Institutional Publications

Permanent URI for this collectionhttps://ndkr-library.nipgr.ac.in/handle/123456789/11

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Author: search.filters.author.Prasad, ManojSubject: search.filters.subject.Plant immunity

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    Dynamics of epigenetic control in plants via SET domain containing proteins: Structural and functional insights
    (Elsevier B.V., 2023) Seni, Sushmita; Singh, Roshan Kumar; Prasad, Manoj
    Plants control expression of their genes in a way that involves manipulating the chromatin structural dynamics in order to adapt to environmental changes and carry out developmental processes. Histone modifications like histone methylation are significant epigenetic marks which profoundly and globally modify chromatin, potentially affecting the expression of several genes. Methylation of histones is catalyzed by histone lysine methyltransferases (HKMTs), that features an evolutionary conserved domain known as SET [Su(var)3-9, E(Z), Trithorax]. This methylation is directed at particular lysine (K) residues on H3 or H4 histone. Plant SET domain group (SDG) proteins are categorized into different classes that have been conserved through evolution, and each class have specificity that influences how the chromatin structure operates. The domains discovered in plant SET domain proteins have typically been linked to protein-protein interactions, suggesting that majority of the SDGs function in complexes. Additionally, SDG-mediated histone mark deposition also affects alternative splicing events. In present review, we discussed the diversity of SDGs in plants including their structural properties. Additionally, we have provided comprehensive summary of the functions of the SDG-domain containing proteins in plant developmental processes and response to environmental stimuli have also been highlighted.
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    Recent perspective of non-coding RNAs at the nexus of plant-pathogen interaction
    (Elsevier B.V., 2023) Sharma, Shambhavi; Sett, Susmita; Das, Tuhin; Prasad, Ashish; Prasad, Manoj
    In natural habitats, plants are exploited by pathogens in biotrophic or necrotrophic ways. Concurrently, plants have evolved their defense systems for rapid perception of pathogenic effectors and begin concerted cellular reprogramming pathways to confine the pathogens at the entry sites. During the reorganization of cellular signaling mechanisms following pathogen attack, non-coding RNAs serves an indispensable role either as a source of resistance or susceptibility. Besides the well-studied functions of non-coding RNAs related to plant development and abiotic stress responses, previous and recent discoveries have established that non-coding RNAs like miRNAs, siRNAs, lncRNAs and phasi-RNAs can fine tune plant defense responses by targeting various signaling pathways. In this review, recapitulation of previous reports associated with non-coding RNAs as a defense responder against virus, bacteria and fungus attacks and insightful discussion will lead us to conceive innovative ideas to fight against approaching threats of resistant breaking pathogens.
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    Role of RNA-interacting proteins in modulating plant-microbe interactions
    (Elsevier B.V., 2020) Pandey, Saurabh; Sharma, Namisha; Prasad, Manoj
    Successful infection of a pathogen in its host plant depends on the complex molecular interplay between host and the invading microbe. Plant-microbe interactions are primarily governed by signal interchange amid both the organisms. Effective passage of the pathogen into the plant system requires the circumvention of signal detection mechanisms and subsequent immune responses. As a mechanism to counteract defense response, pathogens deploy several RNA-interacting proteins (RIPs) or RNA molecules which interrupt the host transcriptional as well as signaling pathways, leading to successful infection and symptom development. The interference by pathogen-derived small RNAs (sRNA) in the gene silencing machinery of the host has been recently reported. In this context, the present review describes the pathogen- and host-specific RNA molecules and chaperones, their roles in modulating host immune response as well as pathogenesis, and the possible targets for manipulating the molecular mechanism to develop durable tolerance/resistance against diseases in crops.