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Obendorf DL, Handlinger JH, Mason RW, Clarke KP, Forman AJ, Hooper PT, Smith SJ, Holdsworth M. Trichinella pseudospiralis infection in Tasmanian wildlife. Aust Vet J 1990; 67:108-10. [PMID: 2375708 DOI: 10.1111/j.1751-0813.1990.tb16084.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
Carbon dioxide absorption by a selection of succulent plants, was followed by a modification of Tregunna's method, in which the plant sample on absorbing the carbon dioxide from an enclosed volume of air in contact with weak bicarbonate, causes the solution's pH to change. Of the 21 species tested, 11 took up carbon dioxide in the dark: Lithops turbiniformis, Zygocactus truncatus, Bryophyllum daigremontianum, Crassula multicava, Echeveria gibbiflora, Kalanchoe blossfeldiana, Sedum confusum, S. pachyphyllum, S. rubrotinctum, S. spectabile, Aloe globuligemma. The duration of uptake varied from a few hours to the whole night (and longer). Even in those other species where uptake occurred in the daytime it started and stopped at times not immediately related to the onset of light or darkness.
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