The effect of artificial gravity on grows processes and photosynthetic apparatus of Triticum аestivum L. infected by the wheat streak mosaic virus

1Mischenko, LT
1Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kosm. nauka tehnol. 2002, 8 ;(5-6):066-070
Publication Language: Russian
We studied grows processes and photosynthetic apparatus of different healthy and virus infected wheat plants under the conditions of simulating some factors of microgravity on universal clinostat. The clinostat realizes some schemes of reorientation of plants relative to the force of gravity over a vegetative period. A high specificity of wheat streak mosaic virus allows us to recommend the Apogee wheat variety for cultivation in space greenhouses because other spring varieties, Sarativska-29 and Colectyvna-3, did not ear, in contrast to Apogee, over the same period of cultivation. The photosynthetic apparatus of the superdwarf Apogee wheat variety has a high adaptable potential and can carry out its basic function that is life-support and formation of grains by plants.
Keywords: clinostat, microgravity, virus infected wheat plants
1. Kordyum E. L. Space biology and medicine in Ukraine: Concepts and experimental data. In: Space Research in Ukraine in 2000-2002, 55—66 (NKAU, Kyiv, 2002) [in Ukrainian].
2. Levinskikh M. A. Ontogeny, reproduction and metabolism of higher plants in space flight conditions: Extended abstract of Doctor’s thesis, 49 p. (Moscow, 2002) [in Russian].
3. Merkys A. I. Force of gravity in processes of plant growth, 184 p. (Nauka, Moscow, 1990) [in Russian].
4. Kordyum E. L. Plant reproduction systems in microgravity: experimental data and hypotheses. Adv. Space Res., 21 (8-9), 1111 — 1120 (1998).
5. Kordym E. Gravisensitivity of Plant Cells. In: 23rd Annual Int. Gravitational Physiology Meeting: Abstracts, P. 174 (Stockholm, Sweeden, 2002).
6. Maffei M., et al. Plant in Space: Physiological and Biotech-nological Considerations. In: 23rd Annual Int. Gravitational Physiology Meeting: Abstracts, P. 119 (Stockholm, Sweden, 2002).
7. Shen-Miller J., Hinchman R., Gordon S. A. Thresholds for Georesponse to Acceleration in Gravity-Compensated Avena Seedlings. Plant Physiol., 43 (13), 338—344 (1968).
8. von Wettstein D. Chlorophyll-letale und der submikroskopishe Formwechsel der Plastiden. Exp. Cell Res., 12 (3), 497—506 (1957).

9. Wardlow I. F. Transloccation and source-sink relationship. In: The Biology of Crop Productivity, 297—339 (Acad. Press, New York, 1980).