Transient etiolation: protochlorophyll(ide) and chlorophyll forms in differentiating plastids of closed and breaking leaf buds of horse chestnut (Aesculus hippocastanum)
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چکیده
منابع مشابه
Transient etiolation: protochlorophyll(ide) and chlorophyll forms in differentiating plastids of closed and breaking leaf buds of horse chestnut (Aesculus hippocastanum).
An accompanying paper reports the accumulation of photoactive protochlorophyllide (Pchlide) in the innermost leaf primordia of buds of many tree species. In this paper, we describe plastid differentiation, changes in pigment concentrations and spectral properties of bud scales and leaf primordia of horse chestnut (Aesculus hippocastanum L.) from January until the end of bud break in April. The ...
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Submit Manuscript | http://medcraveonline.com glycosides and lactone glycosides, including protoaesigenin, barringeogenol-C, {reference 2) hippocaesculin, 6-E-glucoside7-hydroxy coumarin, and others, collectively called aescin (or occasionally escin). It also provides aesculic acid, aesculinic acid, an appreciable level of flavonoids (esculin, esculetin, rutin, kaempferol), tannins, starches, m...
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In addition to the well reported beneficial effects of horse chestnut (Aesculus hippocastanum) extracts on venous insufficiency and associated conditions, such preparations also have many potential positive pharmacological effects on the skin. Extracts from this species, and in particular, those based on horse chestnut seeds, contain saponins, known collectively as 'aescin', which have a gentle...
متن کاملThe content of phenolic compounds in leaf tissues of white (Aesculus hippocastanum L.) and red horse chestnut (Aesculus carea H.) colonized by the horse chestnut leaf miner (Cameraria ohridella Deschka & Dimić).
Normally, plant phenolics are secondary metabolites involved in the defense mechanisms of plants against fungal pathogens. Therefore, in this study we attempted to quantify and characterize phenolic compounds in leaves of white and red horse chestnut with leaf miner larvae before and after Cameraria ohridella attack. A total of 17 phenolic compounds belonging to the hydroxycinnamic acid, flavan...
متن کاملOptical properties of bud scales and protochlorophyll(ide) forms in leaf primordia of closed and opened buds.
The transmission spectra of bud scales of 14 woody species and the 77 K fluorescence emission spectra of the innermost leaf primordia of closed and opened buds of 37 woody species were studied. Pigment concentrations were determined in some species. Bud scales had low transmittance between 400 and 680 nm with a local minimum around 680 nm. Transmittance increased steeply above 680 nm and was > ...
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ژورنال
عنوان ژورنال: Tree Physiology
سال: 2006
ISSN: 0829-318X,1758-4469
DOI: 10.1093/treephys/26.8.1087