Alternative carbon sources for the production of plant cellular agriculture: a case study on acetate.

Plant cellular agriculture aims to disrupt the way plant derived products are produced. Plant cell cultures are typically grown with sucrose as the primary carbon and energy source, but alternative carbon sources may have advantages over sucrose including less strain on food systems, lower costs, and more sustainable sourcing. Here we review carbon and energy sources that may serve as alternatives to sucrose in the cultivation of plant cell cultures.

Virtual work conditions impact negative work behaviors via ambiguity, anonymity, and (un)accountability: An integrative review.

Negative work behavior (NWB) occurs with concerning frequency in virtual work environments. Despite their prevalence and a substantial, multidisciplinary research literature on virtual negative behaviors in general, we lack clear answers regarding if, how, and why conditions differentiating virtual (i.e.

Loss of relationship: a qualitative study of families and healthcare providers after patient death and home-based palliative care ends.

Background: Home-based palliative care is care of the patient in their home, while doctors and other healthcare providers (HCPs) make visits as required. Family involvement naturally cultivates a relationship between HCPs and the family. Once the patient dies and home-based palliative care ends, this relationship is abruptly terminated, which may be challenging to both the family and the HCPs.

Evolving Alignment in International Continuing Professional Development Accreditation.

Several of the world's accreditation systems for continuing professional development (CPD) are evolving to encourage continuous improvement in the competence and performance of health care providers and in the organizations in which they provide patient care. Clinicians learn best when they can to choose from a diverse array of activities and formats that are relevant and meet their needs. Since choice and diversity are key to meeting clinicians' needs, several CPD accreditors have been engaging in deliberate, concerted efforts to identify a core set of principles that can serve as the basis for determining substantive equivalency between CPD accreditation systems.

Are nonphysician health care providers prepared and supported to teach in family medicine?

Background And Objectives: Understanding how nonphysician health care providers (NPHCPs) teach medical trainees is integral to optimizing family medicine education. The objective of this study was to examine the teaching roles, level of preparation and support, and the challenges encountered by NPHCPs.

Methods: A cross-sectional web-based survey of NPHCPs was conducted across academic teaching units affiliated with the University of Toronto's Department of Family and Community Medicine (DFCM).

[FeFe]-hydrogenase abundance and diversity along a vertical redox gradient in Great Salt Lake, USA.

The use of [FeFe]-hydrogenase enzymes for the biotechnological production of H2 or other reduced products has been limited by their sensitivity to oxygen (O2). Here, we apply a PCR-directed approach to determine the distribution, abundance, and diversity of hydA gene fragments along co-varying salinity and O2 gradients in a vertical water column of Great Salt Lake (GSL), UT. The distribution of hydA was constrained to water column transects that had high salt and relatively low O2 concentrations.

Guideline harmonization and implementation plan for the BETTER trial: Building on Existing Tools to Improve Chronic Disease Prevention and Screening in Family Practice.

Background: The aim of the Building on Existing Tools to Improve Chronic Disease Prevention and Screening in Family Practice (BETTER) randomized controlled trial is to improve the primary prevention of and screening for multiple conditions (diabetes, cardiovascular disease, cancer) and some of the associated lifestyle factors (tobacco use, alcohol overuse, poor nutrition, physical inactivity). In this article, we describe how we harmonized the evidence-based clinical practice guideline recommendations and patient tools to determine the content for the BETTER trial.

Methods: We identified clinical practice guidelines and tools through a structured literature search; we included both indexed and grey literature.

Contrasting patterns of community assembly in the stratified water column of Great Salt Lake, Utah.

Phylogenetic examinations of communities sampled along geochemical gradients provide a framework for inferring the relative importance of niche-based ecological interactions (competition, environmental filtering) and neutral-based evolutionary interactions in structuring biodiversity. Great Salt Lake (GSL) in Utah exhibits strong spatial gradients due to both seasonal variation in freshwater input into the watershed and restricted fluid flow within North America's largest saline terminal lake ecosystem. Here, we examine the phylogenetic structure and composition of archaeal, bacterial, and eukaryal small subunit (SSU) rRNA genes sampled along a stratified water column (DWR3) in the south arm of GSL in order to infer the underlying mechanism of community assembly.

Cyanophora paradoxa genome elucidates origin of photosynthesis in algae and plants.

The primary endosymbiotic origin of the plastid in eukaryotes more than 1 billion years ago led to the evolution of algae and plants. We analyzed draft genome and transcriptome data from the basally diverging alga Cyanophora paradoxa and provide evidence for a single origin of the primary plastid in the eukaryote supergroup Plantae. C.

Genetic disruption of both Chlamydomonas reinhardtii [FeFe]-hydrogenases: Insight into the role of HYDA2 in H₂ production.

Chlamydomonas reinhardtii (Chlamydomonas throughout) encodes two [FeFe]-hydrogenases, designated HYDA1 and HYDA2. While HYDA1 is considered the dominant hydrogenase, the role of HYDA2 is unclear. To study the individual functions of each hydrogenase and provide a platform for future bioengineering, we isolated the Chlamydomonas hydA1-1, hydA2-1 single mutants and the hydA1-1 hydA2-1 double mutant.

Insights into [FeFe]-hydrogenase structure, mechanism, and maturation.

Hydrogenases are metalloenzymes that are key to energy metabolism in a variety of microbial communities. Divided into three classes based on their metal content, the [Fe]-, [FeFe]-, and [NiFe]-hydrogenases are evolutionarily unrelated but share similar nonprotein ligand assemblies at their active site metal centers that are not observed elsewhere in biology. These nonprotein ligands are critical in tuning enzyme reactivity, and their synthesis and incorporation into the active site clusters require a number of specific maturation enzymes.

Evolutionary significance of an algal gene encoding an [FeFe]-hydrogenase with F-domain homology and hydrogenase activity in Chlorella variabilis NC64A.

[FeFe]-hydrogenases (HYDA) link the production of molecular H(2) to anaerobic metabolism in many green algae. Similar to Chlamydomonas reinhardtii, Chlorella variabilis NC64A (Trebouxiophyceae, Chlorophyta) exhibits [FeFe]-hydrogenase (HYDA) activity during anoxia. In contrast to C.

Interprofessional collaboration in family health teams: An Ontario-based study.

Objective: To examine family health team (FHT) members' perspectives and experiences of interprofessional collaboration and perceived benefits.

Design: Qualitative case study using semistructured interviews.

Setting: Fourteen FHTs in urban and rural Ontario.

Interprofessional primary care protocols: a strategy to promote an evidence-based approach to teamwork and the delivery of care.

Primary care reform involving interprofessional team-based care is a global phenomenon. In Ontario, Canada, 150 Family Health Teams (FHTs) have been approved in the past few years. The transition to a FHT is complex involving many changes and the processes for collaborative teamwork are not clearly delineated.

Game-based versus traditional case-based learning: comparing effectiveness in stroke continuing medical education.

Objective: To evaluate family physicians' enjoyment of and knowledge gained from game-based learning, compared with traditional case-based learning, in a continuing medical education (CME) event on stroke prevention and management.

Design: An equivalence trial to determine if game-based learning was as effective as case-based learning in terms of attained knowledge levels. Game questions and small group cases were developed.

Increased lipid accumulation in the Chlamydomonas reinhardtii sta7-10 starchless isoamylase mutant and increased carbohydrate synthesis in complemented strains.

The accumulation of bioenergy carriers was assessed in two starchless mutants of Chlamydomonas reinhardtii (the sta6 [ADP-glucose pyrophosphorylase] and sta7-10 [isoamylase] mutants), a control strain (CC124), and two complemented strains of the sta7-10 mutant. The results indicate that the genetic blockage of starch synthesis in the sta6 and sta7-10 mutants increases the accumulation of lipids on a cellular basis during nitrogen deprivation relative to that in the CC124 control as determined by conversion to fatty acid methyl esters. However, this increased level of lipid accumulation is energetically insufficient to completely offset the loss of cellular starch that is synthesized by CC124 during nitrogen deprivation.

Phenotypic diversity of hydrogen production in chlorophycean algae reflects distinct anaerobic metabolisms.

Several species of green algae use [FeFe]-hydrogenases to oxidize and/or produce H(2) during anoxia. To further define unique aspects of algal hydrogenase activity, the well-studied anaerobic metabolisms of Chlamydomonas reinhardtii were compared with four strains of Chlamydomonas moewusii and a Lobochlamys culleus strain. In vivo and in vitro hydrogenase activity, starch accumulation/degradation, and anaerobic end product secretion were analyzed.

Arabidopsis LEAFY COTYLEDON2 induces maturation traits and auxin activity: Implications for somatic embryogenesis.

LEAFY COTYLEDON2 (LEC2) is a central regulator of embryogenesis sufficient to induce somatic cells to form embryos when expressed ectopically. Here, we analyze the cellular processes induced by LEC2, a B3 domain transcription factor, that may underlie its ability to promote somatic embryogenesis. We show auxin-responsive genes are induced after LEC2 activation in seedlings.

Application of gene-shuffling for the rapid generation of novel [FeFe]-hydrogenase libraries.

A gene-shuffling technique was identified, optimized and used to generate diverse libraries of recombinant [FeFe]-hydrogenases. Six native [FeFe]-hydrogenase genes from species of Clostridia were first cloned and separately expressed in Escherichia coli concomitantly with the assembly proteins required for [FeFe]-hydrogenase maturation. All enzymes, with the exception of C.