Clarence B. Carson

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The Viviparous-1 (Vp1) gene of maize is specifically required for expression of the maturation program in seed development. We show that Vp1 encodes a 73,335 dalton protein with no detectable homology to known proteins. An acidic transcriptional activation sequence was identified by fusion to the GAL4 DNA-binding domain. Expression of VP1 in maize(More)
The viviparous-1 (vp1) gene in maize controls multiple developmental responses associated with the maturation phase of seed formation. Most notably, mutant embryos have reduced sensitivity to the hormone abscisic acid, resulting in precocious germination, and blocked anthocyanin synthesis in aleurone and embryo tissues. The Vp1 locus was cloned by(More)
A series of vp1 alleles distinguish at least two classes of maturation-related genes that are regulated by the VP1 factor and abscisic acid (ABA). The intermediate vp1-c821708 and vp1-McW alleles have quiescent (non-viviparous) anthocyanin-deficient phenotypes while maintaining significant levels of maturation-specific gene expression in the developing(More)
Genomic clones, cDNA clones, and protein of the maize (Zea mays L.) Suc synthase1 (sus1) gene were isolated and sequenced. Termini (5' and 3') of the transcribed unit were identified. The SUS1 protein was purified from tissue culture cells as a phosphorylated protein. The overall structure of sus1 is virtually identical with that of the paralogous gene,(More)
The principle of effective broad-spectrum anthelmintic activity against human intestinal nematode infections has been demonstrated by the therapeutic results obtained with dithiazanine. In proper dosage, this polyvermicide is therapeutic for trichuriasis, strongyloidiasis, ascariasis and enterobiasis. The drug has only moderate anthelmintic activity against(More)
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