نتایج جستجو برای: phytol
تعداد نتایج: 470 فیلتر نتایج به سال:
The authors wish to correct Scheme 1, and Figures 1, 4 and 7 in [1] as follows. Scheme 1 should include phytol and fatty acid.
Chlorophyll breakdown occurs in different green plant tissues (e.g. during leaf senescence and in ripening fruits). For different plant species, the PHEOPHORBIDE A OXYGENASE (PAO)/phyllobilin pathway has been described to be the major chlorophyll catabolic pathway. In this pathway, pheophorbide (i.e. magnesium- and phytol-free chlorophyll) occurs as a core intermediate. Most of the enzymes invo...
Chlorophyll breakdown occurs in different green plant tissues (e.g. during leaf senescence and in ripening fruits). For different plant species, the PHEOPHORBIDE A OXYGENASE (PAO)/phyllobilin pathway has been described to be the major chlorophyll catabolic pathway. In this pathway, pheophorbide (i.e. magnesiumand phytol-free chlorophyll) occurs as a core intermediate. Most of the enzymes involv...
the volatile constituents of aerial parts of euphorbia aellenii rech.f. and e. microsciadea boiss. were analyzed by gas chromatography (gc) and gc-mass spectrometry (ms) methods. the main volatile constituents of e. aellenii were phytol isomer (47.3%), camphene (31.9%) and caryophyllene oxide (20.6%), while the major volatile components of e. microsciadea were trans-anethole (74.5%), limonene (...
Studies utilizing mevalonic acid-2-(14)C and D(2)O as precursors failed to provide evidence for an appreciable rate of endogenous biosynthesis of phytanic acid in a patient with Refsum's disease. Orally administered tracer doses of phytol-U-(14)C were well absorbed both by seven normal control subjects (61 to 94%) and by two patients with Refsum's disease (74 and 80%). The fraction of the absor...
The bacteriochlorophyll of the purple photosynthetic bacterium Rhodobacter sphaeroides is esterified with phytol. The presence of this alcohol moiety is essential for the correct assembly of the photosynthetic apparatus. Despite this, and the fact that R. sphaeroides is widely used for the study of structure-function relationships in photosynthesis, the molecular genetics of the steps in which ...
A comparative study of the chemical composition of essential oils of two very similar species of the Verbenaceae family (Lantana camara and L. radula) revealed that the main components of essential oil of L. camara were germacrene-D (19.8%) and E-caryophyllene (19.7%), while those of L. radula were E-caryophyllene (25.3%), phytol (29.2%) and E-nerolidol (19.0%). We have hypothesized that the ob...
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