Related Experiment Video
Updated: Aug 7, 2026
10:07
Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
Recent advances in plant MAP kinase signalling
Biological Chemistry
|October 11, 2001
Summary
Mitogen-activated protein kinases (MAPK) are crucial for plant signal transmission, mediating responses to environmental stresses and hormones. This review updates recent advances in plant MAPK signaling pathways and their mechanisms.
Area of Science:
- Plant molecular biology
- Cellular signaling pathways
Background:
- Mitogen-activated protein kinases (MAPK) are key signal transducers, linking external stimuli to cellular responses.
- MAPK cascades are involved in plant responses to biotic and abiotic stresses (e.g., pathogen infection, drought) and hormone signaling (e.g., ethylene, auxin).
- MAPKs also play roles in plant cell cycle regulation and development.
Purpose of the Study:
- To provide an update on recent advancements in plant MAPK signaling.
- To discuss the emerging mechanisms of specific plant MAPK pathways.
Main Methods:
- Literature review of recent research on plant MAPK signaling.
- Analysis of identified components of plant MAPK cascades through Arabidopsis mutant screens and in vivo assays.
Main Results:
- Recent advances have expanded our understanding of plant MAPK signaling networks.
- Emerging mechanisms of selected MAPK pathways have been elucidated.
Conclusions:
- MAPK signaling is a complex and vital process in plants, regulating diverse cellular functions.
- Further research into specific MAPK pathways will continue to reveal intricate regulatory mechanisms.
More Related Videos
08:54Imaging Spatial Reorganization of a MAPK Signaling Pathway Using the Tobacco Transient Expression System
Published on: March 20, 2016
09:32Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
Published on: June 15, 2017
Related Concept Videos
03:03mTOR Signaling and Cancer Progression
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
01:19Interactions Between Signaling Pathways
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
01:22Amplifying Signals via Enzymatic Cascade
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze the...
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...
01:07MAPK Signaling Cascades
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
01:22PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...