Results 41 to 50 of about 4,134,739 (261)

The PEAPOD repressor complex in Arabidopsis stomatal development

open access: yesFrontiers in Plant Science
Stomata comprise two guard cells that function as microscopic valves in the plant epidermis, connecting mesophyll interstices to the atmosphere. Stomata regulate gas exchange and evapotranspiration, directly impacting photosynthesis and leaf temperature ...
Josué Saiz-Pérez   +2 more
doaj   +1 more source

Aberrant light sensing and motility in the green alga Chlamydomonas priscuii from the ice-covered Antarctic Lake Bonney

open access: yesPlant Signaling & Behavior, 2023
The Antarctic green alga Chlamydomonas priscuii is an obligate psychrophile and an emerging model for photosynthetic adaptation to extreme conditions.
Mackenzie Poirier   +4 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

A Regulatory Mechanism on Pathways: Modulating Roles of MYC2 and BBX21 in the Flavonoid Network

open access: yesPlants
Genes of metabolic pathways are individually or collectively regulated, often via unclear mechanisms. The anthocyanin pathway, well known for its regulation by the MYB/bHLH/WDR (MBW) complex but less well understood in its connections to MYC2, BBX21 ...
Nan Li, Yunzhang Xu, Yingqing Lu
doaj   +1 more source

RcaE-Dependent Regulation of Carboxysome Structural Proteins Has a Central Role in Environmental Determination of Carboxysome Morphology and Abundance in Fremyella diplosiphon

open access: yesmSphere, 2018
Carboxysomes are central to the carbon dioxide-concentrating mechanism (CCM) and carbon fixation in cyanobacteria. Although the structure is well understood, roles of environmental cues in the synthesis, positioning, and functional tuning of carboxysomes
Brandon A. Rohnke   +3 more
doaj   +1 more source

Increase in Visibility of Light Signals

open access: yesMechanical Engineering Research, 2015
This work describes a study of perception of light signals used in aeronautics. Devices known as "obstruction light" (L-810 type, according to the Organization of International Civil Aviation OACI and the Federal Aviation Administration FAA) with LED technology were fed with square pulses of voltage, attaining flashes with imperceptible rise times. The
Pablo Ixtaina   +2 more
openaire   +4 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

CML38 is involved in NO-induced inhibition of hypocotyl elongation in Arabidopsis

open access: yesFrontiers in Plant Science
Calcium ions (Ca2+) are vital in plants, functioning both as structural cellular components and key secondary messengers that regulate growth, development, and stress responses.
Dongsheng Wang   +4 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Notch2 signaling in development and cancer [PDF]

open access: yes, 2012
Notch signaling via cell to cell interaction is a key mechanism in regulating proliferation, cell fate decisions and survival of various cell types in both invertebrates and vertebrates.
Tchorz, Jan Stephan
core   +1 more source

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