Publications of NIPGR Scientists

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Author: search.filters.author.Vadassery, JyothilakshmiHas files: No

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    Plant protease inhibitors: Biological roles and applications in plant stress tolerance
    (Elsevier B.V., 2024) Pawar, Mahendra; Dixit, Sameer; Vadassery, Jyothilakshmi
    Plants have evolved a plethora of defense mechanisms to protect themselves against various biotic and abiotic stresses. Plants are in a constant evolutionary arms race with their attacking insect herbivores and pathogens over a long period of time. Plants when attacked by insects or pathogens use different defense mechanism that involves calcium-signaling, production of reactive oxygen species, phytohormones, miRNAs, secondary metabolites, and defense proteins. The production of protease inhibitors is one such mechanism that contributes to plant defense by severely reducing the growth and development of phytopathogens. Proteases are proteolytic proteins that are necessary for plants to carry out important functions, and the proteolytic activity of proteases needs to be regulated in a controlled manner. Plant protease inhibitors are a family of small protein/peptide/amino acid derivatives that are involved in important biological processes of plants including growth, development, and defense against pests and pathogens (Polya, 2003; Van Der Hoorn, 2008).
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    Cas variants increased the dimension of the CRISPR tool kit
    (John Wiley & Sons, 2024) Dixit, Sameer; Shukla, Akanchha; Pawar, Mahendra; Vadassery, Jyothilakshmi
    CRISPR technology shows promising developments in multiple areas of biological sciences. It is a developing technology and continuously evolving day by day. Cas proteins, an integral component of CRISPR technology, has enormous scope for new discoveries and reengineering. It can enhance new dimensions in CRISPR tool kit. In this chapter, we systematically explain the classification of CRISPR-Cas system. We separately compiled applicability of different CRISPR-Cas system. In the end, we discussed about the advancement and reengineering of available CRISPR-Cas systems.
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    Regulatory role of phytohormones in the interaction of plants with insect herbivores
    (Elsevier B.V., 2023) Kundu, Pritha; Bera, Paramita; Mishra, Shruti; Vadassery, Jyothilakshmi
    Insect herbivores affect crop growth worldwide, causing significant yield losses annually. Phytohormones are prime signaling molecules that coordinate many physiological phenomena, besides triggering stress-responsive regulatory genes involved in plant defense. Here, we present a holistic picture of the central role of various phytohormones—jasmonic acid, salicylic acid, ethylene, abscisic acid, auxin, cytokinin, gibberellins, and brassinosteroids in regulating the diverse molecular interactions between plants and insect herbivores. With an initial overview of the early signaling response, the chapter majorly focuses on the role of different key phytohormones in defending plants against herbivory and their cross talk. We also describe the phytohormone-mediated production of secondary metabolites and other defense toxins to counteract harmful herbivores. With the well-established myriad of information in selected plant–herbivore model systems, it is now critical to translate this knowledge to less explored crop plants for sustainable development in agriculture.