Results 61 to 70 of about 32,552 (229)

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid   +3 more
wiley   +1 more source

Systems biology approaches for chemical engineering [PDF]

open access: yes, 2011
Biological systems are becoming of central interest also in fields which go beyond science and medicine scopes, such as chemical engineering. In the last decades, some complex biological systems have been considered for large scale chemicals production ...
Gatto, Fancesco
core  

Chlamydomonas IFT25 is dispensable for flagellar assembly but required to export the BBSome from flagella

open access: yesBiology Open, 2017
Intraflagellar transport (IFT) particles are composed of polyprotein complexes IFT-A and IFT-B as well as cargo adaptors such as the BBSome. Two IFT-B subunits, IFT25 and IFT27 were found to form a heterodimer, which is essential in exporting the BBSome ...
Bin Dong   +8 more
doaj   +1 more source

Co‐Culture of Mammalian Cells and Photosynthetic Microorganisms for Oxygen Supply in Engineered Tissues

open access: yesCell Proliferation, EarlyView.
Continuous 28‐day light exposure alters behaviours of articular cartilage progenitor cells (ACPCs) and mesenchymal stromal cells (MSCs). Co‐culture with Leptolyngbya and Synechococcus does not adversely affect the chondrogenic capacity of ACPCs over a 28‐day period, in contrast to co‐culture with Chlorella.
Meng Wang   +10 more
wiley   +1 more source

Evolutionary genomics of Chlamydomonas [PDF]

open access: yes, 2021
The unicellular green alga Chlamydomonas reinhardtii is one of the primary model organisms in plant and algal biology. Although the species is fundamental to several research areas, including the study of photosynthesis, cilia and the cell cycle ...
Craig, Rory J.
core   +1 more source

Flagellar assembly in Chlamydomonas reinhardtii regulated by intraflagellar transport protein IFT81

open access: yes工程科学学报, 2015
A Chlamydomonas reinhardtii immobile mutant named ift81 was screened by insertional mutagenesis. The mutant was bald or with two short flagella. Gene sequencing confirmed that fifty-two base pairs in the fifth extron of IFT81 gene were replaced by the ...
SUN Juan
doaj   +1 more source

Structural insights into θ‐type carbonic anhydrases 3 and 4: Tuning the directionality of CO2 hydration in a diatom

open access: yesThe FEBS Journal, EarlyView.
θ‐CA3 from a marine diatom has an N‐terminal transmembrane helix and two homologous catalytic domains. The enzyme functions as a dimer, with active sites formed near the dimer interface. A bicarbonate ion binds on the symmetry axis of the dimer and forms hydrogen bonds with both monomers, thereby activating θ‐CA3 and tuning CO2 hydration activity ...
Hiroto Negoro   +5 more
wiley   +1 more source

Functional characterization of various algal carotenoid ketolases reveals that ketolating zeaxanthin efficiently is essential for high production of astaxanthin in transgenic Arabidopsis [PDF]

open access: yes, 2011
Extending the carotenoid pathway to astaxanthin in plants is of scientific and industrial interest. However, expression of a microbial beta-carotene ketolase (BKT) that catalyses the formation of ketocarotenoids in transgenic plants typically results in ...
Huang, Jun-Chao   +24 more
core   +1 more source

Uncovering the role of the PPR protein PHOTOSYSTEM ONE BIOGENESIS FACTOR6 in splicing chloroplast group II introns

open access: yesJournal of Integrative Plant Biology, EarlyView.
The P‐class pentatricopeptide repeat (PPR) protein PHOTOSYSTEM ONE BIOGENESIS FACTOR (PBF6) forms splicing complexes with other known splicing factors to facilitate chloroplast intron splicing. PBF6 cooperates with other PPR splicing factors to promote the splicing of the same intron through forming respective splicing complexes.
Mengyu Li   +6 more
wiley   +1 more source

When Unity Is Strength: The Strategies Used by Chlamydomonas to Survive Environmental Stresses

open access: yesCells, 2019
The unicellular green alga Chlamydomonas reinhardtii is a valuable model system to study a wide spectrum of scientific fields, including responses to environmental conditions.
Félix de Carpentier   +2 more
doaj   +1 more source

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