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Comparative transcriptome and metabolme analysis reveals the molecular insights of multiple stress tolerance in Citrus aurantifolia overexpressing a novel trypsin inhibitor from Putranjiva roxburghii

ABSTRACT: Being a sessile organism, plants are constantly confronted by various biotic (pest and pathogen) and abiotic (drought, salinity, flood, extreme temperatures, etc.) stresses. In response to these environmental stresses, plants have developed numerous defense mechanisms. One of the basal defense responses in plants are mediated by trypsin inhibitors (TIs). Putranjiva roxburghii trypsin inhibitor (PRTI), a potent trypsin inhibitor from P. roxburghii showing sequence similarity with a group of genes known to have defense and storage function such as wound inducible (WIN) proteins, vegetative storage proteins (VSPs), and Bark storage protein (BSPs) was overexpressed in Citrus aurantifolia. PRTI overexpressing lines were tolerant to various abiotic stresses (salinity, drought, and alkalinity) and two pests namely, Scirtothrips citri and Papilio demoleus. The molecular insights underlying the heterologous overexpression of PRTI at the transcriptomic level reveals the upregulation of stress responsive genes and involvement of hormonal signal transduction and transporters. Further, genes related to DNA repair, amino acid synthesis, and development were also found to be upregulated. Our study also reveals the nuclear-cytoplasmic localization and alteration phytohormone profile by PRTI overexpression in transgenic lines as compared to wild-type which clearly indicates the role of abscisic acid ABA in stress tolerance.

ORGANISM(S): Citrus x aurantiifolia

PROVIDER: GSE208104 | GEO | 2022/12/31

REPOSITORIES: GEO

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Project description:Pathak2013 - MAPK activation in response to various abiotic stresses MAPK activation mechanism in response to various abiotic stress conditions, such as cold, salt, drought, H2O2, heavy metal and ethylene, in plants This model is described in the article: Modeling of the MAPK machinery activation in response to various abiotic and biotic stresses in plants by a system biology approach. Pathak RK, Taj G, Pandey D, Arora S, Kumar A. Bioinformation 2013; 9(9): 443-449 Abstract: Mitogen-Activated Protein Kinases (MAPKs) cascade plays an important role in regulating plant growth and development, generating cellular responses to the extracellular stimuli. MAPKs cascade mainly consist of three sub-families i.e. mitogen-activated protein kinase kinase kinase (MAPKKK), mitogen-activated protein kinase kinase (MAPKK) and mitogen activated protein kinase (MAPK), several cascades of which are activated by various abiotic and biotic stresses. In this work we have modeled the holistic molecular mechanisms essential to MAPKs activation in response to several abiotic and biotic stresses through a system biology approach and performed its simulation studies. As extent of abiotic and biotic stresses goes on increasing, the process of cell division, cell growth and cell differentiation slow down in time dependent manner. The models developed depict the combinatorial and multicomponent signaling triggered in response to several abiotic and biotic factors. These models can be used to predict behavior of cells in event of various stresses depending on their time and exposure through activation of complex signaling cascades. This model is hosted on BioModels Database and identified by: BIOMD0000000491 . To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource for published quantitative kinetic models . To the extent possible under law, all copyright and related or neighbouring rights to this encoded model have been dedicated to the public domain worldwide. Please refer to CC0 Public Domain Dedication for more information.

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Comparative transcriptome and metabolme analysis reveals the molecular insights of multiple stress tolerance in Citrus aurantifolia overexpressing a novel trypsin inhibitor from Putranjiva roxburghii

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