Staffan Persson
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The formin protein RMD regulates rice stomatal opening by modulating tonoplast-endoplasmic reticulum associations Open
The stoma is key to plant growth and development, with highly controlled functions. However, the regulatory mechanisms of stomata remain largely unknown in monocot crop species. In this study, we reveal that guard cell physiology is regula…
View article: The transcription factor ANAC017 links mitochondrial retrograde signaling with the ubiquitin–proteasome system to control mitochondrial function in Arabidopsis
The transcription factor ANAC017 links mitochondrial retrograde signaling with the ubiquitin–proteasome system to control mitochondrial function in Arabidopsis Open
Mitochondrial biogenesis requires the import of more than a thousand proteins encoded by nuclear DNA. The translocase of the outer mitochondrial membrane (TOM) complex serves as the primary gateway to specifically recognise precursor prote…
View article: Ethylene modulates cell wall mechanics for root responses to compaction
Ethylene modulates cell wall mechanics for root responses to compaction Open
Soil stresses affect crop yields and present global agricultural challenges 1 . Soil compaction triggers reduction in root length and radial expansion driven by the plant hormone ethylene 2 . Here we report how ethylene controls cell wall …
<i>Arabidopsis</i> phospholipid modifications mediate cellulase‐induced resistance to a fungal peptide antibiotic by imposing cell polarity Open
Summary Plant‐symbiotic Trichoderma fungi attack microorganisms by secreting antibiotic membrane‐permeabilising peptaibols such as alamethicin. These peptaibols also permeabilise plant root epidermis plasma membranes (PMs), but mild pretre…
View article: Rho <scp>GTPase</scp> overexpression impacts leaf internal architecture and mesophyll conductance in Arabidopsis
Rho <span>GTPase</span> overexpression impacts leaf internal architecture and mesophyll conductance in Arabidopsis Open
Summary Leaves are built from multiple cell types and are structured to enable the conversion of carbon dioxide and water into sugars in the process of photosynthesis. Understanding how cell architecture impacts the movement of CO 2 within…
View article: Auxin controls rice root angle via kinase OsILA1-mediated cell wall modifications
Auxin controls rice root angle via kinase OsILA1-mediated cell wall modifications Open
Auxin-mediated root gravitropism critically determines root angle, a key trait that underpins root system architecture (RSA). Auxin response factors (ARFs) regulate this process, but their downstream targets and functions remain unclear. W…
A regulatory module tunes OsYABBY4 expression to modify vascular bundle development and tillering in rice Open
The arrangement of vascular tissue in monocots is characterized by an array of scattered bundles, which determines rice architecture and grain yield. To enhance cereal productivity, it is therefore crucial to outline the genetic mechanisms…
Cell wall‐related glycosyltransferases and wall architecture in the model liverwort <i>Marchantia polymorpha</i> Open
SUMMARY The liverwort Marchantia polymorpha has emerged as an important plant model for developmental studies and may become central to elucidate the complex process of cell wall polysaccharide biosynthesis. This study comprehensively anal…
Modulation of the GT Family 47 clade B gene affects arabinan deposition in elaters of<i>Marchantia polymorpha</i> Open
The plant cell wall polymer α-1,5-linked arabinan is associated with important functions in plant physiology, such as cell wall flexibility and desiccation tolerance in angiosperms. However, its biosynthetic mechanism remains obscure. A pu…
View article: The Building Blocks of Early Land Plants: Glycosyltransferases and Cell Wall Architecture in the model liverwort <i>Marchantia polymorpha</i>
The Building Blocks of Early Land Plants: Glycosyltransferases and Cell Wall Architecture in the model liverwort <i>Marchantia polymorpha</i> Open
Summary The liverwort Marchantia polymorpha has emerged as an important plant model for developmental studies and may become central to elucidate the complex process of cell wall polysaccharide biosynthesis. This study comprehensively anal…
View article: Pupylation‐Based Proximity Labeling Unravels a Comprehensive Protein and Phosphoprotein Interactome of the Arabidopsis TOR Complex
Pupylation‐Based Proximity Labeling Unravels a Comprehensive Protein and Phosphoprotein Interactome of the Arabidopsis TOR Complex Open
Target of rapamycin (TOR) is a signaling hub that integrates developmental, hormonal, and environmental signals to optimize carbon allocation and plant growth. In plant cells, TOR acts together with the proteins LST8‐1 and RAPTOR1 to form …
View article: Ethylene modulates cell wall mechanics for root responses to compaction
Ethylene modulates cell wall mechanics for root responses to compaction Open
Soil stresses impact crop yields, presenting global agricultural challenges. Soil compaction triggers root length reduction and radial expansion driven by the plant hormone ethylene. We report how ethylene controls cell wall properties to …
View article: Resolving spatially distinct phytohormone response zones in <i>Arabidopsis thaliana</i> roots colonized by <i>Fusarium oxysporum</i>
Resolving spatially distinct phytohormone response zones in <i>Arabidopsis thaliana</i> roots colonized by <i>Fusarium oxysporum</i> Open
Jasmonic acid (JA), ethylene (ET), and salicylic acid (SA) are the three major phytohormones coordinating plant defense responses, and all three are implicated in the defense against the fungal pathogen Fusarium oxysporum. However, their d…
View article: FERONIA adjusts CC1 phosphorylation to control microtubule array behavior in response to salt stress
FERONIA adjusts CC1 phosphorylation to control microtubule array behavior in response to salt stress Open
Cell wall remodeling is important for plants to adapt to environmental stress. Under salt stress, cortical microtubules undergo a depolymerization-reassembly process to promote the biosynthesis of stress-adaptive cellulose, but the regulat…
View article: IQD2 recruits KLCR1 to the membrane-microtubule nexus to promote cytoskeletal mechano-responsiveness in leaf epidermis pavement cells
IQD2 recruits KLCR1 to the membrane-microtubule nexus to promote cytoskeletal mechano-responsiveness in leaf epidermis pavement cells Open
Summary Plant cells experience a variety of mechanical stresses from both internal and external sources, including turgor pressure, mechanical strains arising from heterogeneous growth between neighboring cells, and environmental factors l…
RMD and Its Suppressor MAPK6 Control Root Circumnutation and Obstacle Avoidance via BR Signaling Open
Helical growth of the root tip (circumnutation) that permits surface exploration facilitates root penetration into soil. Here, we reveal that rice actin-binding protein RMD aids in root circumnutation, manifested by wavy roots as well as c…
Pupylation-based proximity labelling reveals regulatory factors in cellulose biosynthesis in Arabidopsis Open
Knowledge about how and where proteins interact provides a pillar for cell biology. Protein proximity-labelling has emerged as an important tool to detect protein interactions. Here, biotin-related proximity labelling approaches are by far…
Colocalising proteins and polysaccharides in plants for cell wall and trafficking studies Open
Plant cell walls (PCWs) are intricate structures with complex polysaccharides delivered by distinct trafficking routes. Unravelling the intricate trafficking pathways of polysaccharides and proteins involved in PCW biosynthesis is a crucia…
The <i>fnr‐like</i> mutants confer isoxaben tolerance by initiating mitochondrial retrograde signalling Open
Summary Isoxaben is a pre‐emergent herbicide used to control broadleaf weeds. While the phytotoxic mechanism is not completely understood, isoxaben interferes with cellulose synthesis. Certain mutations in cellulose synthase complex protei…
NKS1/ELMO4 is an integral protein of a pectin synthesis protein complex and maintains Golgi morphology and cell adhesion in <i>Arabidopsis</i> Open
Adjacent plant cells are connected by specialized cell wall regions, called middle lamellae, which influence critical agricultural characteristics, including fruit ripening and organ abscission. Middle lamellae are enriched in pectin polys…
Tip Growth Defective1 interacts with the cellulose synthase complex to regulate cellulose synthesis in Arabidopsis thaliana Open
Plant cells possess robust and flexible cell walls composed primarily of cellulose, a polysaccharide that provides structural support and enables cell expansion. Cellulose is synthesised by the Cellulose Synthase A (CESA) catalytic subunit…
A Robust Network-based Spatiotemporal Analysis of Filamentous Structures Open
The actin cytoskeleton forms a dynamic network composed of filaments that remain flexible when bundled up, leading to complex filamentous structures in plant cells. Understanding the properties of these filamentous structures under differe…
The<i>fnr-like</i>mutants enhance isoxaben tolerance by initiating mitochondrial retrograde signalling Open
Isoxaben is a pre-emergent herbicide used to control broadleaf weeds. While the phytotoxic mechanism is not completely understood, isoxaben interferes with cellulose synthesis. Certain mutations in cellulose synthase complex proteins can c…
Implementation of pupylation-based proximity labelling in plant biology reveals regulatory factors in cellulose biosynthesis Open
Knowledge about how and where proteins interact provides a pillar for cell biology. Biotin-related proximity labelling approaches are efficiently monitoring protein interactions but may have labelling-related drawbacks. Here, we introduce …
Cellulose synthesis in land plants Open
(Molecular Plant 16, 206–231; January 2 2023) After the original publication of the above article, we and/or attentive readers identified several instances of unclear or erroneous writing that needed correcting, as follows. Italics are add…