The aberrant, a morphological mutant of Hydra attenuata, has altered inhibition properties☆
[摘要] Transplantationexperimentshaveledtotheideathatdevelopmentalgradientsareinvolvedinthepatterningprocessesofhydra.Headactivationandheadinhibitiongradientsappeartobeinvolvedinheadformation.Morecouldbelearnedaboutpatternformationifthesegradientscouldbealteredintheanimal.Oneapproachtothisendistostudymutantssuspectedofhavingalteredgradients.Suchmutantsmaybeidentifiedbytheiralteredmorphology.Inthisinvestigationtheaberrant,amorphologicalmutantofHydraattenuata,wasexaminedforalterationsinitsgradients.Theaberrantwasfoundtohavechangesinitsinhibitionandpolarityproperties.Theinhibitiongradientwassteeperthannormalandthelevelofinhibitionwashigherthannormalnearthehead.Inaddition,theamountofinhibitiontransmittedfromtheheadwasgreaterthannormal,whiletheamountofinhibitiontransmittedthroughthegastricregionwaslessthannormal.Thepolarityoftheaberrantgastricregionwasmoredifficultthannormaltoreverse,andtheaberrantextremitiescausedfasterpolarityreversalthannormalextremities.Thesignificanceofthesechangesisdiscussedinrelationtopatternformation.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
