Related Experiment Video
Updated: Aug 12, 2026
09:45
New Variations for Strategy Set-shifting in the Rat
Published on: January 23, 2017
Shuffling the deck: plant signalling plays a club
1Dept of Botany/Developmental Cell and Molecular Biology, Duke University, Durham, NC 27708, USA. Kohorn@duke.edu
Trends in Cell Biology
|September 11, 1999
Summary
Cell signaling is crucial for communication. Recent studies on Arabidopsis meristem development reveal unique paradigms in plant cell signaling, challenging existing models of protein kinase action.
Area of Science:
- Plant biology
- Cellular signaling
- Molecular biology
Background:
- Cell communication relies on signal transmission across plasma membranes.
- Protein kinases and activators are key regulators of cellular signaling pathways.
- Established signaling paradigms may not fully encompass plant cell mechanisms.
Purpose of the Study:
- To investigate the unique signaling paradigms in plant cells.
- To understand the role of protein kinases in Arabidopsis meristem development.
- To reconcile plant signaling mechanisms with existing models.
Main Methods:
- Analysis of recent reports on Arabidopsis meristem development.
- Comparative study of plant signaling pathways versus established paradigms.
- Focus on protein kinase and activator functions.
Main Results:
- Plant cell signaling exhibits distinct characteristics.
- Arabidopsis meristem development highlights novel signaling mechanisms.
- Existing signaling paradigms require re-evaluation for plant systems.
Conclusions:
- Plant signaling pathways present unique regulatory mechanisms.
- Further research is needed to fully elucidate plant-specific signaling paradigms.
- The development of the Arabidopsis meristem serves as a model for understanding these unique pathways.
More Related Videos
11:58Optimizing the Use of a Liquid Handling Robot to Conduct a High Throughput Forward Chemical Genetics Screen of Arabidopsis thaliana
Published on: April 30, 2018
06:46Automated, Long-term Behavioral Assay for Cognitive Functions in Multiple Genetic Models of Alzheimer's Disease, Using IntelliCage
Published on: August 4, 2018
Related Concept Videos
01:41Signal Sequences and Sorting Receptors
Signal sequences are short amino acid sequences that guide newly synthesized proteins to their proper location within the cell. Classical signal sequences are fifteen to sixty amino acids long and present at the N-terminus of a polypeptide chain. Each signal sequence has a conserved segment of basic residues towards their N terminus, a hydrophobic core, and a C-terminus rich in polar residues. The C-terminus also contains a signal cleavage site and features a -3 -1 sequence motif. The -3-1...
01:30Assembly of Signaling Complexes
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
01:25Cell Signaling in Plants
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
02:33Hedgehog Signaling Pathway
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
01:18Clipper Circuit
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
01:14Clamper Circuit
A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...