Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 525398
Title Onderzoekingen over Colletotrichum lindemuthianum (Sac. et Magn.) Bri. et Cav. en Gloeosporium fructigenum Berk. forma Hollandica nova forma
Author(s) Muller, H.R.A.
Source University. Promotor(en): H.M. Quanjer. - Wageningen : Veenman - 94
Publication type Dissertation, internally prepared
Publication year 1927
Keyword(s) colletotrichum lindemuthianum - plantenziekteverwekkende schimmels - melanconiales - glomerella cingulata - deuteromycotina - plant pathogenic fungi
Categories Plant Pathogenic Fungi
Abstract From diseased pods of Phaseolus vulgaris, 4 strains were isolated of Colletotrichum lindemuthianum: Z I and Z II from Zeeland; E from Enkhuizen; W from Westland. The strains differed from the American strainsβandγ. Tests on bean varieties used by Leach suggested that Z strains were related to form VIII of Leach and strains E and W were identical with forms IV and V. The Dutch strains differed in both severity and manner of attack on test varieties of bean, and in lethal and optimum temperatures. The fungus overwintered in the soil and could survive severe cold, -15° or -20 °C, for 10 days. Especially in light, cultures at least 2.5 months old produced perithecium-like bodies containing structures resembling asci.
From diseased pods of P. multiflorus growing under apple-trees, a strain (K) was isolated and identified as Gloeosporium fructigenum because it attacked apples but was only mildly pathogenic on a few varieties of P. vulgaris. It was named f. hollandica because it was distinct from the forms germanica and americana. Passage of K through apple or tomato increased its virulence to them, while passage through P. vulgaris decreased virulence to fruit and increased that to bean. After adaptation to apple, properties of strain K on tomato was the same as C. lindemuthianum.
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