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You searched for: Journal name Acta horticulturae Remove constraint Journal name: Acta horticulturae Subject fungi Remove constraint Subject: fungi Subject term Cryphonectria parasitica Remove constraint Subject term: Cryphonectria parasitica
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1. Diversity of fungi occurring in the bark of Castanea sativa in Azerbaijan

Author:
D. N. Aghayeva; D. Rigling; J. B. Meyer; E. Mustafabeyli
Source:
Acta horticulturae 2018 v. no.1220 pp. 79-86
ISSN:
0567-7572
Subject:
Castanea sativa; Coprinellus domesticus; Cryphonectria parasitica; Diaporthe; Epicoccum nigrum; Eutypella; Hyphodermella; Irpex lacteus; Sirococcus; Trichoderma; Umbelopsis; bark; databases; forests; fungi; internal transcribed spacers; mountains; trees; Azerbaijan
Abstract:
... In Azerbaijan chestnut (Castanea sativa) forms small patches in the natural mountainous forests growing together with other deciduous tree species. The chestnut blight fungus (Cryphonectria parasitica) was reported since 2008, and the continuous expansion of disease has been observed in the country. The purpose of present study was to identify the fungi other than C. parasitica isolated from the b ...
DOI:
10.17660/ActaHortic.2018.1220.12

2. Testing chestnut hybrids for resistance to Cryphonectria parasitica

Author:
D. Chira; R. Teodorescu; C. Mantale; F. Chira; G. Isaia; G. Achim; A. Scutelnicu; M. Botu
Source:
Acta horticulturae 2018 v. no.1220 pp. 113-120
ISSN:
0567-7572
Subject:
Castanea crenata; Castanea dentata; Castanea sativa; Cryphonectria parasitica; acclimation; basins; biological control; chemical treatment; climate; disease resistance; forests; fruiting bodies; fungi; health status; horticulture; hybrids; interspecific hybridization; mycelium; mycoviruses; open pollination; orchards; pathogens; seedlings; silviculture; Romania
Abstract:
... Asiatic pathogen Cryphonectria parasitica produced dramatic diebacks of American chestnut (Castanea dentata) and European or sweet chestnut (Castanea sativa) throughout their natural or artificial range, both in forests and orchards. Fungus chemical treatment is a useless (curative) to a less important (preventive) tool. Biological control of Cryphonectria parasitica has various levels of efficien ...
DOI:
10.17660/ActaHortic.2018.1220.17

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. 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 ...

5. 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 ...

6. 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 ...

7. 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 ...

8. 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 ...

9. 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 ...

10. 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 ...

11. 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 ...

12. 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 ...

13. 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 ...

14. 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 ...

15. 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 ...

16. 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 ...