Abstract:
:Individual leaves of the three most common chemotypes of Melaleuca alternifolia were examined both quantitatively and qualitatively for volatile constituents from the emergence of the first true leaves, through to 6-week-old tenth leaf set material. The 1,8-cineole and terpinolene chemotypes were investigated and compared with the recently reported commercial terpinen-4-ol chemotype. The 1,8-cineole chemotype was found to accumulate 1,8-cineole and associated p-menthanes limonene, terpinen-4-ol and alpha-terpineol gradually with increasing leaf set number. As with the terpinen-4-ol variety, higher than expected concentrations of the pinenes and terpinolene were found only in the early leaf sets. The terpinolene variety showed two stages of terpinolene accumulation, the first at leaf sets 2-3 similar to the unexpected biosynthesis of terpinolene in the terpinen-4-ol chemotype and the second at leaf sets 8-9 which is characteristic of the terpinolene variety.
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Russell MF,Southwell IAdoi
10.1016/s0031-9422(02)00607-6subject
Has Abstractpub_date
2003-03-01 00:00:00pages
683-9issue
5eissn
0031-9422issn
1873-3700pii
S0031942202006076journal_volume
62pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract::The structures of four alkaloids extracted from Lycopodium lucidulum (Lycopodiaceae) were established by X-ray and 2D NMR spectroscopic analyses. The dihydro-derivative of oxolucidine A, which was obtained by NaBH4 reduction of oxolucidine A, was treated with p-bromobenzoyl chloride to afford crystals, whose X-ray cry...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00592-0
更新日期:2000-02-01 00:00:00
abstract::Four new oleanane triterpenoid saponins named triplosides D-G were isolated from the roots of Triplostegia grandiflora. Their structures were elucidated on the basis of chemical degradation and spectral evidence. The saponins investigated were: oleanolic acid 3-O-beta-D-xylopyranosyl(1----4)-beta-D-xylopyranosyl(1----...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(92)80287-o
更新日期:1992-04-01 00:00:00
abstract::Grapevine cv. Tempranillo fruit-bearing cuttings were exposed to supplemental ultraviolet-B (UV-B) radiation under controlled conditions, in order to study its effect on grape traits, ripening, amino acids and flavonoid profile. The plants were exposed to two doses of UV-B biologically effective (5.98 and 9.66kJm(-2)d...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2014.03.014
更新日期:2014-06-01 00:00:00
abstract::A disproportionately large number of the most important human food plants is cyanogenic. The accumulated research of numerous people working in several different disciplines now allows a tenable explanation for this observation. Cyanogenesis by plants is not only a surprisingly effective chemical defence against casua...
journal_title:Phytochemistry
pub_type: 杂志文章,评审
doi:10.1016/s0031-9422(97)00425-1
更新日期:1998-01-01 00:00:00
abstract::Plants have developed defensive specialized metabolites over the course of evolution. In the genus Hordeum, which includes the important cereal crop barley, specialized metabolites such as hordatines, benzoxazinones, and gramine have been identified. Hordeum species are classified into four clades, H, Xu, Xa, and I. T...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2017.05.004
更新日期:2017-09-01 00:00:00
abstract::A pyrroloisoquinoline alkaloid, 2,3-dimethoxy-6-(3-oxo-butyl)-7,9,10,11,11a,12-hexahydrobenzo[f]pyrrolo[1,2-b]isoquinoline (1), whose structure was determined by spectroscopic methods, was isolated from the aerial parts of Cynanchum komarovii, together with two known alkaloids, 7-demethoxytylophorine (2) and 7-demetho...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00382-x
更新日期:2001-12-01 00:00:00
abstract::The essential oil from the leaves of Callicarpa japonica was analyzed by GC-MS, and 84 compounds were identified. The main constituents of the essential oil were spathulenol (18.1%), germacrene B (13.0%), bicyclogermacrene (11.0%), globulol (3.3%), viridiflorol (2.6%), alpha-guaiene (2.3%), and gamma-elemene (2.0%). T...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00207-8
更新日期:2002-09-01 00:00:00
abstract::Seeds of 57 species of the genus Trifolium have been studied for the occurrence and concentration of soyasapogenol B glycosides and flavonoids. It was shown that all tested species contained soyasaponin I and in some species astragaloside VIII and/or 22-O-glucoside and 22-O-diglucoside of soyasaponin I were also prese...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00230-3
更新日期:2002-09-01 00:00:00
abstract::Dietary intake of proanthocyanidins (PAs) has been largely unknown because of the lack of reliable values for their content in foods. Recent development of an analytical method for PAs has allowed the quantification of individual oligomers and polymers. This method has been employed to analyze food samples collected u...
journal_title:Phytochemistry
pub_type: 杂志文章,评审
doi:10.1016/j.phytochem.2005.03.025
更新日期:2005-09-01 00:00:00
abstract::The effect of light exposure on the steroidal glycoalkaloid content of Solanum phureja tubers has been investigated and compared with that in domesticated potato (Solanum tuberosum) tubers. The results indicated that the increase in the concentration of solanidine-based glycoalkaloids, alpha-solanine and alpha-chaconi...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00023-6
更新日期:2000-04-01 00:00:00
abstract::In addition to Z-coniferyl and Z-sinapyl alcohols, bark extracts of Fagus grandifolia also contain significant amounts of the glucosides, Z-coniferin, Z-isoconiferin (previously called faguside) and Z-syringin. The corresponding E-isomers of these glucosides do not accumulate to a detectable level. The accumulation ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(88)80107-9
更新日期:1988-01-01 00:00:00
abstract::Four coumaronochromones, formosanatins A-D (-4), and a flavanone, euchrenone a(16), along with four known compounds, euchretins E and G, euchrestaflavanone A, and daidzein, were isolated from the roots of Euchresta formosana. The structures of - were established by spectroscopic analyses. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00017-1
更新日期:2002-08-01 00:00:00
abstract::Aromatic prenyltransferases transfer prenyl moieties onto aromatic acceptor molecules, catalyzing an electrophilic substitution of the aromatic ring under formation of carbon-carbon bonds. They give rise to an astounding diversity of primary and secondary metabolites in plants, fungi and bacteria. This review describe...
journal_title:Phytochemistry
pub_type: 杂志文章,评审
doi:10.1016/j.phytochem.2009.05.009
更新日期:2009-10-01 00:00:00
abstract::This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2012.03.001
更新日期:2012-03-16 00:00:00
abstract::Six coumarins have been isolated from the fruits and the stem bark of Calophyllum dispar (Clusiaceae). The structures of these minor components were established by means of spectroscopic analysis, including extensive 2D NMR studies. Some of these coumarins exhibited a significant cytotoxic activity against KB cells. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00285-0
更新日期:2001-10-01 00:00:00
abstract::Two saponins and a sapogenin were isolated from the leaves of Ilex brevicuspis. Their structures were established by means of spectroscopic methods as brevicuspisaponin 1 (3-O-alpha-L-arabinopyranosyl-20(S)-19 alpha,24-dihydroxyursolic acid), brevicuspisaponin 2 (3-O-alpha-L-arabinopyranosyl-20(S)-19 alpha,23,24-trihy...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00517-8
更新日期:2000-04-01 00:00:00
abstract::Gynostemma pentaphyllum is a popular functional food, and it is also used as a traditional medicine in Asia. In this study, five previously undescribed triterpenes, gypensapogenin M, gypensapogenin N, gypensapogenin O, gypensapogenin P, and gypensapogenin Q, together with five known compounds were isolated from the hy...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2017.09.021
更新日期:2017-12-01 00:00:00
abstract::Activity guided fractionations led to the isolation of two antitumor compounds 5 alpha,8 alpha-epidioxy-24(R)-methylcholesta-6,22-dien-3 beta-D-glucopyranoside and 5,6-epoxy-24(R)-methylcholesta-7,22-dien-3 beta-ol from the methanol extract of Cordyceps sinensis. Two previously known compounds, ergosteryl-3-O-beta-D-g...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00128-4
更新日期:1999-08-01 00:00:00
abstract::Two aristololactams, aristololactam GI (1) and aristololactam GII (2), and three aporphines, fissistigamide A (3), fissistigamide B (4) and fissistigmine (5), together with nineteen known alkaloids, one flavone and one anthraquinone were isolated from the ethanol extracts of the stems of Fissistigma oldhamii (Annonace...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2012.09.011
更新日期:2013-02-01 00:00:00
abstract::An approach, using well characterized procedures, is presented that should be of general applicability for the structural elucidation of complex sugar moieties of natural products. The methods used are exemplified by the structure elucidation of a new gitogenin-based steroidal saponin that has a strong leishmanicidal ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00035-8
更新日期:2001-06-01 00:00:00
abstract::The genuine major benzylisoquinoline alkaloid occurring in the traditional medicinal plant greater celandine (Chelidonium majus L.) is 13,14-dihydrocoptisine and not - as described previously - coptisine. Structure of 13,14-dihydrocoptisine was elucidated. The discrepancy between the alkaloid pattern of the living pla...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2015.01.006
更新日期:2015-03-01 00:00:00
abstract::Four new oleanane-type saponins 3-O-α-L-rhamnopyranosyl-(1 → 4)-β-D-glucuronopyranosyl-22-O-β,β-dimethylacryloylA1-barrigenol (1), 3-O-α-L-rhamnopyranosyl-(1 → 4)-β-D-glucuronopyranosyl-22-O-angeloylA1-barrigenol (2), 3-O-β-D-glucopyranosyl-(1 → 2)-[β-D-glucopyranosyl-(1 → 6)]-β-D-glucopyranosyl-21,22,28-O-triacetyl-(...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2014.11.017
更新日期:2015-02-01 00:00:00
abstract::A benzil, calophione A, 1-(6'-Hydroxy-1',3'-benzodioxol-5'-yl)-2-(6''-hydroxy-2''-isopropenyl-2'',3''-dihydro-benzofuran-5''-yl)-ethane-1,2-dione and three coumestan derivatives, tephcalostan B, C and D were isolated from the roots of Tephrosia calophylla. Their structures were deduced from spectroscopic data, includi...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2008.10.009
更新日期:2009-01-01 00:00:00
abstract::The chemical study on the heartwoods extract of Ventilago harmandiana (Rhamnaceae) resulted in the isolation of ten previously undescribed pyranonaphthoquinones (ventilanones A-J), an undescribed anthraquinone (ventilanone K), together with eight known anthraquinone derivatives. Their structures were elucidated by ext...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2019.112182
更新日期:2020-01-01 00:00:00
abstract::Seventeen undescribed heterodimers of meroterpene phenol, psocorylins A-Q, were isolated from the fruits of Psoralea corylifolia. Their another monomeric unit derived from flavonone, chalcone, coumarin and isoflavone, respectively. Psocorylins A-E were rare natural spiroketals with the skeleton of 1,4,8-trioxaspiro[4....
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/j.phytochem.2020.112394
更新日期:2020-08-01 00:00:00
abstract::Incorporation of [1-13C]glucose indicates that the biosynthesis of the hemiterpene moiety of glabrol, the main prenylated flavanone in the hairy root cultures of Glycyrrhiza glabra, proceeds via a glyceraldehyde/pyruvate non-mevalonate pathway. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(00)00327-7
更新日期:2000-10-01 00:00:00
abstract::A new sweet triterpene glycoside, periandrin V, was isolated from the roots of Periandra dulcis and identified as 3 beta-O-[beta-D-xylopyranosyl-(1-->2)-beta-D-glucuronopyranosyl]-25 -al-olean-18(19)-en-30-oic acid on the basis of chemical and spectral evidence. The structure of an acid-rearranged product of periandri...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/0031-9422(93)80018-n
更新日期:1993-09-01 00:00:00
abstract::Five isoflavonoids, 7,4'-dihydroxy-2'-methoxy-8-(gamma,gamma-dimethylallyl)isoflav-3-ene, 4'-hydroxy-2'-methoxy-6",6"-dimethylpyran[2",3":7,8]isoflav-3-ene, 5,7,4'-trihydroxy-2'-methoxy-5'-(gamma,gamma-dimethylallyl)isoflavanone, 5,4'-dihydroxy-7,2'-dimethoxy-5'-(gamma,gamma-dimethylallyl)isoflavanone and 3,9-dihydrox...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(02)00164-4
更新日期:2002-08-01 00:00:00
abstract::The fatty acid compositions of 22 species of marine macrophytes, belonging to the Ceramiales, Cryptonemiales, Nemalionales, Laminariales, Chordariales, Scytosiphonales, Desmarestiales, Dictyosiphonales, Fucales, Dictyotales and Ulvales and collected from the Bohai Sea, were determined by capillary gas chromatography. ...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(01)00437-x
更新日期:2002-01-01 00:00:00
abstract::Two cell wall proteins from chickpea, known to be rapidly insolubilised by an elicitor-stimulated oxidative burst in-vivo, were purified from suspension cells. N-terminal protein sequencing revealed them as a proline-rich protein and an extensin-like protein. Oxidative cross-linking could be modelled in an in vitro sy...
journal_title:Phytochemistry
pub_type: 杂志文章
doi:10.1016/s0031-9422(99)00463-x
更新日期:2000-01-01 00:00:00