Now showing items 1-10 of 48
Purification and properties of an oxygen-evolving reaction center complex from photosystem II membranes : A simple procedure utilizing a non-ionic detergent and elevated ionic strength
(Elsevier, 1986-03-03)
A method is reported for the isolation of a highly resolved oxygen-evolving photosystem II reaction center preparation. This preparation can be separated from the more complex photosystem II membranes isolated by the ...
Visual detection by the rod system in goldfish of different sizes
(Elsevier, 1988)
New rods are continually generated and inserted across the entire differentiated retina in juvenile and adult goldfish; no other retinal cells share this characteristic. How does the preferential addition of rods affect ...
The mechanism of amine inhibition of the photosynthetic oxygen evolving complex : Amines displace functional chloride from a ligand site on manganese
(Elsevier, 1983-10-17)
Amines inhibit photosynthetic oxygen evolution by binding to manganese in the oxygen evolving complex. This inhibition is more effective if chloride is absent. Steady-state kinetic analyses show that ammonia and chloride ...
Chloroplast DNA sequences integrated into an intron of a tomato nuclear gene
(Springer-Verlag, 1988-12)
DNA sequences capable of hybridizing with chloroplast DNA have previously been reported to exist in the nuclear genome of higher plants. Here we show that the third intron of the cultivated tomato ( Lycopersicon esculentum ...
Monovalent cations (Na+, K+, Cs+) inhibit calcium activation of photosynthetic oxygen evolution
(Elsevier, 1989-02-13)
In the absence of the 17 and 23 kDa water-soluble polypeptides, the oxygen-evolving complex of photosystem II requires addition of Cl- and Ca2+ to maximize rates of oxygen evolution activity. We have found that monovalent ...
Dil and DiO: versatile fluorescent dyes for neuronal labelling and pathway tracing
(Elsevier, 1989)
The fluorescent carbocyanine dyes dil and diO have an extensive history of use in cell biology, but their use as neuronal tracers is relatively recent. We found in 1985 that these molecules were excellent retrograde and ...
On the origin of light-induced changes in the proton magnetic relaxation rate of chloroplast thylakoid membrane suspensions
(Elsevier, 1981-03)
The spin-lattice relaxation rate of solvent protons in suspensions of chloroplast thylakoid membranes undergoes a large transient depression following illumination in white light. This change appears to require the presence ...
NMR relaxivity changes in chloroplast suspensions. Effects of NH2OH and of treatments altering the redox state of the photosynthetic electron transport chain
(Elsevier, 1980-12-03)
Treatments (illumination, chemical oxidation or reduction) which are potentially capable of producing paramagnetic centers in chloroplast thylakoid membranes do not produce enhancements of the proton magnetic relaxivities ...
Cytodifferentiation of photoreceptors in larval goldfish: Delayed maturation of rods
(Wiley Subscription Services, Inc., A Wiley Company, 1985-06-01)
This study describes the differentiation of photoreceptors in larval goldfish retina. The earliest photoreceptors to differentiate were cones; 3 H-fucose labeled cone but not rod outer segments in larval as well as adult ...
Topology of NH2OH-induced Mn(II) release from chloroplast thylakoid membranes
(Elsevier, 1981-07-13)
Permeant and impermeant metal ion chelators have been used in conjunction with NMR relaxation time measurements (T1) of solvent protons to probe the membrane topology of the Mn(II) released from the water-oxidizing center ...