Results 51 to 60 of about 29,473 (151)
Myosins XI modulate host cellular responses and penetration resistance to fungal pathogens [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance Remodeling of actin cytoskeleton is thought to contribute to the establishment of effective barriers at the periphery of plant cells against fungal ingress. However, there is little information on the molecular mechanisms that regulate actin remodeling during interactions with invading pathogens.
Long, Yang +5 more
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Functions of plant-specific myosin XI: from intracellular motility to plant postures [PDF]
Current Opinion in Plant Biology, 2015 The plant-specific protein motor class myosin XI is known to function in rapid bulk flow of the cytoplasm (cytoplasmic streaming) and in organellar movements. Recent studies unveiled a wide range of physiological functions of myosin XI motors, from intracellular motility to organ movements. Arabidopsis thaliana has 13 members of myosin XI class.
Ueda, Haruko +2 more
openaire +2 more sources
Incorporating chemical signalling factors into cell-based models of growing epithelial tissues [PDF]
, 2011 In this paper we present a comprehensive computational framework within which the effects of chemical signalling factors on growing epithelial tissues can be studied. The method incorporates a vertex-based cell model, in conjunction with a solver for the
Baker, R. E. +3 more
core +2 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
Mechanics of collective unfolding [PDF]
, 2015 Mechanically induced unfolding of passive crosslinkers is a fundamental biological phenomenon encountered across the scales from individual macro-molecules to cytoskeletal actin networks. In this paper we study a conceptual model of athermal load-induced
Allain, J. -M +2 more
core +5 more sources
Requirements for contractility in disordered cytoskeletal bundles
, 2012 Actomyosin contractility is essential for biological force generation, and is well understood in highly organized structures such as striated muscle. Additionally, actomyosin bundles devoid of this organization are known to contract both in vivo and in ...
Aaron R Dinner +8 more
core +1 more source
Elastically coupled molecular motors
, 1998 We study the influence of filament elasticity on the motion of collective molecular motors. It is found that for a backbone flexibility exceeding a characteristic value (motor stiffness divided through the mean displacement between attached motors), the ...
Frey, Erwin +2 more
core +1 more source
Regulation of organ straightening and plant posture by an actin–myosin XI cytoskeleton [PDF]
Nature Plants, 2015 Plants are able to bend nearly every organ in response to environmental stimuli such as gravity and light(1,2). After this first phase, the responses to stimuli are restrained by an independent mechanism, or even reversed, so that the organ will stop bending and attain its desired posture.
Okamoto, Keishi +7 more
openaire +2 more sources
, 2016 How the cells break symmetry and organize their edge activity to move directionally is a fun- damental question in cell biology. Physical models of cell motility commonly rely on gradients of regulatory factors and/or feedback from the motion itself to ...
Ambuhl, Mark E. +6 more
core +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 +10 more
core +3 more sources