By U. B. Sleytr (auth.), Prof. Dr. Oswald Kiermayer (eds.)
ISBN-10: 3709186021
ISBN-13: 9783709186022
ISBN-10: 3709186048
ISBN-13: 9783709186046
In 1958 E. BUNNING released a publication within the former sequence "Proto plasmatologia" entitled "Polaritat und inaquale Teilung des pflanzlichen Protoplasten" (polarity and unequal department of the plant protoplast) during which for the 1st time result of experimental plant cytomorphogenesis have been re seen. This publication was once established thoroughly on gentle microscopic observations and quite uncomplicated experimental concepts. considering then our wisdom of simple cytomorphogenetic mechanisms has enormously elevated, in particular with the creation of recent ultrastructural, biochemical and complex experi psychological equipment in order that the sphere of cytomorphogenesis in our days might be thought of a separate self-discipline in the basic box of mobile biology. This ebook, "Cytomorphogenesis in Plants", represents an important try and compile present wisdom during this box of analysis on a related foundation. regrettably huge, immense gaps in our figuring out of the underlying ideas of cytomorphogenetic occasions nonetheless exist. hence it appeared cause capable of current a publication composed of person chapters, every one written through specialists for an outlined experimental process. every one bankruptcy symbolize a separate treatise with its personal references, therefore it was once impossible to prevent a few overlap either within the textual content and within the literature of the chapters with no destroying the uni formity of the respective article.
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Example text
1971), and the absence of distinct absorption peaks in this region supports an interpretation of low crystallinity as compared to cellulose from Acetobacter or Valonia, which yield as many as six peaks in this region (MARRINAN and MANN 1956, LIANG and MARCHESSAULT 1959, MCCALL et al. 1971). The peaks in the 1,600-1,800 cm- 1 region indicate the presence of protein (MITCHELL and 33 Scale Formation in Flagellates SCURFIELD 1970, PARADIES et al. 1977), supporting the finding of protein in the scale subcomponents, especially the covalently-bound protein moiety accounting for more than 30% by weight of scale cellulose (HERTH et al.
Courtesy of J. Wiley. X 8,500. Fig. 2. Pleurochrysis scale, negatively stained with uranyl acetate. The amorphous polysaccharide has been hydrolyzed so that the quadriradial network and spiral microfibrils would be more evident. Note the "breakage loci" at the center of the scale (arrows). From BROWN and ROMANOVICZ 1976. Courtesy of J. Wiley. X 35,600. Fig. 3. Pleurochrysis scale, after extraction with 1 N HCl, negatively stained with phosphotungstic acid. The spiralling band pattern is apparent in the upper right quadrant.
3* 36 D. K. ROMANOVICZ orientation (Fig. 8), an unfolding of the radial microfibrils from the double row to the quadriradial arrangement was postulated (BROWN et al. 1973). Support for this proposal comes from the novel work of SLABY and SLABY (1979, personal communication) who envision the Z-stage cisterna as a point where cytoplasmic flow shifts from an inward spiral to an outward spiral, causing the separation of the two rows since they are attached to opposite cisternal membranes. With the quadriradial network a consistent feature of Prymnesiophycean scales, it would be expected that all species would share a common mechanism of quadriradial formation .
Cytomorphogenesis in Plants by U. B. Sleytr (auth.), Prof. Dr. Oswald Kiermayer (eds.)
by Thomas
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