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Literature summary for 1.14.11.13 extracted from

  • Ozga, J.A.; Reinecke, D.M.; Ayele, B.T.; Ngo, P.; Nadeau, C.; Wickramarathna, A.D.
    Developmental and hormonal regulation of gibberellin biosynthesis and catabolism in pea fruit (2009), Plant Physiol., 150, 448-462.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 1.14.11.13

Activating Compound

Activating Compound Comment Organism Structure
4-chloroindole-3-acetic acid auxin hormone increases PsGA2ox2 mRNA levels up to 4 h after application, 8 h after application levels are down to deseeded pericarp levels, seed-presence induces increase in PsGA2ox2 transcripts that is reduced by day 5 after anthesis Pisum sativum
gibberellin 3 application to deseeded pericarps increases PsGA2ox2 levels 8 h after application Pisum sativum
additional information no effect of the auxin hormone indole-3-acetic acid during the 12 h treatment period Pisum sativum

Inhibitors

Inhibitors Comment Organism Structure
4-chloroindole-3-acetic acid auxin hormone from seeds decreases PsGA2ox1 mRNA levels 2 h after application to deseeded pericarps and remains low throughout the treatment period Pisum sativum
gibberellin 3 application to deseeded pericarps decreases PsGA2ox1 transcript abundance within 2 h but less significant as 4-chloroindole-3-acetic acid or the presence of seeds Pisum sativum
indole-3-acetic acid auxin hormone from seeds decreases PsGA2ox1 mRNA levels 2 h after application to deseeded pericarps, sharply increases after 4 h and stays elevated Pisum sativum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
gibberellin + 2-oxoglutarate + O2 Pisum sativum
-
 2beta-hydroxygibberellin + succinate + CO2
-
 ?
gibberellin + 2-oxoglutarate + O2 Pisum sativum catabolization of biologically active gibberellin 2beta-hydroxygibberellin + succinate + CO2
-
 ?

Organism

Organism UniProt Comment Textmining
Pisum sativum Q9SQ80 gibberellin 2-oxidase 1; wild-type Alaska, slender pea mutant (sln) deficient in PsGA2ox1
-
Pisum sativum Q9XHM5 giberellin 2-oxidase 2; wild-type Alaska
-

Source Tissue

Source Tissue Comment Organism Textmining
pericarp elevated PsGA2ox2 transcript levels 2 days prior to anthesis, directly after pollination decrease, removal of seeds 2-3 days after anthesis leads to inhibition of transitory increase of PsGA2ox2 observed in seed-containing pericarps, reduction of PsGA2ox2 by day 5 after anthesis, seed presence represses the expression of PsGA2ox2 during days 5-12 after anthesis Pisum sativum
-
pericarp high levels of PsGA2ox1 prior to anthesis, reduced increase (15fold) of PsGA2ox1 mRNA levels directly after pollination compared to unpollinated pericarp (50-fold increase), decrease of pollinated and unpollinated levels one day after anthesis and further, concomitant with high pericarp growth rates, removal of seeds 2-3 days after anthesis increases PsGA2ox1 transcript levels compared to seed-containing pericarp, seed presence represses the expression of PsGA2ox1 during days 5-12 after anthesis, unpollinated ovaries degenerate after 4 d Pisum sativum
-
pericarp major nutrient sink in the developing pea fruit until 8-12 days after pollination Pisum sativum
-
seed from day 10-12 PsGA2ox1 levels increase dramatically and remain elevated through day 20 after anthesis, high levels of PsGA2ox1 mRNA are found in testa compared with the cotyledons at day 26 after anthesis Pisum sativum
-
seed presence of seeds is required for normal development of fruit from pericarp, removal of seeds leads to slowing of pericarp growth and subsequent abscission, the seed is the terminal nutrient sink when the development of the pea embryo begins Pisum sativum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
gibberellin + 2-oxoglutarate + O2
-
 Pisum sativum 2beta-hydroxygibberellin + succinate + CO2
-
 ?
gibberellin + 2-oxoglutarate + O2 catabolization of biologically active gibberellin Pisum sativum 2beta-hydroxygibberellin + succinate + CO2
-
 ?
gibberellin 1 + 2-oxoglutarate + O2
-
 Pisum sativum gibberellin 8 + succinate + CO2 biologically inactive product ?
gibberellin 20 + 2-oxoglutarate + O2
-
 Pisum sativum gibberellin 29 + succinate + CO2 inactivated product ?

Synonyms

Synonyms Comment Organism
gibberellin 2-oxidase
-
 Pisum sativum
gibberellin 2-oxidase 1
-
 Pisum sativum
giberellin 2-oxidase 2
-
 Pisum sativum
PsGA2ox1
-
 Pisum sativum
PsGA2ox2
-
 Pisum sativum