Functional analysis of AtHKT1 in Arabidopsis shows that Na+ recirculation by the phloem is crucial for salt tolerance
By P. Berthomieu, G. Conéjéro, Aurélie Nublat, W. Brackenbury, C. Lambert, Cristina Savio, N. Uozumi, S. Oiki, Katsuyuki Yamada, F. Cellier and 7 more. EMBO Journal, 2003
612 citations recorded by the source corpus.
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/e606ce877af78f4de37cdcaae5461dfd7d1b312d
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Citations in the corpus
- THE ROLE OF CALCIUM IN PLANTS' SALT TOLERANCE (2012, background): “SOS pathway regulates Na+ ion homeostasis by interacting with other regulatory proteins and seems to have additional branches (Berthomieu et al., 2003).”
- Plant salt-tolerance mechanisms (2014, positive): “Disruption mutations in the sole HKT gene in Arabidopsis, AtHKT1;1, which encodes a class I transporter, cause Na+ hypersensitivity of leaves coupled to Na+ overaccumulation in leaves upon salinity stress, with a concomitant reduction in root [Na+] [3,75,76].”
- Plant growth-promoting rhizobacteria and root system functioning (2013, background): “In the shoots, HKT1 functions in phloem tissues to retrieve Na+ from the xylem (Berthomieu et al., 2003) and in the roots it is involved in Na+ uptake (Rus et al., 2001).”
- Regulation of ion homeostasis under salt stress. (2003, background): “[45] have recently shown that Arabidopsis sas2 mutations, which cause overaccumulation of Naþ in the shoot, are allelic to AtHKT.”
- Mechanisms of sodium uptake by roots of higher plants (2009, background): “…tissue Role References AtHKT1;1 Arabidopsis thaliana Xylem parenchyma Control of both root Na+ accumulation and retrieval of Na+ from the xylem Berthomieu et al. (2003); Davenport et al. (2007); Kato et al. (2003); Maser et al. (2002); Rus et al. (2006); Rus et al. (2004); Rus et al. (2001);…”
- Source-to-sink transport of sugar and regulation by environmental factors (2013, background): “Potassium channels are implied in the recirculation of Na+ inside the plant (Berthomieu et al., 2003).”
- Drought and Salinity Stress Responses and Microbe-Induced Tolerance in Plants (2020, background): “The K+ channels are involved in the Na+ recirculation from leaf phloem to roots for exertion, thus diminishing the amount of Na+ in leaves (Berthomieu et al., 2003).”
- Plant Salinity Stress: Many Unanswered Questions Remain (2019, background): “Arabidopsis HKT1 functions in longdistance transport of Na+ via xylem and phloem (Berthomieu et al., 2003; Sunarpi et al., 2005), but in several cereals HKTs can mediate Na+ uptake: In rice, OsHKT2;1 catalyzes Na+ uptake in low K+, low Na+ (<2 mM) conditions (Horie et al., 2007).”
- Understanding Abiotic Stress Tolerance Mechanisms: Recent Studies on Stress Response in Rice (2007, background): “This suggested that in addition to the previously described function (Berthomieu et al. 2003), AtHKT1;1 also unloads Na+ from xylem sap, similar to SKC1.”
- Salinity tolerance in plants: breeding and genetic engineering. (2012, background): “Arabidopsis AtHKT1 carry out circulation of Na+ in plant by mediating Na+ loading in leaf phloem and Na+ unloading from the root phloem sap (Berthomieu et al., 2003).”
- Physiology and molecular biology of stress tolerance in plants (2006, background): “This transporter may be involved in Na+ recirculation from shoot to root, probably by mediating Na+ loading into the phloem in shoots, and unloading in roots (Berthomieu et al., 2003).”
- Smart Engineering of Genetic Resources for Enhanced Salinity Tolerance in Crop Plants (2016, background): “HKT1 also loads NaC into shoot phloem, where handover to roots occurs through the downward stream of phloem (Berthomieu et al., 2003).”