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Microtubule-based perception of mechanical conflicts controls plant organ morphogenesis (Sci. Adv.)
Plant Science Research WeeklyMorphogenesis is a critical process in plants and animals that allows a cell, tissue, or organism to reach its final shape. In Arabidopsis thaliana, the formation of lateral root primordia (LRP) is an excellent example of organ morphogenesis that involves cell remodeling throughout differential growth…
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Membrane pointillism: Lipid nano-patterning controls distinct molecular pathways at the plasma membrane of pollen tubes
The Plant Cell: In a NutshellFratini et al. explore lipid patterns in the plasma membrane of the pollen tube. http://bit.ly/3uwYqsM
Ingo Heilmann and Marta Fratini
Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology
Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
Background:…
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Review: The mechanical feedback theory of leaf lamina formation ($) (Trends Plant Sci.)
Plant Science Research WeeklyThe contribution of microtubule orientation to the direction of cell expansion is familiar to most; when microtubules wrap around the middle of a cell like a belt, the cell expands in the perpendicular direction to become longer. Recent studies have extended this idea and proposed that the mechanical…
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Barley RIPb opens the gates for epidermal fungal penetration
Blog, Plant Physiology, Plant Physiology: News and Views, ResearchElisa Dell’Aglio
Institut National des Sciences Appliquées de Lyon
Lyon,
France
[email protected]
The ascomycete Blumeria graminis f. sp. hordei (Bgh) is a powdery mildew causal agent, specifically adapted to barley (Hordeum vulgare), wheat (Triticum aestivum, Triticum turgidum)…
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Opposing, polarity-driven nuclear migrations underpin asymmetric divisions in stomatal patterning (Curr. Biol.)
Plant Science Research WeeklyAsymmetric cell divisions (ACDs) are often used by organisms to generate different cell sizes, each adopting a different cell fate. In plants, stomatal development provides an example of an ACD-derived patterning mechanism. Several proteins are known to be implicated in ACDs, like BREAKING OF ASYMMETRY…
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Follow that Protein: SNAP-tagging Permits High-resolution Protein Localization
Blog, Research, The Plant Cell, The Plant Cell: In BriefProtein analysis relies heavily on the production of ‘tagged’ proteins, i.e. recombinant proteins that contain both a functional peptide sequence and a peptide or chemical label (the ‘tag’). Common tags include fluorescent proteins (FPs), which make tagged proteins easier to detect, as well as…
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Roles for this ROP GTPase in subcellular and tissue-level patterning (Plant Cell)
Plant Science Research WeeklyRho-of-plants (ROP) proteins are master regulators of cell polarity within plants and influence cell wall deposition, tissue development, and several signaling processes. However, they are quite difficult to study: attempts to form a fluorescent ROP fusion protein have proven elusive, and there are multiple…
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Chemical labeling of proteins in live plant cells
Blog, Research, The Plant Cell, The Plant Cell: In a NutshellIwatate et al. demonstrate that SNAP-tag technology can be used to label plant cell proteins.
Plant Cell https://doi.org/10.1105/tpc.20.00439
By Ryu J. Iwatatea,b, Akira Yoshinaria, Noriyoshi Yagia, Wolf B. Frommera,c, and Masayoshi Nakamuraa
a Institute of Transformative Bio-Molecules (WPI-ITbM),…