Results 1 to 10 of about 15,438,001 (312)

A mechano-osmotic feedback couples cell volume to the rate of cell deformation [PDF]

open access: yeseLife, 2022
Mechanics has been a central focus of physical biology in the past decade. In comparison, how cells manage their size is less understood. Here, we show that a parameter central to both the physics and the physiology of the cell, its volume, depends on a ...
Larisa Venkova   +15 more
doaj   +2 more sources

Seasonal Variation in Viral Infection Rates and Cell Sizes of Infected Prokaryotes in a Large and Deep Freshwater Lake (Lake Biwa, Japan)

open access: yesFrontiers in Microbiology, 2021
As viruses regulate prokaryotic abundance and the carbon cycle by infecting and lysing their prokaryotic hosts, the volume of infected prokaryotes is an important parameter for understanding the impact of viruses on aquatic environments.
Shang Shen, Yoshihisa Shimizu
doaj   +1 more source

Physical basis of the cell size scaling laws

open access: yeseLife, 2023
Cellular growth is the result of passive physical constraints and active biological processes. Their interplay leads to the appearance of robust and ubiquitous scaling laws relating linearly cell size, dry mass, and nuclear size.
Romain Rollin   +2 more
doaj   +1 more source

The limiting effect of genome size on xylem vessel diameter is shifted by environmental pressures in seed plants

open access: yesPlant Direct, 2022
Current and previous studies have extensively studied the physiological and ecological consequences of genome size (GS) on plants because of the limiting effect of GS on cell size.
Xiangyan Feng   +6 more
doaj   +1 more source

Putting scaling laws on a physical foundation

open access: yeseLife, 2023
As a cell changes size during the cell cycle, why does its density remain constant?
Yiyang Ye, Jie Lin
doaj   +1 more source

Dynamics of cell mass and size control in multicellular systems and the human body

open access: yesJournal of Biological Research - Thessaloniki, 2022
Cellular processes, in particular homeostasis and growth, require an intricate and complex exchange of matter between a cell and its surroundings. Yet experimental difficulties have prevented a detailed description of the dynamics of a cell’s mass and ...
David Martinez-Martin
doaj   +1 more source

Ions, cell volume, and apoptosis [PDF]

open access: yesProceedings of the National Academy of Sciences, 2000
Programmed cell death culminating in apoptosis is responsible for normal tissue homeostasis and has increasingly been implicated in mediating pathological cell loss (1–3). Apoptosis is accompanied by characteristic morphological changes, including cell body and nuclear condensation, chromatin margination, and the formation of membrane-bound remnants ...
S P, Yu, D W, Choi
openaire   +2 more sources

Effects of Endogenous Hormones and Sugars on Fruit Size Driven by Cell Division between Korla Fragrant Pear and Its Bud Mutation

open access: yesHortScience, 2021
Large-fruit bud mutations are important factors in fruit tree breeding. However, little is known about the differences between varieties and bud mutations.
Jia Tian   +5 more
doaj   +1 more source

Cell AT-Models for Digital Volumes [PDF]

open access: yes, 2009
In [4], given a binary 26-adjacency voxel-based digital volume V, the homological information (that related to n-dimensional holes: connected components, ”tunnels” and cavities) is extracted from a linear map (called homology gradient vector field) acting on a polyhedral cell complex P(V) homologically equivalent to V.
Pedro Real 0001, Helena Molina-Abril
openaire   +4 more sources

Triggering of Suicidal Erythrocyte Death by Celecoxib

open access: yesToxins, 2013
The selective cyclooxygenase-2 (COX-2) inhibitor celecoxib triggers apoptosis of tumor cells and is thus effective against malignancy. The substance is at least partially effective through mitochondrial depolarization.
Florian Lang   +3 more
doaj   +1 more source

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