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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 104196
Title Untersuchungen ueber den Pflanzenparasiten Verticillium albo - atrum Reinke et Berth.
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door G. van den Ende
Author(s) Ende, G. van den
Publisher Amsterdam : North-Holland
Publication year 1958
Description XII, 75 p ill
Series title Mededeling / Phytopathologisch Laboratorium "Willie Commelin Scholten" (21)
Notes Ook verschenen in Acta Botanica Neerlandica, 7(1958)5  show all notes
Proefschrift Wageningen
Tutors Kerling, Prof. Dr. L.C.P.
Graduation date 1958-12-12
Dissertation no. 250
Author abstract show abstract
Among 70 Verticillium strains isolated from different hosts throughout the Netherlands, only 2 had the bundled dark hyphae described by Reinke and Berthold (1879) as characteristic of V.albo-atrum Reinke & Berth. This species was morphologically the same as V. dahliae Klebahn. The name V.albo-atrum had priority.

Strains with loose dark hyphae (d.m. type) were less resistant to warmth (35øC) than those with microsclerotia (mscl. type). On artificial media all strains produced toxins, specific for each strain but not correlated with type or pathogenicity. The fungus spreads through the plant's vessels as spores or mycelium. The physiological range confirmed that there was no clear distinction between the two species but demonstrated a difference between mycelial and microsclerotial types. Host range was not limited (contrast Nelson, 1950; Isaac, 1957). Culture on tomato changed the virulence.

Both types could spread in sterile soil between roots of antirrhinums only as hyphae. After 4 years in the soil only the mscl. type was slightly infective.

Microsclerotia were assumed to be merely storage organs because they did not germinate, even with root secretions.

After an infection resistant crops should be planted and possible carrier weeds eradicated. Use of resistant varieties was difficult because of differences in pathogenicity of Verticillium strains but chemical control was inadequate.

Online full textINTERNET
On paper FORUM ; STACKS ; 299B55
FORUM ; STACKS ; NN08202,250
FORUM ; STACKS ; NN05198,07,5
Keyword(s) (cab) plant pathogenic fungi / deuteromycotina / moniliaceae
Categories Plant Pathogenic Fungi
Publication type PhD thesis
Language German
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