Results 101 to 110 of about 22,403 (243)

Vestigial Plastids in Parasitic Plants: Evolutionary Remnants or Adaptive Innovations?

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Throughout the evolutionary history of plants, chloroplasts originating from a cyanobacterial endosymbiosis have undergone remarkable adaptation and specialization, giving rise to a multitude of plastid types. The evolution toward parasitism in plants represents a particularly extreme case of such specialization.
Laia Jené, Sergi Munné‐Bosch
wiley   +1 more source

Biological Activities of Essential Oils: From Plant Chemoecology to Traditional Healing Systems

open access: yesMolecules, 2017
Essential oils are complex mixtures of hydrocarbons and their oxygenated derivatives arising from two different isoprenoid pathways. Essential oils are produced by glandular trichomes and other secretory structures, specialized secretory tissues mainly ...
Javad Sharifi-Rad   +12 more
doaj   +1 more source

Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures

open access: yes, 2018
We propose that retinal-based phototrophy arose early in the evolution of life on Earth, profoundly impacting the development of photosynthesis and creating implications for the search for life beyond our planet.
DasSarma, Shiladitya   +1 more
core   +1 more source

Arbuscular mycorrhizal fungal (AMF) communities in sand bars associated with Ipomoea pes‐caprae: a promising strategy for petroleum spill bioremediation in coastal dunes

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Polycyclic aromatic hydrocarbons (PAHs), a class of petroleum‐derived compounds known for causing cellular damage and for their recalcitrant behavior, severely limit effective biodegradation. Arbuscular mycorrhizal fungi (AMF) from oil‐contaminated environments can mitigate PAH‐related stress on host plants, highlighting the ...
Ocimar F. de Andrade   +7 more
wiley   +1 more source

Demonstration of an oligosaccharide-diphosphodolichol diphosphatase activity whose subcellular localization is different than those of dolichyl-phosphate-dependent enzymes of the dolichol cycle

open access: yesJournal of Lipid Research, 2016
Oligosaccharyl phosphates (OSPs) are hydrolyzed from oligosaccharide-diphosphodolichol (DLO) during protein N-glycosylation by an uncharacterized process.
Ahmad Massarweh   +8 more
doaj   +1 more source

Fosmidomycin for the Treatment of Canine Otitis Externa: A Randomised, Double‐Blinded, Controlled ‘Split Body’ Clinical Trial

open access: yesVeterinary Dermatology, EarlyView.
ABSTRACT Background Targeted antimicrobial therapy for canine otitis externa (OE) represents an opportunity for antimicrobial stewardship. Fosmidomycin selectively inhibits the non‐mevalonate pathway for isoprenoid biosynthesis utilised by canine‐adapted, and not human‐adapted, staphylococci.
Lindsey E. Citron   +6 more
wiley   +1 more source

Biosynthesis of archaeal membrane ether lipids

open access: yesFrontiers in Microbiology, 2014
A vital function of the cell membrane in all living organism is to maintain the membrane permeability barrier and fluidity. The composition of the phospholipid bilayer is distinct in archaea when compared to bacteria and eukarya.
Samta eJain   +3 more
doaj   +1 more source

Umbelliprenin in Food and Medicinal Plants: Phytochemical Occurrence, Biosynthesis, Analytical Approaches, and Biological Activities

open access: yesPhytochemicals in Food and Medicine, Volume 1, Issue 2, June 2026.
This review provides an extensive and critical synthesis of current knowledge on umbelliprenin, integrating phytochemical, analytical, biological, ecological, and food science perspectives, and identifies priorities for future research. ABSTRACT Umbelliprenin (7‐farnesyloxycoumarin) is an oxyprenylated coumarin that has gained increasing attention in ...
Chiara Collevecchio   +4 more
wiley   +1 more source

Aβ inhibits SREBP-2 activation through Akt inhibition

open access: yesJournal of Lipid Research, 2018
We previously demonstrated that oligomeric amyloid β42 (oAβ42) inhibits the mevalonate pathway impairing cholesterol synthesis and protein prenylation. Enzymes of the mevalonate pathway are regulated by the transcription factor SREBP-2.
Amany Mohamed   +3 more
doaj   +1 more source

Phylogenetic history shapes the composition of floral scents in a specialized pollination mutualism

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3428-3443, June 2026.
Summary Most studies of the chemical ecology of plant–pollinator interactions emphasize the role of pollinator‐mediated selection in shaping floral scent composition. Nevertheless, phylogeny may constrain the metabolic pathways underlying these profiles, thereby influencing the evolutionary trajectory of the emitted signals.
Li Cao   +8 more
wiley   +1 more source

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