Results 61 to 70 of about 17,918 (161)

Characterisation of a pucBA deletion mutant from Rhodopseudomonas palustris lacking all but the pucBAd genes [PDF]

, 2017
Rhodopseudomonas palustris is a species of purple photosynthetic bacteria that has a multigene family of puc genes that encode the alpha and beta apoproteins, which form the LH2 complexes.
Carey, Anne-Marie, Cogdell, Richard J., de Percin Northumberland, Claire Ortmann, Gardiner, Alastair T., Henry, Sarah L., Kelly, Sharon M., Mullen, William, Roszak, Aleksander W., Southall, June   +8 more
core   +1 more source

Enhanced Production of Astaxanthin and Zeaxanthin by Paracoccus Sp. LL1 Through Random Mutagenesis

Biotechnology and Applied Biochemistry, Volume 73, Issue 1, Page 255-265, February 2026.
ABSTRACT Astaxanthin, a high‐value carotenoid with potent antioxidant and anti‐inflammatory activities, is increasingly in demand in various industries. This study reports the successful enhancement of astaxanthin and zeaxanthin production in Paracoccus sp. LL1 through random mutagenesis using ethyl methanesulfonate (EMS).
Anoth Maharjan, Beom Soo Kim
wiley   +1 more source

Non‐ Conventional Agents Enhance Sweet Pepper (Capsicum annuum L. var. annuum) Defense against Aphis Gossypii, Thrips Tabaci, and Their Predators Chrysoperla Carnea and Orius Insidiosus

Global Challenges, Volume 10, Issue 2, February 2026.
ABSTRACT A study conducted in Egypt evaluated the effectiveness of chemical and microbial agents in enhancing sweet pepper (Capsicum annuum var. annuum) defenses against major pests Aphis gossypii and Thrips tabaci and their natural predators, Chrysoperla carnea and Orius insidiosus. Five foliar treatments were tested under greenhouse conditions during
Mohamed S. Zayed, Mahmoud A. Hegab, Moustafa S. SaadAllah, El‐Said M. Elnabawy, Hossam S. El‐Beltagi, Atef Abo‐Ogiala, Amged El‐Harariy   +6 more
wiley   +1 more source

Single‐Chain Anti‐IL‐1β Antibody Carried by Outer Membrane Vesicles of Bacteroides fragilis Alleviates Tubular Inflammation in Chronic Kidney Disease

Journal of Extracellular Vesicles, Volume 15, Issue 2, February 2026.
Engineered Bacteroides fragilis outer membrane vesicles carrying anti‐IL‐1β scFv and kidney‐targeting peptides alleviate renal inflammation and injury in CKD mouse models via precise delivery and NF‐κB inhibition. ABSTRACT Microinflammation is a key driver of chronic kidney disease (CKD) progression, with interleukin‐1β (IL‐1β) playing a pivotal role ...
Liang Li, Xue Qi Li, Jia Xiu Zhang, Qin Yi Wu, Pei Pei Chen, Xiong Zhong Ruan, Kun Ling Ma   +6 more
wiley   +1 more source

A Rhodobacter sphaeroides Protein Mechanistically Similar to Escherichia coli DksA Regulates Photosynthetic Growth

mBio, 2014
DksA is a global regulatory protein that, together with the alarmone ppGpp, is required for the “stringent response” to nutrient starvation in the gammaproteobacterium Escherichia coli and for more moderate shifts between growth conditions.
Christopher W. Lennon, Kimberly C. Lemmer, Jessica L. Irons, Max I. Sellman, Timothy J. Donohue, Richard L. Gourse, Wilma Ross   +6 more
doaj   +1 more source

Rhodobacter veldkampii, a new species of phototrophic purple nonsulfur bacteria [PDF]

, 1985
We describe a new species of purple nonsulfur bacteria, which has the ability to grow under photoautotrophic growth conditions with sulfide as an electron donor and shows the characteristic properties of Rhodobacter species (i.e., ovoid to rod-shaped ...
Hansen, T. A., Imhoff, Johannes F.
core   +1 more source

A Novel Link Between Electron Transport Chain Modulation and mcl‐PHA Production in Pseudomonas aeruginosa 5300 Using Azide as a Modulator

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
The oleic acid and azide inhibited the cytochrome c oxidase activity in Pseudomonas aeruginosa MCC 5300, shifting the electron flux towards bd‐oxidase. This resulted in more NADH consumption to maintain the proton gradient for energy generation. The rapid depletion of NADH triggered high mcl‐PHA accumulation.
Raghavendra Paduvari, Divyashree Somashekara   +1 more
wiley   +1 more source

CHEMICALLY MODIFIED PHOTOSYNTHETIC BACTERIAL REACTION CENTERS: CIRCULAR DICHROISM, RAMAN RESONANCE, LOW TEMPERATURE ABSORPTION, FLUORESCENCE AND ODMR SPECTRA AND POLYPEPTIDE COMPOSITION OF BOROHYDRIDE TREATED REACTION CENTERS FROM Rhodobacter sphaeroides R26 [PDF]

, 1988
Reaction centers from Rhodobacter sphaeroides have been modified by treatment with sodium borohydride similar to the original procedure [Ditson et al., Biochim. Biophys. Acta 766, 623 (1984)], and investigated spectroscopically and by gel electrophoresis.
Angerhofer A., Angerhofer A., Beck J., Breton J., Clayton R. K., Crestfield A. M., Feher G., Hoff A., Holten D., Lutz M., Lutz M., Ogrodnik A., Reed D. W., Robert B., Steiner R.   +14 more
core   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, Volume 600, Issue 2, Page 164-187, January 2026.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source

Biosupercapacitors for Human‐Powered Electronics

Advanced Functional Materials, Volume 36, Issue 9, 29 January 2026.
Biosupercapacitors are emerging as biocompatible and integrative energy systems for next‐generation bioelectronics, offering rapid charge–discharge performance and mechanical adaptability. This review systematically categorizes their applications from external to organ‐level systems and highlights their multifunctional roles in sensing, actuation, and ...
Suhyeon Kim, Seungho Baek, Woojung Jung, Hayeon Bae, Junyoung Mun, Yong Ho Kim, Sunkook Kim, Jung Ho Kim   +7 more
wiley   +1 more source