Abstract：
:The elongation growth of the hypocotyls of radish and cucumber seedlings was examined under hypergravity in a newly developed centrifuge (Kasahara et al. 1995). The effects of hypergravity on elongation growth differed between the two species. The rate of elongation of radish hypocotyls was reduced under basipetal hypergravity (H+2O g) but not under acropetal hypergravity (H-13 g), as compared to growth under the control conditions (C+1 g and C-1 g). In cucumber hypocotyls, elongation growth was inhibited not only by basipetal but also by acropetal hypergravity. Under these conditions, the reduction in the elongation growth of both radish and cucumber hypocotyls was accompanied by an increase in their thickness. Although no distinct differences in relative composition of neutral sugars were found, the amounts of cell-wall components (pectic substances, hemicelluloses and cellulose) per unit length of hypocotyls were increased by exposure to hypergravity.
journal_name
J Plant Resjournal_title
Journal of plant researchauthors
Kasahara H,Shiwa M,Takeuchi Y,Yamada Mdoi
10.1007/BF02344306subject
Has Abstractpub_date
1995-03-01 00:00:00pages
59-64issue
1089eissn
0918-9440issn
1618-0860journal_volume
108pub_type
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