Results 41 to 50 of about 2,301,881 (356)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Investigation of parasitic helminthes in fresh water fishes in higher Zab river in Aski kalak, Erbil, Iraq [PDF]

open access: yesKirkuk Journal of Science, 2015
The microscopical examination of the digestive tract of 994 fishescollected from higher zab river at Aski kalak , Erbil belonging to four families Cyprinidae, Siluridae, Mugilidae and Mastacembelidae showed that they were infected with seven parasitic ...
Dalya S. Hashim   +2 more
doaj   +1 more source

Ground-water resources of the lower Hillsboro Canal area, Southeastern Florida [PDF]

open access: yes, 1970
This study was done to determine the amount and kinds of water being produced from the lower Hillsboro Canal Area in Palm Beach and Broward counties. All of the potable ground water being produced from the Biscayne aquifer is developed from the canal
Hardee, Jack, McCoy, Henry J.
core  

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

Assessment of genetic diversity of Potamon elbursi in eastern rivers of Tehran province [PDF]

open access: yesعلوم محیطی, 2019
Introduction: investigation in genetical diversity are an effective tools for conservation of valuable, rare and endangered species. up until now, few studies have been conducted on the ecology of freshwater crabs in Iran and so their conservation issues
Siamak Yousefi Siahkalroodi   +3 more
doaj   +1 more source

Fresh Water and Smarter Growth: Restoring Healthy Land-water Connections [PDF]

open access: yes, 2011
The paper describes water resources in the United States, discusses the principles of the land-water connection, outlines the current regulatory framework, and explains the impact of climate change.
Ruth Goldman
core  

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Incidences of caudal fin malformation in fishes from Jubail City, Saudi Arabia, Arabian Gulf

open access: yesArchives of Polish Fisheries, 2018
These case studies endeavor to report incidences of caudal fin deformities in several commercial fishes living in natural populations in the Saudi Arabian coastal waters of the Arabian Gulf. Two groups of anomalies were observed, slight and severe.
Jawad Laith A.   +2 more
doaj   +1 more source

Ground Penetrating Radar Measurements in Shallow Water Environments—A Case Study

open access: yesRemote Sensing, 2022
In this study, we investigate GPR measurements in freshwater of less than 5 m at four different locations to derive rules of thumb in terms of depth penetration, resolution, and material contrasts of the method for 200 and 400 MHz antennas under field ...
Annika Fediuk   +3 more
doaj   +1 more source

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