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- Title
Effects of hypergravity on the elongation and morphology of protonemata of Adiantum capillus-veneris.
- Authors
Hirokazu Kasahara; Kazumi Yanagiya; Yuichi Takeuchi; Masamichi Yamashita; Mitsuhiro Yarnada
- Abstract
Elongation growth of Adiantum capillus-veneris, which can be can be controlled by light irradiation, was examined under acropetal and basipetal hypergravity conditions (from -13 to +20 g) using a newly developed centrifugation equipment. Elongation of the protonemata under red light was inhibited by basipetal hypergravity at more than +15 g but was promoted by acropetal hypergravity from -5 to -8 g. Division of the protonemal cells that was induced by white light was inhibited under basipetal hypergravity at +20 g but was unaffected under acropetal hypergravity at -15 g. Upon exposure to continuous red light for 7 to 8 days, most of the protonemata grew as fliamentous cells in the absence of a change in the normal gravitational force (control), but more than half of the protonemal cells were abnormal in terms of shape when maintained under hypergravity at +20 g.
- Subjects
PLANT growth; IRRADIATION; PROTONEMATA; MOSSES; CELLS; MAIDENHAIR ferns; PLANT physiology
- Publication
Physiologia Plantarum, 1995, Vol 93, Issue 2, p352
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1995.tb02239.x