Levels of endogenous cytokinins, indole-3-acetic acid and abscisic acid during the cell cycle of synchronized tobacco BY-2 cells.
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TLDR
It is suggested that zeatin‐ and dihydrozeatin‐type cytokinins might play a specific regulatory role in the progression of the plant cell cycle.About:
This article is published in FEBS Letters.The article was published on 1996-08-05 and is currently open access. It has received 153 citations till now. The article focuses on the topics: Zeatin & Plant hormone.read more
Citations
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Journal ArticleDOI
Cytokinin-Deficient Transgenic Arabidopsis Plants Show Multiple Developmental Alterations Indicating Opposite Functions of Cytokinins in the Regulation of Shoot and Root Meristem Activity
TL;DR: The results are consistent with the hypothesis that cytokinins have central, but opposite, regulatory functions in root and shoot meristems and indicate that a fine-tuned control of catabolism plays an important role in ensuring the proper regulation of cytokinin functions.
Journal ArticleDOI
Regulation of plant growth by cytokinin
TL;DR: It is suggested that cytokinins are an important regulatory factor of plant meristem activity and morphogenesis, with opposing roles in shoots and roots.
Journal ArticleDOI
Cytokinin Activation of Arabidopsis Cell Division Through a D-Type Cyclin
TL;DR: Results suggest that cytokinin activates Arabidopsis cell division through induction of CycD3 at the G1-S cell cycle phase transition.
Journal ArticleDOI
In planta functions of the Arabidopsis cytokinin receptor family
Masayuki Higuchi,Melissa S. Pischke,Ari Pekka Mähönen,Kaori Miyawaki,Yukari Hashimoto,Motoaki Seki,Masatomo Kobayashi,Kazuo Shinozaki,Tomohiko Kato,Satoshi Tabata,Ykä Helariutta,Michael R. Sussman,Tatsuo Kakimoto +12 more
TL;DR: Results confirm that cytokinins are a pivotal class of plant growth regulators but provide no evidence that cytkinins are required for the processes of gametogenesis and embryogenesis.
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Expression of cytokinin biosynthetic isopentenyltransferase genes in Arabidopsis: tissue specificity and regulation by auxin, cytokinin, and nitrate.
TL;DR: The rate-limiting step of cytokinin biosynthesis in Arabidopsis thaliana Heynh is catalyzed by ATP/ADP isopentenyltransferases, and by their homologs AtIPT3, atIPT5, AtipT6, At IPT7, and AtIPt8, and they were expressed ubiquitously, with highest expression in proliferating tissues.
References
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Journal ArticleDOI
Esterification of Fatty Acids with Diazomethane on a Small Scale
H. Schlenk,Joanne L. Gellerman +1 more
Book ChapterDOI
Tobacco BY-2 Cell Line as the “HeLa” Cell in the Cell Biology of Higher Plants
TL;DR: The preparation of protoplasts from TBY-2 cells, from which the isolation of organelles is easy, has been established and using the synchrony system, the change in the cell cycle progression of TBY -2 cells successfully followed thechange in cytoskeletons.
Plant hormones : physiology, biochemistry and molecular biology
TL;DR: This chapter discusses the role of hormones in plant growth, development, and senescence, and the mechanism of action of auxin and cytokinin in prokaryotes, as well as other aspects of hormone synthesis and action.
Journal ArticleDOI
Aphidicolin Prevents Mitotic Cell Division by Interfering With the Activity of DNA Polymerase-Alpha
TL;DR: Evidence is reported that prevention of cell division by aphidicolin in sea urchin embryos is due to selective inhibition of DNA polymerase-α activity, which implies a functional role for this polymerase activity during replication of DNA.
Journal ArticleDOI
Inhibition of Cyclin‐Dependent Kinases by Purine Analogues
Walter Filgueira de Azevedo,Sophie Leclerc,Laurent Meijer,Libor Havlíček,Miroslav Strnad,Sung-Hou Kim +5 more
TL;DR: Through its unique selectivity olomoucine provides an anti-mitotic reagent that may preferentially inhibit certain steps of the cell cycle and inhibits the licensing factor, an essential replication factor ensuring that DNA is replicated only once in each cell cycle.