ArticleMicrobiology (Reading, England)2010
FdTonB is involved in the photoregulation of cellular morphology during complementary chromatic adaptation in Fremyella diplosiphon.
Article in Microbiology (Reading, England), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Reflections on Cyanobacterial Chromatic Acclimation: Exploring the Molecular Bases of Organismal Acclimation and Motivation for Rethinking the Promotion of Equity in STEM.Microbiology and molecular biology reviews : MMBR · 2022Review
- Emerging Species and Genome Editing Tools: Future Prospects in Cyanobacterial Synthetic Biology.Microorganisms · 2019Review
- Homeostasis of Second Messenger Cyclic-di-AMP Is Critical for Cyanobacterial Fitness and Acclimation to Abiotic Stress.Frontiers in microbiology · 2018Article
- Article
- The Tryptophan-Rich Sensory Protein (TSPO) is Involved in Stress-Related and Light-Dependent Processes in the Cyanobacterium Fremyella diplosiphon.Frontiers in microbiology · 2015Article
- Temporal dynamics of changes in reactive oxygen species (ROS) levels and cellular morphology are coordinated during complementary chromatic acclimation in Fremyella diplosiphon.Photosynthesis research · 2013Article
- Light Quantity Affects the Regulation of Cell Shape in Fremyella diplosiphon.Frontiers in microbiology · 2012Article
- Convergence and divergence of the photoregulation of pigmentation and cellular morphology in Fremyella diplosiphon.Plant signaling & behavior · 2011Article
- A novel role for a TonB-family protein and photoregulation of iron acclimation in Fremyella diplosiphon.Plant signaling & behavior · 2010Article
- Exploiting the autofluorescent properties of photosynthetic pigments for analysis of pigmentation and morphology in live Fremyella diplosiphon cells.Sensors (Basel, Switzerland) · 2010Article
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2 authors.
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Abstract
We have characterized a Fremyella diplosiphon TonB protein (FdTonB) and investigated its function during complementary chromatic adaptation. Sequence similarity analysis of FdTonB (571 aa) led to identification of several conserved domains characteristic of TonB proteins, including an N-terminal transmembrane domain, a central proline-rich spacer and a C-terminal TonB-related domain (TBRD). We identified a novel glycine-rich domain containing (Gly-X)(n) repeats. To assess FdTonB function, we constructed a DeltatonB mutant through homologous recombination based upon truncation of the central proline-rich spacer, glycine-rich domain and TBRD. Our DeltatonB mutant exhibited an aberrant cellular morphology under green light, with expanded cell width compared to the parental wild-type (WT) strain. The cellular morphology of the DeltatonB mutant recovered upon WT tonB expression. Interestingly, tonB expression was found to be independent of RcaE. As DeltatonB and WT strains respond in the same way when grown under iron-replete versus iron-limited conditions, our results suggest that FdTonB is not involved in the classic TonB function of mediating cellular adaptation to iron limitation, but exhibits a novel function related to the photoregulation of cellular morphology in F. diplosiphon.
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