[HTML][HTML] The Arabidopsis AtOPT3 protein functions in metal homeostasis and movement of iron to developing seeds

MG Stacey, A Patel, WE McClain, M Mathieu… - Plant …, 2008 - ncbi.nlm.nih.gov
Abstract The Arabidopsis thaliana AtOPT3 belongs to the oligopeptide transporter (OPT)
family, a relatively poorly characterized family of peptide/modified peptide transporters found …

Expression analyses of Arabidopsis oligopeptide transporters during seed germination, vegetative growth and reproduction

MG Stacey, H Osawa, A Patel, W Gassmann, G Stacey - Planta, 2006 - Springer
AtOPT promoter-GUS fusions were constructed for six of the nine known, putative
oligopeptide transporters (OPTs) in Arabidopsis thaliana and used to examine AtOPT …

AtOPT3, a member of the oligopeptide transporter family, is essential for embryo development in Arabidopsis

MG Stacey, S Koh, J Becker, G Stacey - The Plant Cell, 2002 - academic.oup.com
Abstract A T-DNA–tagged population of Arabidopsis was screened for mutations in AtOPT3,
which encodes a member of the oligopeptide (OPT) family of peptide transporters, and a …

OPT3 Is a Phloem-Specific Iron Transporter That Is Essential for Systemic Iron Signaling and Redistribution of Iron and Cadmium in Arabidopsis

Z Zhai, SR Gayomba, H Jung, NK Vimalakumari… - The Plant …, 2014 - academic.oup.com
Iron is essential for both plant growth and human health and nutrition. Knowledge of the
signaling mechanisms that communicate iron demand from shoots to roots to regulate iron …

Loss of OPT3 function decreases phloem copper levels and impairs crosstalk between copper and iron homeostasis and shoot-to-root signaling in Arabidopsis …

JC Chia, J Yan, M Rahmati Ishka, MM Faulkner… - The Plant …, 2023 - academic.oup.com
Abstract Copper (Cu) and iron (Fe) are essential micronutrients that are toxic when
accumulating in excess in cells. Thus, their uptake by roots is tightly regulated. While plants …

Changes in iron availability in Arabidopsis are rapidly sensed in the leaf vasculature and impaired sensing leads to opposite transcriptional programs in leaves and …

MA Khan, NA Castro‐Guerrero… - Plant, Cell & …, 2018 - Wiley Online Library
Abstract The OLIGOPEPTIDE TRANSPORTER 3 (OPT3) has recently been identified as a
component of the systemic network mediating iron (Fe) deficiency responses in Arabidopsis …

The oligopeptide transporters: a small gene family with a diverse group of substrates and functions?

M Lubkowitz - Molecular Plant, 2011 - cell.com
ABSTRACT Genes in the Oligopeptide Transport family encode integral membrane proteins
that are believed to translocate their substrates from either the extracellular environment or …

OPT3 is a component of the iron-signaling network between leaves and roots and misregulation of OPT3 leads to an over-accumulation of cadmium in seeds

DG Mendoza-Cózatl, Q Xie, GZ Akmakjian, TO Jobe… - Molecular plant, 2014 - cell.com
Plants and seeds are the main dietary sources of zinc, iron, manganese, and copper, but are
also the main entry point for toxic elements such as cadmium into the food chain. We report …

Arabidopsis OPT6 is an oligopeptide transporter with exceptionally broad substrate specificity

S Pike, A Patel, G Stacey… - Plant and cell …, 2009 - academic.oup.com
Oligopeptide transporters (OPTs) are found in fungi, bacteria and plants. The nine
Arabidopsis thaliana OPT genes are expressed mainly in the vasculature and are thought to …

An oligopeptide transporter gene family in Arabidopsis

S Koh, AM Wiles, JS Sharp, FR Naider… - Plant …, 2002 - academic.oup.com
We have identified nine oligopeptide transporter (OPT) orthologs (AtOPT1 to AtOPT9) in
Arabidopsis. These proteins show significant sequence similarity to OPTs of Candida …