With their latest discovery, published in the journal The Plant Cell, research teams at the RIKEN Plant Science Center have marked a major step toward clarifying these origins.
The research teams studied mutants of the Arabidopsi leaf trichome, a specialized epidermal cell that forms a small hair-like outgrowth on plants. Unlike earlier studies, the teams focused on later stages in the trichome developmental process, which are accompanied by rapid cell growth and branching.
In their experiments, the researchers discovered that by disrupting the gene encoding a novel protein, GTL1, trichome cells could be induced to grow to twice their normal size, indicating that GTL1 represses cell growth. By measuring the amount of nuclear DNA in young trichomes, they further determined that GTL1, unlike previously-identified growth regulators, functions to suppress DNA reduplication and cell growth entirely at the very last stage of development.
GTL1 is the first transcription factor to have been found to actively down-regulate the growth of plant cells. Its discovery constitutes a key step toward understanding the mechanisms of plant cell growth, offering new directions for research and promising further advances in agricultural production.
For more information, please contact:Dr. Keiko Sugimoto
Saeko Okada | Research asia research news
Antimicrobial substances identified in Komodo dragon blood
23.02.2017 | American Chemical Society
New Mechanisms of Gene Inactivation may prevent Aging and Cancer
23.02.2017 | Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut e.V. (FLI)
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
23.02.2017 | Physics and Astronomy
23.02.2017 | Earth Sciences
23.02.2017 | Life Sciences