2008
DOI: 10.14214/df.63
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Ecological impacts of Phlebiopsis gigantea biocontrol treatment against Heterobasidion spp. as revealed by fungal community profiling and population analyses

Abstract: Wood decay fungi belonging to the species complex Heterobasidion annosum sensu lato are among the most common and economically important species causing root rot and stem decay in conifers of the northern temperate regions. New infections by these pathogens can be suppressed by tree stump treatments using chemical or biological control agents. In Finland, the corticiaceous fungus Phlebiopsis gigantea h a s b e e n f o r m u l a t e d i n t o a commercial biocontrol agent called Rotstop (Verdera Ltd.).This thes… Show more

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Cited by 5 publications
(3 citation statements)
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References 324 publications
(285 reference statements)
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“…This interaction is similar to that between P. gigantea and H. annosum that was described as structural changes to the hyphae of H. annosum resulting in cytoplasmic vacuolation, granulation and loss of opacity (Ikediegwu ). This response is considered to be one of the expressions of mycoparasitic activity that leads to suppression of the growth of pathogens (Vainio ). Attempts to grow G. philippii from the confrontation zone were generally unsuccessful.…”
Section: Discussionmentioning
confidence: 99%
“…This interaction is similar to that between P. gigantea and H. annosum that was described as structural changes to the hyphae of H. annosum resulting in cytoplasmic vacuolation, granulation and loss of opacity (Ikediegwu ). This response is considered to be one of the expressions of mycoparasitic activity that leads to suppression of the growth of pathogens (Vainio ). Attempts to grow G. philippii from the confrontation zone were generally unsuccessful.…”
Section: Discussionmentioning
confidence: 99%
“…Infatti, la presenza in bosco di altri isolati nativi era già stata verificata a suo tempo nella prova preliminare (Annesi et al 2005) ed è stata ripetutamente confermata nel corso di monitoraggi dell'inoculo aereo di H. annosum effettuato nella stessa pineta (D'Amico et al 2008), in quanto dalle rotelle-trappola veniva catturato, anche dopo il trattamento biologico, inoculo di P. gigantea con caratteristiche genetiche diverse dall'isolato ISPaVe PF 52 (dati non pubblicati). In precedenti sperimentazioni la "non persistenza" di un isolato utilizzato per il controllo biologico era stata dimostrata su P. sylvestris (Vainio et al 2001), ma non su P. abies, dove era reperibile sino a sei anni dopo (Vainio 2008). Questa non persistenza è stata qui verificata anche su P. pinea, evidenziando un ulteriore argomento a favore dell'utilizzo di questo organismo per la lotta biologica a H. annosum in ambiente mediterraneo.…”
Section: Discussioneunclassified
“…Fungus strains were obtained from Rotstop and PG Suspension producers and represented P. gigantea mycelium growing on coniferous stumps in Scandinavia (Finland, Sweden) and Great Britain, respectively. It was assumed that the results of molecular analyses carried out with the use of random amplified microsatellite (RAMS) method [27][28][29][30][31] as well as comparisons of strain enzymatic, and wood decay activities would distinguish similarities between the strains tested and point towards the most vigorous ones, in view of treatment efficacy in practice. The results of some enzyme assays and Norway spruce wood decay assessments described below were extracted from the database described by Żółciak et al [17].…”
mentioning
confidence: 99%