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Letteratura scientifica selezionata sul tema "Amylostereum"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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Articoli di riviste sul tema "Amylostereum"

1

Burnip, G. M., I. C. Harvey, D. Voice e M. Braithwaite. "New host association for Sirex noctilio and Amylostereum areolatum on Cedrus atlantica". New Zealand Plant Protection 61 (1 agosto 2008): 391. http://dx.doi.org/10.30843/nzpp.2008.61.6866.

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Wood boring larvae considered to be Sirex wood wasp were found together with its symbiot the pathogenic Amylostereum fungi associated with ca 20 dead and dying cedar trees at a Christchurch golf club MAF Biosecurity New Zealand was contacted because it was thought that the Sirex was possibly a species not present in New Zealand such as Sirex juvencus or Urocerus gigas (both high impact forest pests) since the single Sirex species present here (Sirex noctilio) had not previously been recorded attacking Cedrus sp (cedar) in New Zealand or elsewhere Furthermore if the Sirex was a recent incursion of a new to New Zealand species the Amylostereum fungi might also have been an exotic species Further examinations revealed a single adult Sirex (live preemergence) within a larval tunnel This allowed definitive morphological identification as Sirex noctilio the species already present in New Zealand Molecular diagnostics (direct sequencing) determined the fungi to be Amylostereum areolatum; the Amylostereum fungi commonly found in association with Sirex noctilio in New Zealand Pinus spp Investigations suggest tree stress (probably nontarget herbicide impacts) resulted in the cedar becoming susceptible to Sirex noctilio attack This represents a new record of association between Sirex noctilio and Amylostereum areolatum on Cedrus atlantica host

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2

Wooding, Amy L., Michael J. Wingfield, Brett P. Hurley, Jeffrey R. Garnas, Peter de Groot e Bernard Slippers. "Lack of fidelity revealed in an insect–fungal mutualism after invasion". Biology Letters 9, n. 4 (23 agosto 2013): 20130342. http://dx.doi.org/10.1098/rsbl.2013.0342.

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Symbiont fidelity is an important mechanism in the evolution and stability of mutualisms. Strict fidelity has been assumed for the obligate mutualism between Sirex woodwasps and their mutualistic Amylostereum fungi. This assumption has been challenged in North America where the European woodwasp, Sirex noctilio , and its fungal mutualist, Amylostereum areolatum , have recently been introduced. We investigate the specificity of the mutualism between Sirex and Amylostereum species in Canada, where S. noctilio co-infests Pinus with native Sirex nigricornis and its mutualist, Amylostereum chailletii . Using phylogenetic and culture methods, we show that extensive, reciprocal exchange of fungal species and strains is occurring, with 75.3 per cent of S. nigricornis carrying A. areolatum and 3.5 per cent of S. noctilio carrying A. chailletii . These findings show that the apparent specificity of the mutualism between Sirex spp. and their associated Amylostereum spp. is not the result of specific biological mechanisms that maintain symbiont fidelity. Rather, partner switching may be common when shifting geographical distributions driven by ecological or anthropogenic forces bring host and mutualist pairs into sympatry. Such novel associations have potentially profound consequences for fitness and virulence. Symbiont sharing, if it occurs commonly, may represent an important but overlooked mechanism of community change linked to biological invasions.

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3

Baxter, A. P., I. H. Rong e A. L. Schutte. "Amylostereum areolatum (Aphyllophorales: Stereaceae) in South Africa". South African Journal of Botany 61, n. 6 (dicembre 1995): 352–54. http://dx.doi.org/10.1016/s0254-6299(15)30558-5.

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4

Tabata, Masanobu, e Yasuhisa Abe. "Amylostereum laevigatum associated with a horntail, Urocerus antennatus". Mycoscience 40, n. 6 (dicembre 1999): 535–39. http://dx.doi.org/10.1007/bf02461032.

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5

Ryan, Kathleen, Jean-Marc Moncalvo, Peter de Groot e Sandy M. Smith. "Interactions between the fungal symbiont of Sirex noctilio (Hymenoptera: Siricidae) and two bark beetle-vectored fungi". Canadian Entomologist 143, n. 3 (giugno 2011): 224–35. http://dx.doi.org/10.4039/n11-001.

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AbstractThe woodwasp Sirex noctilio F. is invading North American forests, where it will interact with a large guild of pine-inhabiting beetles and their associated fungi. The woodwasp's obligate fungal symbiont, Amylostereum areolatum (Fries) Boidin (Stereaceae), plays an essential role in the wasp's larval development but is expected to be a poor competitor in the presence of fungi vectored by co-occurring insects. We examined the outcomes of competitive interactions between A. areolatum and two fungal species vectored by bark beetles, Leptographium wingfieldii Morelet (Ophiostomataceae) and Ophiostoma minus (Hedgcock) H. and P. Sydow (Ophiostomataceae), and the effect of temperature and substrate on these interactions. Beetle-associated fungi were usually able to capture more uncolonized resource than A. areolatum regardless of substrate or temperature. Amylostereum areolatum was able to colonize relatively more space in some cases but could not gain substrate already colonized by the ophiostomatoid competitor. These findings suggest that competitive interactions between beetle-vectored fungal species and A. areolatum could influence the reproductive fitness and distribution of S. noctilio within individual trees and also across a wide geographic area.

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6

van der Nest, M. A., E. T. Steenkamp, B. Slippers, A. Mongae, K. van Zyl, J. Stenlid, M. J. Wingfield e B. D. Wingfield. "Gene expression associated with vegetative incompatibility in Amylostereum areolatum". Fungal Genetics and Biology 48, n. 11 (novembre 2011): 1034–43. http://dx.doi.org/10.1016/j.fgb.2011.08.001.

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7

Tabata, Masanobu, e Yasuhisa Abe. "Amylostereum laevigatum associated with the Japanese horntail, Urocerus japonicus". Mycoscience 38, n. 4 (dicembre 1997): 421–27. http://dx.doi.org/10.1007/bf02461682.

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8

Fitza, Katrin N. E., Masanobu Tabata, Natsumi Kanzaki, Koki Kimura, Jeff Garnas e Bernard Slippers. "Host specificity and diversity of Amylostereum associated with Japanese siricids". Fungal Ecology 24 (dicembre 2016): 76–81. http://dx.doi.org/10.1016/j.funeco.2016.08.005.

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9

Tabata, Masanobu, Thomas C. Harrington, Wei Chen e Yasuhisa Abe. "Molecular phylogeny of species in the genera Amylostereum and Echinodontium". Mycoscience 41, n. 6 (dicembre 2000): 585–93. http://dx.doi.org/10.1007/bf02460925.

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10

Wilson, A. D., N. M. Schiff, D. A. Haugen e E. R. Hoebeke. "First Report of Amylostereum areolatum in Pines in the United States". Plant Disease 93, n. 1 (gennaio 2009): 108. http://dx.doi.org/10.1094/pdis-93-1-0108a.

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Abstract (sommario):

The wood decay fungus Amylostereum areolatum (Fr.) Boidin, native to Eurasia and North Africa (4), is the mycosymbiont of several siricid woodwasps including Sirex noctilio Fabricius, a major pest of pines in New Zealand, Australia, South America, and South Africa where it has been introduced. Adult females of S. noctilio are effective vectors of arthrospores (hyphal fragments) of the fungus, stored internally within mycangia in the abdomen, which are injected with the eggs and a phytotoxic mucus into the outer sapwood of coniferous tree hosts during oviposition. The toxin is translocated upward into the foliage causing needle wilting, necrosis, and crown dieback. The fungus decays the wood (white rot) and provides food for hatching larvae that form borer galleries. Extensive damage to the host via wood decay, galleries, and toxin effects cause mortality in heavily infested trees. S. noctilio adults have been intercepted from several locations in North America prior to 2003, but there has been no evidence of an established population in any native forests until recently. In September 2004, a single adult female was collected from a funnel-trap at the edge of a forest stand in Fulton, NY (Oswego County) and identified in February 2005 (3). A local survey in May 2005 revealed red pines and Scotch pines infested with siricid larvae on the SUNY Oswego campus and in Rice Creek Nature Preserve, 3 km from campus. All larvae from infested trees were identified as S. noctilio using the DNA barcode method (2). Bole sections of infested red pines were sent to the USDA-ARS quarantine facility in Stoneville, MS. Wood samples, taken from areas of incipient decay adjacent to larval galleries, were plated onto 4.5% potato dextrose agar. Fungal colonies in pure cultures arising from wood pieces were appressed and exhibited microscopic characters typical of A. areolatum. Molecular confirmation of identifications for nine isolates was achieved by PCR amplification and sequencing of the rDNA internal transcribed spacer (ITS) region using ITS1 and ITS4 universal primer pairs. BLAST program analyses of these sequences compared against the NCBI GenBank database revealed the isolates were identical (GenBank Accession No. FJ040860) and had 98.8 to 99.8% sequence homology with five A. areolatum GenBank sequences (AF454428, AY781245, AF218389, EU249343, and EU249344) from Germany, Sweden, Japan, and Canada. To our knowledge, this represents the first confirmed isolation of A. areolatum from a native pine stand in the United States and confirms the first incidence of infections of North American pines, 16 months prior to isolations in Ontario (1). This insect vector-decay fungus complex, native to Eurasia, has a very high-risk rating and threatens many pine (Pinus) species in North America, particularly southern U.S. species that have been severely attacked and killed where introduced in the Southern Hemisphere. The lack of complete sequence homology between New York and Ontario, Canada strains of A. areolatum suggests that these recent incidences probably resulted from multiple woodwasp introductions rather than from vector (S. noctilio female) movement after one introduction. References: (1) M. J. Bergeron et al. Plant Dis. 92:1138, 2008. (2) P. D. N. Hebert et al. Proc. R. Soc. Lond. B 270:313, 2003. (3) E. R. Hoebeke et al. Newsl. Mich. Entomol. Soc. 50:24, 2005. (4) J. P. Spradbery and A. A. Kirk. Bull. Entomol. Res. 68:341, 1978.

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Più fonti

Tesi sul tema "Amylostereum"

1

van, der Nest Magrieta Aletta. "Mycelial compatibility in Amylostereum areolatum". Thesis, University of Pretoria, 2010. http://hdl.handle.net/2263/79195.

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2

Van, der Nest Magrieta Aletta. "Mycelial compatibility in Amylostereum areolatum". Thesis, University of Pretoria, 2011. http://hdl.handle.net/2263/30848.

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3

Wooding, Amy Lorraine. "Sex determination and symbiont transmission in the Sirex-Amylostereum mutualism". Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/79213.

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Abstract (sommario):

Interactions among living organisms fall along the mutualism-parasitism continuum; where mutualistic interactions benefit one or both organisms and parasitic interactions harm them. Mutualisms are a particularly interesting form of interaction as their evolutionary stability is constantly at risk of destabilisation by cheaters which take greater advantage of their partners than other symbionts in the population. This has resulted in organisms involved in mutualistic interactions have evolved many mechanisms to prevent destabilisation by cheaters. Insects are involved in mutualistic interactions with a myriad of organisms, in particular micro-organisms. Some of the most well documented insect–micro–organism interactions are those of the fungus–farming insects; Attine ants, termites and ambrosia beetles, and the obligate mutualistic fungi they cultivate. These mutualisms have remained stable over millions of years. Another, less well studied, apparently stable, obligate insect-fungus mutualism is the interaction between Sirex woodwasps and Amylostereum fungi. In this review we examine the evolution of mutualisms from initial interaction, through to maintenance of a stable obligate interaction, and explore the mechanisms that act to stabilise them. We explore the evolutionary and ecological factors necessary for the maintenance of the Sirex–Amylostereum mutualism in the context of work that has been done on the evolution of other more extensively studied insect-fungus mutualisms.
Dissertation (MSc)--University of Pretoria, 2014.
Genetics
MSc
Unrestricted

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4

Bordeaux, John Michael. "Characterization of growth conditions for production of a laccase-like phenoloxidase by Amylostereum areolatum, a fungal pathogen of pines and other conifers". 2008. http://purl.galileo.usg.edu/uga%5Fetd/bordeaux%5Fjohn%5Fm%5F200808%5Fms.

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Libri sul tema "Amylostereum"

1

The Sirex Woodwasp And Its Fungal Symbiont Research And Management Of A Worldwide Invasive Pest. Springer, 2011.

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Capitoli di libri sul tema "Amylostereum"

1

van der Nest, Magriet A., Brenda D. Wingfield, Michael J. Wingfield, Jan Stenlid, Rimvydas Vasaitis e Bernard Slippers. "Genetics of Amylostereum Species Associated with Siricidae Woodwasps". In The Sirex Woodwasp and its Fungal Symbiont:, 81–94. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1960-6_6.

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2

Wermelinger, Beat, e Iben M. Thomsen. "The Woodwasp Sirex noctilio and Its Associated Fungus Amylostereum areolatum in Europe". In The Sirex Woodwasp and its Fungal Symbiont:, 65–80. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1960-6_5.

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Atti di convegni sul tema "Amylostereum"

1

Hajek, Ann E. "Sirex noctilio-Amylostereum-Deladenusinteractions in North America". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.91890.

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2

Postma Smidt, Alisa. "The genomes ofSirex noctilio,Amylostereum areolatum,andDeladenus siricidicola: Insights into symbiosis and invasion processes". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.91893.

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