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Host resistance is defined as the ability of the host to hinder or arrest the growth and/or development of the pathogen. Complete resistance prevents the multiplication of the pathogen; the spore production is zero.
Host resistance, the ability of a plant to prevent or retard disease development, represents an exciting area for disease control because it is usually residue-free and non-toxic to the environment. Moreover, if multiple biochemical components are responsible for host resistance, control is likely to be durable.
Host defenses that protect against infection include Natural barriers (eg, skin, mucous membranes) Nonspecific (innate) immune responses (eg, phagocytic cells [neutrophils, macrophages] and their products)
Host resistance to intracellular pathogens, such as viruses and certain bacteria, relies to a large extent on targeting infected cells for programmed cell death by type 1 immunity-driven...
Host Plant Resistance (HPR) Definition. “Those characters that enable a plant to avoid, tolerate or recover from attacks of insects under conditions that would cause greater injury to other plants of the same species” (Painter, R.H., 1951).
Host resistance is broadly defined as the host's ability to limit pathogen burden and includes such diverse defences as physical barriers (e.g. skin), behavioural modifications or a rapid immune response.
These data support the hypothesis that genetic predisposition, microenvironment, and aging impair host resistance to infection and response to vaccination by influencing the effect of innate immunity on the development of adaptive immune responses.
What are the determinants of host susceptibility or resistance? Clearly, they are multifactorial. Within susceptible species, resistance varies not only with the genetic constitution of the host, but also with age, nutritional status, stress, and many other factors.
Host resistance and nonhost resistance are most commonly differentiated based on pathogen adaptation to a particular species (host) and lack of adaptation to other species (nonhost).
Host resistance assays are considered the gold standard in immunotoxicity testing and provide a critical overview of the extent to which innate, adaptive, and homeostatic regulatory immune functions are integrated to protect the host.