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ACQUISITION OF COMPETENCE FOR CULMINATION DURING FINGER FORMATION IN DICTYOSTELIUM DISCOIDEUM
Author(s) -
ISHIKAWA AKIRA,
TOMITA SEIICHI,
ANDO YASUHIKO
Publication year - 1980
Publication title -
development, growth and differentiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 66
eISSN - 1440-169X
pISSN - 0012-1592
DOI - 10.1111/j.1440-169x.1980.00021.x
Subject(s) - dictyostelium discoideum , slime mold , microbiology and biotechnology , biology , biochemistry , gene
Finger‐like structures of the cellular slime mold, Dictyostelium discoideum , were disrupted with a fine needle and the resulting cell masses were allowed to develop. When complete fingers formed under overhead lighting were disrupted, the cell masses rapidly became transformed into fruiting bodies. Development of similar cell masses from fingers reared in the dark was affected by the lighting conditions after disruption: under overhead lighting the cell masses rapidly culminated; under unilateral lighting, they formed fingers again and then migrating slugs. In contrast, the cell masses from mounds with tips formed fingers regardless of the lighting conditions. It is concluded from these findings that the cells become competent for culmination during finger formation under overhead lighting.