. The cell; outlines of general anatomy and physiology. Cells; Anatomy; Physiology; Cells; Anatomy; Physiology. Fig 94.—Three stages in the division of the pollen mother-cells of Ffitillaria persica (after Strasbarger, Fig. 114, Eng. Kdition) :/separation of the daughter segments ; 3 for- mation of daughter coils and of the cell-plate; 7i position of the nuclear segments in the daughter nuclei and in the developed partition wall. ( x 800.) separated into two groups, delicate connecting fibrils are seen to be stretched between them ; these, according to Strasburger (^VI. 73), are derived from t
. The cell; outlines of general anatomy and physiology. Cells; Anatomy; Physiology; Cells; Anatomy; Physiology. Fig 94.—Three stages in the division of the pollen mother-cells of Ffitillaria persica (after Strasbarger, Fig. 114, Eng. Kdition) :/separation of the daughter segments ; 3 for- mation of daughter coils and of the cell-plate; 7i position of the nuclear segments in the daughter nuclei and in the developed partition wall. ( x 800.) separated into two groups, delicate connecting fibrils are seen to be stretched between them ; these, according to Strasburger (^VI. 73), are derived from the central portions of the spindle fibrils (Fig. 94 /). After a time, in the middle of the connecting fibrils, small swellings, which look like glistening granules, are formed (Fig. 94 g). They are most regularly arranged, so that they are seen in optical section to lie close to one another in a row. Thus collectively they form a disc, composed of granules, and situated in the division plane between the two daughter-nuclei; this disc has been called the cell plate by Strasburger. Flemming (VI. 13") considers, that these are represented in a rudimentary form in animal cells in the above-mentioned (p. 189) central granules, which are found in a few objects. The cell plate is of the greatest importance in plants, in connection with the formation of the cellulose partition wall, which is the final stage in the whole process of division (Fig. 94 h). " The cell plate," as described by Strasburger, " ultimately extends over the whole diameter of the cell, its elements fusing together to form a partition wall, which divides the mother-cell into two ; A thin layer of cellulose may soon be distinguished. Meanwhile the connecting. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original
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Keywords: ., bookcentury1800, booksubjectanatomy, booksubjectphysiology, booky
