PRR Cross-Talk Jump Starts Plant Immunity
1Department of Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nakamachi, Nara 631-8505, Japan; Agricultural Technology and Innovation Research Institute, Kindai University, Nakamachi, Nara 631-8505, Japan.
Cell Host & Microbe
|January 18, 2020
Summary
Plants establish immune memory after pathogen infection, enhancing future responses. This priming occurs via cell-surface co-receptor communication when detecting microbe-associated molecular patterns (MAMPs).
Area of Science:
- Plant immunity
- Molecular plant pathology
- Immunology
Background:
- Plants possess immunological memory to enhance defense against recurring pathogen attacks.
- This memory primes the plant for a faster and stronger immune response upon subsequent infections.
Purpose of the Study:
- To elucidate the molecular mechanisms underlying immune priming in plants.
- To identify the key players involved in establishing plant immune memory.
Main Methods:
- Investigated the role of cell-surface co-receptors in plant immune responses.
- Analyzed molecular crosstalk between co-receptors following MAMP perception.
Main Results:
- Discovered that immune priming is established through specific crosstalk between cell-surface co-receptors.
- Demonstrated that this co-receptor communication is triggered upon perception of microbe-associated molecular patterns (MAMPs).
Conclusions:
- Plant immune memory relies on signal transduction pathways initiated by co-receptor interactions.
- MAMP perception by co-receptors is crucial for establishing a primed state of enhanced plant immunity.
Related Concept Videos
01:25Cell Signaling in Plants
6.1K
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...
6.1K
02:26Defenses Against Pathogens and Herbivores
29.4K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
29.4K
02:43Plant Cell Wall
59.8K
The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.
59.8K
01:56Plant Hormones
27.0K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
27.0K
02:00Photoreceptors and Plant Responses to Light
28.2K
Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.2K
00:42Cross-reactivity
32.7K
Overview
32.7K