Capillary gas chromatography of the terpene components of <i>Picea abies</i> K.

Boscherini, G.; Michelozzi, Marco

doi:10.1002/jhrc.1240161011

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…As chemosystematic studies have demonstrated, terpenes are very useful as biochemical markers to characterise different species and hybrids. For example, terpene markers were successfully used for estimating geographic variation in different provenances of Picea abies (Schö nwitz et al 1990;Boscherini and Michelozzi 1993;Persson et al 1996). The usefulness of terpenes and their enantiomers as biochemical markers was also of value in characterizing different Norway spruce clones (Esteban et al 1976;Silvestrini et al 2004).…”

Section: Discussionmentioning

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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Section: Discussionmentioning

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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“…Previous experiments showed the discriminating power of terpene markers for studying clonal variation in Norway spruce (Boscherini and Michelozzi, 1993;Silvestrini et al, 2004). These variations in constitutive monoterpene profiles between different chemotype clones can have considerable consequences to plant chemical defence, since monoterpenes provide toxic, deterrent or inhibitory effects to herbivores, insects and microbial pathogens (reviewed by Gershenzon and Croteau, 1991;Langenheim, 1994).…”

Section: Tablementioning

confidence: 99%

Monoterpene responses to interacting effects of drought stress and infection by the fungus Heterobasidion parviporum in two clones of Norway spruce (Picea abies)

Madmony

Tognetti

Zamponi

et al. 2018

Environmental and Experimental Botany

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A B S T R A C TTo study simultaneous biotic and abiotic stress effects on monoterpene mediated defence response, four-year-old seedlings of two clones of Picea abies (c386: "relatively resistant" c386; c171: "relatively susceptible" clone 171) were inoculated with an isolate of rot fungus Heterobasidion parviporum and simultaneously subjected to a drought stress recovery cycle. Fungal growth into the wood was generally higher in well-watered (W) than in drought-stressed (D) plants. As predawn water potential decreased, gas exchange and maximal photochemical efficiency of PSII also declined. Water potential and chlorophyll fluorescence showed differences between clones in D plants, c386 being more tolerant than c171, while stomatal conductance and net photosynthesis differed between clones in W plants; c171 showing higher values than c386. A recovery of physiological functions was observed after re-watering. The clones showed different constitutive monoterpene profiles. The infection generally caused some extensive compositional changes in the relative contents of several monoterpenes and their enantiomers; also, sterile infection (wounded only samples) affected the relative proportions of monoterpenes, although to a lesser extent than reactions elicited by the fungus. The trend in monoterpene response to disease treatments was the same in D and W plants of both clones. In particular, higher proportion of δ-3-carene was found constitutively in c386 in comparison with c171; besides, infection with H. parviporum increased the relative contents of δ-3-carene in all the samples, even if proportions of this monoterpene in wounded plus inoculated tissues of c386 were significantly higher than cortical tissues from non-inoculated branches only in W seedlings 44 days after treatment.Although drought stress decreased the total absolute contents of monoterpenes, total monoterpene concentrations significantly increased in response to infection by H. parviporum.

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“…Terpenes are widely used as biochemical markers in forest genetics (Boscherini and Michelozzi, 1993). Monoterpene composition is under genetical control and varies between individuals within source and within species.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Volatile Mono- and Sesquiterpenoids in Highland and Lowland Plant Species as Possible Precursors for Flavor Compounds in Milk and Dairy Products

Mariaca

Berger

Gauch

et al. 1997

J. Agric. Food Chem.

155

129

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This paper examines the distribution of mono- and sesquiterpene secondary metabolites in 47 plants present in grazing areas from which cheeses are produced. In total, 54 terpenoid volatiles, derived from both highland and lowland plants, were obtained by a gaseous purge-and-trap system without the use of organic solvents and then identified by automated GC/MSD-FID analysis using mass spectral libraries, retention indices, and data acquired by the authors with authentic substances. Single ion monitoring proved valuable in identifying overlapping compounds with similar spectra for the subsequent semiquantitative determination of compositions. These are displayed as radar plots. It is suggested that flavor/aroma differences in cheeses produced from animals grazing in different areas and seasons arise from species (n = 38), phenological stages (n = 8), locations (n = 4), and seasonal variation in terpenoids present (the most common were trans-β-ocimene, limonene, and trans-β-caryophyllene). This hypothesis is supported by the fact that distinct variations in terpenoids with differing odor descriptors and abundances were found. It is also possible that terpenes with a higher polarity are less efficiently recovered by the purge-and-trap method than compounds of lower polarity. As the radar plots display relative concentrations based on detection limits, the relative efficiency of detection for different classes of compounds needs to be taken into consideration. Keywords: GC/MS; flavor; volatile; monoterpene; sesquiterpene; plant; highland; lowland; pasture; retention index

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Capillary gas chromatography of the terpene components of Picea abies K.

Cited by 11 publications

References 5 publications

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

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

Monoterpene responses to interacting effects of drought stress and infection by the fungus Heterobasidion parviporum in two clones of Norway spruce (Picea abies)

Occurrence of Volatile Mono- and Sesquiterpenoids in Highland and Lowland Plant Species as Possible Precursors for Flavor Compounds in Milk and Dairy Products

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