PARTICLE ARRANGEMENTS IN PROPLASTIDS OF TRITICUM VULGARE L. SEEDLINGS
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چکیده
منابع مشابه
Particle Arrangements in Proplastids of Triticum Vulgare L. Seedlings
Particles having ribosome-like characteristics are described in proplastids of dark-grown wheat seedlings as the membranes of the prolamellar body become transformed, under the influence of light, into grana and fret membranes. Three arrangements of particles were noted: (1) a random distribution of discrete particles; (2) particles occurring in helices or parallel rows; and (3) particles arran...
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The most striking response of light-grown wheat seedlings to sublethal doses (0.1 m) of the herbicide Sirmate (3,4-dichlorobenzyl methylcarbamate) was the formation of achlorophyllous leaves. This herbicide did not inhibit seed germination and the leaves emerged normally, except that they had a bleached appearance. After 9 days, these plants died, presumably of starvation due to depletionofendo...
متن کاملThe determination of tocopherols and isoprenoid quinones in the grain and seedlings of wheat (Triticum vulgare).
1. A comparison is made of several procedures for the extraction of tocopherols and isoprenoid quinones from plant tissues. 2. Gradient-elution column chromatography on acid-washed alumina efficiently separates the isoprenoid quinones and tocopherols into groups that can then be assayed spectrophotometrically or, with the tocopherols, separated into their individual components and determined by...
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Aims: The clinical effects of a Triticum vulgare-containing mouth gel on oral mucositis were evaluated. Presentation of Cases: Five children suffering from oral mucositis due to chemo/radiotherapy were treated with a Triticum vulgare-containing mouth gel, spreaded three times in a day as thin layer on the mucosal lesions for 14 days. Control visits were conducted at the days 4th, 7th and 14th. ...
متن کاملChlorophyll Fluorescence of Barley (h. Vulgare L.) Seedlings Grown in Excess of Cd*
The effect of excess of cadmium (Cd) on chlorophyll fluorescence of barley seedlings was studied. The leaves were dark-adapted and then illuminated at 10 different light intensities within the range of 70–1600 μmol.m–2.s–1 photosynthetically active radiation (PAR). It was found that Cd decreases the chlorophyll fluorescence parameters in dark-adapted leaves: ground (Fo), maximal (Fm) and variab...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1967
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.33.2.243