title: Model of how plants sense zinc deficiency.
abstract: Plants are capable of inducing a range of physico-chemical and microbial modifications of the rhizosphere which can mobilize mineral nutrients or prevent toxic elements from entering the roots. Understanding how plants sense and adapt to variations in nutrient availability is essential in order to develop plant-based solutions addressing nutrient-use-efficiency and adaptation to nutrient-limited or -toxic soils. Recently two transcription factors of the bZIP family (basic-region leucine zipper) have been identified in Arabidopsis and shown to be pivotal in the adaptation response to zinc deficiency. They represent not only the first regulators of zinc homeostasis identified in plants, but also a very promising starting-point that can provide new insights into the molecular basis of how plants sense and adapt to the stress of zinc deficiency. Considering the available information thus far we propose in this review a putative model of how plants sense zinc deficiency.
authors.affiliation: CIBIO, Research Center in Biodiversity and Genetic Resources, University of Porto, 4485-661 Vairão, Portugal. agla@cibio.up.pt
authors.forename: Ana G L
authors.initials: AG
authors.lastname: Assunção
authors.forename: Daniel P
authors.initials: DP
authors.lastname: Persson
authors.forename: Søren
authors.initials: S
authors.lastname: Husted
authors.forename: Jan K
authors.initials: JK
authors.lastname: Schjørring
authors.forename: Ross D
authors.initials: RD
authors.lastname: Alexander
authors.forename: Mark G M
authors.initials: MG
authors.lastname: Aarts
mesh_terms: D000222:Adaptation, Physiological / Q000235:genetics; D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D050976:Basic-Leucine Zipper Transcription Factors / Q000235:genetics / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant; D008957:Models, Genetic; D018517:Plant Roots / Q000235:genetics / Q000378:metabolism; D058441:Rhizosphere; D015032:Zinc / Q000378:metabolism*
chemical_list: D029681:Arabidopsis Proteins; D050976:Basic-Leucine Zipper Transcription Factors; C587246:bZIP19 protein, Arabidopsis; C587247:bZIP23 protein, Arabidopsis; C541011:bZIP24 protein, Arabidopsis; D015032:Zinc