منابع مشابه
Tubes go apical
or microtubule asters, just as with life in general, sometimes you get stuck in a corner. And, say Cendrine Faivre-Moskalenko and Marileen Dogterom (FOM Institute for Atomic and Molecular Physics, Amsterdam, Netherlands), it can take a catastrophe to get things moving again. Dogterom has been trying to reproduce aster behavior in the minimal environment of a microfabricated chamber. Her beads, ...
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A 47-year-old man presented with a 1 year history of left epiphora. Six years previously it had been treated surgically in Turkey, although surgical details were not available and no external scars were evident. His vision was Snellen 6/6 right and 6/60 left, the decreased left acuity being a result of past stromal herpetic keratitis. All four puncta were patent and the right lacrimal drainage ...
متن کاملApical transportation revisited or 'where did the K-file go'?
CASE REPORT This case report describes the outcome of a number of retreatments on a failed root filling in a maxillary first molar. The patient wanted all amalgams replaced by tooth-coloured Cerec restorations, including one in a symptomless maxillary molar. This tooth had a pulpotomy or a poorly done root-canal treatment 10 years earlier. The molar was root-canal retreated before placing the C...
متن کاملSignaling with Ions: The Keystone for Apical Cell Growth and Morphogenesis in Pollen Tubes.
Pollen tubes (PTs) are one of the best characterized plant cell types in many respects. The identification of key players involved in tube growth offers the perspective of an integrative understanding of cell morphogenesis processes. One outstanding feature of PTs is their prominent dependence on ion dynamics to promote and regulate growth. Many reports have identified and characterized membran...
متن کاملPollen tubes exhibit regular periodic membrane trafficking events in the absence of apical extension.
The growing pollen tube provides an excellent single cell model system in which to study the mechanisms determining growth regulation, polarity and periodic behaviour. Previously, using FM4-64, we identified periodic movements within the apical vesicle accumulation that were related to the period of oscillatory growth. This suggested a more complex interdependence between membrane traffic, apic...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2002
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb1601rr3