金佛山方竹竹鞭中内源激素水平和抗氧化酶活性的鞭龄效应

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关键词：金佛山方竹（Chimonobambusautilis）;竹鞭;鞭龄；竹鞭延伸；内源激素;抗氧化酶

中图分类号：S795 文献标识码：A

文章编号：0439-8114（2025）11-0119-08

DOI：10.14088/j.cnki.issn0439-8114.2025.11.015 开放科学（资源服务）标识码（OSID）：口

Effects of rhizome age on endogenous hormone contents and antioxidative enzyme activities ofChimonobambusautilisrhizomes

SUChun-hua1，LINXin-xiao，LOUYi-long²，XIEGang³ （1.ColegeofonviontalEngine，GouinuUnersiang，ina;GaRsahIstittefdaing， Guiyang 550oo8，China；3.Guizhou Institute of Mountain Resources，Guiyang 55O00o，China）

Abstract：Thebambo forestofChimonobambusautilis，which hadbeenbredfor10yearsderivedfromaone-year-oldramet，was usedastheresearchobjectRhizomesampleswerecoectedbythemethodof tracingrhzomes，anditscontentsofendogenoushormonesandantioxidantsystemindexeseredeterminedtoanalyzegeefectsofthephysiolgicalcharacteristicsinzomeelgation. Theresultsshowedthat，tothewholerhizome，contentsofABAincreasedwiththeincreaseofrhizomeage，whilecontentsof GA， IAA and ZR had no significant change. The values of IAA/ABA， ZR/ABA， GA/ABA，（IAA + ZR + GA）/ABA decreased with the increaseofrhizomeage.Withtheincreaseofzomeage，SODativityincreasedfistandthendecreased，PODactivityinreasedfist andthenstabilizedndDAontentdcreasedgadualyTereasnoignificantdierenceinforepart，midlendpostefe rhizomeatthesameage.Thevariationlawofeachindexindiferentrhzomepositionswithageasdiferentduetodiferentinexes. Whentherhizomesofdiferentageswereconnected，changesofABAcontent，valuesofhormoneratioandMDAcontentwiththeincreaseof age were diferent withdiferentconnected segments，andotherindexes hadno significant changes.SOD，CATand MDA weresignificantlyegativelycorrelatedwithABAandIAA，whilePODandCATweresignificantlypositivelycorrelatedwithGAThis studyprovidedatheoreticalbasis forfurtherexploring theroleofbamboorhizomes inthedevelopmentofbamboo forests.

Key words：Chimonobambusautilis；rhizome；rhizomeage；rhizomeelongation；endogenous hormone；antioxidative enzyme

金佛山方竹（Chimonobambusautilis）是兼具生态和经济价值的地下茎复轴型中小地径竹，为中国西南地区特有种[2]。（剩余9935字）