English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Summary  Geranylgeranyl pyrophosphate synthase ( GGPS ) is a key enzyme for a structurally diverse class of isoprenoid biosynthetic metabolites including gibberellins, carotenoids, chlorophylls and rubber. We expressed a chloroplast‐targeted   GGPS   isolated from sunflower ( Helianthus annuus ) under control of the cauliflower mosaic virus 35S promoter in tobacco ( Nicotiana tabacum ). The resulting transgenic tobacco plants expressing heterologous   GGPS   showed remarkably enhanced growth (an increase in shoot and root biomass and height), early flowering, increased number of seed pods and greater seed yield compared with that of   GUS  ‐transgenic lines (control) or wild‐type plants. The gibberellin levels in  Ha GGPS  ‐transgenic plants were higher than those in control plants, indicating that the observed phenotype may result from increased gibberellin content. However, in  Ha GGPS  ‐transformant tobacco plants, we did not observe the phenotypic defects such as reduced chlorophyll content and greater petiole and stalk length, which were previously reported for transgenic plants expressing gibberellin biosynthetic genes. Fast plant growth was also observed in  Ha GGPS  ‐expressing  Arabidopsis  and dandelion plants. The results of this study suggest that   GGPS   expression in crop plants may yield desirable agronomic traits, including enhanced growth of shoots and roots, early flowering, greater numbers of seed pods and/or higher seed yield. This research has potential applications for fast production of plant biomass that provides commercially valuable biomaterials or bioenergy.

plant biotechnology journal

Heterologous expression of chloroplast‐localized  geranylgeranyl pyrophosphate synthase  confers fast plant growth, early flowering and increased seed yield