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1、生態(tài)學(xué)雜志ChineseJournalofEcology2009,2s(2):231—236不同地理種源南方紅豆杉中紫杉醇和10-DAB含量及影響因子米柯春婷仝川一王玉震黃佳芳倪進(jìn)治楊紅玉(福建師范大學(xué)地理科學(xué)學(xué)院,濕潤亞熱帶生態(tài)地理過程省部共建教育部重點(diǎn)實(shí)驗(yàn)室,亞熱帶資源與環(huán)境省重點(diǎn)實(shí)驗(yàn)室,福州350007)摘要選擇福建省梁野山、龍棲山、閩侯旗山、南靖書洋鄉(xiāng)和南平大坪村南方紅豆杉(Taxuschinensisvar.marei)天然群體分布相對集中區(qū),采集胸徑相同的南方紅豆杉的當(dāng)年生針葉和樹皮并取樹下土壤樣品。利用超高效液相色譜分析測定南方紅豆杉當(dāng)年生針葉及樹皮中紫杉醇及1O
2、一去乙?;涂ㄍあ?10.deacetylbaccatinm,10一DAB)含量,另測定土壤pH值、速效磷、速效氮、鐵、鈣、鎂、鋅含量。結(jié)果表明,不論是紫杉醇還是10一DAB含量,不同地理種源南方紅豆杉間差異均較大,說明地理位置對于紅豆杉中紫杉醇和10.DAB含量具有明顯的影響;樹皮中紫杉醇含量與土壤中鐵含量顯著相關(guān)(P<0.01);南方紅豆杉當(dāng)年生針葉中及樹皮中紫杉醇含量與各種源地氣象因子的相關(guān)性不顯著(P>0.05)。關(guān)鍵詞紫杉醇含量;10一DAB含量;地理種源;南方紅豆杉中圖分類號X171.1文獻(xiàn)標(biāo)識碼A文章編號1000—4890(2009)02—0231—06Taxol
3、and10-DABcontentsofdiferentprovenanceTaxuschinensisvar.mareiandrelatedafectingfactors.KEChun—ring,TONGChuan,WANGYu—zhen,HUANGJia-fang,NIJin.zhi,YANGHong-yu(KeyLaboratoryofHumidSub—tropicalEco—geographicalProcessofMinistryofEducation,ProvincialKeyLaboratoryofSubtropicalResourcesandEnvironment
4、,SchoolofGeo—graphicalSciences,F(xiàn)ujianNormalUniversity,F(xiàn)uzhou350007,China).ChineseJournalofEcolo—gY,2009,28(2):231-236.Abstract:TheLiangyeMountain,LongqiMountain,QishanMountain,Shuyangvillage,andDapingvillageinFujianProvince,whererelativelyconcentratedwithTaxuschinensisvar.marei,wereselecteda
5、sthesitestocollectthe1-year—oldneedleandbarksamplesofsameDBHchinensisvar.mareitreesandthesoilsamplesunderthetrees.Thetaxoland10-DABcontentsintheneedlesandbarksweremeasuredwithUPLC.a(chǎn)ndthesoilpropertiesincludingpH。availablephosphorus,availablenitrogen,iron,calcium,magnesium,andzincweremeasured
6、.Theresultsshowedthatdifferentprovenancechinensisvar.mareihadgreaterdifferencesinthetaxoland10一DABcontentsinits1-year—oldneedlesandbarks,suggestingtheobviouseffectsofgeograph—icallocation.Thetaxolcontentinbarkshadsignificantcorrelationwithsoilironcontent(P<0.O1),butthetaxoland10一DABcontentsi
7、nneedlesandbarkshadlesscorelationwiththelo-calclimateparametersoftheprovenances(P>0.05).Keywords:taxolcontents;10.DABcontents;provenance;Taxuschinensisvar.marei.紅豆杉是一種古老的裸子植物,為常綠喬木或ana)、東北紅豆杉(cuspidata)和南方紅豆杉(灌木,全世界有紅豆杉屬植物11種,分布于北半球chinensisyak.mar