J. Grula

Publications34
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Citations1,066
Highly Influential Citations64
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Herbicide-resistant Acala and Coker cottons transformed with a native gene encoding mutant forms of acetohydroxyacid synthase
TLDR
Herbicide-resistant transgenic cotton plants carrying mutant forms of a native acetohydroxyacid synthase (AHAS) gene have been obtained by Agrobacterium and biolistic transformation, and transgenic Acala plants resistant to imidazolinone herbicides were obtained.
Selection and characterization of mutant cotton (Gossypium hirsutum L.) cell lines resistant to sulfonylurea and imidazolinone herbicides
TLDR
Nucleotide sequence analysis of clones derived from two different colonies revealed the presence of point mutations at the codon for amino acid Trp 563 in either one of two homeologous mutant genes, A5 (Trp -+ Cys) or Al9 (TrP -+ Ser), the first time the spontaneous occurrence of these particular substitutions has been reported in a plant acetohydroxyacid synthase.
Organ-specific transcripts of different size and abundance derive from the same pyruvate, orthophosphate dikinase gene in maize.
  • C. Glackin, J. Grula
  • Biology, Medicine
    Proceedings of the National Academy of Sciences…
  • 1 April 1990
TLDR
Results from cDNA library screens have confirmed that the root transcript is approximately 50-fold less abundant than the green leaf transcript, and restriction site and DNA sequence comparisons between PPDK genomic and leaf cDNA clones have revealed which gene encodes the isozyme involved in C4 photosynthesis.
Structure and expression of the maize gene encoding the phosphoenolpyruvate carboxylase isozyme involved in C4 photosynthesis
TLDR
The data suggest modern maize variaties have retained much of the genetic variation present in their ancestral forms, and accumulation of transcripts encoding the PEP carboxylase isozyme involved in C4 photosynthesis is quite high in several structures besides leaves, including inner leaf sheaths, tassels and husks.
Expression of maize phosphoenolpyruvate carboxylase in transgenic tobacco : effects on biochemistry and physiology.
TLDR
Biochemical analyses of transgenic tobacco plants indicated that the transgenic plants had significantly elevated levels of titratable acidity and malic acid, but these biochemical differences did not produce any significant physiological changes with respect to photosynthetic rate or CO(2) compensation point.
Genomic and cDNA clones for maize phosphoenolpyruvate carboxylase and pyruvate,orthophosphate dikinase: Expression of different gene-family members in leaves and roots.
TLDR
Information from these genomic clones and genome blots indicates that the P-ePrv carboxylase gene family has at least three members and the Prv,P(i) dikinase family at least two.
Characterization and expression of Metallothionein-like genes in cotton
We have characterized cotton (Gossypium hirsutum L.) genes encoding type 1 metallothionein-like proteins that are highly expressed in roots. Little or no expression of these genes was detected in…
SOME CHARACTERISTICS OF HYBRIDS DERIVED FROM THE SULFUR BUTTERFLIES, COLIAS EURYTHEME AND C. PHILODICE: PHENOTYPIC EFFECTS OF THE X‐CHROMOSOME
  • J. Grula, O. Taylor
  • Biology, Medicine
    Evolution; international journal of organic…
  • 1 July 1980
TLDR
In the course of this genetic analysis a large number of F1, F2, and backcross progeny were reared in the laboratory and some of their characteristics are described here.
Characterization and expression of chitinase and 1,3-β-glucanase genes in cotton
TLDR
Northern blot analyses showed that chitinase mRNA is induced in plants treated with ethaphon or salicylic acid, whereas the levels of 1,3-β-glucanase mRNA are relatively unaffected, and Southern blots of cotton genomic DNA and genomic clones indicated chit inase is encoded by a small gene family of which two members, Chi 2;1 and Chi 2 ;2, were characterized.
Aphrodisiac pheromones of the sulfur butterfliesColias eurytheme andC. Philodice (Lepidoptera, Pieridae)
Male wing compounds involved in maintaining reproductive isolation between the sulfur butterfliesColias eurytheme andC. philodice have been identified. MaleC. philodice produce threen-hexyl esters;…
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