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Library Catalogue

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    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104394
Title De invloed van auxine, tryptofaan en enige anorganische zouten op de infectie van Nicotiana glutinosa met tabaksmozaiekvirus
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door Liem Annie Swat Nio
Author(s) Liem, A.S.N.
Publisher Wageningen : Pudoc
Publication year 1963
Description 46 p ill
Notes Proefschrift Wageningen
Ook verschenen als handelsuitgave
Tutors Want, Prof. Dr. Ir. J.P.H. van der ; Raalte, Prof. Dr. M.H. van
Graduation date 1963-05-03
Dissertation no. 345
Author abstract show abstract
The number of necrotic spots arising on leaves of Nicotiana glutinosa after inoculation with tobacco mosaic virus was less than in controls without additives, if the water in which the leaves floated hadβ-indoleacetic acid (IAA),α-naphthylacetic acid (NAA) or 2,4-dichlorophenoxyacetic acid (2,4-D) in correct concentrations, added 16 h before (IAA also after) inoculation. This reaction occurred always in weak light but not always in strong light. D-tryptophan, but not DL and L isomers, caused a similar effect in only half the tests. In vitro IAA did not inactivate the virus. IAA, NAA and 2,4-D all decreased the osmotic pressure of the leaf sap of plants in weak light. IAA also decreased the conductivity of the sap of floating leaves by exosmosis. Leaves of plants in strong light had higher osmotic pressure, but if both leaf types were floated on water, the difference in osmotic pressure disappeared. Yet water absorption seemed not to be directly related to the decrease in osmotic pressure with IAA.

A mixture of Ca (NO 3 ) 2 , KNO 3 and MgS0 4 increased osmotic pressure and number of necrotic spots, although less with IAA than without it. Ca 2+increased and K +and Mg 2+decreased number of spots. Perhaps phosphate-buffer enhanced auxin production, so masking the influence of the applied IAA. Probably IAA stimulated synthesis of enzymes and specific nucleic acid, so using up compounds needed for virus synthesis.

Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,345
FORUM ; STACKS ; NN08200,345
Keyword(s) (cab) tobacco mosaic virus / auxins / nicotiana glutinosa / tryptophan / inorganic salts
Categories Plant Viruses / Plant Growth Regulators
Publication type PhD thesis
Language Dutch; Flemish
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