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Modified Organism
Potato modified for reduced tuber amino acids content
Record information and status
Record ID
Date of creation
2016-11-11 13:13 UTC (german_bch@bvl.bund.de)
Date of publication
2017-01-10 16:18 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 reduced tuber amino acids content
Transformation event
StAAP2/12, StAAP2/18, StAAP2/27, StAAP2/38, StAAP2/44, StAAP2/48, StAAP2/150 to StAAP2/180
Universität Tübingen
Eberhard Karls Universität Tübingen
72074 Tübingen
Phone:+49 7071 29-0
Fax:+49 7071 29-5990
Url:Eberhard Karls Universität Tübingen
A fragment of the gene coding for the amino acid permease 2 from Solanum tuberosum, which is expressed predominantly in stems, is constitutively expressed in an antisense orientation in the transgenic potato plants.

As a result of the genetic modification, the production of endogenous amino acid permease is inhibited thereby leading to a reduction in amino acid transport to the tubers and, consequently, resulting in a reduction in the content of soluble nitrogen compounds in the tubers.

Even though some anti-AAP2 lines demonstrate a significant reduction in StAAP2 mRNA in the stems, they do not show any changes in regard to the Nitrogen/Carbon ratio, amino acid composition or the carbohydrate content in the tubers.
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
Related LMOs
Potato modified for reduced tuber amino acids content
Universität Tübingen Changes in quality and/or metabolite content - Protein and amino acids Resistance to antibiotics - Kanamycin
Characteristics of the transformation process
Derivative of pBIN19
Techniques used for the modification
  • Agrobacterium-mediated DNA transfer
Genetic elements construct
CaMV 35S promoter
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Amino acid permease 2 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
LMO characteristics
Modified traits
Common use(s)
  • Research

Records referencing this document (3)
3record(s) found
Country's Decision or any other Communication1 record
Modified Organism1 record
Risk Assessment1 record