Actinidia arguta: volatile compounds in fruit and flowers

Matich, Adam J.; Young, Harry; Allen, John M.; Wang, Mindy; Fielder, Simon; McNeilage, M.A.; MacRae, Elspeth

doi:10.1016/s0031-9422(03)00142-0

Cited by 120 publications

(107 citation statements)

References 46 publications

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“…Although extensive monoterpenol (especially linalool) oxidative metabolism has been described in many plant species, leading to fragrant and bioactive compounds as diverse as alcohols, aldehydes, acids, and epoxides (Williams et al, 1982;Matich et al, 2003Matich et al, , 2011Luan et al, 2005Luan et al, , 2006Ginglinger et al, 2013), pyranoid or furanoid linalool derivatives (Pichersky et al, 1994;Raguso and Pichersky, 1999), and geraniol-derived iridoids and secoiridoids (Dinda et al, 2007a(Dinda et al, , 2007b(Dinda et al, , 2011Tundis et al, 2008), limited information is available on the enzymes generating these oxygenated compounds. Involvement of a cytochrome P450 (P450) enzyme extracted from Vinca rosea (now renamed Catharanthus roseus) in the hydroxylation of geraniol and nerol was suggested as early as 1976 (Madyastha et al, 1976).…”

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confidence: 99%

Dual Function of the Cytochrome P450 CYP76 Family from Arabidopsis thaliana in the Metabolism of Monoterpenols and Phenylurea Herbicides

et al. 2014

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Comparative genomics analysis unravels lineage-specific bursts of gene duplications related to the emergence of specialized pathways. The CYP76C subfamily of cytochrome P450 enzymes is specific to Brassicaceae. Two of its members were recently associated with monoterpenol metabolism. This prompted us to investigate the CYP76C subfamily genetic and functional diversification. Our study revealed high rates of CYP76C gene duplication and loss in Brassicaceae, suggesting the association of the CYP76C subfamily with species-specific adaptive functions. Gene differential expression and enzyme functional specialization in Arabidopsis thaliana, including metabolism of different monoterpenols and formation of different products, support this hypothesis. In addition to linalool metabolism, CYP76C1, CYP76C2, and CYP76C4 metabolized herbicides belonging to the class of phenylurea. Their ectopic expression in the whole plant conferred herbicide tolerance. CYP76Cs from A. thaliana. thus provide a first example of promiscuous cytochrome P450 enzymes endowing effective metabolism of both natural and xenobiotic compounds. Our data also suggest that the CYP76C gene family provides a suitable genetic background for a quick evolution of herbicide resistance.Although extensive monoterpenol (especially linalool) oxidative metabolism has been described in many plant species, leading to fragrant and bioactive compounds as diverse as alcohols, aldehydes, acids, and epoxides

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confidence: 99%

Dual Function of the Cytochrome P450 CYP76 Family from Arabidopsis thaliana in the Metabolism of Monoterpenols and Phenylurea Herbicides

et al. 2014

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“…In contrast, only a minute amount of α-farnesene was detected in the floral volatiles emitted from flowers of several A. arguta accessions, which emit a scent dominated by the monoterpene β-linalool and its derivatives, including lilac alcohols and lilac aldehydes. 16 Analysis of volatiles evolved as a consequence of divergence from a di-TPS while the evolution of AdAFS1 could have simply been initiated by loss of the plastid targeting signal containing exon 1 in the di-TPS ancestor. This would have resulted in access to a new substrate (i.e., FDP) pool which it could then utilize without significant active site alterations.…”

Section: Evolution Of Terpene Synthasesmentioning

confidence: 99%

Floral sesquiterpenes and their synthesis in dioecious kiwifruit

Nieuwenhuizen

Green

Atkinson

2010

Plant Signaling & Behavior

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Kiwifruit species are vigorously growing dioecious vines that rely on bees and other insects for pollen transfer between spatially separated male and female individuals. Floral volatile terpene cues for insect pollinator attraction were characterized from flowers of the most widely grown and economically important kiwifruit cultivar Actinidia deliciosa 'Hayward' and its male pollinator 'Chieftain'. The sesquiterpenes α-farnesene and germacrene D dominated in all floral tissues and the emission of these compounds was detected throughout the day, with lower levels at night. Two terpene synthase (TPS) genes were isolated from A. deliciosa petals that produced (+)-germacrene D and (E,E)-α-farnesene respectively. Both TPS genes were expressed in the same tissues and at the same times as their corresponding floral volatiles. Here we discuss these results with respect to plant and insect ecology and the evolution and structure of sesquiterpene synthases.

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“…Several studies have been performed on the volatile aromatic and fl avorous compounds of kiwifruit fruit. And it was reported that components of AA fruits were primarily a mixture of esters, aldehydes and alcohols, with various monoterpenes (Matich et al, 2003). AA commonly known as hardy kiwifruit is being cultivated on limited acreage in western North America, and has been tested as a potential processed food product.…”

Section: Introductionmentioning

confidence: 99%