Preprophase bands of microtubules and the cell cycle: Kinetics and experimental uncoupling of their formation from the nuclear cycle in onion root-tip cells

Planta ◽  
1988 ◽  
Vol 174 (4) ◽  
pp. 518-526 ◽  
Author(s):  
Y. Mineyuki ◽  
S. M. Wick ◽  
B. E. S. Gunning
Keyword(s):  
Cell Cycle ◽  
Root Tip ◽  
Cell Cycle Kinetics ◽  
Onion Root ◽  
Nuclear Cycle ◽  
Tip Cells ◽  
Root Tip Cells ◽  
Preprophase Bands

C3-P-15Spatio-temporal differences between RanGAP and microtubule bands during the development of preprophase bands in onion root tip cells

Microscopy ◽  
2015 ◽  
Vol 64 (suppl 1) ◽  
pp. i133.2-i133
Author(s):  
Takatoshi Yabuuchi ◽  
Tomonori Nakai ◽  
Daisuke Yamauchi ◽  
Seiji Sonobe ◽  
Yoshinobu Mineyuki
Keyword(s):  
Root Tip ◽  
Onion Root ◽  
Temporal Differences ◽  
Tip Cells ◽  
Root Tip Cells ◽  
Preprophase Bands

Onset of mitosis after cell cycle blockage induced by cycloheximide in root tip cells

1984 ◽  
Vol 40 (2) ◽  
pp. 202-203
Author(s):  
F. Lévy ◽  
J. Lipszyc
Keyword(s):  
Cell Cycle ◽  
Root Tip ◽  
Tip Cells ◽  
Root Tip Cells

INATE AND PHOTO-CONTROLLED MITOTIC RHYTHMS IN ONION ROOT-TIP CELLS

1973 ◽  
Vol 15 (4) ◽  
pp. 667-670 ◽  
Author(s):  
Richard C. Bishop ◽  
Richard M. Klein
Keyword(s):  
Mitotic Activity ◽  
Diurnal Rhythm ◽  
Low Temperatures ◽  
Root Tip ◽  
Fluorescent Light ◽  
Onion Root ◽  
Seed Imbibition ◽  
Tip Cells ◽  
Root Tip Cells ◽  
Red Radiation

A four-peaked diurnal rhythm in mitotic activity of dark-grown onion root-tip cells is initiated upon seed imbibition, damps rapidly and is lost within 5 days. It is abolished by continuous white fluorescent light, by continuous blue, green or red radiation, by low temperatures, high osmotica or anoxia. Photoperiodic light controls the well-known two-peaked persistent rhythm. The nature of the zeitgeber for either the inate or the photoperiodically-controlled rhythms is unknown.

Depolymerization of microtubule arrays in root tip cells by oryzalin and their recovery with modified nucleation patterns

1988 ◽  
Vol 66 (12) ◽  
pp. 2353-2366 ◽  
Author(s):  
A. L. Cleary ◽  
A. R. Hardham
Keyword(s):  
Immunofluorescence Microscopy ◽  
Root Tip ◽  
Cell Cortex ◽  
Microtubule Depolymerization ◽  
Higher Plant ◽  
Resistant Plant ◽  
Normal Functional ◽  
Tip Cells ◽  
Root Tip Cells ◽  
Preprophase Bands

Immunofluorescence microscopy with anti-tubulin has been used to study the effects of the dinitroaniline herbicide, oryzalin, on microtubule arrays in root tip cells of a number of species of plants. All species of grasses that were examined showed rapid microtubule depolymerization, as did the nongrass Potamogeton. All other nongrass monocotyledons and dicotyledons tested required much longer treatment times to achieve microtubule depolymerization in the majority of root tip cells. Correlated immunofluorescence and electron microscopy have been used to obtain details of depolymerization and repolymerization of microtubules during treatment and recovery in a resistant plant, Zinnia elegans, and in a sensitive plant, Lolium rigidum. Although rates of disruption differ, both plants displayed similar patterns of microtubule depolymerization and repolymerization. The microtubules that comprise the different categories of array in the root tip cells were differentially sensitive to oryzalin. In order of increasing stability they were as follows: polar microtubules in mitotic cells < interphase arrays < preprophase bands ≤ phragmoplasts [Formula: see text] kinetochore microtubules. During recovery, microtubules are nucleated in the cell cortex in interphase and at the kinetochores during mitosis. The cells are able to reinstate cortical interphase arrays, preprophase bands, and phragmoplasts of apparently normal organization, but not normal, functional spindles. Our results provide basic information on the use of oryzalin in studying the organization and dynamics of microtubule arrays in higher plant cells.

Cytological investigations on onion root-tip cells treated with some cigarette smoke constituents

1974 ◽  
Vol 65 (5) ◽  
pp. 311-313 ◽  
Author(s):  
P. R. BHALLA ◽  
R. C. ARNOLD ◽  
P. S. SABHARWAL
Keyword(s):  
Cigarette Smoke ◽  
Root Tip ◽  
Onion Root ◽  
Tip Cells ◽  
Root Tip Cells

Effect of Reserpine Phosphate on Dividing Onion Root-tip Cells

1958 ◽  
Vol 98 (2) ◽  
pp. 252-254 ◽  
Author(s):  
M. R. Grimm ◽  
F. C. Rull ◽  
R. L. Mayer
Keyword(s):  
Root Tip ◽  
Onion Root ◽  
Tip Cells ◽  
Root Tip Cells

scholarly journals DURATION OF MITOTIC CELL CYCLE IN THE ROOT TIP CELLS OF MALE RUMEX ACETOSA

1973 ◽  
Vol 48 (1) ◽  
pp. 19-26 ◽  
Author(s):  
YOZO KUROKI ◽  
RYUSO TANAKA
Keyword(s):  
Cell Cycle ◽  
Mitotic Cell ◽  
Root Tip ◽  
Mitotic Cell Cycle ◽  
Rumex Acetosa ◽  
Tip Cells ◽  
Root Tip Cells
Sign in / Sign up

Export Citation Format

Share Document