Bigger is Better; Modern Cannabis Trichomes are Larger and More Productive than their Landrace Ancestors.

Cannabis sativa L. (Cannabis) is a medicinal plant that produces and stores an abundance of therapeutic and psychoactive secondary metabolites, including phytocannabinoids and terpenes, in the glandular trichomes of its female flowers. We postulate that glandular trichome productivity has been under strong artificial selection in the pursuit for ever more potent cultivars.

A transcriptomic analysis of ethephon-induced sex reversion of male Cannabis sativa L. reveals changes in expression of floral homeotic genes and a distinct trichome morphology.

Cannabis sativa is a dioecious crop whose agricultural productivity is linked to its sex expression. In a medicinal context, only female flowers produce an abundance of glandular trichomes responsible for producing valuable cannabinoids. Thus, understanding sex-determining factors is vital in Cannabis sativa crop improvement for specific end uses.

An In Vitro Phytohormone Survey Reveals Concerted Regulation of the Cannabis Glandular Trichome Disc Cell Proteome.

Cannabis ( L.) flower glandular trichomes (GTs) are the main site of cannabinoid synthesis. Phytohormones, such as jasmonic acid (JA) and salicylic acid (SA), have been shown to increase cannabinoid content in cannabis flowers, but how this is regulated remains unknown.

Characterisation of Cannabis glandular trichome development reveals distinct features of cannabinoid biosynthesis.

Cannabis trichome development progresses in distinct phases that underpin the dynamic biosynthesis of cannabinoids and terpenes. This study investigates the molecular mechanisms underlying cannabinoid and terpenoid biosynthesis in glandular trichomes of Cannabis sativa (CsGTs) throughout their development. Female Cannabis sativa c.

From dawn 'til dusk: daytime progression regulates primary and secondary metabolism in Cannabis glandular trichomes.

Cannabis sativa L. glandular trichomes synthesize large amounts of secondary metabolites, predominantly cannabinoids and terpenoids. The associated demand for carbon and energy makes glandular trichomes strong sink tissues with indications that their secondary metabolism is coupled to the availability of photoassimilates.

Drought stress modulates cuticular wax composition of the grape berry.

Drought events are a major challenge for many horticultural crops, including grapes, which are often cultivated in dry and warm climates. It is not understood how the cuticle contributes to the grape berry response to water deficit (WD); furthermore, the cuticular waxes and the related biosynthetic pathways are poorly characterized in this fruit. In this study, we identified candidate wax-related genes from the grapevine genome by phylogenetic and transcriptomic analyses.

αSynuclein control of mitochondrial homeostasis in human-derived neurons is disrupted by mutations associated with Parkinson's disease.

The etiology of Parkinson's disease (PD) converges on a common pathogenic pathway of mitochondrial defects in which α-Synuclein (αSyn) is thought to play a role. However, the mechanisms by which αSyn and its disease-associated allelic variants cause mitochondrial dysfunction remain unknown. Here, we analyzed mitochondrial axonal transport and morphology in human-derived neurons overexpressing wild-type (WT) αSyn or the mutated variants A30P or A53T, which are known to have differential lipid affinities.

Human Pluripotent Stem Cells and Derived Neuroprogenitors Display Differential Degrees of Susceptibility to BH3 Mimetics ABT-263, WEHI-539 and ABT-199.

Human embryonic stem cells (hESCs) are hypersensitive to genotoxic stress and display lower survival ability relative to their differentiated progeny. Herein, we attempted to investigate the source of this difference by comparing the DNA damage responses triggered by the topoisomerase I inhibitor camptothecin, in hESCs, human induced pluripotent stem cells (hiPSCs) and hESCs-derived neuroprogenitors (NP). We observed that upon camptothecin exposure pluripotent stem cells underwent apoptosis more swiftly and at a higher rate than differentiated cells.