桑寄生種子萌發(fā)過程中的生理生化變化
打開文本圖片集
關(guān)鍵詞：桑寄生（Taxilluschinensis）；種子；果膠；萌發(fā)過程；生理生化指標
中圖分類號：S567.19；Q945.34 文獻標識碼：A
文章編號：0439-8114（2025）05-0083-07
DOI：10.14088/j.cnki.issn0439-8114.2025.05.013 開放科學（資源服務(wù)）標識碼（OSID）：
Physiological and biochemical studies on germination dynamics of Taxillus chinensis seeds
FENGChang-cun1，LIANG Lu2 ，LIANGWen-jing3，GUILing-jian3，SONGLi-sha3， PAN Li-mei，F(xiàn)U Jin- e3 ，WANLing-yun3，WEI Shu-gen1.3
（1.SchoolofPaacyuagieicalUvesityainoina;GradateClgangiUiersityfseii
Naning53O2O，China;GuangxiBotanicalGardenofMedicinalPlants/GuangxiKeyLaboratoryofHigqualityFomatioandUtilaif Dao-di Herbs，Nanning 530023，China）
Abstract：UsingTaxiluschinensisseeds withpectinasthecontrolgroupandde-pectinatedseedsas thetreated group，samples were collected at 0 ，5，10，15，2O，and25daysofcultivation.Thenrelevantphysiologicalandbiochemical indicators were determinedand comparativelyanalyed.Theresultsshowedthatthepolysaccaridecontentinthecontrolexhibitedaniitialincreaseandtefollowedbyadecrease，whilethede-pectinated treatmentshowedacontinuousdecliningtrend.Thesolublesugarcontentinbothgroups displayedadecreaseincrease-deceasepater，withsignificantlyowerlevelsobseredinthd-pectiatedtreatmentcoparedto thecontrolthroughout thegerminationpross.TheMDAcontentinthecontrolgroupshowedanupwardtrend，hileinthedepectinatedgroup，adownward-upward-downwardtrend was exhibitedand itwas mostlylowerthanthatinthecontrolduring germination. Thecontent of H2O2 and 02- showed similar trends in both groups，but thecontent inthede-pectinated group was mostly higher than thatinthecontrolduringgermination.TheactivitiesofSOD，ODandPALexhibitedsimilartrendsinbothgroups.TheSODactivity inthede-pectinatedgroupwasconsistentlyhigherthanthatinthecontrol，whilePODandPALactivities，lthoughlowerhanthose in the control，showed a continuous upward trend. The endogenous hormone content （IAA，ABA， GA3 ，ZR）exhibited fluctuating changesinbothgroups，withthecontrolgroupshowingageneraldowwardtrend，whilethede-pectinatedgroupshowedasignificant increaseandageneralupwardtrend.Itwaspreliminarilyconfirmedthatpectinremovalcouldpromotetherapidmobilizationoftored substances，enzymesandendogenous hormones intheseedsofTaxiluschinensis，promoting thesmooth germinationofseeds.
KeyWords：Taxillus chinensis；seed;pectin；germinationprocess；physiological and biochemical indicators
桑寄生（Taxilluschinensis）屬于桑寄生科鈍果寄生屬植物，主要分布于廣西、廣東、云南、四川以及貴州等地，是傳統(tǒng)的常用大宗中藥材。（剩余10092字）