不同温度下铝胁迫对麻疯树幼苗逆境生理的影响
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关键词：麻疯树（JatrophacurcasL.）;铝胁迫；温度；生理指标中图分类号：S643.1 文献标识码：A文章编号：0439-8114（2025）07-0087-07DOI：10.14088/j.cnki.issn0439-8114.2025.07.01（开放科学（资源服务）标识码（OSID）：
The effects of aluminum stress on the stress physiology of Jatrophaseedlingsunderdifferent temperature
LIRong-feng1，LINDe-fang²，WANGZi-song1 （1.College of Agriculture and Food Engineering，Baise University，Baise 533OOo，Guangxi，China; 2.School Attached to Beihai University of Art and Design，Beihai536OOO，Guangxi，China）
Abstract：Using theseedsofJatrophacurcasL.astheexperimentalmaterialsandemployingthepotsandculturemethod，thephsio logicalndecologicalresponsesofJatrophacurcasL.sedingsunderdiferenttemperaturesandaluminumconcentrationswrestudied.Theesultsshowedthatonthe7thdayofstress，compared，withthecontrolthereasnosignificantdiferenceintheMDAcontent of Jatropha seedlings treated with 100μmol/L aluminum stress at 25‰ . The activities of CAT，POD and APX all increased compared with the control，the activity of SOD decreased by 35.1% .At 15qC ，the Pro content of Jatropha seedlings gradually increased with the increase of aluminum stress concentration. Under the aluminum stress treatment，except for the 200μmol/L aluminum stress concentration，the SS content and POD activity were both higher than those under the 25‰ treatment. The contents of MDA and Pr （20 were higher than those under the 25‰ treatment regardless of the control or the aluminum stress treatment.On the 14th day of stress， the MDA，Pr and SS contents of control in Jatropha seedlings at 15qC were 1.52 times，1.26 times and 2.43 times that of the control at 25‰ ，respectively.HighconcentrationofaluminuminhibitedtheactivitiesofSODandAPX，andthedouble stressoflow temperatureandaluminuinhbitedtheactivityofPOD.Reseachshowedthatshort-termlow-concentratioalumiumstreshadlitleffect onthegrowthofJatrophaseedlings.Underlong-termaluminumstress，thedamagesuferedbyJatrophwasn’trelatedtolowtemperature.Aluminum stress was the main factor restricting the growth of Jatropha sedlings.
eyWords：Jatropha seedlings；aluminum stress；temperature;physiological indexe
铝是土壤中含量最丰富的金属元素，通常以难溶性的硅酸盐和氧化物的形式存在于含铝矿物质中，对植物和环境没有毒害作用。（剩余11956字）