Results 271 to 280 of about 52,373 (308)
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Cytokinin metabolism and the modulation of cytokinin activity in radish

Phytochemistry, 1985
Abstract The metabolism of zeatin, N 6 -(Δ 2 -isopentenyl) adenine, dihydrozeatin, zeatin- O -glucoside and dihydrozeatin- O -glucoside has been studied using derooted radish seedlings. The metabolites were identified by UV and GC/MS. The patterns of metabolism are compared and provide evidence that the O -glucosyl conjugates may be storage forms ...
Jim K. Heald   +2 more
openaire   +2 more sources

Algae and Cytokinins

Journal of Plant Physiology, 1986
Summary The occurrence of cytokinins in the algae has been the subject of several studies. The main motivation behind this research has been the preoccupation with the utilization and exploitation of the algae as soil conditioners and fertilizers. These hormones have been detected, by bioassay and more recently through the use of high-performance ...
J. Van Staden, P. A. Mooney
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Plant cytokinin signalling

Essays in Biochemistry, 2015
Cytokinin is an essential plant hormone that is involved in a wide range of plant growth and developmental processes which are controlled through its signalling pathway. Cytokinins are a class of molecules that are N6-substituted adenine derivatives, such as isopentenyl adenine, and trans- and cis-zeatin, which are common in most plants. The ability to
Erika A. Keshishian, Aaron M. Rashotte
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Cytokinins in Plants

1967
Publisher Summary This chapter focuses on the group of plant hormones called cytokinins, which are defined as compounds that induce cell division in plant cells in cooperation with an auxin. Gibberellins move in plants in a nonpolar fashion, whereas the cytokinins have been reported to move like auxins in a basipetal polar fashion.
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Cytokinin signaling

Current Opinion in Plant Biology, 1998
Although cytokinin plays a central role in plant development, our knowledge of the biosynthesis, distribution, perception and signal transduction of cytokinin is limited. Recent molecular-genetic studies have, however, implicated involvement of a two-component system in cytokinin signal transduction.
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Metabolites of Cytokinins [PDF]

open access: possible, 1980
The view that root-produced cytokinin moves in the xylem to the shoot where it regulates development and senescence is now a widely accepted concept in developmental botany. However, little is known of the regulation of cytokinin movement to the shoot or of the distribution and metabolism of cytokinin in shoot organs.
Barrie Entsch   +4 more
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The aromatic cytokinins

Physiologia Plantarum, 1997
After the discovery of kinetin (Miller et al. 1956, J. Am. Chem. Soc. 78: 1345–1350) there was a flurry of syntheses that led to the finding of 6‐benzylaminopurine (BA), an active and easily obtainable cytokinin. Much research into cytokinin physiology was subsequently done with this substance.
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Cytokinin and the cell cycle

Current Opinion in Plant Biology, 2014
The phytohormone cytokinin influences many aspects of plant growth and development, including a prominent role in the regulation of cell proliferation. How the cytokinin response pathway integrates into the machinery regulating progression through the cell cycle is only beginning to be appreciated.
Joseph J. Kieber   +2 more
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Cytokinins and shoot development

Trends in Plant Science, 2003
Cytokinins promote the unfolding of a complex gene expression program in tissue culture that results in the formation of shoots. Much has been learned about cytokinin signaling in the past few years; the challenge now is to understand how known steps in cytokinin signaling interface with the process of shoot development in culture and in planta ...
Stephen H. Howell, Sonia Lall, Ping Che
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Metabolism and long-distance translocation of cytokinins.

Journal of Integrative Plant Biology, 2010
During plant development, distantly-located organs must communicate in order to adapt morphological and physiological features in response to environmental inputs. Among the recognized signaling molecules, a class of phytohormones known as the cytokinins
Toru Kudo, Takatoshi Kiba, H. Sakakibara
semanticscholar   +1 more source

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