Results 171 to 180 of about 19,310 (214)
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Leaf wax alkanes in the genus coincya
Phytochemistry, 1994Abstract Leaf wax alkanes in the genus Coincya vary between C 22 and C 31 . This series is dominated by alkanes with an odd number of carbon atoms. The most abundant alkanes are C 29 , C 31 and C 27 . The main one, C 29 , ranges from 53.3% in C. monensis subsp. nevadensis to 95.0% in C. monensis subsp. recurvata var. setigera .
Javier Vioque +2 more
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Leaf wax constituents of some myrtaceous species
Phytochemistry, 1983Abstract Eucalyptin and 8-desmethyleucalyptin have been isolated from the leaf wax coatings of several species of Eucalyptus, from Syncarpia glomulifera, Lophostemon confertus and an Angophora hybrid indicating that C-methylated flavones may be fairly distinctive of the family Myrtaceae.
John L. Courtney +2 more
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Science (New York, N.Y.), 1969
The external surface of the higher plants comprises a cuticular layer covered by a waxy deposit. This deposit is believed to play a major part in such phenomena as the water balance of plants and the behavior of agricultural sprays. The wax contains a wide range of organic compounds.
G, Eglinton, R J, Hamilton
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The external surface of the higher plants comprises a cuticular layer covered by a waxy deposit. This deposit is believed to play a major part in such phenomena as the water balance of plants and the behavior of agricultural sprays. The wax contains a wide range of organic compounds.
G, Eglinton, R J, Hamilton
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C-Methyl-flavonoids from the leaf waxes of some Myrtaceae
Phytochemistry, 2000The thin waxy coatings on leaves of nine species of Callistemon, two of Melaleuca and one species of Metrosideros, have been studied for the occurrence of leaf surface flavonoids. The Callistemon species and Metrosideros robusta exhibit only C-methylated flavonoids, while O-methyl flavonoids were detected in Melaleuca huegelii. The new natural C-methyl
Wollenweber, E. +4 more
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Composition of leaf epicuticular waxes of Pteridium subspecies
Phytochemistry, 1987Abstract The leaf epicuticular waxes of two subspecies of Pteridium consisted principally of alkyl esters (92 %; C 40 –C 50 ) together with small amounts of n -alkanols (2 %; C 24 –C 32 ) and hydrocarbons (2%; C 27 –C 31 ). The esters comprised C 22 –C 32 alkanols randomly combined with C 20 – C 24 fatty acids.
Edward A. Baker, Robyn E. Gaskin
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Leaf wax alcohols inCoincya (Brassicaceae)
Journal of the American Oil Chemists' Society, 1994AbstractFree and ester alcohol compositions have been determined for leaf waxes in ten taxa belonging to the genusCoincya (Brassicaceae) on the Iberian Peninsula (Spain and Portugal). Size of leaf wax alcohols in the genusCoincya varies between 20 and 31 carbon atoms. This series is dominated by alcohols with an even number of carbon atoms.
Javier Vioque +2 more
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Lipids, 1974
AbstractWax coating the leaves and stems ofPortulaca oleracea consists of hydrocarbons (21%), esters (53%), acids (2%), alcohols (4%), diol monoesters (2%), and unidentified material (15%). Lesser amounts of esterified and free β‐amyrin and lupeol, stigmast‐4‐en‐3‐one and free diols also are present.
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AbstractWax coating the leaves and stems ofPortulaca oleracea consists of hydrocarbons (21%), esters (53%), acids (2%), alcohols (4%), diol monoesters (2%), and unidentified material (15%). Lesser amounts of esterified and free β‐amyrin and lupeol, stigmast‐4‐en‐3‐one and free diols also are present.
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Leaf wax n-alkane extraction: An optimised procedure
Organic Geochemistry, 2017Abstract Leaf wax n-alkanes are often extracted from modern plant material to describe their natural occurrence and understand the factors determining their potential as biomarkers for climate reconstruction. Despite several studies on the topic no standardised approach for n-alkane extraction from leaves has been yet devised.
Nicolò Ardenghi +3 more
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Diesters of diols in wheat leaf wax
Lipids, 1971AbstractDiesters have been isolated from the leaf wax of spring wheat,Triticum aestivum, L. (Selkirk variety) by chromatography. The diesters, which form 3% of the wax and which were shown by gas liquid chromatography to be a mixture of C51−C60 esters, consist largely oftrans 2‐docosenoic andtrans 2‐tetracosenoic acid esters of 1,9‐nonanediol, 1,10 ...
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Inheritance of Leaf Epicuticular Wax Content in Rice
Crop Science, 1992Leaf epicuticular wax (EW) is a trait related to drought resistance. Epicuticular wax content is low in rice (Oryza sativa L.) relative to other crops, but great differences among rice cultivars have been observed, as great as 100%. Traditional drought‐resistant upland rices have relatively higher EW content than modern irrigated lowland rices.
M. Mahiul Haque +2 more
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