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Pope, C.R., 1976. Some effects of adverse conditions on two terrestrial algae in relation to china clay substrates. PhD, Nottingham Trent University.
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Abstract
Aspects of the ecology and physiology of Zygogonium ericetorum and Hormidium flaccidum on china clay wastes are investigated and consideration is given to the suitability of china clay sandtips as a substrate for plant growth. Particular attention is paid to the sequence of plant colonisation and the role of the respective algae in soil formation. Effects of light, temperature, humidity and herbivores are considered.
Effects of the city Plymouth as an air pollution source, on the algal growth and colonisation of the Dartmoor china clay tips are discussed. In the laboratory, sulphur dioxide solutions of 20, 30 and 50ppm, at low pH, gave rise to an alteration in the growth pattern of H. flaccidum cultures resulting from irregular cell division and a marked increase in cell size. Electron microscopy studies of such cells showed the presence of vesicles within the chloroplast, probably indicative of an impairement of photosynthetic activity.
A structure resembling a "quasi-crystalline lamellar lattice" is described from electron micrographs of untreated material of Z. ericetorum.
The presence on Z. ericetorum of a fungal pathogen of the genus Chloridium is reported.
| Item Type: | Thesis | ||||
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| Creators: | Pope, C.R. | ||||
| Date: | 1976 | ||||
| ISBN: | 9781369324839 | ||||
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| Divisions: | Schools > School of Science and Technology | ||||
| Record created by: | Linda Sullivan | ||||
| Date Added: | 24 Jun 2021 10:43 | ||||
| Last Modified: | 18 Oct 2023 15:46 | ||||
| URI: | https://irep.ntu.ac.uk/id/eprint/43201 |
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