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EXPERIMENTAL CONTROL OF BUDDING AND STOLON ELONGATION IN PEROPHORA ORIENTALIS , A COMPOUND ASCIDIAN *
Author(s) -
FUKUMOTO MAKOTO
Publication year - 1971
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.1971.00073.x
Subject(s) - stolon , elongation , vesicle , biology , botany , microbiology and biotechnology , chemistry , biochemistry , materials science , membrane , metallurgy , ultimate tensile strength
The elongation of stolon and the formation of an endoblastic vesicle leading to the differentiation of a blastozooid in an isolated stolon piece of Perophora orientalis were described. A treatment of isolated stolon pieces with 2 × 10 −2 M thiourea for 5 hr completely inhibited stolon elongation and at the same time accelerated the formation of an endoblastic vesicle. Inversely, 10 −5 M thyroxine and 10 −5 M triiodothyronine markedly stimulated stolon elongation with concomitant suppression of the formation of an endoblastic vesicle. The isolated stolon piece was thus proved to be experimentally directed either to the elongation of stolon or to the formation of an endoblastic vesicle, and to be a potential system for the study of the control mechanisms between the two alternative pathways, growth and differentiation.