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Cytokinin controls the cell cycle at mitosis by stimulating the tyrosine dephosphorylation and activation of p34cdc2-like H1 histone kinase
TLDR
Plants can control cell division by tyrosine phosphorylation of Cdc2 but differ from somatic animal cells in coupling this mitotic control to hormonal signals. Expand
Cell cycle control by timer and sizer in Chlamydomonas
TLDR
It is reported here that both time-or size-dependent controls do function in Chlamydomonas since cycle duration is under timer control and cell size determines the number of division rounds committed at the end of each cycle, and hence whether 2, 4, 8 or 16 daughter cells are formed. Expand
Actin dynamics during the cell cycle in Chlamydomonas reinhardtii.
TLDR
The observations, demonstrating dynamic reorganization of actin during the cell cycle, suggest a role for actin that may include the movement of basal bodies toward the spindle poles in mitosis and the formation of the cleavage furrow during cytokinesis. Expand
Mitotic cyclin distribution during maize cell division: Implications for the sequence diversity and function of cyclins in plants
SummaryCyclin proteins are components of the regulatory system that controls the orderly progression of the events of cell division. Their sub-cellular location, as well as their fluctuatingExpand
PLANT MITOSIS PROMOTING FACTOR DISASSEMBLES THE MICROTUBULE PREPROPHASE BAND AND ACCELERATES PROPHASE PROGRESSION IN TRADESCANTIA
TLDR
These studies provide the first direct evidence that the mitotically‐active form of plant MPF can drive disassembly of preprophase band MTs, chromosome condensation and initiation of mitosis in plant cells. Expand
THE CELL CYCLES OF CHLAMYDOMONAS AND CHLORELLA
TLDR
In Chlorella and Chlamydomonas two periods of relatively constant duration determine total cell cycle length and cell size is stabilised by control of whether 2, 4, 8 or 16 daughter cells are formed by an influence of mother cell mass. Expand
The Cytokinin Requirement for Cell Division in Cultured Nicotiana plumbaginifolia Cells Can Be Satisfied by Yeast Cdc25 Protein Tyrosine Phosphatase. Implications for Mechanisms of Cytokinin Response
TLDR
The results suggest a biochemical mechanism for several previously described transgene phenotypes in whole plants and suggest that a primary signal from cytokinin leading to progression through mitosis is the activation of CDK by dephosphorylation of Tyr. Expand
Expression of Genomic AtCYCD2;1 in Arabidopsis Induces Cell Division at Smaller Cell Sizes: Implications for the Control of Plant Growth[C][OA]
The Arabidopsis (Arabidopsis thaliana) CYCD2;1 gene introduced in genomic form increased cell formation in the Arabidopsis root apex and leaf, while generating full-length mRNA, raised CDK/CYCLINExpand
The growth and division of the single mitochondrion and other organelles during the cell cycle ofChlorella, studied by quantitative stereology and three dimensional reconstruction
SummaryDuring the cell cycle ofChlorella fusca var.vacuolata 211-8p, the growth of individual organelles is not restricted and holds their average percentage contribution to total cell volume atExpand
p34cdc2 Related Proteins in Control of Cell Cycle Progression, the Switch Between Division and Differentiation in Tissue Development, and Stimulation of Division by Auxin and Cytokinin
TLDR
Within the cell cycle, hormone-dependent control points were identified at late G1 and at mitotic initiation by measurement of nuclear DNA content and the timing of activation of p34cdc2 and cell division, in Nicotiana suspension culture cells restimulated with hormone. Expand
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