Selective effect of terpenes on wood-decomposing Hymenomycetes

Hintikka, Veikko

doi:10.29203/ka.1970.67

Cited by 43 publications

(20 citation statements)

References 7 publications

(4 reference statements)

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“…Since we obtained no correlation between total resin acid content or the content of any particular acid and depth of infection on day 7 it seems probable that resin acids had little influence on the resistance of Norway spruce bark to H. annosun. The fungus can tolerate high concentrations of volatile terpenes (HINTIKKA 1970). Crude oleoresin from Corsican pine had no effect on the growth of H. annosum in vitro, although it contains resin acids that, by themselves, were inhibitory (PRIOR 1976).…”

Section: Discussionmentioning

confidence: 98%

Stilbenes and resin acids in relation to the penetration of Heterobasidion annosum through the bark of Picea abies

Lindberg

Lundgren

Gref

et al. 1992

European Journal of Forest Pathology

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Concentrations of the stilbene glucosides astringin and isorhapontin, which ranged from 5 to 50 mg/g fresh weight in Picea abies bark, decreased in response to in vivo infection with the root-rot fungus Heterobasidion annosum. The initial concentration of the stilbene astringin was negatively correlated with the depth of hyphal enetration. Resin acid contents increased following infection, but were not correlated with t I ! e depth of hyphal penetration. The spatial distribution of stilbene glucosides in spruce stem, root collar and root bark, and the seasonal variations in concentration, were estimated.

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Section: Discussionmentioning

confidence: 98%

Stilbenes and resin acids in relation to the penetration of Heterobasidion annosum through the bark of Picea abies

Lindberg

Lundgren

Gref

et al. 1992

European Journal of Forest Pathology

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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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“…The ma jor vol a tile com pounds were α-pinene and ∆ 3 -carene, while the mi nor con stit u ents were ß-pinene, terpinolene, longifolene and several oth ers. Many of these dom i nate in vol a tile frac tion of pine oleoresin and play an im por tant role in the re sis tance to root-in fect ing fungi (Bega and Tarry 1966, Cobb et al 1968, Hintikka 1970, Schuck 1982. In the opin ion of Good man et al (1967), some sesquiterpenes also strongly con trib ute to the de fence mech a nism in plants.…”

Section: Discussionmentioning

confidence: 98%

The effects of heavy metals, content of nutrients and inoculation with mycorrhizal fungi on the level of terpenoids in roots of Pinus sylvestris seedlings

et al. 2004

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De part ment of Phytopathology, In sti tute of Den drol ogy, Pol ish Acad emy of Sci ences, Parkowa 5, 62-035 Kórnik, Po land * De part ment of Chem i cal Phys ics, Fac ulty of Chem is try, Maria Cu rie Skłodowska Uni ver sity, 20-031 Lublin, Po land Key words: heavy met als, mycorrhizal fungi, Scots pine, super criti cal fluid ex trac tion, terpenoids. Ab stractThe ef fect of two sub strates dif fer ing in the amount of toxic met als and nu tri ents on the con tent of vol a tile or ganic compounds in roots of Pinus sylvestris seed lings in oc u lated with Paxillus involutus, Laccaria laccata, Suillus luteus and a strain of the ectendomycorrhizal fun gus Mrg X (Ascomycotina) in pot ex per i ment was in ves ti gated. Vol a tile com pounds extracted with a super criti cal fluid ex trac tion were pri mar ily terpenes and sesquiterpenes, and they were qual i ta tively the same in roots of mycorrhizal and nonmycorrhizal plants grown on both sub strates. The ma jor monoterpenes were α-pinene, ∆ 3 -carene and ß-pinene. On the un pol luted sub strate, in oc u lation of plants with the fungi re sulted in a sim i lar amount of the volatiles, while on the pol luted sub strate the mycorrhizal roots showed sig nif i cantly lower con tent of terpenoids than nonmycorrhizal roots. The mycorrhizal fungi showed dif ferent ef fects on the con cen tra tions of sev eral terpenoids on both sub strates.

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Selective effect of terpenes on wood-decomposing Hymenomycetes

Cited by 43 publications

References 7 publications

Stilbenes and resin acids in relation to the penetration of Heterobasidion annosum through the bark of Picea abies

Stilbenes and resin acids in relation to the penetration of Heterobasidion annosum through the bark of Picea abies

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

The effects of heavy metals, content of nutrients and inoculation with mycorrhizal fungi on the level of terpenoids in roots of Pinus sylvestris seedlings

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