Results 151 to 160 of about 39,295 (245)

Inhibition of jasmonic acid‐isoleucine conjugating enzyme JAR1 shifts the local and systemic leaf signals and metabolic profiles in Arabidopsis

open access: yesNew Phytologist, Volume 251, Issue 1, Page 424-437, July 2026.
Summary Jasmonates (JAs)‐mediated pathways are central signaling hubs in plant defense responses. However, the identification of mobile and nonmobile signals involved in downstream systemic signaling is still less studied. Here, we investigate the role of the jasmonic acid‐isoleucine (JA‐Ile) conjugating enzyme, JAR1, in shifting wound‐induced local ...
Ming Zeng, Axel Mithöfer
wiley   +1 more source

DISSECTING COMPLEX POLYKETIDE BIOSYNTHESIS

open access: yesComputational and Structural Biotechnology Journal, 2012
Numerous bioactive natural products are synthesised by modular polyketide synthases. These compounds can be made in high yield by native multienzyme assembly lines. However, formation of analogues by genetically engineered systems is often considerably less efficient.
openaire   +4 more sources

Rubellin D Production, Symptom Development and Fungal Biomass Accumulation of Three Different Ramularia collo‐cygni Strains in Two Barley Cultivars

open access: yesPlant Pathology, Volume 75, Issue 4, July‐August 2026.
Three Ramularia collo‐cygni strains, differing in rubellin D production, varied in virulence on two barley cultivars, with symptom development correlating with rubellin D biosynthesis in the most susceptible cultivar. The role of this phytotoxin in fungal aggressivity and possible involvement of other secondary metabolites is discussed.
Emilio Balducci   +7 more
wiley   +1 more source

Synthesis of 2‐Aza‐Bicyclo[4.3.0]nonane Derivatives Related to the Camporidines via Intramolecular [3+2]‐Cycloaddition

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher   +5 more
wiley   +1 more source

A General Strategy for the Synthesis of Jerangolids Enabled by π‐allyl Stille Coupling

open access: yesChemistry – A European Journal, Volume 32, Issue 23, 16 June 2026.
A general strategy for the synthesis of jerangolids is established, featuring a late‐stage π‐allyl Stille coupling of two advanced, highly customizable building blocks to form the skipped diene core. The approach provides access to all naturally occurring jerangolids, including jerangolid H, whose configuration is confirmed by NMR analysis.
Janick Schug   +2 more
wiley   +1 more source

Synthesis and Biosynthesis of Polyketide Natural Products [PDF]

open access: yes, 2011
Traditionally separate disciplines of a large and broad chemical spectrum, synthetic organic chemistry and biochemistry have found in the last two decades a fertile common ground in the area pertaining to the biosynthesis of natural products.
Pinto, Atahualpa
core   +1 more source

Rational Design of Polyketide Natural Products [PDF]

open access: yes, 2005
Compounds of polyketide origin possess a wealth of pharmacological effects, including antibacterial, antifungal, antiparasitic, anticancer and immunosuppressive activities.
Kuščer, Enej   +5 more
core   +1 more source

Investigating the versatility of cytochalasan cytochrome P450 monooxygenases using combinatorial biosynthesis reveals stereochemical restrictions. [PDF]

open access: yesFungal Biol Biotechnol
Li L   +7 more
europepmc   +1 more source

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