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Assessing the role of biostimulant AdvanceFG+ in regulating Arabidopsis thaliana growth and flowering development
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Date
2024
Authors
Tolak, Sanata
Journal Title
Journal ISSN
Volume Title
Publisher
University College Cork
Published Version
Abstract
Plant growth responses depend on photoperiod (hours of light), water availability, and nutrient levels. These signals are then integrated by various signaling pathways, one of the most relevant of which is the Target of Rapamycin (TOR). Therefore, specific biostimulants may affect plant growth and development by modulating these signaling pathways. To address this hypothesis, we characterized specific growth responses (e.g. rosette area, fresh and dry weight, yield) and developmental transformations (e.g. flowering time) of Arabidopsis thaliana plants grown in soil, maintained under control conditions or treated with biostimulants. In parallel, we investigated the accumulation of different components of the TOR pathway, such as its direct target, ribosomal protein kinase 6 40S (S6K). Our findings show that biostimulant treatments promote early flowering without detrimental effects on the overall rosette area, which is also comparable to the accumulation of total S6K protein. However, the treated plants also increased total biomass and yield. These findings suggest that the use of biostimulants can promote specific developmental changes such as flowering time, a critical agricultural trait with additional economic value.
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Keywords
Arabidopsis thaliana , Biostimulants , TOR pathway , S6 kinase , Ribosomal protein S6A
Citation
Tolak, S. 2024. Assessing the role of biostimulant AdvanceFG+ in regulating Arabidopsis thaliana growth and flowering development. MRes Thesis, University College Cork.