نتایج جستجو برای: monoterpene synthase

تعداد نتایج: 84963  

Journal: :Plant physiology 2004
Yoko Iijima David R Gang Eyal Fridman Efraim Lewinsohn Eran Pichersky

The monoterpene fraction of the lemon-scented sweet basil (Ocimum basilicum) cv Sweet Dani consists mostly of citral (a mixture of geranial and neral), with lower levels of geraniol and nerol. These compounds are stored in the peltate glands found on the leaf epidermis. Younger leaves, which have a higher density of such glands, also have a higher content of monoterpenes than older leaves. Gera...

Journal: :Plant physiology 2008
Sungbeom Lee Joseph Chappell

Magnolia grandiflora (Southern Magnolia) is a primitive evergreen tree that has attracted attention because of its horticultural distinctiveness, the wealth of natural products associated with it, and its evolutionary position as a basal angiosperm. Three cDNAs corresponding to terpene synthase (TPS) genes expressed in young leaves were isolated, and the corresponding enzymes were functionally ...

2004
A. H. Goldstein M. McKay M. R. Kurpius G. W. Schade A. Lee R. Holzinger R. A. Rasmussen

[1] Ecosystem ozone uptake can occur through stomatal and surface deposition and through gas phase chemical reactions. In a California pine forest, thinning dramatically enhanced both monoterpene emission and ozone uptake. These simultaneous enhancements provide strong evidence that ozone reactions with unmeasured biogenically emitted volatile organic compounds (BVOCs) dominate ozone uptake, an...

Journal: :Chemical & pharmaceutical bulletin 2000
T Tanaka M Kataoka N Tsuboi I Kouno

Seven new monoterpene glycoside esters related to paeoniflorin were isolated from Paeoniae Radix, together with polymeric proanthocyanidins, polygalloylglucoses and 48 known compounds (a benzoylsucrose, seven aromatic acids, adenosine, nine monoterpene glycosides, eight flavan-3-ols, a catechin dimer formed by oxidation, seven proanthocyanidins, three galloylsucroses, five galloylglucoses, and ...

2010
J. RINNE A. GHIRARDO K. KOCH R. TAIPALE I. ZIMMER J.-P. SCHNITZLER

Boreal forests are dominated by monoterpenes emitting tree species (Rinne et al., 2009). Traditionally the monoterpene emissions from coniferous tree species are assumed to originate as evaporation from large storage pools (Guenther et al., 1991). Thus their diurnal cycle would depend only on temperature. However, there is indication that a significant part of the monoterpene emission would ori...

2015
Leila Pazouki Hamid R. Memari Astrid Kännaste Rudolf Bichele Ülo Niinemets

Terpenoid synthases constitute a highly diverse gene family producing a wide range of cyclic and acyclic molecules consisting of isoprene (C5) residues. Often a single terpene synthase produces a spectrum of molecules of given chain length, but some terpene synthases can use multiple substrates, producing products of different chain length. Only a few such enzymes has been characterized, but th...

Journal: :Molecules 2012
Rie Furuya Honghai Hu Zhenya Zhang Hideyuki Shigemori

Two new monoterpene diglycosides, suffruyabiosides A and B, and seven known compounds 3-9 were isolated from Moutan Cortex (root cortex of Paeonia suffruticosa Andrews). The structures were elucidated on the basis of 2D NMR spectral data. Suffruyabiosides A and B are rare monoterpene diglycosides, including a cellobiose in the molecules. Salicylpaeoniflorin (4) had a antiproliferation effect si...

Journal: :Science 2015
Jean-Louis Magnard Aymeric Roccia Jean-Claude Caissard Philippe Vergne Pulu Sun Romain Hecquet Annick Dubois Laurence Hibrand-Saint Oyant Frédéric Jullien Florence Nicolè Olivier Raymond Stéphanie Huguet Raymonde Baltenweck Sophie Meyer Patricia Claudel Julien Jeauffre Michel Rohmer Fabrice Foucher Philippe Hugueney Mohammed Bendahmane Sylvie Baudino

The scent of roses (Rosa x hybrida) is composed of hundreds of volatile molecules. Monoterpenes represent up to 70% percent of the scent content in some cultivars, such as the Papa Meilland rose. Monoterpene biosynthesis in plants relies on plastid-localized terpene synthases. Combining transcriptomic and genetic approaches, we show that the Nudix hydrolase RhNUDX1, localized in the cytoplasm, ...

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