Institutional Publications

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Author: search.filters.author.Singh, ManjulSubject: search.filters.subject.auxin

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    Ethylene acts as a negative regulator of glucose induced lateral root emergence in Arabidopsis
    (Taylor & Francis Group, 2015) Singh, Manjul; Gupta, Aditi; Laxmi, Ashverya
    Plants, being sessile organisms, are more exposed to the hazards of constantly changing environmental conditions globally. During the lifetime of a plant, the root system encounters various challenges such as obstacles, pathogens, high salinity, water logging, nutrient scarcity etc. The developmental plasticity of the root system provides brilliant adaptability to plants to counter the changes exerted by both external as well as internal cues and achieve an optimized growth status. Phytohormones are one of the major intrinsic factors regulating all aspects of plant growth and development both independently as well as through complex signal integrations at multiple levels. We have previously shown that glucose (Glc) and brassinosteroid (BR) signalings interact extensively to regulate lateral root (LR) development in Arabidopsis. (1) Auxin efflux as well as influx and downstream signaling components are also involved in Glc-BR regulation of LR emergence. Here, we provide evidence for involvement of ethylene signaling machinery downstream to Glc and BR in regulation of LR emergence.
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    Role of glucose in spatial distribution of auxin regulated genes
    (Landes Bioscience, 2009) Gupta, Aditi; Singh, Manjul; Mishra, Bhuwaneshwar S.; Kushwah, Sunita; Laxmi, Ashverya
    Plants have the ability to adjust its physiology and metabolism to the changes of nutrient availability in the environment. Since a number of common responses are regulated by sugar and auxin, the obvious question arises is whether sugar and auxin act interdependently to bring about changes in plant morphology. In the February issue of the PLoS ONE,1 we presented detailed investigation of glucose and auxin signaling interaction in controlling root growth and development in Arabidopsis thaliana seedlings. Further analysis of tissue specific regulation of glucose auxin signaling interaction may provide some insight as to how these two signaling molecules interact to control the morphogenic changes during seedling development.