Growth of prunus tree stems under simulated microgravity conditions

Details Growth of prunus tree stems under simulated microgravity conditions Growth of prunus tree stems under simulated microgravity conditions

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23.2017n&link_type=abstract

Advances in Space Research, Volume 23, Issue 12, p. 2017-2020.

Physics

1

Scientific paper

Stem growth of Prunus trees under simulated microgravity conditions was examined using a three-dimensional clinostat. The stems elongated with bending under such conditions. Stem elongation and leaf expansion were both promoted, whereas the formation of xylem in the secondary thickening growth was inhibited under the simulated microgravity condition. In secondary xylem, sedimentable amyloplasts were observed in the 1g control. The present results suggest that stem elongation and leaf expansion may be inhibited at 1g, while growth direction and secondary xylem formation depend on a gravity stimulus. A space experiment is expected to advance research on thickening growth in trees.

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