Sunflower Enzyme Improves Agronomic Traits in Tobacco
January 6, 2016| |
Geranylgeranyl pyrophosphate synthase (GGPS) is a key enzyme for a structurally diverse class of isoprenoid biosynthetic metabolites. The team of Sandeep Kumar Tata of the University of Science and Technology in South Korea expressed a chloroplast-targeted GGPS from sunflower (Helianthus annuus) in tobacco (Nicotiana tabacum).
The transgenic tobacco plants expressing GGPS showed enhanced growth, early flowering, increased number of seed pods and greater seed yield compared to wild-type plants. The gibberellin levels in HaGGPS-transgenic plants were also higher, suggesting that the observed phenotype may be from increased gibberellin content. However, phenotypic defects previously reported for transgenic plants expressing gibberellin biosynthetic genes were absent.
The results of this study suggest that GGPS expression in crop plants may yield desirable agronomic traits. This research has potential applications for fast production of plant biomass that provides commercially valuable biomaterials or bioenergy.
To read learn more, vread the full article in Plant Biotechnology Journal.
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