R
Roy O. Morris
Researcher at University of Missouri
Publications - 53
Citations - 2596
Roy O. Morris is an academic researcher from University of Missouri. The author has contributed to research in topics: Agrobacterium tumefaciens & Zeatin. The author has an hindex of 27, co-authored 53 publications receiving 2537 citations. Previous affiliations of Roy O. Morris include Oregon State University.
Papers
More filters
Journal ArticleDOI
Cytokinin/auxin balance in crown gall tumors is regulated by specific loci in the T-DNA.
D. E. Akiyoshi,Roy O. Morris,R. Hinz,Barbara Sue Mischke,T. Kosuge,David J. Garfinkel,Milton P. Gordon,Eugene W. Nester +7 more
TL;DR: The evidence strongly suggests that tumor phytohormone levels are determined by genes in the T-DNA.
Journal ArticleDOI
Molecular and Biochemical Characterization of a Cytokinin Oxidase from Maize
Kristin D. Bilyeu,Jean L. Cole,James G. Laskey,Wayne R. Riekhof,Thomas J. Esparza,Michelle Kramer,Roy O. Morris +6 more
TL;DR: Details of the genomic organization of the recently isolated maize cytokinin oxidase gene (ckx1) and some of its Arabidopsis homologs are presented and expression of the oxidase in maize tissues is described.
Journal ArticleDOI
Isolation of a gene encoding a glycosylated cytokinin oxidase from maize.
TL;DR: The major cytokinin oxidase in immature maize kernels was purified to homogeneity and identified as ckx1, a protein of approximately 57 kDa that possesses a signal peptide, eight consensus N-glycosylation sequences and a consensus FAD binding sequence.
Journal ArticleDOI
tRNA Is the Source of Low-Level trans-Zeatin Production in Methylobacterium spp.
TL;DR: In this article, the trans-Zeatin was identified as the trans isomer by HPLC and by a radioimmunoassay in which monoclonal antibodies specific for trans-hydroxylated cytokinins were used.
Journal Article
Changes in cytokinins and cytokinin oxidase activity in developing maize kernels and the effects of exogenous cytokinin on kernel development
TL;DR: The differences in cytokinin oxidase activity between kernels which are maturing normally and those which will abort was so pronounced that cytokinIn oxidase levels can be considered an indicator of normal kernel development.