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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Some experiments with auxin a and other growth factors

Willard, John Hilton William January 1938 (has links)
[No abstract available] / Science, Faculty of / Botany, Department of / Graduate
2

Phosphate control of root system architecture in Arabidopsis

Ribrioux, Sebastien January 2001 (has links)
No description available.
3

Characterisation of two morphogenesis mutants in Arabidopsis thaliana

Souter, Martin Andrew January 2002 (has links)
In this thesis is described the characterisation of two morphogenesis mutants of Arabidopsis thaliana, with the aim of furthering our understanding of signalling in development. A thorough phenotypic analysis of both mutants is presented, with particular attention paid to the seedling root. The results of genetic analysis of hydra2 are also presented. The hydra mutants are characterised by a pleiotropic phenotype, with defective embryonic and seedling cell patterning, morphogenesis and root growth. The HYDRA1 gene encodes a A8-A7 sterol isomerase, while HYDRA2 encodes a sterol C14 reductase, previously identified as the FACKEL gene product. Seedlings mutant for each gene are similarly defective in the concentrations of the three major Arabidopsis sterols. Reporter gene analysis showed mis-expression of the hormonally-regulated DR5, IAA2 and ACSl promoters and of the epidermal cell file-specific GL2 promoter in the mutants. The mutants also exhibit enhanced responses to auxin. The phenotypes can be partially rescued by inhibition of auxin and ethylene signalling, but not by exogenous brassinosteroids. Evidence of abnormal activity of hormone-related membrane-bounds proteins and of altered membrane permeability to auxin is presented. A model in which correct sterol profiles are required for regulated auxin and ethylene signalling through effects on membrane function is proposed.
4

Poutací komplex exocyst a polarizovaný transport auxinu / The secretory vesicles tethering complex exocyst and the auxin transport polarization

Janková Drdová, Edita January 2011 (has links)
The polarization of exocytosis in yeast and animals is assisted by the exocyst - an octameric vesicle tethering complex and an effector of Rab and Rho GTPases. Recently, the exocyst was described as a functional complex involved in morphogenesis also in plants. Hála et al. (2008) described involvement of exocyst complex in pollen tube growth and hypocotyls elongation in dark grown seedlings, Fendrych et al. (2010) uncovered key role of exocyst in cell plate formation, Kulich et al. (2010) emphasized the participation of exocyst in seed coat generation and Pečenková et al. (2011) described the contribution of exocyst subunits in plant defense towards the pathogens. All these processes are intimately linked to polarized secretion. Here we show involvement of exocyst in auxin efflux carriers PINs recycling. Using direct auxin transport measurement and GFP-tagged proteins, we showed that the exocyst is involved in recycling and polarization of PIN proteins and polar auxin transport regulation. Rootward polar auxin transport is compromised in loss-of-function mutants in exocyst subunits EXO70A1. On the cellular level we have detected small portion of PIN2:GFP in the "BFA-like" FM4-64 labelled compartments distinct from VHAa1 labeled endosoms. Moreover recycling of PIN1 and PIN2 is retarded in roots of...
5

The production of auxin in plants

Sheldrake, Rupert January 1968 (has links)
No description available.
6

Auxin precursors in corn seed

Baker, John Bee, January 1955 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves [47]-52).
7

The role of zinc in auxin synthesis in the tomato plant

Tsʻui, Chêng, January 1900 (has links)
Thesis--University of Michigan. / "Contribution from the Department of Botany, University of Michigan, no. 850." "Reprinted from the American journal of botany, vol. 35, no. 3 ... March, 1948."
8

The release of auxin from isolated leaf proteins of spinach by enzymes,

Wildman, Sam Goodnow, Gordon, Solon A. January 1900 (has links)
Thesis (PH. D.)--University of Michigan, 1942. / Caption title. Thesis note on label mounted on p. [217]. "Reprinted from the Proceedings of the National Academy of Sciences, vol. 28, no. 6 ... June, 1942." Bibliography: p. 228.
9

Effects of auxin and other factors on the elongation of roots /

McBride, Rebecca Louise January 1977 (has links)
No description available.
10

Studies on the role of protons in the control of cell elongation by auxin /

Vesper, Mary Jo January 1978 (has links)
No description available.

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