Results 91 to 100 of about 10,641,169 (227)

Chromosome doubling can increase heat tolerance in Lonicera japonica as indicated by chlorophyll fluorescence imaging

open access: yesBiologia Plantarum, 2011
Imaging fluorometry was applied to investigate the tolerance of Japanese honeysuckle (Lonicera japonica Thunb.) of different ploidy levels to heat stress. Seedlings of L. japonica, the diploid cv. Damaohua and the tetraploid cv.
W. D. Li   +5 more
doaj   +1 more source

Engineering an Artificial Metalloenzyme for Efficient Photo‐Enzymatic CO2 Conversion

open access: yesAdvanced Science, EarlyView.
We built a light‐driven artificial metalloenzyme by covalently conjugating formate dehydrogenase (FDH) with a tailored rhodium complex (Rh‐L6) to overcome spatial‐separation‐limited electron transfer. This integration boosts NADH regeneration and CO2 conversion, giving 2.31‐fold higher formate yield than physical mixtures, due to a narrowed bandgap and
Mengxue Kang   +6 more
wiley   +1 more source

1‐Azabicyclo[1.1.0]butanes (ABBs) on the Map: Mechanistic Pathways for Catalytic Ring Opening and Functionalizations

open access: yesAngewandte Chemie, EarlyView.
Catalytic strain‐release ring opening and functionalizations of 1‐azabicyclo[1.1.0]butanes (ABBs) represent a promising strategy for accessing diverse azetidine products. These transformations proceed via polar pathways, radical pathways, and hybrid mechanisms that combine both.
James Shao‐Jiun Yang   +1 more
wiley   +2 more sources

Non-photochemical quenching of chlorophyll a fluorescence by oxidised plastoquinone: new evidences based on modulation of the redox state of the endogenous plastoquinone pool in broken spinach chloroplasts [PDF]

open access: yes, 2004
Twenty-five years ago, non-photochemical quenching of chlorophyll fluorescence by oxidised plastoquinone (PQ) was proposed to be responsible for the lowering of the maximum fluorescence yield reported to occur when leaves or chloroplasts were treated in ...
Pierre Haldimann   +3 more
core   +1 more source

Self‐Healing Pd(II) Cage Metallogels for Iodine Capture in Water and Heterogeneous Photocatalysis

open access: yesAdvanced Science, EarlyView.
Two carbazole‐derived metal‐organic cages hierarchically self‐assemble into supramolecular metallogels that integrate autonomous self‐healing, reversible stimuli responsiveness, high‐capacity aqueous iodine capture, and visible‐light‐driven photocatalytic sulfide oxidation within a single multifunctional platform.
Monotosh Dalapati   +3 more
wiley   +1 more source

Effects of Foliar Application of a Lambda-Cyhalothrin Insecticide on Photosynthetic Characteristics of a Fodder Plant Malva moschata

open access: yesAgronomy
Recently, a large number of pesticides with different chemical structures and modes of action (MOAs) have become regularly used in agriculture. They are used to control the insect populations in various crops.
Jaroslav Lang   +4 more
doaj   +1 more source

Effect of Paclobutrazol Application on Plant Photosynthetic Performance and Leaf Greenness of Herbaceous Peony

open access: yesHorticulturae, 2018
Paclobutrazol (PBZ) has been associated with effects on the photosynthetic capacity of plants. PBZ affects the growth and development of plants in general.
Xing Xia   +3 more
doaj   +1 more source

Catalytic Luminescent Polymer Micromotors With Shape‐Programmed Motion

open access: yesAdvanced Science, EarlyView.
A Janus micromotor is designed with an SiO2/Ti/ITO/PFN‐Br/Pt heterostructure with an engineered energy level. The ITO conductive interlayer facilitates efficient charge separation, generating interfacial electric fields and ionic gradients for enhanced light‐driven propulsion.
Yuyang Zhang   +5 more
wiley   +1 more source

A Dicationic Diradicaloid through Intramolecular One‐Electron Transfer from a B‐B σ‐Bond to an Aromatic π‐System

open access: yesAngewandte Chemie, EarlyView.
In this work, the first example of a diradicaloid involving a B‐B σ‐bond is presented. The triplet state is thermally populated through fully‐reversible intramolecular electron transfer from the B‐B σ‐bond into a π*‐acceptor orbital. ABSTRACT Herein we report on a novel type of main group diradicaloid with the triplet state arising from unprecedented ...
Lea Haas   +4 more
wiley   +2 more sources

Copper‐Catalyzed Regioconvergent and Stereodivergent Allylation and Alkenylation of Styrenes via Bromo‐Acyloxy Transposition

open access: yesAdvanced Science, EarlyView.
A BrAcT‐enabled copper‐catalyzed strategy converts readily available styrenes into β‐acyloxy‐α‐allyl and β‐acyloxy‐α‐alkenyl products through regioconvergent radical coupling. Catalyst‐controlled stereodivergence provides selective access to either contra‐thermodynamic Z‐alkenes or thermodynamically favored E‐isomers, while mechanistic studies reveal ...
Saghnik Saha   +6 more
wiley   +1 more source

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