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'Epicuticular Wax Composition' in keywords

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1	Author	Paul-Gerhard Gülz, Jutta Bodden, Edith Müller, Franz-Josef Marner	Requires cookie*
	Title	Epicuticular Wax of Euphorbia aphylla Brouss. ex. Willd., Euphorbiaceae
	Abstract	Quantity and composition of epicuticular wax of Euphorbia aphylla were examined. The wax contained the common lipid components «-alkanes, wax esters, pr. alcohols, fatty acids and in traces aldehydes and acetates all occurring in homologous series. Additionally, several triter-penols such as ß-amyrin, a-amyrin, lupeol and simiarenol were found. With the exception of simiarenol these triterpenols occurred free as well as esterified with acetic acid and fatty acids. The ketones, oleanen-3-one, ursen-3-one and lupen-3-one have also been identified.
	Reference	Z. Naturforsch. 43c, 19—23 (1988); received September 8/October 8 1987
	Published	1988
	Keywords	aphylla, Epicuticular Wax Composition, Triterpenols, Triterpenones, Triterpenol Esters
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	TEI-XML for	default:Reihe_C/43/ZNC-1988-43c-0019.pdf
	Identifier	ZNC-1988-43c-0019
	Volume	43

2	Author	Sabine Hennig, Paul-Gerhard Gülz, Kurt Hängst	Requires cookie*
	Title	Organ Specific Composition of Epicuticular Waxes of C is tus albidus L., Cistaceae
	Abstract	Epicuticular waxes from various organs of Cistus albidus L. showed always an organ specific composition. Leaf wax contained homologous series of very long chained and saturated wax components, such as hydrocarbons, wax esters, fatty acids and alcohols. Additionally in this wax extract triterpenoids and great amounts of resin were found. Sepal wax had nearly the same wax composi-tion like that of leaves with a trend to shorter chain lengths and not so great amounts of resin. Petal wax contained the common wax lipids, too, but the homologous series showed a shift to shorter chain lengths, and great amounts of unsaturated lipids were found in hydrocarbons, wax esters and fatty acids. In addition triterpenol esters were found but no resin. Stamen wax was similar to that of petals. The shift to shorter chain lengths and the presence of great amounts of unsaturated lipids showed a characteristic distribution for stamens. Seed wax contained only saturated wax lipids. In contrast to leaf waxes, the short chain com-pounds were dominating, and triterpenoids and resin were missing. The chemical wax composition of the various organs of C. albidus was correlated to the surface structures of these organs by SEM pictures.
	Reference	Z. Naturforsch. 43c, 806—812 (1988); received August 25 1988
	Published	1988
	Keywords	Cistus albidus, Epicuticular Wax Composition, Organ Specific Patterns
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	TEI-XML for	default:Reihe_C/43/ZNC-1988-43c-0806.pdf
	Identifier	ZNC-1988-43c-0806
	Volume	43

3	Author	R.B N Prasad, Paul-Gerhard Gülz	Requires cookie*
	Title	Epicuticular Waxes from Leaves of Maple (Acer pseudoplatanus L.)
	Abstract	The epicuticular waxes from the leaves of maples (Acer pseudoplatanus L.) contained hydro carbons (6.9%), wax esters (5.5%), aldehydes (38.1%), primary alcohols (10.2%) and fatty acids (17.1%). In addition to these common wax lipids, benzyl acyl esters (2.1%) and triterpe noids were also present. ß-Sitosterol, ß-amyrin and 24-methylene-cycloartenol were found in the form of acetates (14.4%). ß-Amyrin was also present as free alcohol (4.9%) and esterified with long chain fatty acids (~ 0.7%).
	Reference	Z. Naturforsch. 45c, 599—601 (1990); received February 13/April 6 1990
	Published	1990
	Keywords	Acer pseudoplatanus L, Leaves, Epicuticular Wax Composition
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	TEI-XML for	default:Reihe_C/45/ZNC-1990-45c-0599.pdf
	Identifier	ZNC-1990-45c-0599
	Volume	45

4	Author	P.-G Gülz, E. Müller	Requires cookie*
	Title	Seasonal Variation in the Composition of Epicuticular Waxes of Quevcus robur Leaves
	Abstract	The epicuticular leaf waxes of Quercus robur were analyzed continuously over a two years vegetation period with preparation every week from April to November. The folded leaflets in buds have waxes quite different in yield and composition from those of mature leaves. They contain homologous series of hydrocarbons, wax esters, primary alco hols, fatty acids and triterpenoids from the beginning, but not aldehydes. After leaf unfolding a dynamic biosynthesis of alcohols, aldehydes and fatty acids is observed in May and June. Wax content is doubled per dry weight or in cm2 leaf surface area and 80-fold per one leaf in that time. During leaf development tetracosanol becomes the dominant epicuticular wax component comprising ca. 40% of the wax. In both years of the study a reactivation of wax ester biosynthesis is observed in October and November. Esters with chain length C36 and C38 increased particularly. From July to November the wax composition remained nearly constant within mean values and their stand ard deviations. Within the two years studied most values concerning wax composition are reproducible and are therefore genetically determined. In spring the growing processes are influenced by climatic factors.
	Reference	Z. Naturforsch. 47c, 800—806 (1992); received June 9 1992
	Published	1992
	Keywords	Quercus robur, Fagaceae, Leaves, Epicuticular Wax Composition, Seasonal Variation
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	TEI-XML for	default:Reihe_C/47/ZNC-1992-47c-0800.pdf
	Identifier	ZNC-1992-47c-0800
	Volume	47

5	Author	M. Uham, M. Ad, Nazir, W. Aqar, Ahm Ad, NaeemA. Khtar, Rabi, Shafiq Ahm, K. Han	Requires cookie*
	Title	Epicuticular Leaf Wax of Euphorbia helioscopia L. (Euphorbiaceae)
	Abstract	The epicuticular wax of Euphorbia helioscopia was fractionated into fatty acids, hydrocar bons, wax esters, aldehydes, methyl esters, triterpenol acetates, alcohols, sterols, and polar components. The com position o f the fractions was determined by GC, GC-MS, HPLC. Main com ponents within these lipid classes are hentriacontane, wax esters C ^ and C4g, octacosanal, hexacosanol and octacosanol, hexadecanoic acid, and ß-sitosterol. Lupeol and its acetate were also confirmed.
	Reference	Z. Naturforsch. 48c, 5 (1993); received September 23 1992
	Published	1993
	Keywords	helioscopia, Epicuticular Wax Composition, Fatty Acids, Hydrocarbons, Wax Esters
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	TEI-XML for	default:Reihe_C/48/ZNC-1993-48c-0005.pdf
	Identifier	ZNC-1993-48c-0005
	Volume	48

6	Author	P.-GG. Ülz, E. M. Üller, T. H. Errm An	Requires cookie*
	Title	Chemical Composition and Surface Structures of Epicuticular Leaf Waxes from Castanea sativa and Aesculus hippocastanum
	Abstract	Epicuticular leaf waxes of Castanea sativa and Aesculus hippocastanum contain the same lipids in form of homologous series o f hydrocarbons, wax esters, aldehydes, primary alcohols and fatty acids in similar concentrations without any main component dominating. In Ae. hip pocastanum wax acetates are present, additionally. Both waxes are found to contain triter-penols and triterpenol esters in remarkable amounts. ß-Amyrin, a-amyrin and lupeol are pres ent in both plant waxes, in Ae. hippocastanum wax friedelanol and friedelanone, additionally. The epidermis o f both plants are covered with a thin continuous wax layer without crystal loids. But the adaxial leaf surface o f C. sativa shows granular wax sculptures and therefore a different micromorphological ultrastructure for both leaf sides.
	Reference	Z. Naturforsch. 47c, 661—666 (1992); received March 12/May 20 1992
	Published	1992
	Keywords	Castanea sativa, Aesculus hippocastanum, Leaves, Epicuticular Wax Composition, Surface Structures, Scanning Electron Microscopy
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	TEI-XML for	default:Reihe_C/47/ZNC-1992-47c-0661.pdf
	Identifier	ZNC-1992-47c-0661
	Volume	47