Feruloyl-CoA 6′-Hydroxylase1-dependent coumarins mediate iron acquisition from alkaline substrates in Arabidopsis

NB Schmid, RFH Giehl, S Döll, HP Mock… - Plant …, 2014 - academic.oup.com
Although iron (Fe) is one of the most abundant elements in the earth's crust, its low solubility
in soils restricts Fe uptake by plants. Most plant species acquire Fe by acidifying the …

Accumulation and Secretion of Coumarinolignans and other Coumarins in Arabidopsis thaliana Roots in Response to Iron Deficiency at High pH

P Sisó-Terraza, A Luis-Villarroya, P Fourcroy… - Frontiers in Plant …, 2016 - frontiersin.org
Root secretion of coumarin-phenolic type compounds has been recently shown to be related
to Arabidopsis thaliana tolerance to Fe deficiency at high pH. Previous studies revealed the …

Metabolome Analysis of Arabidopsis thaliana Roots Identifies a Key Metabolic Pathway for Iron Acquisition

H Schmidt, C Günther, M Weber, C Spörlein… - PloS one, 2014 - journals.plos.org
Fe deficiency compromises both human health and plant productivity. Thus, it is important to
understand plant Fe acquisition strategies for the development of crop plants which are …

The essential role of coumarin secretion for Fe acquisition from alkaline soil

S Clemens, M Weber - Plant Signaling & Behavior, 2016 - Taylor & Francis
Plant productivity is limited by the scarcity of the essential micronutrient iron particularly in
alkaline soils. The root secretion of phenolics has long been recognized as a component of …

Mobilization of iron by plant-borne coumarins

HH Tsai, W Schmidt - Trends in Plant Science, 2017 - cell.com
Iron is one of the most abundant elements in soils, but its low phytoavailability at high pH
restricts plant communities on alkaline soils to taxa that have evolved efficient strategies to …

Scopoletin 8-hydroxylase-mediated fraxetin production is crucial for iron mobilization

HH Tsai, J Rodríguez-Celma, P Lan, YC Wu… - Plant …, 2018 - academic.oup.com
Iron (Fe) is an essential mineral nutrient and an important factor for the composition of
natural plant communities. Low Fe availability in aerated soils with neutral or alkaline pH …

Mutually Exclusive Alterations in Secondary Metabolism Are Critical for the Uptake of Insoluble Iron Compounds by Arabidopsis and Medicago truncatula

J Rodríguez-Celma, WD Lin, GM Fu, J Abadía… - Plant …, 2013 - academic.oup.com
The generally low bioavailability of iron in aerobic soil systems forced plants to evolve
sophisticated genetic strategies to improve the acquisition of iron from sparingly soluble and …

Expression profiling of the Arabidopsis ferric chelate reductase (FRO) gene family reveals differential regulation by iron and copper

I Mukherjee, NH Campbell, JS Ash, EL Connolly - Planta, 2006 - Springer
The Arabidopsis FRO2 gene encodes the iron deficiency-inducible ferric chelate reductase
responsible for reduction of iron at the root surface; subsequent transport of iron across the …

Involvement of the ABCG37 transporter in secretion of scopoletin and derivatives by Arabidopsis roots in response to iron deficiency

P Fourcroy, P Sisó‐Terraza, D Sudre… - New …, 2014 - Wiley Online Library
Summary Studies of Iron (Fe) uptake mechanisms by plant roots have focussed on Fe (III)‐
siderophores or Fe (II) transport systems. Iron deficency also enhances root secretion of …

Scopoletin 8-hydroxylase: a novel enzyme involved in coumarin biosynthesis and iron-deficiency responses in Arabidopsis

J Siwinska, K Siatkowska, A Olry… - Journal of …, 2018 - academic.oup.com
Iron deficiency is a serious agricultural problem, particularly in alkaline soils. Secretion of
coumarins by Arabidopsis thaliana roots is induced under iron deficiency. An essential …