The bacterial flora in and outside the rhizosphere of wheat, grass, sugar beet and potato on a light sandy loam
Aandacht voor de rol van mycorrhiza in verband met het afsterven van bossen en het gebruik van mycorrhiza als middel tegen beschadiging van bomen door zure depositie en luchtverontreiniging
Published in The New phytologist
Mycorrhizal infection of two-year-old seedlings of Betula pendula Roth, and Acer pseudoplatanus L. was examined in a pot experiment, in relation to several soil variables (pH, organic matter, N, P, K, Ca, Fe, and phosphatase activity), host uptake of 32 P, and plant performance (height and weight), in 25 Cumbrian soils from natural and semi-natural...
Published in The New phytologist
Chestnut (Castanea sativa Mill.) was cloned in vitro. Mycorrhizal syntheses were obtained between cloned plants and Paxillus involutus (Batsch.) Fr. In the case studied, MNM nutrient solution did not favour the development of the host plants. The composition of an original nutrient solution was determined for the mycorrhizal infection of chestnut i...
In this thesis in vitro growth of mycelium of Cantharellus cibarius Fr. is described as the first step in the domestication of this edible mycorrhizal mushroom. A collection of pure cultures was obtained and the requirements for vegetative growth were determined.IsolationA culture collection of 33 strains was obtained by isolation from spores or by...
Published in The New phytologist
Infected roots of Ophrys lutea present nymerous peroxisome profiles identified by diaminobenzidine (DAB) staining. The presence of uricase in these peroxisomes could also be recognized cytochemically. The activities of catalase and uricase, assayed using a crude fraction of peroxisomes, reached 0·8 μkat min-1 protein-1 and 1·73 nakat min-1 mg prote...
The carpophores of mycorrhizal fungi have declined drastically during this century in the Netherlands and in other European countries. In contrast, saprophytic and pathogenic fungi did not show a significant change. In this thesis, the possible causes of the decline of mycorrhizal mycoflora have been examined. The hypothesis was put forward that th...