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Abiotic stress signalling in plants and transgenic technology as a triumph: A review

Seetha Babu Manepalli, Shraddha Tomar, Dinkar J Gaikwad, Sagar Maitra.

Cited by 3 Articles

The plants are exposed seasonally and continuously to various environmental and biodiversity stress that inhibit and affect their life processes from seedling to harvest stage. Several irregularities are seen in light intensity, temperature, mineral and water availability etc. These changes keep on challenges the plant to grow and reproduce itself and produce several environmental signals. To receive these signals, the plants themselves develop a signaling network with several receptors such as phytohormones, GPCR (G-protein-coupled receptors), kinases, hormone receptors etc. Signal transduction produces a cellular response in plants which initiates the physiological and developmental responses. This article reveals a keen and in-depth analysis of several mechanisms and perceptions of signal transduction during exposure to several kinds of abiotic stresses in plants, along with a generic pathway of signaling in plants. Plant Abiotic stress often plays a pivotal role in causing losses through salinity, heat, cold, drought etc. To understand and overcome these problems through conventional breeding, which was mainly dependent on genetic variations, several studies are going on model plants like Arabidopsis, Rice and Brachypodium; the accessibility of sources for these genomes are in the processing stage in wheat. On the other hand, the advancements in genome editing opened the doors for scientists to incorporate the desired trait in a particular plant species. The emerging developments in second-generation genome editing technologies like CRISPR/cas9 paved the path for plant biologists to develop a trait more efficiently and rapidly, unlike conventional breeding methods. This review plots the importance of signaling during abiotic stress and transgene technology to prevail over abiotic stress in plants by ingesting desired traits in a plant.

Key words: Abiotic Stress, Biotic Stress, Cell Signaling, Plant Growth Regulators, Transgenic Plants

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