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The asymmetry engine: how plants harness asymmetries to shape their bodies.
New Phytol
January 2025
Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre (UPSC), Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden.
Plant development depends on growth asymmetry to establish body plans and adapt to environmental stimuli. We explore how plants initiate, propagate, and regulate organ-wide growth asymmetries. External cues, such as light and gravity, and internal signals, including stochastic cellular growth variability, drive these asymmetries.
View Article and Find Full Text PDFEvaluation by Scanning Electron Microscopy and Energy Dispersive X-Ray Spectroscopy of the Effects of Root Canal Instrumentation on the Radicular Dentine.
Microsc Res Tech
January 2025
Faculty of Dental Medicine, Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania.
One area of technological advancement has been the shift from stainless steel hand tools to nickel-titanium (Ni-Ti) rotary tools. This paper aims to perform an in vitro comparative study to evaluate the efficacy of five endodontic manual and rotary instruments such as Kerr files, Orodeka Plex V, ProTaper Flydent NiTi super files, and ProTaper Flydent NiTi super files in combination with an ultrasonic endodontic E3D Diamantata EMS scaler used for root canal shaping. The following aspects were highlighted: effective removal of smear layer (SL) from the dentinal tubules in the coronal 1/3, middle 1/3, and apical 1/3 of the root canal, appearance of cracks in the dentinal walls by SEM analysis, and highlighting of dentin mineral content and remnant debris by EDX analysis.
View Article and Find Full Text PDFDual role of Xenopus Odf2 in multiciliated cell patterning and differentiation.
Dev Biol
January 2025
Aix Marseille Univ, CNRS, IBDM, Turing Centre for Living Systems, Marseille, France. Electronic address:
In developing tissues, the number, position, and differentiation of cells must be coordinately controlled to ensure the emergence of physiological function. The epidermis of the Xenopus embryo contains thousands of uniformly distributed multiciliated cells (MCCs), which grow hundreds of coordinately polarized cilia that beat vigorously to generate superficial water flow. Using this model, we uncovered a dual role for the conserved centriolar component Odf2, in MCC apical organization at the cell level, and in MCC spatial distribution at the tissue level.
View Article and Find Full Text PDFIntroducing subgen. a new and very small lineage sharing with () an identical, largely circum-Pacific distribution pattern.
Fungal Syst Evol
December 2024
CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P. R. Chin.
The application of DNA data on a worldwide sampling has revolutionized the infrageneric classification of the highly diverse ectomycorrhizal genus . Based on collections made in New Zealand, East Asia and North America, this study describes a new subgenus , the ninth subgenus of . Even though BLASTn of the ITS sequences suggested affinities with species of subgenera and the phylogenetic analysis based on a five-locus DNA dataset placed the target samples in an independent major clade that is taxonomically equivalent to subgenus.
View Article and Find Full Text PDFEfficacy of Canal Disinfectants Temoporfin, Carbon Nanoparticles, and Er: YAG Laser on Martens Hardness, Smear Layer Removal, and Bond Strength of Glass Fiber Posts to Canal Dentin.
Photodiagnosis Photodyn Ther
January 2025
Department of Prosthetic Dental Sciences, College of Dentistry. King Saud University. Riyadh, Saudi Arabia PO Box-60169. Electronic address:
Aim: To investigate the effectiveness of unconventional post space disinfection techniques, specifically Er:YAG laser, Temoporfin, and Carbon Nanoparticles (CNPs), in improving Martens hardness (MH), eliminating the smear layer (SL), and enhancing the push-out bond strength (PBS) of glass fiber posts in canal dentin.
Methods: An in vitro study was conducted utilizing 80 single-rooted extracted human teeth, which were decoronated and subjected to standardized root canal preparation. The teeth were equally distributed into four experimental groups: Group 1 (NaOCl + EDTA), Group 2 (Er: YAG laser + EDTA), Group 3 (Temoporfin + EDTA), and Group 4 (CNPs + EDTA).
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