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Literature summary extracted from

  • Kosegarten, H.; Hoffmann, B.; Rroco, E.; Grolig, F.; Gluesenkamp, K.H.; Mengel, K.
    Apoplastic pH and FeIII reduction in young sunflower (Helianthus annuus) roots (2004), Physiol. Plant., 122, 95-106.
No PubMed abstract available

Application

EC Number Application Comment Organism
1.16.1.7 agriculture main reason for iron deficiency chlorosis of plants grown on calcareous soils is the inhibition of FeIII reduction in the apoplast and hence Fe2+ uptake into the cytosol Helianthus annuus

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.16.1.7 plasmalemma
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 Helianthus annuus
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Organism

EC Number Organism UniProt Comment Textmining
1.16.1.7 Helianthus annuus
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-
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Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.16.1.7 root
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 Helianthus annuus
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pH Range

EC Number pH Minimum pH Maximum Comment Organism
1.16.1.7 additional information
-
 high pH sensitivity of enzyme, highest activity at apoplastic pH of 4.9, no activity above apoplastic pH of 5.3. Nitrate increases pH value, thus inhibiting enzyme activity, ammonium decreases pH value. Nitrate together with hydrogen carbonate, a combination typical for calcareous soils, has strongest enzyme depressing effect Helianthus annuus