Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.1.3.12 extracted from

  • Kretzschmar, T.; Pelayo, M.A.; Trijatmiko, K.R.; Gabunada, L.F.; Alam, R.; Jimenez, R.; Mendioro, M.S.; Slamet-Loedin, I.H.; Sreenivasulu, N.; Bailey-Serres, J.; Ismail, A.M.; Mackill, D.J.; Septiningsih, E.M.
    A trehalose-6-phosphate phosphatase enhances anaerobic germination tolerance in rice (2015), Nat. Plants, 1, 15124 .
    View publication on PubMed
Search for more literature for 3.1.3.12

Cloned(Commentary)

Cloned (Comment) Organism
OsTPP7 promoter-GUS expression and effects of OsTPP7 expression on global transcript levels, overview. When grown under 16 h daylight for 6 days, pOsTPP7::GUS activity is not evident in leaves but present in roots Oryza sativa Japonica Group

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
alpha,alpha-trehalose 6-phosphate + H2O Oryza sativa Japonica Group
-
 alpha,alpha-trehalose + phosphate
-
 ?

Organism

Organism UniProt Comment Textmining
Oryza sativa Japonica Group Q6H5L4 a Myanmar landrace, Khao Hlan On (KHO)
-

Source Tissue

Source Tissue Comment Organism Textmining
additional information increase in OsTPP7 expression between 2 and 4 days of growth in the dark under submergence, elevated expression under submergence and an absence of OsTPP7 expression in leaves. Anaerobic germination is tolerated through the presence of a functional OsTPP7 gene Oryza sativa Japonica Group
-
root
-
 Oryza sativa Japonica Group
-
seedling
-
 Oryza sativa Japonica Group
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alpha,alpha-trehalose 6-phosphate + H2O
-
 Oryza sativa Japonica Group alpha,alpha-trehalose + phosphate
-
 ?

Synonyms

Synonyms Comment Organism
OsTPP7
-
 Oryza sativa Japonica Group
TPP7
-
 Oryza sativa Japonica Group
trehalose-6-phosphate phosphatase
-
 Oryza sativa Japonica Group
trehalose-phosphate phosphatase 7 UniProt Oryza sativa Japonica Group

Expression

Organism Comment Expression
Oryza sativa Japonica Group generation of enzyme overexpression lines and enzyme knockout null mutant lines. Two independent OX and Dongjin have significantly greater coleoptile lengths (1.5-2.6fold) and amylase activity (1.5-2.9fold) than their respective null segregants (transgene-lacking siblings) and the OsTPP7 knockout line additional information

General Information

General Information Comment Organism
malfunction two independent OX and Dongjin have significantly greater coleoptile lengths (1.5-2.6fold) and amylase activity (1.5-2.9fold) than their respective null segregants (transgene-lacking siblings) and the OsTPP7 knockout line Oryza sativa Japonica Group
metabolism OsTPP7 is involved in trehalose-6-phosphate (T6P) metabolism, central to an energy sensor that determines anabolism or catabolism depending on local sucrose availability. OsTPP7 activity may increase sink strength in proliferating heterotrophic tissues by indicating low sugar availability through increased alpha,alpha-trehalose 6-phosphate turnover, thus enhancing starch mobilization to drive growth kinetics of the germinating embryo and elongating coleoptile, which consequently enhances anaerobic germination tolerance Oryza sativa Japonica Group
additional information comparisons of phenotypes of OsTPP7 present and absent Oryza sativa lines Oryza sativa Japonica Group
physiological function expression of the OsTPP7 allele enhances anaerobic germination tolerance in all lines investigated, as monitored by coleoptile length and alpha-amylase activity after 4 days of growth in the dark under submergence. OsTPP7 activity results in higher sucrose availability. Although trehalose 6-phosphate contents are not statistically distinguishable between genotypes, the relative amount of trehalose 6-phosphate to sucrose decreases in OsTPP7-containing lines, indicating a change in trehalose 6-phosphate/sucrose homeostasis. Anaerobic germination is tolerated through the presence of a functional OsTPP7 gene Oryza sativa Japonica Group