14-3-3 Lambda Protein Affects Anthocyanin Production in Arabidopsis thaliana during Drought Stress
Bibliographic record
Abstract
Plants evolve to adapt to environmental stresses, including changes at the genetic and molecular levels. For bioengineers to utilize genetic manipulation to build tolerance into crops, a better understanding of the mechanism is needed. Published studies have demonstrated that 14-3-3 Lambda (14-3-3 Lambda) protein affect the phenylpropanoid (Pp) biosynthetic pathway and alters production of flavonoids and downstream compounds of importance for stress tolerance. The 14-3-3 family of proteins binds to many different client proteins and serves as signaling scaffolds. In this study 14-3-3 Lambda knockout mutants were used to investigate changes in metabolite accumulation in the downstream Pp pathway. Amongst them are anthocyanins which are important antioxidants involved in a variety of plant functions including stress response. Investigating how drought stress influenced anthocyanin production identified nodes in the Pp pathway affected by 14-3-3 Lambda. A metabolomics analysis employing high resolution mass spectrometry (HRMS) and metabolomics software was used to identify metabolites in 14-3-3 knockout which changed relative to wild-type A. thaliana (Columbia-0) during drought stress. The metabolites Cy-3-p-coumaurolysinapoylsophoroside-5-diglucoside, 3-caffeoylferuloylsophoroside- 5-succinoylglucoside, 3-caffeoylferuloylsophoroside-5-malonyldiglucoside, 3-feruloylsophoroside-5-succinoyl glucoside, petunidin-3,5-O-diglucoside and malvidin-3-O-p-coumarylmonoglucoside show significant differences in their profiles ranging from 18- to > 500-fold between the Col-0 and 14-3-3 Lambda knockout in wet and dry groups. The findings suggest that 14-3-3 Lambda interacts along the CHS, and CHI nodes, which in turn regulate the downstream production of specific anthocyanins. The interaction of 14-3-3 Lambda with CHS was confirmed using co-immunoprecipitation and co-localization studies. This study supports the hypothesis that manipulation of gene expression of 14-3-3 Lambda can lead to development of drought tolerance in plants.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".