Plant Cell, Tissue and Organ Culture (PCTOC), 2019
Plants being exposed to a variety of pathogenic infections, acquire the natural mechanism of comb... more Plants being exposed to a variety of pathogenic infections, acquire the natural mechanism of combating the pathogens leading to an increased level of defense. Several pathogenesis-related (PR) proteins are expressed by plants; approximately 17 families have been discovered till now. Most of them confer resistance to fungal pathogens and some of the PR proteins are bactericidal. These PR proteins consist of a short sequence of amino acids thus called antimicrobial peptides (AMPs). These AMPs permeabilize the pathogenic membrane via pore formation leading to cell death. The specific characteristic of these peptides is conserved domain and the disulfide bond pattern. Several types of AMPs such as defensins, thionins, cyclotides, lipid transfer proteins (LTPs) and several others, with a diverse mode of action, have been characterized from different plant species. These AMPs have been playing an important role in the host plant's defense against the pathogens. In this review we summarized types of AMPs, their structural conformation and mode of action, their expression and co-expression in transgenic plants for conferring elevated resistance against the phytopathogens.
Plant Cell, Tissue and Organ Culture (PCTOC), 2019
Plants being exposed to a variety of pathogenic infections, acquire the natural mechanism of comb... more Plants being exposed to a variety of pathogenic infections, acquire the natural mechanism of combating the pathogens leading to an increased level of defense. Several pathogenesis-related (PR) proteins are expressed by plants; approximately 17 families have been discovered till now. Most of them confer resistance to fungal pathogens and some of the PR proteins are bactericidal. These PR proteins consist of a short sequence of amino acids thus called antimicrobial peptides (AMPs). These AMPs permeabilize the pathogenic membrane via pore formation leading to cell death. The specific characteristic of these peptides is conserved domain and the disulfide bond pattern. Several types of AMPs such as defensins, thionins, cyclotides, lipid transfer proteins (LTPs) and several others, with a diverse mode of action, have been characterized from different plant species. These AMPs have been playing an important role in the host plant's defense against the pathogens. In this review we summarized types of AMPs, their structural conformation and mode of action, their expression and co-expression in transgenic plants for conferring elevated resistance against the phytopathogens.
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