Now showing items 31-40 of 50
Evolutionary significance of inversions in legume chloroplast DNAs
(Springer-Verlag, 1988-07)
Cloned genes from tobacco, spinach, and pea were used as hybridization probes to localize 36 protein genes on the chloroplast chromosomes of four legumes — mung bean, common bean, soybean, and pea. The first three chloroplast ...
Optimal foraging: food patch depletion by ruddy ducks
(Springer-Verlag, 1988-06)
I studied the foraging behavior of ruddy ducks ( Oxyura jamaicensis ) feeding on patchily distributed prey in a large (5-m long, 2-m wide, and up to 2-m deep) aquarium. The substrate consisted of a 4x4 array of wooden trays ...
Isolation and sequence of a tomato cDNA clone encoding subunit II of the photosystem I reaction center
(Kluwer Academic Publishers; Springer Science+Business Media, 1988-09)
We report here the isolation and nucleotide sequence of a cDNA clone encoding a phtosystem I polypeptide that is recognized by a polyclonal antibody prepared against subunit II of the photosystem I reaction center. The ...
The long-term effects of repeated amphetamine treatment in vivo on amphetamine, KCl and electrical stimulation evoked striatal dopamine release in vitro
(Elsevier, 1988)
Exposure to amphetamine (AMPH) in vivo produces an enduring enhancement (`sensitization') in AMPH-stimulated striatal DA release in vitro. Experiments were conducted to determine whether striatal DA release evoked by ...
Ecological resistance to the invasion of a freshwater clam, Corbicula fluminea : fish predation effects
(Springer-Verlag, 1988-12)
Fish predation is shown to have a twenty nine fold effect on the abundance of the invasive freshwater clam, Corbicula fluminea , in a Texas reservoir. This predation has prevented the clam from establishing the high densities ...
Biphasic action of retinoids on gonadotropin receptor induction in rat granulosa cells in vitro
(Elsevier, 1988)
Vitamin A (retinol) has been held to be uniquely essential for normal vision (1) and reproduction (2), all other functions being served by its metabolite retinoic acid (3-6). The inability of retinoic acid to maintain ...
Monokine-induced gene expression of a human endothelial cell-derived neutrophil chemotactic factor
(Elsevier, 1988-11-15)
Monokines have been increasingly recognized as communication signals that interact with both immune and non-immune cells during inflammation. Specifically, interleukin-1alpha (IL-lalpha), interleukin-1beta (IL-1beta) and ...
Location, identity, amount and serial entry of chloroplast DNA sequences in crucifer mitochondrial DNAs
(Springer-Verlag, 1988-11)
Southern blot hybridization techniques were used to examine the chloroplast DNA (cpDNA) sequences present in the mitochondrial DNAs (mtDNAs) of two Brassica species ( B. campestris and B. hirta ), two closely related species ...
Effects of Rifampicin resistant rpoB mutations on antitermination and interaction with nusA in Escherichia coli
(Elsevier, 1988-11-20)
Rifampicin resistant (Rifr mutations map in the rpoB gene encoding the [beta] subunit of Escherichia coli RNA polymerase. We have used our collection of 17 sequenced Rifr mutations to investigate the involvement of E. coli ...
Transforming growth factor beta activates protein kinase C in microvessels isolated from immature rat brain
(Elsevier, 1988-01-29)
We investigated the activation of protein kinase C in microvessels isolated from rat brain. We found that unstimulated kinase activity in microvessels from immature animals is soluble while that from adults is particulate. ...