Abstract
After the green revolution, the consumption of rice and wheat became popular, but grain production became an area of concern. Now, the importance of millet was understood, particularly in developing countries of Asia and Africa. The novel technology termed as ‘metabolomics’ played a major role in improving the quality of crop and enhancing its yield. Metabolomics is the dominant driver of phytochemical analysis in the present times. This tool has helped in finding the quality and quantity of root exudates which determines the phenotypic fate of the cells, tissue, and the plant in whole crop. Metabolomics differs from traditional approaches of phytochemical analysis fundamentally, such as it is based on rational analysis, supported by scientific data, assessing all metabolites that can be measured without any pre-selection. Rhizosphere comprises varied populations wherein the plant roots compete in order to survive. For securing optimum water, essential nutrients and space, plants undergo inter-species competitions, as well as with other microorganisms present in soil. This competition for survival takes place through biochemical interactions in between roots and microbes, and among roots of different plants. Certain root secretions called as ‘root exudates’ are considered to initiate such metabolite communication and command these interactions. These exudates or secondary metabolites play a key role in underground communications between plant roots and beneficial microbes. The ability of plants to communicate simultaneously with other plants and other microbes as well as their potential to alter metabolic processes under stress conditions is an unexplored area. It is of utmost importance to gain more experimental evidence and conduct studies to fully understand the process of underground communication under biotic and abiotic stress conditions as well as nutritional benefits of millets, to improve its quality and production, in order to promote sustainable agriculture and meet the ever-growing demand of food, especially in developing countries like India. Here, we have given an insight into the biochemical interaction between millet plants, studied using a holistic, data-driven approach, termed as metabolomics.
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Mazumdar, S. et al. (2023). Understanding of Belowground Biochemical Communication in Millets Through Metabolomics. In: Pudake, R.N., Kumari, M., Sapkal, D.R., Sharma, A.K. (eds) Millet Rhizosphere . Rhizosphere Biology. Springer, Singapore. https://doi.org/10.1007/978-981-99-2166-9_13
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