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Literature summary for 2.4.1.13 extracted from

  • Galibina, N.; Novitskaya, L.; Krasavina, M.; Moshchenskaya, Y.
    Activity of sucrose synthase in trunk tissues of Karelian birch during cambial growth (2015), Russ. J. Plant Physiol., 62, 381-389.
No PubMed abstract available
Search for more literature for 2.4.1.13

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Betula pendula

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
UDP-glucose + D-fructose Betula pendula
-
 UDP + sucrose
-
 r

Organism

Organism UniProt Comment Textmining
Betula pendula
-
 var. pendula and var. carelica
-

Source Tissue

Source Tissue Comment Organism Textmining
phloem activity of sucrose synthase and the content of starch in the xylem and phloem of the two birch varieties, 40-year-old trees, and 8-year-old trees of Betula carelica, overview Betula pendula
-
xylem activity of sucrose synthase and the content of starch in the xylem and phloem of the two birch varieties, 40-year-old trees, and 8-year-old trees of Betula carelica, overview Betula pendula
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-glucose + D-fructose
-
 Betula pendula UDP + sucrose
-
 r

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
 assay at Betula pendula

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.4
-
 assay at Betula pendula

General Information

General Information Comment Organism
physiological function low enzyme activity during cambial growth reduces sink capacity of xylem tissues, thus leading to a considerable increase in the sucrose content in the phloem, which can alter the program of cell development in the cambial zone of Karelian birch. Specific texture of Karelian birch wood emerges as a result of deviations in cambial activity, overview. Upon the decline in cambial activity, the dynamics of changes in enzyme activity in Karelian birch is similar to that in common birch: in xylem tissues the enzyme activity becomes lower but the lowering is not as strong as in Betula pendula var. pendula. In phloem tissues the enzyme activity increases but, in contrast to common birch, this increase is not accompanied by substantial accumulation of starch in parenchymal cells of the phloem Betula pendula