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
First time-lapse footage of cell activity during limb regeneration
25.10.2016 | eLife
Phenotype at the push of a button
25.10.2016 | Institut für Pflanzenbiochemie
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
25.10.2016 | Earth Sciences
25.10.2016 | Power and Electrical Engineering
25.10.2016 | Process Engineering