Index Catalog // ScholarsArchive@OSU

Origin and differentiation of the seed cone of Pseudotsuga menziesii (Mirbel) Franco

Creator:: Owens, John N.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF John Neal Owens for the Ph.D

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

Creator:: Warman, Cedar D.
Abstract:: Plant sexual reproduction requires a broad array of molecular mechanisms to proceed successfully. Some of these mechanisms are well-studied, but our knowledge of them as a whole is fundamentally incomplete. Pollen tube growth is a key part of this process, facilitating the delivery of the sperm cells to the female...
Resource Type:: Dissertation
Full Text:: approved: ______________________________________________________ John E. Fowler Plant sexual

Characterization of the transition to the progamic phase in Zea mays pollen

Creator:: Smyth, Johanna C.
Abstract:: The transition of mature pollen to the progamic phase represents an important step in the regulation of plant sexual reproduction. The progamic phase encompasses the initiation of pollen tube germination, growth of the pollen tube through the stigma (the silk in maize) and concludes with fertilization of the female gametophyte....
Resource Type:: Dissertation
Full Text:: Abstract approved: ______________________________________________________ John E. Fowler

Contracting nucleolar vacuoles in somatic tobacco cells growing in microcultures

Creator:: Johnson, John Morris
Abstract:: Contracting nucleolar vacuoles are a general and consistent feature of somatic tobacco cells growing in microcultures. Nucleolar vacuoles were studied in cells from callus tissues of two single-cell clones, H-196 and H-239, of hybrid tobacco (Nicotiana tabacum X N. glutinosa). Vacuoles periodically contracted either completely or incompletely, apparently releasing a...
Resource Type:: Dissertation
Full Text:: growing in microcultures AN ABSTRACT OF THE THESIS OF John Morris Johnson for the Ph. D. in Botany

Hyperspectral reflectance data of wheat in situ and lab scans infected with soilborne wheat mosaic virus

Creator:: Haagsma, Marja, Hagerty, Christina H., Kroese, Duncan R., and Jachens, Elizabeth R.
Abstract:: Hyperspectral images were taken in a lab setting from wheat leaves and in situ from agricultural wheat fields and disease nursery. The goal of this research was to find infection of soilborne wheat mosaic virus in wheat for early detection using digital imagery, i.e., either hyperspectral or multispectral.
Resource Type:: Dataset

The Gac regulon of Pseudomonas fluorescens SBW25

Creator:: Cheng, Xu, de Bruijn, Irene, van der Voort, Menno, Loper, Joyce E., and Raaijmakers, Jos M.
Abstract:: Transcriptome analysis of Pseudomonas fluorescensSBW25 showed that 702 genes were differentially regulated in a gacS::Tn5 mutant, with 300 and 402 genes up- and downregulated respectively. Similar to the Gac regulon of other Pseudomonas species, genes involved in motility, biofilm formation, siderophore biosynthesis and oxidative stress were differentially regulated in the...
Resource Type:: Article
Full Text:: doi:10.1111/1758-2229.12061 © 2013 John Wiley & Sons Ltd and Society for Applied Microbiology

Identification and characterization of seven ROP GTPases in Zea mays

Creator:: Christensen, Todd M.
Abstract:: Regulation of cell division and expansion are critical for plant development. The mechanisms that control these processes are not clearly understood in higher plants. In other eukaryotic models it has been shown that the highly conserved Rho family GTPases play a crucial role in these mechanisms. One distinct subset of...
Resource Type:: Masters Thesis
Full Text:: : identification and Characterization of Seven ROP GTPases in the monocot Zea ma vs. Abstract approved: John

Production and characterization of antifungal compounds produced by tomato plants inoculated with Fusarium oxysporum f. sp. lycopersici

Creator:: Danko, Stephen John
Abstract:: The fungitoxicity of acetone extracts from the xylem of Fusarium wilt disease resistant tomato plants (cv. Jefferson) inoculated with Fusarium oxysporum f. sp. lycopersici was greatly influenced by environmental factors. Extracts obtained from plants 1 h after watering were 4-times more toxic than extracts from plants subjected to water stress...
Resource Type:: Dissertation
Full Text:: THESIS OF Stephen John Danko for the degree of Doctor of Philosophy in Botany and Plant Pathology

Molecular phylogenetic analyses of Riccia and Marchantiales

Creator:: Wheeler, John A. (John Allen)
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF John A. Wheeler for the degree of Doctor of Philosophy in

The effects of abscisic acid on gene expression during embryogenesis in wheat

Creator:: Williamson, John D. (John David), 1948-
Resource Type:: Dissertation
Full Text:: Embryogenesis in Wheat AN ABSTRACT OF THE THESIS OF John D. Williamson for the degree of Doctor of Philosophy

ScholarsArchive@OSU

Origin and differentiation of the seed cone of Pseudotsuga menziesii (Mirbel) Franco

Seeing Genes: Multiscale Phenotyping Reveals Gene Functions in Maize Pollen

Characterization of the transition to the progamic phase in Zea mays pollen

Contracting nucleolar vacuoles in somatic tobacco cells growing in microcultures

Hyperspectral reflectance data of wheat in situ and lab scans infected with soilborne wheat mosaic virus

The Gac regulon of Pseudomonas fluorescens SBW25

Identification and characterization of seven ROP GTPases in Zea mays

Production and characterization of antifungal compounds produced by tomato plants inoculated with Fusarium oxysporum f. sp. lycopersici

Molecular phylogenetic analyses of Riccia and Marchantiales

The effects of abscisic acid on gene expression during embryogenesis in wheat

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