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Regulation of meristem and hormone function revealed through analysis of directly-regulated SHOOT MERISTEMLESS target genes.
Sci Rep
January 2025
School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK.
The Arabidopsis Knotted1-like homeobox (KNOX) gene SHOOT MERISTEMLESS (STM) encodes a homeodomain transcription factor that operates as a central component of the gene regulatory network (GRN) controlling shoot apical meristem formation and maintenance. It regulates the expression of target genes that include transcriptional regulators associated with meristem function, particularly those involved in pluripotency and cellular differentiation, as well as genes involved in hormone metabolism and signaling. Previous studies have identified KNOX-regulated genes and their associated cis-regulatory elements in several plant species.
View Article and Find Full Text PDFOptimising Venturi flume oxygen transfer efficiency using uncertainty-aware decision trees.
Water Sci Technol
December 2024
Department of Civil Engineering, National Institute of Technology Kurukshetra, Haryana 136119, India.
This study optimizes standard oxygen transfer efficiency (SOTE) in Venturi flumes investigating the impact of key parameters such as discharge per unit width (), throat width (), throat length (), upstream entrance width (), and gauge readings ( and ). To achieve this, a comprehensive experimental dataset was analyzed using multiple linear regression (MLR), multiple nonlinear regression (MNLR), gradient boosting machine (GBM), extreme gradient boosting (XRT), random forest (RF), M5 (pruned and unpruned), random tree (RT), and reduced error pruning (REP). Model performance was evaluated based on key metrics: correlation coefficient (CC), root mean square error (RMSE), and mean absolute error (MAE).
View Article and Find Full Text PDFIdentification of 3-hydroxy-3-methylglutaryl monoacyl-coenzyme A reductase (HMGR) associated with the synthesis of terpenoids in Santalum album L.
Gene
December 2024
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, The Chinese Academy of Sciences, Guangzhou 510650, China. Electronic address:
Santalum album is an economically important plant in the craft, spices and medicine industries. The main chemical constituents found in sandalwood essential oils are sesquiterpenes. 3-Hydroxy-3-methylglutaryl monoacyl-coenzyme A reductase (HMGR) is one of the rate-limiting enzymes required for the synthesis of sandal sesquiterpenes, but there are no studies on the HMGR gene in S.
View Article and Find Full Text PDFIntrinsic cues guiding changes in division orientation in the Arabidopsis root meristem - a formative experience.
J Exp Bot
December 2024
Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium.
The orientation of cell divisions is crucial for normal development of all plant organs throughout their lifecycle. Despite the importance of understanding the intricate molecular mechanisms guiding this process, relatively few pathways have been characterized to date. Here we want to outline what is known about the molecular regulation guiding changes in division orientation in the root apical meristem of the model plant Arabidopsis thaliana, from the upstream transcriptional modules to the downstream executors that lead to division plane establishment.
View Article and Find Full Text PDFInvestigation of the association between COX-2 polymorphisms and external apical root resorption in orthodontically treated patients.
Clin Oral Investig
December 2024
Postgraduate Program in Dentistry, School of Dentistry, Fluminense Federal University, Niterói, RJ, Brazil.
Article Synopsis
- This study investigates the link between specific genetic variations (SNPs) in the COX-2 gene and the occurrence of external apical root resorption (EARR) in patients after orthodontic treatment.* -
- Data was collected from 143 orthodontic patients, with analyses focusing on the maxillary central incisors and first mandibular molars, and two SNPs (rs5275 and rs689466) were genotyped using real-time PCR.* -
- Results show that patients carrying one copy of the G allele for SNP rs5275 have a significant increase in EARR for mandibular molars, suggesting that COX-2 genetic factors may influence the risk of root resorption during orthodontic care.*
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