Ivo Feußner

Signatures for conserved phenolic-based acclimation responses to UV in a unicellular algal sister of land plants

The paper exposes zygnematophyte algae to UV irradiance and identifies conserved molecular responses, including lipid droplets and phenolic compounds, suggesting a shared UV acclimation mechanism with land plants.

Glycosylceramide assembly and function in a model bryophyte

This study investigates glycosylceramide assembly and function in the moss Physcomitrium patens by generating and analyzing mutants with defects in sphingolipid desaturation and glycosylceramide synthesis.

The Spirogyra genome: signatures of shared and divergent division and differentiation

This study sequenced the Spirogyra pratensis genome and analyzed its transcriptional responses to light and temperature, revealing unique cytokinetic processes and plastid division mechanisms.

Old Yellow Enzyme from Brevibacillus nitrificans functions as 12-oxo-phytodienoic acid reductase in planta

The paper identifies BnOPR from Brevibacillus nitrificans as a functional OPDA reductase that rescues the male infertile phenotype in Arabidopsis thaliana.

Homologous ABA-independent kinase tracks coalesced into osmotic stress circuits during plant terrestrialization

The paper investigates the evolution of osmotic stress response pathways in plants by studying zygnematophytes and their homologous ABA-independent kinase systems.

Chemodiverse cell systems responses to UV in an algal sister of land plants

This study investigates UV-B responses in the algal relative of land plants Mesotaenium, revealing dynamic transcriptomic and metabolomic changes and a chemodiverse response toolkit.

Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis

The paper quantifies octadecanoid oxylipins in a cnidarian-dinoflagellate symbiosis and identifies specific lipid mediators associated with symbiont identity and host response.

Complex sphingolipids are essential for cell division and plasmodesmal development in the moss Physcomitrium patens

This study identifies the role of complex sphingolipids in cell division and plasmodesmal development in the moss Physcomitrium patens through mutant analysis.

Discovery of tomato UDP-glucosyltransferases involved in bioactive jasmonate homeostasis using limited proteolysis-coupled mass spectrometry

The paper identifies tomato UDP-glucosyltransferases that glucosylate jasmonic acid, revealing a new step in JA homeostasis regulation.

Setaphyte VERY-LONG-CHAIN FATTY ACYL DESATURASES are desaturases that impact glycerolipid and sphingolipid metabolism

The paper characterizes SFDs in setaphytes, showing they desaturate VLCFAs in sphingolipids and glycerolipids, likely via acyl-CoA substrates, and suggests renaming them VFADs.

Transcriptomics and trans-organellar complementation reveal a limited signaling capacity of 12-cis-oxo-phytodienoic acid in wounded Arabidopsis

The paper investigates OPDA signaling in Arabidopsis by comparing transcriptomes of mutants and applying OPDA externally, finding limited signaling capacity and compartmentalization of endogenous OPDA.

Wax ester synthase overexpression affects stomatal development, water consumption and growth of poplars

This study overexpresses wax ester synthase in poplars to improve cuticular properties, resulting in reduced stomatal conductance, increased water-use efficiency, and a growth trade-off after prolonged drought.

Identification of INOSITOL PHOSPHORYLCERAMIDE SYNTHASE 2 (IPCS2) as a new rate-limiting component in Arabidopsis pathogen entry control

This study identifies IPCS2 as a key enzyme in sphingolipid biosynthesis that regulates polar secretion of PEN3 to block fungal entry in Arabidopsis.

Time-resolved oxidative signal convergence across the algae-embryophyte divide

The paper studies stress response kinetics in early land plants and their algal relatives using multi-omics data to infer ancient gene regulatory networks.

Coenzyme A biosynthesis in Bacillus subtilis: Discovery of a novel precursor metabolite for salvage and its uptake system

This study identifies a novel salvage pathway for coenzyme A in Bacillus subtilis, involving the uptake of cysteinopantetheine via a cystine transporter.

Plasticity of the Arabidopsis leaf lipidome and proteome in response to pathogen infection and heat stress

Biotic and heat stress strongly alter the lipidome and proteome of Arabidopsis leaves, including lipid droplet proteome composition.

The GPAT4/6/8 clade functions in Arabidopsis root suberization non-redundantly with the GPAT5/7 clade required for suberin lamellae

This paper shows that GPAT4/6/8 and GPAT5/7 clades in Arabidopsis have non-redundant roles in root suberization, with GPAT5/7 specifically required for lamellated suberin structure.

RfaA (YqhY), a novel adaptor protein, controls metabolite-sensitive protein degradation in Bacillus subtilis

This paper identifies RfaA as a regulator of fatty acid synthesis in Bacillus subtilis that targets AccC for degradation in the absence of glutamate, preventing fatty acid toxicity.

Dual action of sphinganine in the plant disease resistance to bacteria.

This study shows that sphinganine suppresses the hypersensitive response in Arabidopsis by disrupting plasma membrane organization and effector function during bacterial infection.

V. longisporum elicits media-dependent secretome responses with a further capacity to distinguish between plant-related environments

This study identifies media-dependent secretome responses in Verticillium longisporum, revealing specific exoproteome patterns in plant-related environments and identifying Nlp2 and Nlp3 as key effectors for plant infection.

Pheophorbide a, a chlorophyll catabolite may regulate jasmonate signalling during dark-induced senescence in Arabidopsis

The paper shows pheophorbide a regulates jasmonate signaling during dark-induced senescence in Arabidopsis by linking chlorophyll degradation to jasmonic acid pathways.