Abstract:
:The study on aerial plant organs (leaves and stems) motions is reviewed. The history of observations and studies is put in the perspective of the ideas surrounding them, leading to a presentation of the current classification of these motions. After showing the shortcomings of such a classification, we present, following an idea of Darwin's, the various movements in a renewed and observation-based perspective of the plant development. With this perspective, the different movements fit together logically, and in particular we point out that the mature reversible movements, such as the sensitive or circadian movements, are just partial regressions of the developmental ones.
journal_name
Phys Bioljournal_title
Physical biologyauthors
Rivière M,Derr J,Douady Sdoi
10.1088/1478-3975/aa5945subject
Has Abstractpub_date
2017-08-21 00:00:00pages
051001issue
5eissn
1478-3967issn
1478-3975journal_volume
14pub_type
历史文章,杂志文章,评审相关文献
PHYSICAL BIOLOGY文献大全abstract::Cells of the immune system are confronted with opposing pro- and anti-inflammatory signals. Dendritic cells (DC) integrate these cues to make informed decisions whether to initiate an immune response. Confronted with exogenous microbial stimuli, DC endogenously produce both anti- (IL-10) and pro-inflammatory (TNFα) cu...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/aaaa0a
更新日期:2018-05-16 00:00:00
abstract::We study diffusion of macromolecules in a crowded cytoplasm-like environment, focusing on its dependence on composition and its crossover to the anomalous subdiffusion. The crossover and the diffusion itself depend on both the volume fraction and the relative concentration of macromolecules. In accordance with previou...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/12/4/046003
更新日期:2015-05-28 00:00:00
abstract::The maintenance of tissue integrity is essential for the life of multicellular organisms. Healing of a skin wound is a paradigm for how various cell types localize and repair tissue perturbations in an orchestrated fashion. To investigate biophysical mechanisms associated with wound localization, we focus on a model s...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/aa6b67
更新日期:2017-06-28 00:00:00
abstract::Protein-protein interactions are central to biology and, in this 'post-genomic era', prediction of these interactions has become the goal of many computational efforts. Close inspection of even relatively simple biological regulatory circuitry reveals multiple levels of control of the contributing protein interactions...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/2/2/S07
更新日期:2005-06-01 00:00:00
abstract::Identifying the cues followed by cells is key to understand processes as embryonic development, tissue homeostasis, or several pathological conditions. Based on a durotaxis model, it is shown that cells moving on predeformed thin elastic membrane follow the direction of increasing strain of the substrate. This mechani...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/ab39c7
更新日期:2019-09-06 00:00:00
abstract::Calcium homeostasis is considered to be one of the most important factors for the contraction and relaxation of the heart muscle. However, under some pathological conditions, such as heart failure (HF), calcium homeostasis is disordered, and spontaneous waves may occur. In this study, we developed a mathematical model...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/7/2/026005
更新日期:2010-05-26 00:00:00
abstract::Branching morphogenesis is a widely spread phenomenon in nature. In organogenesis, it results from the inhomogeneous growth of the epithelial sheet, leading to its repeated branching into surrounding mesoderm. Lung morphogenesis is an emblematic example of tree-like organogenesis common to most mammals. The core signa...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/9/6/066006
更新日期:2012-12-01 00:00:00
abstract::A vast literature has explored the genetic interactions among the cellular components regulating gene expression in many organisms. Early on, in the absence of any biochemical definition, regulatory modules were conceived using the strict formalism of genetics to designate the modifiers of phenotype as either cis- or ...
journal_title:Physical biology
pub_type: 杂志文章,评审
doi:10.1088/1478-3975/8/3/035011
更新日期:2011-06-01 00:00:00
abstract::Epigenetic mechanisms of silencing via heritable chromatin modifications play a major role in gene regulation and cell fate specification. We consider a model of epigenetic chromatin silencing in budding yeast and study the bifurcation diagram and characterize the bistable and the monostable regimes. The main focus of...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/10/3/036005
更新日期:2013-06-01 00:00:00
abstract::A cluster of neural crest cells (NCCs) may chemotax up a shallow external gradient to which a single cell is unresponsive. To explain this intriguing 'group advantage', we propose a chemo-mechanical model based on the signaling proteins Rac1 and RhoA. We represent each cell as a polygon with nodes connected by elastic...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/ab71f1
更新日期:2020-03-10 00:00:00
abstract::This report presents a simple model that describes the motion of a single Dictyostelium discoideum cell exposed to a traveling wave of cyclic adenosine monophosphate (cAMP). The model incorporates two types of responses to stimulation by cAMP: the changes in the polarity and motility of the cell. The periodic change i...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/12/2/026004
更新日期:2015-03-19 00:00:00
abstract::Folate deficiency is accompanied by a decline in the cognitive neurotransmitter acetylcholine and a decline in cognitive performance in mice lacking apolipoprotein E (ApoE-/- mice), a low-density lipoprotein that regulates aspects of lipid metabolism. One direct consequence of folate deficiency is a decline in S-adeno...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/5/4/044002
更新日期:2008-12-19 00:00:00
abstract::We propose a three-dimensional mechanical model of embryonic tissue dynamics. Mechanically coupled adherent cells are represented as particles interconnected with elastic beams which can exert non-central forces and torques. Tissue plasticity is modeled by a stochastic process consisting of a connectivity change (addi...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/12/1/016005
更新日期:2014-12-15 00:00:00
abstract::Sequence-dependent DNA flexibility is an important structural property originating from the DNA 3D structure. In this paper, we investigate the DNA flexibility of the budding yeast (S. Cerevisiae) replication origins on a genome-wide scale using flexibility parameters from two different models, the trinucleotide and t...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/5/3/036012
更新日期:2008-09-29 00:00:00
abstract::Cells can often choose among several stably heritable phenotypes. Examples are the expressions of genes in eukaryotic cells where long chromosomal regions can adopt persistent and heritable silenced or active states that may be associated with positive feedback in dynamic modification of nucleosomes. We generalize thi...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/7/2/026010
更新日期:2010-06-04 00:00:00
abstract::Type I collagen is a versatile biomaterial that is widely used in medical applications due to its weak antigenicity, robust biocompatibility, and its ability to be modified for a wide array of applications. As such, collagen has become a major component of many tissue engineering scaffolds, drug delivery platforms, an...
journal_title:Physical biology
pub_type: 杂志文章,评审
doi:10.1088/1478-3975/12/6/061002
更新日期:2015-12-21 00:00:00
abstract::Recently, major progress has been made to develop computational models to predict and explain the mechanisms and behaviors of gene regulation. Here, we review progress on how these mechanisms and behaviors have been interpreted with analog models, where cell properties continuously modulate transcription, and digital ...
journal_title:Physical biology
pub_type: 杂志文章,评审
doi:10.1088/1478-3975/12/4/045004
更新日期:2015-06-18 00:00:00
abstract::Many single-cell observables are highly heterogeneous. A part of this heterogeneity stems from age-related phenomena: the fact that there is a nonuniform distribution of cells with different ages. This has led to a renewed interest in analytic methodologies including use of the 'von Foerster equation' for predicting p...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/aab0e6
更新日期:2018-03-14 00:00:00
abstract::Oscillations play an important physiological role in a variety of biological systems. For example, respiration and carbohydrate synthesis are coupled to the circadian clock in cyanobacteria (Ishiura et al 1998 Science 281 1519) and ultradian oscillations with time periods of a few hours have been observed in immune re...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/6/3/036009
更新日期:2009-05-21 00:00:00
abstract::Particle-based simulators represent molecules of interest with point-like particles that diffuse and react in continuous space. These simulators are often used to investigate spatial or stochastic aspects of biochemical systems. This paper presents new particle-based simulation algorithms for modeling interactions bet...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/6/4/046015
更新日期:2009-11-12 00:00:00
abstract::Traditionally animal groups have been characterized by the macroscopic patterns that they form. It is now recognised that such patterns convey limited information about the nature of the aggregation as a whole. Aggregate properties cannot be determined by passive observations alone; instead one must interact with them...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/ab12b9
更新日期:2019-04-23 00:00:00
abstract::Transendothelial migration is a crucial process of the metastatic cascade in which a malignant cell attaches itself to the endothelial layer forming the inner wall of a blood or lymph vessel and creates a gap through which it enters into the bloodstream (or lymphatic system) and then is transported to distant parts of...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/6/1/016008
更新日期:2009-03-25 00:00:00
abstract::Modeling the spatiotemporal dynamics of biochemical reaction systems at single-molecule resolution has become feasible with the increase of computing power and is applied especially to cellular signal transduction. For an association reaction the two molecules have to be in contact. Hence, a physically faithful model ...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/10/4/046005
更新日期:2013-08-01 00:00:00
abstract::Asexual reproduction in multicellular organisms is a complex biophysical process that is not yet well understood quantitatively. Here, we report a detailed population study for the asexual freshwater planarian Schmidtea mediterranea, which can reproduce via transverse fission due to a large stem cell contingent. Our l...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/8/2/026003
更新日期:2011-04-01 00:00:00
abstract::The single-molecule fluorescence technique is becoming a general and mature tool to probe interactions and dynamics of biomolecules with ultra high precision and accuracy. However, nonspecific adsorption of biomolecules to the flow cells remains a major experimental riddle for the study of many complex biological syst...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/12/4/045006
更新日期:2015-06-29 00:00:00
abstract::Electrostatic interaction is the driving force for the encapsulation by virus coat proteins of nanoparticles such as quantum dots, gold particles and magnetic beads for, e.g., imaging and therapeutic purposes. In recent experimental work, Daniel et al (2010 ACS Nano 4 3853-60) found the encapsulation efficiency to sen...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/9/6/066004
更新日期:2012-12-01 00:00:00
abstract::Thrombosis accounts for 80% of deaths in patients with diabetes mellitus. Diabetic patients demonstrate tortuous microvessels and larger than normal platelets. Large platelets are associated with increased platelet activation and thrombosis, but the physical effects of large platelets in the microscale processes of th...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/10/5/056003
更新日期:2013-10-01 00:00:00
abstract::Epithelial-to-mesenchymal transition (EMT) is a fundamental developmental process wherein polarized epithelial cells lose their junctional architecture and apical-basal polarity to become motile mesenchymal cells, and there is emerging evidence for its role in propagating tumor dissemination. While many multifaceted n...
journal_title:Physical biology
pub_type: 杂志文章,评审
doi:10.1088/1478-3975/ab157a
更新日期:2019-05-07 00:00:00
abstract::How cell collectives move and deposit subunits within a developing embryo is a question of outstanding interest. In many cases, a chemotactic mechanism is employed, where cells move up or down a previously generated attractive or repulsive gradient of signalling molecules. Recent studies revealed the existence of syst...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/8/4/045004
更新日期:2011-08-01 00:00:00
abstract::Oncolytic virotherapy-the use of viruses that specifically kill tumor cells-is an innovative and highly promising route for treating cancer. However, its therapeutic outcomes are mainly impaired by the host immune response to the viral infection. In this paper, we propose a multiscale mathematical model to study how t...
journal_title:Physical biology
pub_type: 杂志文章
doi:10.1088/1478-3975/10/2/025005
更新日期:2013-04-01 00:00:00