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Modified Organism
Maize with altered growth and tolerance to herbicides
Record information and status
Record ID
Date of creation
2012-04-24 11:18 UTC (didier.breyer@wiv-isp.be)
Date of last update
2012-08-23 20:04 UTC (dina.abdelhakim@cbd.int)
Date of publication
2012-08-23 20:04 UTC (dina.abdelhakim@cbd.int)

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
Maize with altered growth and tolerance to herbicides
Transformation event
Zea Mays GA20OX1
Prof. Dr. Frank Van Breusegem
Departement Planten Systeembiologie
Technologiepark 927
Belgium, 9052
Phone:+ 32 (0)9 33 13 920
The genetically modified maize has an altered growth characteristic resulting from the introduction of a Gibberelin 20 Oxidase-1 gene from Arabidopsis thaliana. The plants become significantly longer without producing significantly more biomass.

Additionally the bar-gene from Streptomyces hygroscopicus is present in the plant as a selection marker gene. This bar-gene produces the Phosphinotricin Acetyl Transferase enzyme (PAT), which acetylates phosphinotricin, also known as glufosinate, the active ingredient of herbicides such as Basta and Liberty.
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.
Zea mays - Maize, Corn, MAIZE
Point of collection or acquisition of the recipient organism
Cultivar/ Breeding line: inbred line B104
Characteristics of the transformation process
Agrobacterium Ti plasmid
Techniques used for the modification
  • Agrobacterium-mediated DNA transfer
Genetic elements construct
Ti plasmid left border repeat
0.00 Kb
Phosphinothricin N-acetyltransferase gene
0.00 Kb
CaMV 35S promoter
0.00 Kb
AttB λ attachment site
0.00 Kb
Ubiquitin gene promoter
0.00 Kb
AttB λ attachment site
0.00 Kb
Gibberellin 20 Oxidase-1 gene
0.00 Kb
AttB λ attachment site
0.00 Kb
CaMV 35S terminator
0.00 Kb
Ti plasmid right border repeat
0.00 Kb
Further details
Notes regarding the genetic elements introduced or modified in this LMO
The LMO contains 3 mutated versions of the AttB gene that was originally isolated from E.coli. The genes are designated as Attb4, AttB1 and AttB2. They are ordered as stated within the construct.
LMO characteristics
Modified traits
Common use(s)
  • Food
  • Feed
  • Biofuel

Records referencing this document (2)
2record(s) found
Modified Organism1 record
Risk Assessment1 record