Acta Botanica Neerlandica

Herman van den Ende

Hugo de Vries and the plasmolysis method

胡戈·德·弗里斯与质壁分离法

Marga Coesèl

Education through the enjoyment of nature : Hugo de Vries and the popularization of biology

通过自然之乐的教育：雨果·德·弗里斯与生物学的普及

H. Hooghiemstra

Development of the Andean and Amazonian ecosystems since the Late Miocene

晚中新世以来安第斯和亚马逊生态系统的演化

Hugo de Vries was born in Haarlem on 16 February, 1848. He came from a wealthy academic family and grew up in a cultural and scientific environment. Among his ancestors and relatives we find several that acquired a place in Dutch history by their activities in the realms of art and sciences. Hugo’s father, Gerrit de Vries, had settled in Haarlem as an attorney in 1840. In 1850 Gerrit became a member of the Provinciale Staten (Provincial Council) of North-Holland, some years later of the Gedeputeerde Staten (Deputive Council) of that province. In 1862 he was appointed as a member of the Raad van State (State Advisory Council) in The Hague, a position he held untill his retirement. From 1872 to 1874, moreover, he was Minister of Justice. Hugo’s mother was a daughter of the Leyden professor of archaeology Caspar Reuvens. As a child, De Vries became interested in nature. After school hours and during holidays he made long walks through the dunes and meadows, collecting plants and trying to find their names. In 1860, at the age of 12, he brought in a herbarium of 100 plants for an exhibition organized by the Hollandsche Maatschappij van Landbouw (Dutch Agricultural Society). When he reached the age of 15 De Vries also began to make microscopic observations. In 1866 he entered the University of Leyden to read philosophia naturalis (natural philosophy), with botany as his principal subject. His parents were not pleased with their son’s choice, in view of the limited prospects the discipline offered. At that time, the only job that was open to a professional botanist was a teacher of natural history at secondary school. Reluctantly they conceded, but when they saw how eagerly and dilligently young Hugo studied, they understood that their son had made the right decision.

Erik Zevenhuizen

Hugo de Vries: life and work

雨果·德弗里斯：生平与工作

The occurrence of a species along an environmental gradient can be considered as the product of its physiological requirements and competitive interactions with other species. One may, therefore, expect that this realized habitat differs between areas when a species has to co-exist with different species. To test this hypothesis, we compared the responses of wetland plants to hydrological conditions in two European lowland river valleys: the Drentse A valley (The Netherlands) and the Peene valley (eastern Germany). We used mean water level and wafer level amplitude as hydrological parameters to analyse differentiation in realized habitats within species. Most species occurred in slightly wetter conditions, with higher fluctuations in the German site but with narrower tolerances for these parameters. We suggest that this may result from a higher competition intensity for light, possibly caused by a larger local species pool and/or presence of more dominant species with a high competitive ability. The consequences for practical applications-such as parameter estimation fbr predictive models-are discussed.

W Kotowski

R Van Diggelen

J Kleinke

Behaviour of wetland plant species along a moisture gradient in two geographically distant areas

Publication Information	Publisher: Georg Thieme Verlag，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 1988，Proportion of original research papers: ，Self Citation Rate:， Gold OA Rate:

Acta Botanica Neerlandica

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Hugo de Vries and the plasmolysis method

Education through the enjoyment of nature : Hugo de Vries and the popularization of biology

Development of the Andean and Amazonian ecosystems since the Late Miocene

Hugo de Vries: life and work

Behaviour of wetland plant species along a moisture gradient in two geographically distant areas

The role of ABC-transporters in pathogenesis of Mycosphaerella graminicola

The role of ABC-transporters in pathogenesis of Mycosphaerella graminicola

The role of ABC-transporters in pathogenesis of Mycosphaerella graminicola

The role of ABC-transporters in pathogenesis of Mycosphaerella graminicola

The role of ABC-transporters in pathogenesis of Mycosphaerella graminicola