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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

Lateral branching studies in the ramosus mutants of pea /

Morris, Suzanne January 2001 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
2

Some carboxylic esterases of the pea (Pisum sativum L.)

Norgaard, Marida Jane 11 August 1967 (has links)
Although esterases have been reported in peas, their properties have not been studied. The purpose of this investigation was to determine the substrate and inhibitor specificity of the esterases present in a water extract of lyophilized peas, and to determine if pea esterases could be classified according to the criteria established for animal esterases. Esterase activity was determined manometrically using the Gilson differential respirometer. The effect of pH on esterase activity was determined using phenyl acetate, phenyl propionate, tripropionin, and tributyrin as substrates. The pH optima appeared to lie between 6.9 and 7.2, and pH 7 was selected for use in this study. The acetyl, propionyl, and n-butyryl esters of phenol, 2-naphthol-6-SO₃ Na and glycerol were hydrolyzed by the enzyme extract. Long chain esters of 2-naphthol-6-SO₃Na, however, were not hydrolyzed. Cholinesterases and lipases did not appear to be present in the extract since only a very small amount of activity was observed when the choline esters and triolein were used as substrates. Using phenyl propionate and phenyl butyrate as substrates, esterase activity, based on the original extract, decreased with dilution. Later work revealed that the esterase(s) which hydrolyzed phenyl propionate were inhibited by heavy metal ions and activated by metal complexing agents. Hence, a possible explanation for the decrease in activity was inhibition by metal ions in the distilled water. The effects of the inhibitors parathion, tetraethyl pyrophosphate, and diisopropyl phosphorofluoridate at concentrations ranging from 10⁻¹ M to 10⁻¹⁰ M on esterase activity were determined. The data suggested the presence of as many as six esterases in the aqueous extract of peas, three for which the evidence was quite conclusive. On the basis of their inhibition by organophosphorus compounds, all but one of the esterases appeared to be of the B type. Physostigmine sulfate (10⁻⁵ M) had no effect on esterase activity with the nine substrates used indicating that the activity was not due to cholinesterases. At least one of the esterases which hydrolyzed each of the substrates was sensitive to 10⁻³ M p-chloromercuribenzoic acid sodium salt suggesting the importance of sulfhydryl groups for enzyme activity. / Graduation date: 1968
3

Study of pre-emergence rotting in wrinkled, seeded peas

Flentje, Noel Thomas. January 1900 (has links) (PDF)
Thesis (M.Sc.) -- University of Adelaide, Waite Agricultural Research Institute, 1948. / Typewr. Includes bibliographical references.
4

A correlation of the methods of evaluating the quality and yield of fresh and processed peas

Kuesel, D. C. 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 [111]-119).
5

Inheritance studies in Pisum sativum L.

Johnson, Kenneth Wadsworth, January 1957 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
6

Effect of vacuum-drying, freeze-drying, and storage environment on the viability of pea pollen [I.] II. Effect of boron, sucrose, and agar on the germination of pea pollen.

Layne, Richard Evelyn Claude, January 1963 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1963. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
7

Sampling for yield components in peas (Pisum sativum)

Chi, Pi-Yeong, January 1970 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1970. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
8

A study of the origin and developmental morphology of root nodules of Pisum sativum L. and of the responses of pea roots to the application of certain growth substances

Bond, Lora, January 1945 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1945. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 54-58).
9

Investigations into the in vitro translation and aphid transmission of pea enation mosaic virus

Gabriel, Clifford J. January 1983 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1983. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 81-90).
10

Preparations from peas with high kinetin-like activity

Helgeson, J. P. January 1964 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Vita. Abstracted in Dissertation abstracts, v. 25 (1964) no. 6, p. 3221-1. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.

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