Relative importance of growth and light level on terpene content of Ginkgo biloba

Flesch, Valerie; Martin, Jacques; Cosson, L.; Teng, B.P.; Pétiard, Vincent; Balz, Jean-Pierre

doi:10.1016/0031-9422(92)80337-e

Cited by 39 publications

(14 citation statements)

References 9 publications

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“…Circadian rhythms in CO 2 ®xation have been reported to be mediated by xanthine oxidoreductase activity in the unicellular alga Gonyaulax polyedra Roenneberg and Deng 1997), through regulation by phosphoenolpyruvate carboxylase activity in Bryophyllum (Hartwell et al 1996) and, in earlier studies with Coea and several succulents, via rhythmic shifts in the CO 2 -compensation point (Jones 1971). Non-circadian, stimulatory eects of light intensity on the emission or accumulation of terpenoids have been reported for Ginkgo biloba (Flesh et al 1992), Trifolium repens , Quercus ilex (Staudt and Seufert 1995) and Thymus vulgaris (Yamaura et al 1991). In the latter case, phytochrome also appears to be involved in signal transduction leading to increased accumulation of thymol and other monoterpenes (Tanaka et al 1989;Yamaura et al 1991).…”

Section: Discussionmentioning

confidence: 91%

Circadian rhythmicity in emission of volatile compounds by flowers of Rosa hybrida L. cv. Honesty

Helsper

Davies

Bouwmeester

et al. 1998

Planta

110

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Quantitative headspace analyses of rose¯ow-ers showed no signi®cant dierences in composition of emitted volatile compounds between¯owers on the intact plant and cut¯owers placed in vase water containing sucrose at 0, 15 or 30 g á l A1 . Volatile components emitted were geraniol, nerol, citronellol, E-citral, Z-citral, methylgeranylate, trans-caryophyllene, b-cubebene, dihydro-b-ionone, 2-phenylethanol, 2-phenylethylacetate, 3,5-dimethoxytoluene and hexylacetate. When exposed to a 12-h photoperiod these components showed maximum emission during the light period and a rhythmicity which diered for the individual compounds. The circadian nature of the rhythmicity was con®rmed by the continuation of rhythmicity during continued darkness or light, and was characterized bỳ transient' and`free running' periods of 27 and 24 h, respectively, and a phase shift of 12 h in rhythmicity when a 24-h period of continuous darkness was followed by re-exposure to a 12-h photoperiod. Rhythmicity in emission was not observed when¯owers were kept in darkness before¯ower bud opening, but started immediately upon exposure to a 12-h photoperiod.

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Section: Discussionmentioning

confidence: 91%

Circadian rhythmicity in emission of volatile compounds by flowers of Rosa hybrida L. cv. Honesty

Helsper

Davies

Bouwmeester

et al. 1998

Planta

110

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“…The smaller NAM plants could be at a different growth stage, and their higher content of sesquiterpenes could be due to a different developmental stage. Changes in sesquiterpene content and composition during development have been noted in many plant species (Chou and Mullin, 1993;Flesch et al, 1992;Köllner et al, 2004), with mature plants frequently exhibiting lower sesquiterpene content than younger plants (Alonso-Amelot et al, 1992;Haraguchi et al, 1993).…”

Section: Discussionmentioning

confidence: 99%

Effect of arbuscular mycorrhizal (AM) colonization on terpene emission and content of Artemisia annua L.

2008

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Plant roots interact with a wide variety of rhizospheric microorganisms, including bacteria and the symbiontic arbuscular mycorrhizal (AM) fungi. The mycorrhizal symbiosis represents a series of complex feedbacks between plant and fungus regulated by their physiology and nutrition. Despite the widespread distribution and ecological significance of AM symbiosis, little is known about the potential of AM fungi to affect plant VOC metabolism. The purpose of this study was to investigate whether colonization of plant roots by AM fungi and associated soil microorganisms affects VOC emission and content of Artemisia annua L. plants (Asteraceae). Two inoculum types were evaluated: one consisted of only an arbuscular mycorrhizal (AM) fungus species (Glomus spp.), and the other was a mixture of different Glomus species and associated soil bacteria. Inoculated plants were compared with non‐inoculated plants and with plants supplemented with extra phosphorus (P) to obtain plants of the same size as mycorrhizal plants, thus excluding potentially‐confounding mycorrhizal effects on shoot growth. VOC emissions of Artemisia annua plants were analyzed by leaf cuvette sampling followed by off‐line measurements with pre‐concentration and gas chromatography mass spectrometry (GC‐MS). Measurements of CO2 and H2O exchanges were conducted simultaneously. Several volatile monoterpenes were identified and characterized from leaf emissions of Artemisia annua L. by GC‐MS analysis. The main components identified belong to different monoterpene structures: α‐pinene, β‐pinene, camphor, 1,8‐cineole, limonene, and artemisia ketone. A good correlation between monoterpene leaf concentration and leaf emission was found. Leaf extracts included also several sesquiterpenes. Total terpene content and emission was not affected by AM inoculation with or without bacteria, while emission of limonene and artemisia ketone was stimulated by this treatment. No differences were found among treatments for single monoterpene content, while accumulation of specific sesquiterpenes in leaves was altered in mycorrhizal plants compared to control plants. Growth conditions seemed to have mainly contributed to the outcome of the symbiosis and influenced the magnitude of the plant response. These results highlight the importance of considering the below‐ground interaction between plant and soil for estimating VOC emission rates and their ecological role at multitrophic levels.

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“…In the case of group A, which was formed in young seedlings only after herbivore damage, compounds were present constitutively in mature plants, although we cannot exclude that they may have been induced by abiotic stress or mechanical damage during their growth in a pest-free green house. Changes in sesquiterpene content and composition during development have been noted in many other plant species (e.g., Chou and Mullin, 1993;Flesch et al, 1992) with mature plants frequently exhibiting much lower sesquiterpene content than younger plants (Alonso-Amelot et al, 1992;Haraguchi et al, 1993).…”

Section: Sesquiterpene Content and Composition Of Mature Plantsmentioning

confidence: 98%

The sesquiterpene hydrocarbons of maize (Zea mays) form five groups with distinct developmental and organ-specific distributions

et al. 2004

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Relative importance of growth and light level on terpene content of Ginkgo biloba

Cited by 39 publications

References 9 publications

Circadian rhythmicity in emission of volatile compounds by flowers of Rosa hybrida L. cv. Honesty

Circadian rhythmicity in emission of volatile compounds by flowers of Rosa hybrida L. cv. Honesty

Effect of arbuscular mycorrhizal (AM) colonization on terpene emission and content of Artemisia annua L.

The sesquiterpene hydrocarbons of maize (Zea mays) form five groups with distinct developmental and organ-specific distributions

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