Multimodal imaging analysis in silver fir reveals coordination in cellulose and lignin deposition.

Despite lignin being a key component of wood, the dynamics of tracheid lignification are generally overlooked in xylogenesis studies, which hampers our understanding of environmental drivers and blurs the interpretation of isotopic and anatomical signals stored in tree rings. Here, we analyzed cell wall formation in silver fir (Abies alba Mill.) tracheids to determine if cell wall lignification lags behind secondary wall deposition.

Corrigendum: Detection of a Novel DSPP Mutation by NGS in a Population Isolate in Madagascar.

[This corrects the article on p. 70 in vol. 7, PMID: 26973538.

A targeted next-generation sequencing assay for the molecular diagnosis of genetic disorders with orodental involvement.

Background: Orodental diseases include several clinically and genetically heterogeneous disorders that can present in isolation or as part of a genetic syndrome. Due to the vast number of genes implicated in these disorders, establishing a molecular diagnosis can be challenging. We aimed to develop a targeted next-generation sequencing (NGS) assay to diagnose mutations and potentially identify novel genes mutated in this group of disorders.

Interdisciplinary Care for a Patient with Amelogenesis Imperfecta: A Clinical Report.

This manuscript describes an interdisciplinary approach over a period of 8 years combining surgical and prosthodontic treatment of a young patient diagnosed with hypocalcified-type amelogenesis imperfecta and anterior open bite. The treatment procedures included transitional restorations, orthodontic treatment, and maxillofacial surgery with a one-piece Le Fort I osteotomy, bilateral mandibular osteotomy, and genioplasty. The definitive prosthetic rehabilitation consisted of 28 zirconia-based ceramic single crowns restoring both esthetics and function.

Vapour pressure deficit during growth has little impact on genotypic differences of transpiration efficiency at leaf and whole-plant level: an example from Populus nigra L.

Poplar genotypes differ in transpiration efficiency (TE) at leaf and whole-plant level under similar conditions. We tested whether atmospheric vapour pressure deficit (VPD) affected TE to the same extent across genotypes. Six Populus nigra genotypes were grown under two VPD.

Genotype differences in 13C discrimination between atmosphere and leaf matter match differences in transpiration efficiency at leaf and whole-plant levels in hybrid Populus deltoides x nigra.

(13) C discrimination between atmosphere and bulk leaf matter (Δ(13) C(lb) ) is frequently used as a proxy for transpiration efficiency (TE). Nevertheless, its relevance is challenged due to: (1) potential deviations from the theoretical discrimination model, and (2) complex time integration and upscaling from leaf to whole plant. Six hybrid genotypes of Populus deltoides×nigra genotypes were grown in climate chambers and tested for whole-plant TE (i.

Oral manifestations of patients with Kenny-Caffey Syndrome.

Kenny-Caffey syndrome (KCS) is a rare osteosclerotic bone dysplasia characterized by hypocalcemia, short stature, ophthalmological features, and teeth anomalies. The TBCE gene coding for a tubulin-specific chaperone E, is located at chromosome 1q42-q43, and is responsible for the recessive form. After reviewing the literature, we found around 60 cases, however with limited dental data.

Time course of δ1¹³C in poplar wood: genotype ranking remains stable over the life cycle in plantations despite some differences between cellulose and bulk wood.

Genetic differences in δ¹³C (isotopic composition of dry matter carbon) have been evidenced among poplar genotypes at juvenile stages. To check whether such differences were maintained with age in trees growing in plantations, we investigated the time course of δ¹³C as recorded in annual tree rings from different genotypes growing at three sites in southwestern France and felled at ∼15-17 years. Wood cores were cut from tree discs to record the time course of annual basal area increment (BAI).

Leaf functional response to increasing atmospheric CO(2) concentrations over the last century in two northern Amazonian tree species: a historical δ(13) C and δ(18) O approach using herbarium samples.

We assessed the extent of recent environmental changes on leaf morphological (stomatal density, stomatal surface, leaf mass per unit area) and physiological traits (carbon isotope composition, δ(13)C(leaf) , and discrimination, Δ(13)C(leaf) , oxygen isotope composition, δ(18)O(leaf) ) of two tropical rainforest species (Dicorynia guianensis; Humiria balsamifera) that are abundant in the Guiana shield (Northern Amazonia). Leaf samples were collected in different international herbariums to cover a 200 year time-period (1790-2004) and the whole Guiana shield. Using models describing carbon and oxygen isotope fractionations during photosynthesis, different scenarios of change in intercellular CO(2) concentrations inside the leaf (C(i)), stomatal conductance (g), and photosynthesis (A) were tested in order to understand leaf physiological response to increasing air CO(2) concentrations (C(a)).

A study of polymorphism in human AMELX.

Amelogenin gene (AMEL) encodes for a protein that plays important roles in the organization and structure of enamel. A recent evolutionary analysis of AMELX in mammals has revealed, aside to well-conserved 5' and 3' regions, a variable region located in the largest exon (exon 6), which strongly suggested the possible existence of polymorphism in human AMELX. A detailed analysis of this region was of fundamental importance for genetic studies.