Institutional Publications
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Item Role of plant neurotransmitters in salt stress: A critical review(Elsevier B.V., 2024) Malakar, Paheli; Gupta, Santosh K.; Chattopadhyay, DebasisNeurotransmitters are naturally found in many plants, but the molecular processes that govern their actions still need to be better understood. Acetylcholine, γ-Aminobutyric acid, histamine, melatonin, serotonin, and glutamate are the most common neurotransmitters in animals, and they all play a part in the development and information processing. It is worth noting that all these chemicals have been found in plants. Although much emphasis has been placed on understanding how neurotransmitters regulate mood and behaviour in humans, little is known about how they regulate plant growth and development. In this article, the information was reviewed and updated considering current thinking on neurotransmitter signaling in plants' metabolism, growth, development, salt tolerance, and the associated avenues for underlying research. The goal of this study is to advance neurotransmitter signaling research in plant biology, especially in the area of salt stress physiology.Item Adaptation of plants to salt stress: the role of the ion transporters(Springer Nature Publishing AG, 2021) Malakar, Paheli; Chattopadhyay, DebasisAdaptation to high salinity is achieved by cellular ion homeostasis which involves regulation of toxic sodium ion (Na+) and Chloride ion (Cl−) uptake, preventing the transport of these ions to the aerial parts of the plants and vacuolar sequestration of these toxic ions. Ion transporters have long been known to play roles in maintaining ion homeostasis. Na+ enters the cell through various voltage dependent selective and non-selective ion channels. High Na+ concentration in the plasma membrane is balanced either by uptake of potassium ion (K+) by various potassium importing channels, by salt exclusion mechanism or by sequestration of Na+ in the vacuoles. Therefore, the role of high-affinity potassium transporter, the salt overly sensitive pathway, the most well-defined Na+ exclusion pathway that exports Na+ from cell into xylem and tonoplast localized cation transporters that compartmentalizes Na+ in vacuoles need to be studied in detail and applied to make the plant adaptable to saline soil. Knowledge on the regulation of expression of these transporters by the hormones, microRNAs and other non-coding RNAs can be utilized to manipulate the ion transport. Here, we reviewed paradigm of the ion transporters in salt stress signalling pathways from the recent and past studies aiding transformation of basic knowledge into biotechnological applications to generate engineered salt stress tolerant crops.