Microgravity Effects on Chlorophyll Content in Rice
- Paper number
IAC-07-A5.I.-A3.I.B.24
- Author
Mr. Santosh Bhaskaran, University of Pune, India
- Coauthor
Mr. Sagar Jagtap, India
- Coauthor
Mr. Amit Nirhali, India
- Coauthor
Ms. Vishakha Hase, India
- Coauthor
Prof. Pandit Vidyasagar, India
- Year
2007
- Abstract
All living beings on earth experience the gravitational field of the earth. Gravity has been constant throughout the evolution of life on Earth. Millions of years of evolution in an environment containing this constant factor have led life forms on this planet to acquire characteristics that are not only shaped by it but are also adapted to utilize it for their benefit. Establishing the role of gravity in plants requires information about how gravity regulates individual cell metabolism. Plant cells and tissues in vitro are valuable models for such purpose. Data obtained from non-numerous space and clinostat experiments with plant cells in vitro have demonstrated that their metabolism is sensitive to g-environment. In this paper, we present the work done to study of the effects of microgravity on the growth and development of rice plants as well as on the photosynthetic apparatus. Rice seeds were placed in the clinostat for 12 hours and then grown normally. Root and shoot lengths were measured every consecutive 12 hours. Chlorophyll was isolated from the shoots and the UV-Vis spectra were recorded for every alternate day since the 6th day. Root and shoot lengths were higher for the clinorotated samples. Chlorophyll from clinorotated samples showed higher absorption for the 6th day which then reduced for the consecutive days. Lower absorption was observed for clinorotated samples on the 10th day. This suggests possibility of faster senesce in the clinorotated samples.
- Abstract document
- Manuscript document
IAC-07-A5.I.-A3.I.B.24.pdf (🔒 authorized access only).
To get the manuscript, please contact IAF Secretariat.