, CpHsp24, of Cryphonectria parasitica was selected based on its expression pattern, which showed that it was tannic acid inducible and that its induction was severely hampered by a hypovirus. The predicted protein sequence of CpHsp24 consisted of a hallmark α-crystalline domain flanked by a variable N-terminal and a short C-terminal region. Disruption of CpHsp24 res ...
DOI:
10.1094/MPMI-08-13-0225-R

14. Fungi associated with hypovirulent cankers of differing ages on American chestnut

Author:
M. L. Double; M. R. Kolp; A. M. Jarosz; A. Davelos Baines; D. W. Fulbright; W. L. MacDonald
Source:
Acta horticulturae 2014 no.1043 pp. 57-65
ISSN:
0567-7572
Subject:
Botryosphaeria; Castanea dentata; Cryphonectria parasitica; Epicoccum nigrum; Hypovirus; Penicillium; Pestalotia; Trichoderma atroviride; bark; biological control; biological control agents; fungi; saprophytes; Wisconsin
Abstract:
... A research project to introduce hypoviruses and monitor their spread was initiated 20 years ago in an American chestnut (Castanea dentate) stand growing 900 km west of the natural range of the species in western Wisconsin (USA). During this period, CHV1 and CHV3 hypoviruses were deployed by treating cankers with the resident Cryphonectria parasitica strains that were hypovirus infected. Hypovirus ...

15. Genes associated with Cryphonectria parasitica vegetative incompatibility loci

Author:
Zhang, D.X.; Spiering, M.J.; Choi, G.H.; Nuss, D.L.
Source:
Acta horticulturae 2014 no.1019 pp. 257-261
ISSN:
0567-7572
Subject:
Cryphonectria parasitica; fungi; genes; genomics; heterokaryon; hyphae; loci; mycoviruses
Abstract:
... Genetic nonself recognition systems, termed heterokaryon or vegetative incompatibility (vic), operate in many filamentous fungi to regulate hyphal fusion between genetically dissimilar individuals. The vic system operating in the chestnut blight fungus, Cryphonectria parasitica, has been reported to restrict transmission of virulence-attenuating mycoviruses. A comparative genomics approach has bee ...

16. Genetic diversification of the chestnut blight fungus Cryphonectria parasitica and its associated hypovirus in Germany

Author:
Franziska S. Peters; Johanna Bußkamp; Simone Prospero; Daniel Rigling; Berthold Metzler
Source:
Fungal biology 2014 v.118 no.2 pp. 193-210
ISSN:
1878-6146
Subject:
Cryphonectria hypovirus 1; Cryphonectria parasitica; fungi; gene pool; genetic recombination; genetic techniques and protocols; haplotypes; microsatellite repeats; virulence; Germany; Italy
Abstract:
... Chestnut blight in south-western Germany was first reported in 1992 and is since expanding in distribution. Here we investigated the invasion history of Cryphonectria parasitica and its associated hypovirus. For this, we characterized 284 isolates collected between 1992 and 2012 for hypovirulence, vegetative compatibility (vc), mating type, and microsatellite haplotype. A total of 27 haplotypes an ...
DOI:
10.1016/j.funbio.2013.11.009

17. Growth performance and chestnut blight incidence (Cryphonectria parasitica) of backcrossed chestnut seedlings in surface mine restoration

Author:
Jenise M. Bauman; Carolyn Howes Keiffer; Brian C. McCarthy
Source:
New forests 2014 v.45 no.6 pp. 813-828
ISSN:
0169-4286
Subject:
Castanea dentata; Cryphonectria parasitica; anthropogenic activities; chestnuts; coal; discing; disease incidence; disease resistance; forests; fungi; growth performance; hardwood; indigenous species; mortality; planting; plows; ripping; seedlings; site preparation; soil; soil compaction; surface mining; Ohio
Abstract:
... Anthropogenic disturbances such as mining for coal have caused significant disturbance to the Appalachian forests of North America. Recovery of these disturbances is highly dependent on restoration methods that encourage natural succession. Unfortunately, current reclamation protocols have resulted in soil compaction and aggressive herbaceous groundcovers that impede the recovery of native trees. ...
DOI:
10.1007/s11056-014-9439-3

18. Leaf physiology and morphology of Castanea dentata (Marsh.) Borkh., Castanea mollissima Blume, and three backcross breeding generations planted in the southern Appalachians, USA

Author:
Benjamin O. Knapp; G. Geoff Wang; Stacy L. Clark; Lauren S. Pile; Scott E. Schlarbaum
Source:
New forests 2014 v.45 no.2 pp. 283-293
ISSN:
0169-4286
Subject:
Castanea dentata; Castanea mollissima; Cryphonectria parasitica; backcrossing; chestnuts; disease resistance; forest trees; fungi; growing season; hybrids; indigenous species; leaf area; leaves; pathogens; photosynthesis; planting; seedlings; threatened species; Appalachian region; United States
Abstract:
... Backcross breeding programs have been used to transfer disease resistance and other traits from one forest tree species to another in order to meet restoration objectives. Evaluating the field performance of such material is critical for determining the success of breeding programs. In eastern North America, The American Chestnut Foundation has a backcross breeding program that uses Chinese chestn ...
DOI:
10.1007/s11056-014-9408-x

19. Leveraging the genome sequence to identify genes with potential involvement in the virulence of Cryphonectria parasitica

Author:
Dawe, A.L.
Source:
Acta horticulturae 2014 no.1019 pp. 61-64
ISSN:
0567-7572
Subject:
Cryphonectria parasitica; aquaporins; fungi; genes; hyphae; nucleotide sequences; pathogenesis; virulence
Abstract:
... To study the role of specific genes whose products are required for the virulence of C. parasitica recently has been facilitated by the release of complete fungal genome information. Presented below are members of two conserved families of proteins that may have implications for understanding fungal pathogenesis. LysM proteins represent effectors that may be important for triggering plant defenses ...

20. Local spread of an exotic invader: using remote sensing and spatial analysis to document proliferation of the invasive Asian chestnut gall wasp

Author:
Graziosi, I.; Rieske, L.K.
Source:
Acta horticulturae 2014 no.1019 pp. 113-118
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; Dryocosmus kuriphilus; forests; fungi; geographic information systems; host plants; imagos; insects; meteorological data; overstory; prediction; remote sensing; species dispersal; topography; wind direction; Kentucky
Abstract:
... Remote sensing and spatial analysis represent key tools for describing species dispersal, species invasiveness and the invasability of a region, thus allowing predictions for developing mitigation strategies. American chestnut, Castanea dentata, was historically a dominant forest species in North America but occurs only sporadically today after its elimination from the overstory by the chestnut bl ...

21. New data of Cryphonectria parasitica (Murr.) barr population in Carpathian-basin

Author:
G. Gorcsos; G. Tarcali; L. Irinyi; L. Rodocz
Source:
Acta horticulturae 2014 no.1043 pp. 43-49
ISSN:
0567-7572
Subject:
ribosomal RNA; economics; phylogeny; trees; Castanea; Cryphonectria parasitica; genetic markers; animals; neoplasms; ribosomal DNA; internal transcribed spacers; ribosomes; introns; pathogens; intergenic DNA; cambium; branches; exons; translation (genetics); death; bark; fungi; Europe; North America
Abstract:
... The ascomycete fungus, Cryphonectria parasitica (Murr.) Barr, is an important fungal pathogen of chestnut in Europe and North America. The fungus grows into the bark up to the cambium, causing typical diffuse cancers and the death of distal parts of the trunks or branches. The pathogen kills the infected tree branches and the rapid death of the entire tree take place which is causing high environm ...

22. Prb1, a subtilisin‐like protease, is required for virulence and phenotypical traits in the chestnut blight fungus

Author:
Liming Shi; Ru Li; Suhuan Liao; Lingyun Bai; Qunfeng Lu; Baoshan Chen
Source:
FEMS microbiology letters 2014 v.359 no.1 pp. 26-33
ISSN:
0378-1097
Subject:
Cryphonectria parasitica; G-proteins; autophagy; enzyme activity; fungi; genes; hyphae; mutants; phenotype; proteinases; signal transduction; site-directed mutagenesis; sporulation; transcription (genetics); virulence
Abstract:
... Subtilisin‐like proteases are widely distributed and reported to be required for virulence in pathogenic fungi. In chestnut blight fungus Cryphonectria parasitica, prb1, encoding a putative subtilisin‐like protease, was expressed and recombinant Prb1 protein was shown to have a protease activity in vitro. prb1‐deleted mutants exhibited reduced total protease activity by 60%. The Δprb1 mutants show ...
DOI:
10.1111/1574-6968.12547

23. Transgenic American chestnuts show enhanced blight resistance and transmit the trait to T1 progeny

Author:
Andrew E. Newhouse; Linda D. Polin-McGuigan; Kathleen A. Baier; Kristia E.R. Valletta; William H. Rottmann; Timothy J. Tschaplinski; Charles A. Maynard; William A. Powell
Source:
Plant science 2014 v.228 pp. 88-97
ISSN:
0168-9452
Subject:
Agrobacterium; Castanea dentata; Castanea mollissima; Cryphonectria parasitica; Triticum aestivum; blight; chestnuts; disease resistance; fungi; genes; genetic variation; keystone species; leaves; oxalate oxidase; pathogens; plantlets; pollen; progeny; seedlings; transgenic plants; trees; wheat
Abstract:
... American chestnut (Castanea dentata) is a classic example of a native keystone species that was nearly eradicated by an introduced fungal pathogen. This report describes progress made toward producing a fully American chestnut tree with enhanced resistance to the blight fungus (Cryphonectria parasitica). The transgenic American chestnut ‘Darling4,’ produced through an Agrobacterium co-transformati ...
DOI:
10.1016/j.plantsci.2014.04.004

24. The feasibility of in situ conservation of European chestnut in Azerbaijan in the face of blight, Cryphonectria parasitica: a review

Author:
Wall, J.; Aghayeva, D.N.
Source:
Acta horticulturae 2014 no.1032 pp. 271-278
ISSN:
0567-7572
Subject:
Castanea sativa; Cryphonectria parasitica; biological control; blight; center of diversity; disease outbreaks; fungi; genetic resources; genetic variation; perennials; research projects; virulence; Azerbaijan; Europe
Abstract:
... The genetic diversity of European chestnut, Castanea sativa Mill., is undergoing rapid erosion in its center of diversity, eastern Turkey and the Caucasus, due to the arrival and spread of the fungal blight, Cryphonectria parasitica (Murill) Barr. In Azerbaijan, blight was first reported in 2008. Currently, blight has been observed in all regions of Azerbaijan where chestnut is grown. Typically, p ...

25. The first research plantings of third-generation, third-backcross American chestnut (Castanea dentate) in the southeastern United States

Author:
Clark, S.L.; Schlarbaum, S.E.; Hebard, F.V.
Source:
Acta horticulturae 2014 no.1019 pp. 39-44
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; Cyrtepistomus castaneus; Dryocosmus kuriphilus; Odocoileus virginianus; Phytophthora cinnamomi; backcrossing; browsing; chestnuts; deer; defoliation; field experimentation; forests; fungi; genetic transformation; national forests; pathogens; planting; root rot; sawflies; seedlings
Abstract:
... Production of American chestnut (Castanea dentate) resistant to the chestnut blight fungus (Cryphonectria parasitica) is being conducted currently through traditional breeding and genetic transformation. Sufficient material for field testing is currently available from The American Chestnut Foundation’s backcross breeding program. We planted approximately 4500 chestnut seedlings into forest test p ...

26. The forest health initiative, American chestnut (Castanea dentata) as a model for forest tree restoration: biological research program

Author:
Nelson, C.D.; Powell, W.A.; Maynard, C.A.; Baier, K.M.; Newhouse, A.; Merkle, S.A.; Nairn, C.J.; Kong, L.; Carlson, J.E.; Addo-Quaye, C.; Staton, M.E.; Hebard, F.V.; Georgi, L.L.; Abbott, A.G.; Olukolu, B.A.; Zhebentyayeva, T.
Source:
Acta horticulturae 2014 v. no.1019 pp. 179-189
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; Phytophthora; biotechnology; blight; field experimentation; forest health; forest trees; fungi; genomics; leaves; models; nucleotide sequences; pathogens; peaches; quantitative trait loci; root rot; screening; transgenes; Canada; Eastern United States
Abstract:
... The Forest Health Initiative (FHI) was developed and implemented to test the hypothesis that a coordinated effort in biotechnology research could lead to resistant trees capable of restoring a species in a relevant time frame. As a test case, the American chestnut (Castanea dentata) was chosen for study as it is an iconic forest tree species in the eastern United States and southeastern Canada tha ...