Die Wirkung von Monoterpenen auf das Mycelwachstum von Fomes annosus (Fr.) Cooke

Schuck, H. J.

doi:10.1111/j.1439-0329.1977.tb00607.x

Cited by 21 publications

(10 citation statements)

References 13 publications

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“…Which of these are involved in disease resistance has been discussed. According to several reports, the volatile monoterpenes are particularly toxic ( Hintikka 1970; Prior 1976; Schuck 1977a,b), whereas resin acids and oleoresins mainly function as chemical barriers ( Shain 1967; Cobb et al. 1968; Prior 1976).…”

Section: Discussionmentioning

confidence: 99%

Initial reactions in sapwood of Norway spruce and Scots pine after wounding and infection by Heterobasidion parviporum and H. annosum

2004

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The xylem surface of seedlings, stem material and roots of Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) were inoculated with strains of Heterobasidion annosum s. str. and H. parviporum s. str. The depth of necrosis in wounded spruce increased at a linear rate for at least seven weeks of incubation, but the rate of necrotic spread was significantly faster in infected wounds. In wounded pine the necrosis was maintained at a more superficial level for several weeks. Both spruce and pine sapwood were initially infected by hyphae of both species. In spruce, the hyphae advanced at a constant rate behind the necrotic front. On the contrary, after 1-2 weeks living H. parviporum hyphae were rare in pine rays. Heterobasidion annosum hyphae survived in pine rays, phloem and tracheids, despite a heavy accumulation of phenolics and resins and were able to penetrate into the sapwood at a linear rate although slower than infections in spruce. Histochemistry and quantitative estimates demonstrated that peroxidase activity was initially higher in spruce sapwood than in pine. Within three days of incubation, the activity in spruce sapwood disappeared concurrently with deepening necrosis. However, in pine, in both control and infected samples, there was a significant increase in peroxidase activity in the area surrounding the superficial necrosis, up to the wound surface and in the cambium and phloem around the wound. After wounding and infection, the content of soluble protein increased significantly in wood of older trees but not in seedlings. Infection resulted in an increased formation of lipophilic extractives in both spruce and pine but to a significantly greater degree in the latter, whereas the amount of hydrophilic compounds decreased in both. High-performance liquid chromatography (HPLC) analyses of lipophilic extracts showed that inoculation of pine with the two species of Heterobasidion increased the amounts of pinosylvin, its monomethylether and several other phenolics as also resinous compounds. The results obtained may be relevant in explaining the known higher resistance of Scots pine to H. parviporum.

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Section: Discussionmentioning

confidence: 99%

Initial reactions in sapwood of Norway spruce and Scots pine after wounding and infection by Heterobasidion parviporum and H. annosum

2004

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“…The effects of monoterpenes have also been studied on Heterobasidion annosum s.l. Niemelä & Korhonen, a polyphagous pathogen causing root and butt rot of coniferous trees throughout the northern hemisphere (Cobb et al 1968;Gibbs 1968;Schuck 1977;Thibault-Balesdent and Delatour 1985). These studies were carried out before the reorganization of the taxonomy of this pathogen, which is now divided into three species each showing preference for particular host genera.…”

Section: Introductionmentioning

confidence: 98%

Terpene response of Picea abies and Abies alba to infection with Heterobasidion s.l.

Zamponi¹,

Michelozzi

Capretti³

2007

Forest Pathology

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The monoterpene composition of Picea abies and Abies alba resin was analysed in relation to growth by Heterobasidion spp. Fifteen-year-old P. abies and A. alba trees were inoculated on branches with three species of Heterobasidion annosum s.l. After 4 months of incubation, each host was colonized to a significantly greater degree by the pathogen specific to that host (H. parviporum on P. abies, H. abietinum on A. alba) than by the other fungi. Analysis of the enantiomeric monoterpene profiles in the spruce and fir showed that the response in terms of the relative proportions of the monoterpene compounds in the resin differed between tree species. Following challenge with Heterobasidion spp., A. alba trees did not show changes in monoterpene composition in addition to those in the wounding response (increase in ())-a-pinene and ())-camphene, and decrease in b-phellandrene). In P.abies, ())-a-pinene, (+)-a-pinene and d-3-carene increased following Heterobasidion attack but not after wounding alone.

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“…The response of fungi to these volatiles may be an important factor for their further development in the host. Inhibitory effects of monoterpenes on mycelial growth and spore germination have mostly been reported (COBB et al 1968;HINTIKKA 1970;DE GROOT 1972;SCHUCK 1977;CHOU and ZABKIEWICZ 1976). Only in a few cases has a stimulatory effect been observed (RICE 1970;FRIES 1973), In nature F. annosus grows within the trees and there might be exposed to and tolerate high gas concentrations of volatile compounds which accumulate in the wood (HINTIKKA 1970): Cultivation of the fungus in vapours of terpenoid compounds of different concentrations is a simulation of natural conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The aim of the present investigation was to study the effects of some monoterpenes on the phenol oxidase activity in culture filtrates of F. annosus. Saturated vapours of monoterpenes have been reported to cause an inhibition of the radial growth of the test fungi (CoBB et al 1968;HINTIKKA 1970;DE GROOT 1972;SCHUCK 1977). In this investigation the fungus was cultivated in vapours of cv-pinene, (3-pinene and 3-carene at concentrations known to be inhibitory to dry matter production (FLODIN and FRIES 1978), Discs of inoculum (0 4 mm) were punched out from the margin of a mycelium (14 days old) and placed in 100 ml Erlenmeyer flasks containing 13 ml sterile medium as described above.…”

Section: Introductionmentioning

confidence: 99%

Effects of monoterpenes on Fomes annosus (Fr.) Cooke and its phenol oxidase activity

Flodin

1979

Forest Pathol

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Die Wirkung von Monoterpenen auf das Mycelwachstum von Fomes annosus (Fr.) Cooke

Cited by 21 publications

References 13 publications

Initial reactions in sapwood of Norway spruce and Scots pine after wounding and infection by Heterobasidion parviporum and H. annosum

Initial reactions in sapwood of Norway spruce and Scots pine after wounding and infection by Heterobasidion parviporum and H. annosum

Terpene response of Picea abies and Abies alba to infection with Heterobasidion s.l.

Effects of monoterpenes on Fomes annosus (Fr.) Cooke and its phenol oxidase activity

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