Search results for: Farid El Kasmi

Items from 1 to 11 out of 11 results

article

The emerging frontier of plant immunity's core hubs

Michail Iakovidis, Eui‐Hwan Chung, Svenja C. Saile, Elke Sauberzweig, more

The FEBS Journal > 290 > 13 > 3311 - 3335

The ever‐growing world population, increasingly frequent extreme weather events and conditions, emergence of novel devastating crop pathogens and the social strive for quality food products represent a huge challenge for current and future agricultural production systems. To address these challenges and find realistic solutions, it is becoming more important by the day to understand the complex interactions...

article

Arabidopsis ADR1 helper NLR immune receptors localize and function at the plasma membrane in a phospholipid dependent manner

Svenja C. Saile, Frank M. Ackermann, Sruthi Sunil, Jutta Keicher, more

New Phytologist > 232 > 6 > 2440 - 2456

Activation of nucleotide‐binding leucine‐rich repeat receptors (NLRs) results in immunity and a localized cell death. NLR cell death activity requires oligomerization and in some cases plasma membrane (PM) localization. The exact mechanisms underlying PM localization of NLRs lacking predicted transmembrane domains or recognizable lipidation motifs remain elusive. We used confocal microscopy, genetically...

article

Microbial effectors and the role of water and sugar in the infection battle ground

Farid El Kasmi, Diana Horvath, Thomas Lahaye

Current Opinion in Plant Biology > 2018 > 44 > C > 98-107

Phytopathogenic microbes multiply in the apoplast—a plant's intercellular spaces—of infected plants, and hence their success relies on the conditions in this habitat. Despite being extracellular parasites, most microbes translocate effectors into host cells that promote disease by acting inside cells. Initial studies suggested that effectors act predominantly as suppressors of plant immunity. These...

article

Concerted Action of Evolutionarily Ancient and Novel SNARE Complexes in Flowering-Plant Cytokinesis

Misoon Park, Cornelia Krause, Matthias Karnahl, Ilka Reichardt, more

Developmental Cell > 2018 > 44 > 4 > 500-511.e4

Membrane vesicles delivered to the cell-division plane fuse with one another to form the partitioning membrane during plant cytokinesis, starting in the cell center. In Arabidopsis, this requires SNARE complexes involving the cytokinesis-specific Qa-SNARE KNOLLE. However, cytokinesis still occurs in knolle mutant embryos, suggesting contributions from KNOLLE-independent SNARE complexes. Here we show...

article

Evolutionarily diverse SYP1 Qa‐SNAREs jointly sustain pollen tube growth in Arabidopsis

Daniel Slane, Ilka Reichardt, Farid El Kasmi, Martin Bayer, more

The Plant Journal > 92 > 3 > 375 - 385

Intracellular membrane fusion is effected by SNARE proteins that reside on adjacent membranes and form bridging trans‐SNARE complexes. Qa‐SNARE members of the Arabidopsis SYP1 family are involved in membrane fusion at the plasma membrane or during cell plate formation. Three SYP1 family members have been classified as pollen‐specific as inferred from gene expression profiling studies, and two of them,...

article

TNL‐mediated immunity in Arabidopsis requires complex regulation of the redundant ADR1 gene family

Oliver Xiaoou Dong, Meixuezi Tong, Vera Bonardi, Farid El Kasmi, more

New Phytologist > 210 > 3 > 960 - 973

Nucleotide‐binding leucine‐rich repeat proteins (NLRs) serve as intracellular immune receptors in animals and plants. Sensor NLRs perceive pathogen‐derived effector molecules and trigger robust host defense. Recent studies revealed the role of three coiled‐coil‐type NLRs (CNLs) of the ADR1 family – ADR1, ADR1‐L1 and ADR1‐L2 – as redundant helper NLRs, whose function is required for defense mediated...

article

A Plant Phosphoswitch Platform Repeatedly Targeted by Type III Effector Proteins Regulates the Output of Both Tiers of Plant Immune Receptors

Eui-Hwan Chung, Farid El-Kasmi, Yijian He, Alex Loehr, more

Cell Host & Microbe > 2014 > 16 > 4 > 484-494

Plants detect microbes via two functionally interconnected tiers of immune receptors. Immune detection is suppressed by equally complex pathogen mechanisms. The small plasma-membrane-tethered protein RIN4 negatively regulates microbe-associated molecular pattern (MAMP)-triggered responses, which are derepressed upon bacterial flagellin perception. We demonstrate that recognition of the flagellin peptide...

article

Mechanisms of Functional Specificity Among Plasma‐Membrane Syntaxins in Arabidopsis

Ilka Reichardt, Daniel Slane, Farid El Kasmi, Christian Knöll, more

Traffic > 12 > 9 > 1269 - 1280

Syntaxins and interacting SNARE proteins enable membrane fusion in diverse trafficking pathways. The Arabidopsis SYP1 family of plasma membrane‐localized syntaxins comprises nine members, of which KNOLLE and PEN1 play specific roles in cytokinesis and innate immunity, respectively. To identify mechanisms conferring specificity of action, we examined one member of each subfamily—KNOLLE/SYP111, PEN1/SYP121...

article

Arabidopsis SNARE protein SEC22 is essential for gametophyte development and maintenance of Golgi‐stack integrity

Farid El‐Kasmi, Tobias Pacher, Georg Strompen, York‐Dieter Stierhof, more

The Plant Journal > 66 > 2 > 268 - 279

Membrane traffic contributes to plant growth and development. However, the functional significance of SNARE proteins involved in membrane fusion of the early secretory pathway has not been explored with respect to plant development. Here we analyze the Arabidopsis v‐SNARE SEC22. Loss of SEC22 function impairs gametophyte development, as indicated by reciprocal crosses between wild‐type plants and...

article

Strategies to improve the antigenicity, ultrastructure preservation and visibility of trafficking compartments in Arabidopsis tissue

York-Dieter Stierhof, Farid El Kasmi

European Journal of Cell Biology > 2010 > 89 > 2-3 > 285-297

Immunolabelling of (ultra)thin thawed cryosections according to Tokuyasu is one of the most reliable and efficient immunolocalisation techniques for cells and tissues. However, chemical fixation at ambient temperature, a prerequisite of this technique, can cause problems for samples, like plant tissue, because cell walls, hydrophobic surfaces and intercellular air slow down diffusion of fixative molecules...

article

The Arabidopsis HINKEL Gene Encodes a Kinesin-Related Protein Involved in Cytokinesis and Is Expressed in a Cell Cycle-Dependent Manner

Georg Strompen, Farid El Kasmi, Sandra Richter, Wolfgang Lukowitz, more

Current Biology > 2002 > 12 > 2 > 153-158

Plant cytokinesis starts in the center of the division plane, with vesicle fusion generating a new membrane compartment, the cell plate, that subsequently expands laterally by continuous fusion of newly arriving vesicles to its margin [1–4]. Targeted delivery of vesicles is assisted by the dynamic reorganization of a plant-specific cytoskeletal array, the phragmoplast, from a solid cylinder into an...

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Keywords

ARABIDOPSIS (3)
MEMBRANE FUSION (3)
PLANT IMMUNITY (3)
ARABIDOPSIS THALIANA (2)
CYTOKINESIS (2)
EVOLUTION (2)
SNARE (2)
ADR (1)
ADR1 (1)
ADR1‐L1 (1)
ADR1‐L2 (1)
AGRICULTURAL APPLICATIONS (1)
CELL CYCLE (1)
CELLULARIZATION (1)
ENDOPLASMIC RETICULUM (1)
ENDOSPERM (1)
ETI (1)
FREEZE-SUBSTITUTION (1)
GAMETOPHYTE (1)
GOLGI (1)
HELO‐/RPW8‐TYPE NLRS (1)
HIGH-PRESSURE FREEZING (1)
HYPERSENSITIVE RESPONSE‐LIKE CELL DEATH (1)
IMMUNOFLUORESCENCE LABELLING (1)
IMMUNOGOLD LABELLING (1)
INNATE IMMUNITY (1)
INTRACELLULAR LOCALIZATION (1)
MEMBRANE TRAFFICKING (1)
MUSE (1)
NLRS (1)
NUCLEOTIDE‐BINDING LEUCINE‐RICH REPEAT (NLR) RECEPTOR (1)
NUCLEOTIDE‐BINDING LEUCINE‐RICH REPEAT RECEPTORS (NLRS) (1)
OLIGOMERIZATION (1)
PATHOGEN EFFECTORS (1)
PHOSPHOLIPIDS (1)
PLANT (1)
PLASMA MEMBRANE (1)
POLLEN TUBE GROWTH (1)
POLLEN‐SPECIFIC SNARES (1)
PROTEIN DYNAMICS (1)
PRRS (1)
PTI (1)
QUANTUM DOT (1)
RECYCLING (1)
SECRETION (1)
SECRETORY PATHWAY (1)
SENSOR AND HELPER NLRS (1)
SNC1 (1)
SUPPRESSION OF IMMUNITY (1)
SYNTAXIN (1)
TOKUYASU CRYOSECTION (1)
TRAFFICKING (1)
TRANS-GOLGI NETWORK (1)
VAMP727 (1)
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Data set

Wiley (6)
Elsevier (5)

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