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Modified Organism
Potato modified for altered carbohydrate metabolism
Record information and status
Record ID
Date of creation
2016-09-06 11:43 UTC (german_bch@bvl.bund.de)
Date of publication
2016-09-06 20:41 UTC (dina.abdelhakim@cbd.int)

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Living Modified Organism identity
The image below identifies the LMO through its unique identifier, trade name and a link to this page of the BCH. Click on it to download a larger image on your computer. For help on how to use it go to the LMO quick-links page.

LMO name
Potato modified for altered carbohydrate metabolism
Transformation event
Multiple events: B33::cwiso-5, B33::cwiso-12 and B33::cwiso-26
Institut für Pflanzengenetik und Kulturpflanzenforschung
Corrensstrasse 3 
Germany, 06466
Phone:+49 (0)39482 5-0
Fax:+49 (0) 39482 5139
Url:IPK Gatersleben
Isomaltulose (also marketed as palatinose, 6-O-α-D-glucopyranosyl-D-fructose) is an isomer of sucrose. It can be synthesised by the sucrose isomerase gene palI from Erwinia rhapontici which converts sucrose mainly into its isomaltulose isomer.

Potato plants were modified to insert  a chimeric sucrose isomerase gene from Erwinia rhapontici under the control of a tuber-specific promoter. As a result of the genetic modification a change in the carbohydrate metabolism of the potato tubers is expected in such a way that isomaltulose is synthesised in the potato tubers while the sucrose concentration is decreased.
Recipient Organism or Parental Organisms
The term Recipient organism refers to an organism (either already modified or non-modified) that was subjected to genetic modification, whereas Parental organisms refers to those that were involved in cross breeding or cell fusion.
Solanum tuberosum - Potato, SOLTU
Characteristics of the transformation process
Techniques used for the modification
  • Agrobacterium-mediated DNA transfer
Genetic elements construct
B33 gene promotor
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Proteinase inhibitor II transit peptide
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Sucrose isomerase gene
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Octopine Synthase Gene Terminator
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Nopaline Synthase Gene Promoter
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Neomycin Phosphotransferase II
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Nopaline Synthase Gene Terminator
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Further details
Notes regarding the genetic elements introduced or modified in this LMO
The transit peptide of the proteinase inhibitor II from Solanum tuberosum is fused to the N-terminus of the palI gene. The signal peptide of the proteinase inhibitor II  governs secretion of the enzyme into the apoplasmic space.
LMO characteristics
Modified traits
Common use(s)
  • Research
Additional Information
Other relevant website address or attached documents

Records referencing this document (2)
2record(s) found
Country's Decision or any other Communication1 record
Risk Assessment1 record