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Laser microsurgery demonstrates that cytoplasmic strands anchoring the nucleus across the vacuole of premitotic plant cells are under tension. Implications for division plane alignment
TLDR
Laser microsurgery has been used to confirm that strands the premitotic nucleus to the cortex are under tension since the severed retract immediately upon severance. Expand
Confocal laser microscopy and three‐dimensional reconstruction of nucleus‐associated microtubules in the division plane of vacuolated plant cells
TLDR
The appearance and gradual reorganization of nucleus‐associated microtubules (NAMTs) over the premitotic period is described and it is revealed that the NAMTs are a major component of the phragmosome, and that they change from a radiating to a planar distribution concomitantly with the 'bunching' of cortical MTs to form the pre‐prophase band. Expand
Cell Division in Nautilocalyx Explants I. Phragmosome, Preprophase Band and Plane of Division
TLDR
Dedifferentiation and cell division in small explants of Nautilocalyx lynchii (Hook f.) Sprague are described and the phragmosome seemed to play an important part in guiding the cell plate to the narrow zone of the cell wall opposite which the band of microtubules had been present some hours earlier. Expand
The Lignin of Populus nigra L. cv. ‘Italica’ and Some Other Salicaceae
spricht dem bei Koniferen am häufigsten gefundenen Wert. Die Arabinosekonzentration der Hydrolysate erreichte gerade die Nachweisgrenze der Analysenmethode. Die Werte sind daher ungenau. So könnenExpand
The Formation of Adventitious Organs
TLDR
Small explants from the abaxial side of Nautilocalyx leaves were grown under conditions enabeling direct observation of the epidermis, and with low auxin concentrations a polarity in root formation was found. Expand
Regulation of the Plane of Cell Division in Vacuolated Cells I. The Function of Nuclear Positioning and Phragmosome Formation
TLDR
It is suggested that in vacuolated cells the cy toplasmic strands are important to position the nucleus and that a combination of cytoplasmaic strands, PS, and cortical division site is needed to locate a new cell wall at a predetermined place in the cell. Expand
Nuclear envelope radiating microtubules in plant cells during interphase mitosis transition
TLDR
It is hypothesized that the microtubules radiating from the nucleus Initially play a role in the mobilization of the nucleus while later on a stabilized part of this array anchors the nucleus in the plane of cell division, and thus forms a cytoskeletal link between nucleus and division site. Expand
Cell Division in Nautilocalyx Explants
TLDR
Phragmoplast and cell-plate growth were studied in living leaf-epidermis cells of Nautilocalyx lynchii and the mean duration of cytokinesis during tangential division in fusiform cambial cells of Fraxinus was 10.5 hours. Expand
Cell Division in Nautilocalyx Explants III. Effects of 2,6-dichlorobenzonitrile on Phragmosome, Band of Microtubules and Cytokinesis.
TLDR
Results indicate that the DCB-inhibition of cytokinesis does not result from interference with phragmosome and BMT, two structures which are probably involved in cytokineses and in the determination of the plane of cell division. Expand
Regulation of the plane of cell division in vacuolated cells
TLDR
Results suggest that the division site is chosen during the formation of the PS, which shows that most cells which had not yet formed a PS could be induced to form a cell wall in a new direction. Expand
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