Results 31 to 40 of about 29,584 (174)

Plant Lipid Bodies Traffic on Actin to Plasmodesmata Motorized by Myosin XIs [PDF]

International Journal of Molecular Sciences, 2020
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, Kakkassery, Laju Paul, Rinne, Paivi L.H., van der Schoot, Christiaan   +3 more
openaire   +3 more sources

Role of turn-over in active stress generation in a filament network [PDF]

, 2016
We study the effect of turnover of cross linkers, motors and filaments on the generation of a contractile stress in a network of filaments connected by passive crosslinkers and subjected to the forces exerted by molecular motors.
Hiraiwa, Tetsuya, Salbreux, Guillaume
core   +3 more sources

Lipid Body Dynamics in Shoot Meristems: Production, Enlargement, and Putative Organellar Interactions and Plasmodesmal Targeting

Frontiers in Plant Science, 2021
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, Päivi L. H. Rinne, Morten Skaugen, Laju K. Paul, Christiaan van der Schoot   +4 more
doaj   +1 more source

Cytoskeletal turnover and Myosin contractility drive cell autonomous oscillations in a model of Drosophila Dorsal Closure [PDF]

, 2014
Oscillatory behaviour in force-generating systems is a pervasive phenomenon in cell biology. In this work, we investigate how oscillations in the actomyosin cytoskeleton drive cell shape changes during the process of Dorsal Closure, a morphogenetic event
Blanchard, Guy B., Duque, Julia, Gorfinkiel, Nicole, Machado, Pedro F.   +3 more
core   +3 more sources

Myosin-Powered Membrane Compartment Drives Cytoplasmic Streaming, Cell Expansion and Plant Development. [PDF]

PLoS ONE, 2015
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, Rex A Cole, John E Fowler, Valerian V Dolja   +3 more
doaj   +1 more source

Activity-dependence of synaptic vesicle dynamics [PDF]

, 2017
The proper function of synapses relies on efficient recycling of synaptic vesicles. The small size of synaptic boutons has hampered efforts to define the dynamical states of vesicles during recycling.
Forte, Luca A, Gramlich, Michael W, Klyachko, Vitaly A   +2 more
core   +2 more sources

Peroxisomal Localization of a Myosin XI Isoform in Arabidopsis thaliana [PDF]

Plant and Cell Physiology, 2005
The genome of Arabidopsis thaliana contains 13 myosin XI isoforms. Here we prepared a specific antibody against a peptide that mimics a unique C-terminal region from the myosin XI isoform, MYA2. The resulting antibody was used to demonstrate that MYA2 in Arabidopsis protein extracts co-sedimented with actin filaments and dissociated from the filaments ...
Kohsuke, Hashimoto, Hisako, Igarashi, Shoji, Mano, Mikio, Nishimura, Teruo, Shimmen, Etsuo, Yokota   +5 more
openaire   +2 more sources

Myosin XI Is Essential for Tip Growth inPhyscomitrella patens  [PDF]

The Plant Cell, 2010
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, Burkart, GM, Augustine, RC, Kerdavid, E, Tuzel, E, Bezanilla, M   +5 more
openaire   +3 more sources

Movement of Lipid Droplets in the Arabidopsis Pollen Tube Is Dependent on the Actomyosin System

Plants, 2023
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, Jinhong Liu, Ching-Kiu Wong, Boon Leong Lim   +3 more
doaj   +1 more source

Stromule extension along microtubules coordinated with actin-mediated anchoring guides perinuclear chloroplast movement during innate immunity. [PDF]

, 2018
Dynamic tubular extensions from chloroplasts called stromules have recently been shown to connect with nuclei and function during innate immunity. We demonstrate that stromules extend along microtubules (MTs) and MT organization directly affects stromule
Alqarni, Ali, Caplan, Jeffrey Lewis, Dinesh-Kumar, Savithramma P, Hoban, Kyle, Kambhamettu, Chandra, Kumar, Amutha Sampath, McDonald, John H, Modla, Shannon, Nedo, Alexander, Park, Eunsook, Ren, Li   +10 more
core   +3 more sources