Experiences on labelling whole plants with carbon-14
Experiences on labelling whole plants with carbon-14
With reference to the carbon-14 greenhouse, in use at the Institute since 1958, improvements are shown and experiences are discussed on labelling several plant species at different activity levels. The chamber can be used with artificial soil mixtures as well as with nutrient solutions, if aeration...
Saved in:
Personal Name(s): | Sauerbeck, D. |
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Führ, Fritz | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich, Verlag
1966
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Physical Description: |
9 p. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Berichte der Kernforschungsanlage Jülich
389 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
With reference to the carbon-14 greenhouse, in use at the Institute since 1958, improvements are shown and experiences are discussed on labelling several plant species at different activity levels. The chamber can be used with artificial soil mixtures as well as with nutrient solutions, if aeration of the latter is provided. Plants grow very well at activities up to 30 $\mu$c/g C. Only the labelled seeds when stored more than six months show considerable radiation injury. At 300 $\mu$c/g C, however, barley plants are heavily damaged. Although they tiller to an unusual extent, the young shoots do not stretch or reach the reproductive stage. Wheat is somewhat more resistant, but at 1000 $\mu$c/g C its growth is almost impeded. Of seven plant species tried at this activity level, including some dicotyledons, only corn turned out to be fairly resistant. Pictures demonstrate the appearance of the plants tested.Thus it seems difficult to raise plants at an activity as high as often desired for biochemical investigations. Since the plants do not mature, the yield of cellulose or even lignin, usually the most interesting compounds for soil humus studies, is comparatively low. A fractionation of the plants thought to be uniformly labelled sometimes reveals activity differences: between several plant constituents. This must be kept in mind while using whole plants for decomposition studies. |