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Plant Innate Immunity 4.0
This special issue belongs to the section “Molecular Plant Sciences“.
Special Issue Information
Dear colleagues,
Even if immunology has been purely regarded as a medical science, immunity represents a trait common to many living organisms. Classically, the mammalian immune system consists of innate and adaptive mechanisms that protect the host from pathogens; in particular, innate mechanisms function independently of previous exposure of the host to the infectious agent.
Animal and plant innate immunities share some similarities, and plants, as the animals, are capable of recognizing and distinguishing between self and non-self. Recognition by the innate immune system is based on germline-encoded receptors (also called pattern recognition receptors, PRRs) expressed on host cells which sense conserved structural components and metabolism products of fungi, bacteria and viruses (known as pathogen-associated molecular patterns, PAMPs) including lipids, polysaccharides, proteins and nucleic acids. During their evolutionary history, plants have developed various defence strategies in order to face pathogens. Although lacking immunoglobulin molecules, circulating cells and phagocytic processes, the effectors of the mammalian immunity, plants possess a rather complex and efficient innate immune system. Therefore, disease is a rare outcome in the spectrum of plant-microbe interactions because plants have (co)evolved a complex set of defence mechanisms to hinder pathogen challenging and, in most cases, prevent infection. The battery of defence reactions includes physical and chemical barriers, both preformed (or constitutive or passive) and inducible (or active), depending on whether they are pre-existing features of the plant or are switched on after challenging. When a pathogen is able to overcome these defences, disease ceases to be the exception.
We invite investigators to submit both original research and review articles that explore all the aspects of the plant innate immunity.
Potential topics include, but are not limited to:
- Host resistance
- Non-host resistance
- Systemic acquired resistance (SAR)
- Induced systemic resistance (ISR)
- Plant-microbe interaction
- Plant-insect interaction
- Plant-nematode interaction
- Elicitors
- Plant activators
- PAMPs/MAMPs/DAMPs (pathogen/microbe/damage-associated molecular patterns)
- PRRs (pattern recognition receptors)
- Hypersensitive response/Programmed cell death (PCD)
- Phytoanticipins
- Phytoalexins
- Ribosome inactivating proteins
- Pathogenesis-related (PR) proteins
- Fitness costs
Related Special Issues:
Plant Innate Immunity (10 articles)
Plant Innate Immunity 2.0 (21 articles)
Plant Innate Immunity 3.0 (14 articles)
Prof. Dr. Marcello Iriti
Guest Editor
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Keywords
- Crop protection
- Plant diseases
- Systemic acquired immunity
- Defence metabolism
- Secondary metabolites
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