title: A new insight into root responses to external cues: Paradigm shift in nutrient sensing.
abstract: Higher plants are sessile and their growth relies on nutrients present in the soil. The acquisition of nutrients is challenging for plants. Phosphate and nitrate sensing and signaling cascades play significant role during adverse conditions of nutrient unavailability. Therefore, it is important to dissect the mechanism by which plant roots acquire nutrients from the soil. Root system architecture (RSA) exhibits extensive developmental flexibility and changes during nutrient stress conditions. Growth of root system in response to external concentration of nutrients is a joint operation of sensor or receptor proteins along with several other cytoplasmic accessory proteins. After nutrient sensing, sensor proteins start the cellular relay involving transcription factors, kinases, ubiquitin ligases and miRNA. The complexity of nutrient sensing is still nebulous and many new players need to be better studied. This review presents a survey of recent paradigm shift in the advancements in nutrient sensing in relation to plant roots.
authors.affiliation: a International Center for Genetic Engineering & Biotechnology ; Aruna Asaf Ali Marg; New Delhi , India.
authors.forename: Deepak
authors.initials: D
authors.lastname: Bhardwaj
authors.affiliation: b Laboratoire de Biochimie et Physiologie Moléculaire des Plantes; UMR CNRS/INRA/SupAgro/UM; Institut de Biologie Intégrative des Plantes "Claude Grignon" ; Montpellier cedex , France.
authors.forename: Anna
authors.initials: A
authors.lastname: Medici
authors.affiliation: b Laboratoire de Biochimie et Physiologie Moléculaire des Plantes; UMR CNRS/INRA/SupAgro/UM; Institut de Biologie Intégrative des Plantes "Claude Grignon" ; Montpellier cedex , France.
authors.forename: Alain
authors.initials: A
authors.lastname: Gojon
authors.affiliation: b Laboratoire de Biochimie et Physiologie Moléculaire des Plantes; UMR CNRS/INRA/SupAgro/UM; Institut de Biologie Intégrative des Plantes "Claude Grignon" ; Montpellier cedex , France.
authors.forename: Benoît
authors.initials: B
authors.lastname: Lacombe
authors.affiliation: a International Center for Genetic Engineering & Biotechnology ; Aruna Asaf Ali Marg; New Delhi , India.
authors.forename: Narendra
authors.initials: N
authors.lastname: Tuteja
mesh_terms: D017343:Genes, Plant; D009566:Nitrates / Q000378:metabolism*; D010710:Phosphates / Q000172:deficiency / Q000378:metabolism*; D010937:Plant Growth Regulators / Q000378:metabolism; D018517:Plant Roots / Q000235:genetics / Q000378:metabolism*; D015398:Signal Transduction / Q000235:genetics
chemical_list: D009566:Nitrates; D010710:Phosphates; D010937:Plant Growth Regulators
keywords: Pi and N sensing; nitrate; nutrient sensing; phosphate; root system architecture