Results 51 to 60 of about 17,918 (161)

Enhancing polyphenol synthesis and antioxidant activity in Camellia sinensis using shikimic and salicylic acids

open access: yesJSFA reports, Volume 6, Issue 3, Page 73-87, March 2026.
Abstract Background Camellia sinensis, widely consumed as tea, is the second most popular beverage globally and is valued for its health benefits. However, environmental stressors pose a significant challenge to the tea industry. This study investigates the potential of shikimic acid (ShA) and its derivative, salicylic acid (SA), as inducers to enhance
Mir Sultanul Arafin   +4 more
wiley   +1 more source

Unraveling Mechanisms and Impact of Microbial Recruitment on Oilseed Rape (Brassica napus L.) and the Rhizosphere Mediated by Plant Growth-Promoting Rhizobacteria

open access: yesMicroorganisms, 2021
Plant growth-promoting rhizobacteria (PGPR) are noticeably applied to enhance plant nutrient acquisition and improve plant growth and health. However, limited information is available on the compositional dynamics of rhizobacteria communities with PGPR ...
Ying Liu   +10 more
doaj   +1 more source

Phylogenies of atpD and recA support the small subunit rRNA-based classification of rhizobia [PDF]

open access: yes, 2001
The current classification of the rhizobia (root-nodule symbionts) assigns them to six genera. It is strongly influenced by the small subunit (16S, SSU) rRNA molecular phylogeny, but such single-gene phylogenies may not reflect the evolution of the ...
Gaunt, M.W.   +4 more
core   +1 more source

Synthetic Cells on Demand: From Molecular Stimuli to Cellular Functions

open access: yesChemSystemsChem, Volume 8, Issue 2, March 2026.
ABSTRACT Synthetic cells constructed via bottom‐up approaches using lipid or polymer vesicles have become essential tools for mimicking cellular functions and studying synthetic biological systems. These vesicles can undergo morphological changes and trigger internal reactions in response to external stimuli, such as osmotic pressure, temperature, pH ...
Masato Suzuki, Koki Kamiya
wiley   +1 more source

Plant-Growth-Promoting Effect by Cell Components of Purple Non-Sulfur Photosynthetic Bacteria

open access: yesMicroorganisms, 2022
Rhodobacter sphaeroides, a purple non-sulfur photosynthetic bacterium (PNSB), was disrupted by sonication and fractionated by centrifugation into the supernatant and pellet.
Shuhei Hayashi   +7 more
doaj   +1 more source

The Bacterial Photosynthetic Reaction Center as a Model for Membrane Proteins [PDF]

open access: yes, 1989
Membrane proteins participate in many fundamental cellular processes. Until recently, an understanding of the function and properties of membrane proteins was hampered by an absence of structural information at the atomic level.
Allen, J. P.   +4 more
core   +1 more source

eMap 2.0: A Web‐Based Platform for Identifying electron Transfer Pathways in Proteins and Protein Families

open access: yesWIREs Computational Molecular Science, Volume 16, Issue 2, March/April 2026.
In this review, we present eMap 2.0, a web‐based platform for analyzing electron transfer pathways in proteins. We highlight representative applications of eMap, including its use in characterizing electron transfer within individual proteins and in revealing shared electron transfer pathways across protein families.
James R. Gayvert   +3 more
wiley   +1 more source

Comparative study of spectral flexibilities of bacterial light-harvesting complexes: Structural implications [PDF]

open access: yes, 2006
This work presents a comparative study of the frequencies of spectral jumping of individual light-harvesting complexes of six different types: LH2 of Rhodopseudomonas acidophila, Rhodobacter sphaeroides, and Rhodospirillum molischianum; LH1 of ...
Cogdell, R.J.   +5 more
core   +2 more sources

Database of low‐temperature absorption and fluorescence spectra of native photosynthetic tetrapyrrole macrocycles

open access: yesPhotochemistry and Photobiology, Volume 102, Issue 2, Page 457-469, March/April 2026.
The absorption and fluorescence spectra at 77 K (frozen glass) and room temperature (fluid solution) are provided for 12 native photosynthetic macrocycles encompassing one porphyrin, eight chlorins, and 3 bacteriochlorins. Abstract Low‐temperature (77 K) absorption and fluorescence spectra of 12 naturally occurring photosynthetic tetrapyrrole ...
Dariusz M. Niedzwiedzki   +2 more
wiley   +1 more source

Quantum Coherence as a Witness of Vibronically Hot Energy Transfer in Bacterial Reaction Centre

open access: yes, 2016
Photosynthetic proteins have evolved over billions of years so as to undergo optimal energy transfer to the sites of charge separation. Based on spectroscopically detected quantum coherences, it has been suggested that this energy transfer is partially ...
Edlund, Petra,   +4 more
core   +1 more source

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