BIOCHEMICAL INVESTIGATION OF MOSAIC IN SOLANUM TUBEROSUM

抄録

1. Biochemical study of healthy and mosaic tomato plants has been undertaken.
2. Fresh and dry weights of the plants were taken. Ether extract (oils, chlorophyll), alcohol extract (reducing sugars), non-reducing sugars, starch, hemicellulose. total carbohydrates, nitrogen, ash and calorific heat were determined quantitatively.
3. The data seem to indicate that healthy plants made better growth both on fresh and dry weight basis. However, the percentage of dry matter was higher for the mosaic plants.
4. Percentages of ether extract, non-reducing sugars, starch, hemicelluloses and calories of heat per gram were higher for healthy plants; while nitrogen, inert materials, including cellulose, were higher in deseased plants. Percentages of ash and reducing sugars was practically alike in both kinds of plants.
5. Some suggestions for such biochemical results as shown by these plants have been made.
6. There is a need for more thorough study in this connection which might elucidate the causal agency or the mechanism of mosaic diseases.
It is a pleasure to acknowledge the co-operation shown by Mr. Ray Glynn, M. Sc., Research Assistant, Biology Department of this institution.