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作者 Bagatto, Giuseppe
書名 Concentrations of minerals (copper, nickel, zinc, iron, manganese, magnesium, and calcium) in tissues of lowbush blueberry (Vaccinium angustifolium) and an insect gall induced by Hemadas nubilipennis (Hymenoptera: Pteromalidae) and its inhabitants in metal-contaminated and non-contaminated sites
國際標準書號 9780315764460
book jacket
說明 187 p
附註 Source: Dissertation Abstracts International, Volume: 54-02, Section: B, page: 0587
Thesis (Ph.D.)--Queen's University (Canada), 1992
The accumulation of copper, nickel, zinc, iron, manganese, magnesium and calcium in plant tissues and galls of Hemadas nubilipennis on lowbush blueberry near an ore smelter at Sudbury, Ontario and a second site in Newfoundland was investigated. Concentrations of copper and nickel in plant tissues decline logarithmically with increasing distance from the Sudbury smelter. The highest concentrations of copper and nickel were found in the galls, indicating that gall tissues act as a physiological sink for micronutrients and redirect nutrients from the host plant
Concentrations of zinc, iron, manganese, magnesium and calcium in the plant tissues generally show positive simple or logarithmic increases with increasing distance from the Sudbury smelter. For these elements it appears that soil characteristics, rather than atmospheric emissions from the smelter, prevail in determining tissue concentrations. Galls did not contain high concentrations of these mineral elements
Occurrence of the gall at the tips of vegetative shoots of lowbush blueberry terminates growth and alters the level of nutrients normally destined for stem and leaf tissues. Concentrations of mineral elements are different in the various phases of gall development. The gall appears to sequester and utilize these minerals in a manner consistent with their role in normal plant physiology
Concentrations of mineral elements were also measured in the larvae of H. nubilipennis and its parasitoids at a site near Sudbury and in Newfoundland. The parasitoids contained elevated levels of minerals compared with their host and the galled plant tissue. These results may be related to the parasitoid's feeding behavior and interaction with its host's physiology and metabolism. That is, the parasitoid may allow its host to feed and perhaps respond to the nutritional needs of the developing parasitoid before the host is killed
School code: 0283
Host Item Dissertation Abstracts International 54-02B
主題 Biology, Botany
Biology, Ecology
Biology, Plant Physiology
0309
0329
0817
Alt Author Queen's University (Canada)
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