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Literature summary for 7.3.2.1 extracted from

  • Nagarajan, V.K.; Jain, A.; Poling, M.D.; Lewis, A.J.; Raghothama, K.G.; Smith, A.P.
    Arabidopsis Pht1;5 mobilizes phosphate between source and sink organs and influences the interaction between phosphate homeostasis and ethylene signaling (2011), Plant Physiol., 156, 1149-1163.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 7.3.2.1

Protein Variants

Protein Variants Comment Organism
additional information construction of Pht1;5 deletion and overexpression mutants, phenotypes, detailed overview. Pht1;5 overexpression alters Root hair development and primary root growth in association with ethylene signaling Arabidopsis thaliana

Inhibitors

Inhibitors Comment Organism Structure
additional information phosphate deficiency results in significant reductions in the total shoot phosphate accumulation in all genotypes. The shoot fresh weight of the wild type grown on arsenate is 42% compared with that of untreated wild-type seedlings Arabidopsis thaliana

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
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-
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Source Tissue

Source Tissue Comment Organism Textmining
cauline leaf
-
 Arabidopsis thaliana
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flower very low expression level of Pht1;5 Arabidopsis thaliana
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root
-
 Arabidopsis thaliana
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rosette leaf
-
 Arabidopsis thaliana
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seedling the shoot fresh weight of the wild type grown on arsenate is 42% compared with that of untreated wild-type seedlings Arabidopsis thaliana
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shoot
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 Arabidopsis thaliana
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Synonyms

Synonyms Comment Organism
inorganic phosphate transporter
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 Arabidopsis thaliana
Pht1;5
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 Arabidopsis thaliana
Pi transporter
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 Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction Pht1;5-defective mutants show reduced phosphate allocation to shoots and elevated transcript levels for several phosphate starvation-response genes under low-phosphate conditions, under phosphate-replete conditions, pht1;5-1 has higher shoot phosphate content compared to the wild-type but has reduced phosphate content in roots. Overexpression of Pht1;5 affects the distribution and remobilization of phosphate between source and sink. Constitutive overexpression of Pht1;5 has the opposite effect on phosphate distribution: namely, lower phosphate levels in shoots and higher phosphate content in roots compared to the wild-type. Pht1;5 overexpression also results in altered phosphate remobilization, as evidenced by a greater than 2fold increase in the accumulation of phosphate in siliques, premature senescence, and an increase in transcript levels of genes involved in phosphate scavenging. Furthermore, Pht1;5 overexpressors exhibit increased root hair formation and reduced primary root growth that could be rescued by the application of silver nitrate, an ethylene perception inhibitor, or aminoethoxyvinylglycine, an ethylene biosynthesis inhibitor, respectively. Ethylene signaling in modulating the primary root and root hair phenotypes of Pht1;5 overexpression lines, overview Arabidopsis thaliana
physiological function Arabidopsis thaliana Pht1;5 is implicated in mobilizing stored phosphate out of older leaves, it mobilizes phosphate between source and sink organs and influences the interaction between phosphate homeostasis and ethylene signaling. Pht1;5 is involved in the mobilization of phosphate from shoots to roots during high-phosphate conditions, remobilization of phosphate from senescing to metabolically active parts of the plant Arabidopsis thaliana