Results 291 to 300 of about 553,384 (408)

Does the abiotic environment influence the distribution of flower and fruit colors?

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Color in flowers and fruits carries multiple functions, from attracting animal partners (pollinators, dispersers) to mitigating environmental stress (cold, drought, UV‐B). With research historically focusing on biotic interactions as selective agents, however, it remains unclear whether abiotic stressors impact flower and fruit colors ...
Agnes S. Dellinger   +3 more
wiley   +1 more source

Barrierless Electron Transfer in a Photosynthetic Reaction Center Model

open access: yesAngewandte Chemie, Volume 137, Issue 12, March 17, 2025.
Ultrafast IR absorption spectroscopy was utilized to interrogate excited‐state electron transfer in a strongly‐coupled, cyanide‐bridged photoinduced mixed‐valent system. Despite structural asymmetry, a flat excited‐state potential energy surface with a single minimum was found, showing a Class III behavior.
Tobias Ullrich   +3 more
wiley   +2 more sources

Photosynthesis [PDF]

open access: yesBiophysical Journal, 2008
openaire   +1 more source

Osmoxylon‐like fossils from early Eocene South America: West Gondwana–Malesia connections in Araliaceae

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Araliaceae comprise a moderately diverse, predominantly tropical angiosperm family with a limited fossil record. Gondwanan history of Araliaceae is hypothesized in the literature, but no fossils have previously been reported from the former supercontinent.
Peter Wilf
wiley   +1 more source

meso‐Free Porphyrinoids

open access: yesAsian Journal of Organic Chemistry, EarlyView.
meso‐Free porphyrinoids are recognized as a versatile platform for further functionalization and oligomerization. The synthesis and characteristic features of such meso‐free porphyrinoids are reviewed. Abstract meso‐Unsubstituted (meso‐free) porphyrins have been an effective platform for creating versatile peripherally functionalized porphyrins and ...
Takayuki Tanaka   +2 more
wiley   +1 more source

Photosynthesis of NH3 from NO3− Using CH4 in Homogenous Rhenium Catalysis

open access: yesAngewandte Chemie, EarlyView.
We present a Re catalysis of one‐pot synthesis of NH3 from NO3− using CH4 as a reductant under UV light irradiation. We are able to directly convert NO3−, leading to several environmental issues, to NH3, an essential compound as a fertilizer and industrial raw material, by means of CH4, which has a high affinity with renewable resource/energy, as a ...
Genta Nakamura   +7 more
wiley   +2 more sources

Home - About - Disclaimer - Privacy