References of "Suurs, Luc"
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See detailTransformed Plant Expressing a Mutansucrase and Synthesizing a Modified Starch
Jacon, Géraldine ULg; Frohberg, Claus; Vincken, Jean-Paul et al

Patent (2009)

The present invention relates to plant cells and plants, which are genetically modified, wherein the genetic modification leads to the expression in plastids of such plant cells and plants of an enzyme ... [more ▼]

The present invention relates to plant cells and plants, which are genetically modified, wherein the genetic modification leads to the expression in plastids of such plant cells and plants of an enzyme having the activity of a mutansucrase. Furthermore, the present invention relates to means and methods for the manufacture of such plant cells and plants. Plant cells and plants of this type synthesise a modified starch. The present invention therefore also relates to the starch synthesised by the plant cells and plants according to the invention as well as to methods for the manufacture of the starch and to the manufacture of starch derivatives of this modified starch. [less ▲]

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See detailTransformed Plant Expressing a Dextransucrase and Synthesizing a Modified Starch
Jacon, Géraldine ULg; Frohberg, Claus; Vincken, Jean-Paul et al

Patent (2009)

The present invention relates to plant cells and plants, which are genetically modified, wherein the genetic modification leads to the expression in plastids of such plant cells and plants of an enzyme ... [more ▼]

The present invention relates to plant cells and plants, which are genetically modified, wherein the genetic modification leads to the expression in plastids of such plant cells and plants of an enzyme having the activity of a dextransucrase. Furthermore, the present invention relates to means and methods for the manufacture of such plant cells and plants. Plant cells and plants of this type synthesis a modified starch. The present invention therefore also relates to the starch synthesized by the plant cells and plants according to the invention as well as to methods for the manufacture of the starch and to the manufacture of starch derivatives of this modified starch. [less ▲]

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See detailExpression of alternansucrase in potato plants
Jacon, Géraldine ULg; Vincken, Jean-Paul; Suurs, Luc et al

in Biotechnology Letters (2007), 29

Alternan, which consists of alternating alpha(1 - 3)/alpha (1 - 6)-linked glucosyl residues, was produced in potato tubers by expressing a mature alternansucrase (Asr) gene from Leuconostoc mesenteroides ... [more ▼]

Alternan, which consists of alternating alpha(1 - 3)/alpha (1 - 6)-linked glucosyl residues, was produced in potato tubers by expressing a mature alternansucrase (Asr) gene from Leuconostoc mesenteroides NRRL B-1355 in potato. Detection of alternan was performed by enzyme-linked immunosorbent assay in tuber juices, revealing a concentration between 0.3 and 1.2 mg g–1 fresh wt. The Asr transcript levels correlated well with alternan accumulation in tuber juices. It appeared that the expression of sucrose-regulated starch- synthesizing genes (ADP-glucose pyrophosphorylase subunit S and granule-bound starch synthase I) was down-regulated. Despite this, the physico- chemical properties of the transgenic starches were unaltered. These results are compared to those obtained with other transgenic potato plants producing mutan [alpha (1 - 3)-linked glucosyl residues and dextran [alpha (1 - 6)-linked glucosyl residues]. [less ▲]

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