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A C4 plant K+ channel accelerates stomata to enhance C3 photosynthesis and water use efficiency.
Plant Physiol
January 2025
Laboratory of Plant Physiology and Biophysics, Bower Building, and.
Accelerating stomatal kinetics through synthetic optogenetics and mutations that enhance guard cell K+ flux has proven a viable strategy to improve water use efficiency and biomass production. Stomata of the model C4 species Gynandropsis gynandra, a relative of the C3 plant Arabidopsis thaliana, are similarly fast to open and close. We identified and cloned the guard cell rectifying outward K+ channel (GROK) of Gynandropsis and showed that GROK is preferentially expressed in stomatal guard cells.
View Article and Find Full Text PDFEpidermal growth factor receptor exon 20 insertion mutations: are we getting closer to solving the puzzle?
Transl Lung Cancer Res
November 2024
Division of Medical Oncology, Duke Cancer Institute, Durham, NC, USA.
Designing a recombinant coat protein to reduce tobacco mosaic virus infection in plants.
J Biomol Struct Dyn
November 2024
Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran.
The Tobacco Mosaic Virus (TMV) is a critical plant virus that can cause a significant drop in crop yield. To understand how recombinant coat-protein impacts the affinity and assembly of TMV's subunits, research is being conducted to assess the effect of recombinant protein on virus resistance. To develop a recombinant coat-protein that can lower TMV infection rates in plants, a design strategy was employed that involves creating defective viral subunits leading to incorrect assembly.
View Article and Find Full Text PDFUnderstanding cancer from a biophysical, developmental and systems biology perspective using the landscapes-attractor model.
Biosystems
January 2025
Ludwig Boltzmann Institute for Hematology & Oncology, Department of Medicine I, Comprehensive Cancer Center (CCC), Medical University of Vienna, Waehringer Guertel 18 - 20, A-1090, Vienna, Austria. Electronic address:
Biophysical, developmental and systems-biology considerations enable deeper understanding why cancer is life threatening despite intensive research. Here we use two metaphors. Both conceive the cell genome and the encoded molecular system as an interacting gene regulatory network (GRN).
View Article and Find Full Text PDFModels of Fluctuating Selection Between Generations: A Solution for the Theoretical Inconsistency.
J Mol Evol
December 2024
Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, IA, 50011, USA.
Article Synopsis
- The theory of selection fluctuation between generations has been widely discussed in population genetics since the 1970s, highlighting that mutation frequencies may oscillate around 0.5 before becoming fixed or lost.
- The concept of a "reference phenotype" is introduced, which posits that one of the three genotypes (AA, AA', A'A') must retain constant fitness to support fluctuating selection.
- A proposed mixture model suggests that all three genotypes should be considered as potential reference types, revealing that balancing selection emerges based on their relative frequencies.
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