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1、TheeffectsofMarineoligosaccharidesongrowthpromotingandphysiologicalcharacteristicsofplantsAbstractMarineoligosaccbafidesdegraded
2、i'omtilepolysacchafideinmarineorgatfismareaseriesofoligosaecharidefragmentsManneoligosaccharideshavespecialmoleculestroctureandbiologicalactivitythatusedasafl
3、ew—styleplantgrowthregulator·whicharccharacterizedwithnaturalandphysiohigicalactivitymultiplicity．Thispapertookmonocotyledonbarley,wheatandtobaccocellsuspensionasstudyobjects，studiedtheactioneffectoftwomarineoligosaccharideswithdifferentconcenlrationsandelectricchargeoilplantsandtheeffe
4、ctofregulatingplants’growthandelicitingplmlts。defenseresponsesofoligosacchafidesonsomepreliminaryexplorationwerecanSedoutIntheaspectofpintgrowth-promoting：Theseedsofbarleyandwheatwereimmersedinalginate—derivedoligosaccharide(ADO)andchitosanoligosaccharide(cos)ofdifferentconcentrationand
5、thencuhuredinilluminationboxof24℃，thebestconcentrationofgrowth—promotingwasobtainedpreliminaryontileba．seofgrowthindexes：leaf’sheight，root’slength，leaf’swetghtandrootlswetghtMeanwhile，thepaperwastoexplorethemechanismofoligosaceharldesongrowth-promotingbycombiningthephysiologicalindexsin
6、seeds。germinationandgrowthprocess：chlorophyllcontentofhiavcs，amylaseactivityofseedsandrootaedvityofplantwiththebasicgrowthindexesTbcresultsshowedthattbebestpromotingconcentrationofADOonbarleyandwheatweredifferent，whichwereat05％and0．25％respectively,butbothofthemhadabettereffectongrowthpr
7、omotingbetweentheconcentration025％a兀d05％．whentheconcentrationWaSat075％itbegantohthibitthegrowthofpIant；theeffectofCOSonbarleygrowthpromotingwasassimilaraswheat，thebestpromothlgconcentrationofCOSwasat0025％．a(chǎn)ndtilepromotionwasweakwhenmcconcentrationwasat0075％Basedoilthedeterminationofphys
8、iologicalindexesofthesemonocotyledons，itshowedthattheoligosacchafidespromotedseedgerminationandseedlinggrowththroughimprovingchlorophyllcontentamylaseactivityandrootactivity．Therefore，thehendofphysiologicalindexeswasidenticaltoofplantThefieldexperimentofwheat：Thewheatseedswe陀im
