Contribution of host intracellular transport machineries to intercellular movement of turnip mosaic virus. [PDF]
The contribution of different host cell transport systems in the intercellular movement of turnip mosaic virus (TuMV) was investigated. To discriminate between primary infections and secondary infections associated with the virus intercellular movement ...
Maxime Agbeci +4 more
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Myosin XI Is Essential for Tip Growth inPhyscomitrella patens [PDF]
AbstractClass XI myosins are plant specific and responsible for cytoplasmic streaming. Because of the large number of myosin XI genes in angiosperms, it has been difficult to determine their precise role, particularly with respect to tip growth. The moss Physcomitrella patens provides an ideal system to study myosin XI function. P.
Vidali, L +5 more
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Association of six YFP-myosin XI-tail fusions with mobile plant cell organelles
Background Myosins are molecular motors that carry cargo on actin filaments in eukaryotic cells. Seventeen myosin genes have been identified in the nuclear genome of Arabidopsis.
Hanson Maureen R, Reisen Daniel
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Dynamics of Myosin XI: The Family Speed Demon [PDF]
Myosin XI is the fastest known processive motor, and is implicated in organelle transport and propulsion of cytoplasmic streaming in plant cells. We studied the motility and dynamics of a recombinant myosin XI motor domain hybridized with the myosin Va lever arm with 6 calmodulin-bearing IQ motifs and the dimerization motif.
Shroder, Deborah Y. +4 more
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Plant Lipid Bodies Traffic on Actin to Plasmodesmata Motorized by Myosin XIs [PDF]
Late 19th-century cytologists observed tiny oil drops in shoot parenchyma and seeds, but it was discovered only in 1972 that they were bound by a half unit-membrane. Later, it was found that lipid bodies (LBs) arise from the endoplasmic reticulum. Seeds are known to be packed with static LBs, coated with the LB-specific protein OLEOSIN.
Veerabagu, Manikandan +3 more
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Post-embryonic cells contain minute lipid bodies (LBs) that are transient, mobile, engage in organellar interactions, and target plasmodesmata (PD). While LBs can deliver γ-clade 1,3-β-glucanases to PD, the nature of other cargo is elusive.
Manikandan Veerabagu +4 more
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Myosin-Powered Membrane Compartment Drives Cytoplasmic Streaming, Cell Expansion and Plant Development. [PDF]
Using genetic approaches, particle image velocimetry and an inert tracer of cytoplasmic streaming, we have made a mechanistic connection between the motor proteins (myosins XI), cargo transported by these motors (distinct endomembrane compartment defined
Valera V Peremyslov +3 more
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Movement of Lipid Droplets in the Arabidopsis Pollen Tube Is Dependent on the Actomyosin System
The growth of pollen tubes, which depends on actin filaments, is pivotal for plant reproduction. Pharmacological experiments showed that while oryzalin and brefeldin A treatments had no significant effect on the lipid droplets (LDs) trafficking, while 2 ...
Lang Yang +3 more
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Dissecting the Functions of Class XI Myosins in Moss and Arabidopsis [PDF]
Myosin XI strides along actin tracks at rates of up to 7 μm/s, making it the fastest known processive molecular motor ([Tominaga et al., 2003][1]). Class XI myosins are unique to plants and have been implicated in plant growth, intracellular transport, and root hair elongation ([Prokhnevsky et ...
Kathleen L, Farquharson +1 more
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Myosin XI Is Required for Actin-Associated Movement of Plastid Stromules [PDF]
Stromules are highly dynamic stroma-filled tubules extending from the surface of plastids and occasionally interconnecting individual plastids, allowing the movement of complex biological molecules between the interconnected plastids. Experiments with inhibitors of cytoskeleton assembly have indicated the involvement of an actin-based system in ...
Natesan, S, Sullivan, J, Gray, J
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