Results 41 to 50 of about 5,248,930 (285)

Multiscale analysis reveals that diet-dependent midgut plasticity emerges from alterations in both stem cell niche coupling and enterocyte size

open access: yeseLife, 2021
The gut is the primary interface between an animal and food, but how it adapts to qualitative dietary variation is poorly defined. We find that the Drosophila midgut plastically resizes following changes in dietary composition.
Alessandro Bonfini   +6 more
doaj   +1 more source

What determines cell size?

open access: yesBMC Biology, 2012
AbstractFirst paragraph (this article has no abstract) For well over 100 years, cell biologists have been wondering what determines the size of cells. In modern times, we know all of the molecules that control the cell cycle and cell division, but we still do not understand how cell size is determined.
Joseph Frankel   +11 more
openaire   +7 more sources

Control and maintenance of mammalian cell size

open access: yesBMC Cell Biology, 2004
Background Conlon and Raff propose that mammalian cells grow linearly during the division cycle. According to Conlon and Raff, cells growing linearly do not need a size checkpoint to maintain a constant distribution of cell sizes.
Cooper Stephen
doaj   +1 more source

Proline affects the size of the root meristematic zone in Arabidopsis [PDF]

open access: yes, 2015
We reported previously that root elongation in Arabidopsis is promoted by exogenous proline, raising the possibility that this amino acid may modulate root growth.
BIANCUCCI, MARCO   +5 more
core   +1 more source

Cell-size dependent progression of the cell cycle creates homeostasis and flexibility of plant cell size [PDF]

open access: yesNature Communications, 2017
AbstractMean cell size at division is generally constant for specific conditions and cell types, but the mechanisms coupling cell growth and cell cycle control with cell size regulation are poorly understood in intact tissues. Here we show that the continuously dividing fields of cells within the shoot apical meristem of Arabidopsis show dynamic ...
Jones, Angharad R.   +6 more
openaire   +10 more sources

The TOR Signaling Pathway in Spatial and Temporal Control of Cell Size and Growth

open access: yesFrontiers in Cell and Developmental Biology, 2017
Cell size is amenable by genetic and environmental factors. The highly conserved nutrient-responsive Target of Rapamycin (TOR) signaling pathway regulates cellular metabolic status and growth in response to numerous inputs.
Suam Gonzalez, Charalampos Rallis
doaj   +1 more source

Quantitative Cellular Evaluation and Anatomical Organization of the External Region of Different Genetic Materials and Maturation Stages of Tomato Processing [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2020
The effect of the anatomical structure of tomato skin may be significant for quality determination at the harvest point, but the definitions of cells that constitute the skin of fleshy fruits, such as tomato, are still unclear, providing contradictory ...
Darlene Ana de Paula Vieira   +4 more
doaj   +1 more source

Mitotic spindle scaling during Xenopus development by kif2a and importin α. [PDF]

open access: yes, 2012
Early development of many animals is characterized by rapid cleavages that dramatically decrease cell size, but how the mitotic spindle adapts to changing cell dimensions is not understood.
HEALD, Rebecca, Wilbur, Jeremy
core   +2 more sources

Control of Transcription by Cell Size

open access: yesPLoS Biology, 2010
Cell size increases significantly with increasing ploidy. Differences in cell size and ploidy are associated with alterations in gene expression, although no direct connection has been made between cell size and transcription. Here we show that ploidy-associated changes in gene expression reflect transcriptional adjustment to a larger cell size ...
Wu, Chia-Yung   +4 more
openaire   +7 more sources

Growth-dependent signals drive an increase in early G1 cyclin concentration to link cell cycle entry with cell growth

open access: yeseLife, 2021
Entry into the cell cycle occurs only when sufficient growth has occurred. In budding yeast, the cyclin Cln3 is thought to initiate cell cycle entry by inactivating a transcriptional repressor called Whi5.
Robert A Sommer   +3 more
doaj   +1 more source

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