农业科学与技术：英文版
農業科學與技術：英文版
농업과학여기술：영문판
Agricultural Science ＆ Technology
2011年
10期
1468-1471,1476
,共5页
化感作用%根长%茎长%脯氨酸
化感作用%根長%莖長%脯氨痠
화감작용%근장%경장%포안산
Allelopathy%Root length%Shoot length%Proline
[目的]研究麻疯树叶浸提液对万寿菊幼苗生长和抗氧化酶活性的化感影响,揭示麻疯树对林下植物的化感生理机制。[方法]对麻疯树叶浸提液对万寿菊幼苗的生长、丙二醛（MDA）、脯氨酸（Proline）和抗氧化酶系统的影响进行研究和分析。[结果]与对照相比,麻疯树叶浸提液加入土壤后,明显抑制了万寿菊根和茎的生长;同时,在叶浸提液中,万寿菊根中的O2-、H2O2、丙二醛和脯氨酸的含量升高,且浸提液浓度的增加而增加;另外,麻疯树叶浸提液在较低浓度时,超氧化物歧化酶（SOD）和过氧化物酶（POD）活性无显著变化,而在较高浓度时,SOD酶活性明显增加;所有浓度的叶浸提液都显著增加了万寿菊根中过氧化氢酶（CAT）和抗坏血酸过氧化物酶（APX）活性,且随着浓度的增加而增加。[结论]麻疯树能释放化感物质进入土壤,抑制植物的生长和生理,改变植物群落组成和结构。
[目的]研究痳瘋樹葉浸提液對萬壽菊幼苗生長和抗氧化酶活性的化感影響,揭示痳瘋樹對林下植物的化感生理機製。[方法]對痳瘋樹葉浸提液對萬壽菊幼苗的生長、丙二醛（MDA）、脯氨痠（Proline）和抗氧化酶繫統的影響進行研究和分析。[結果]與對照相比,痳瘋樹葉浸提液加入土壤後,明顯抑製瞭萬壽菊根和莖的生長;同時,在葉浸提液中,萬壽菊根中的O2-、H2O2、丙二醛和脯氨痠的含量升高,且浸提液濃度的增加而增加;另外,痳瘋樹葉浸提液在較低濃度時,超氧化物歧化酶（SOD）和過氧化物酶（POD）活性無顯著變化,而在較高濃度時,SOD酶活性明顯增加;所有濃度的葉浸提液都顯著增加瞭萬壽菊根中過氧化氫酶（CAT）和抗壞血痠過氧化物酶（APX）活性,且隨著濃度的增加而增加。[結論]痳瘋樹能釋放化感物質進入土壤,抑製植物的生長和生理,改變植物群落組成和結構。
[목적]연구마풍수협침제액대만수국유묘생장화항양화매활성적화감영향,게시마풍수대림하식물적화감생리궤제。[방법]대마풍수협침제액대만수국유묘적생장、병이철（MDA）、포안산（Proline）화항양화매계통적영향진행연구화분석。[결과]여대조상비,마풍수협침제액가입토양후,명현억제료만수국근화경적생장;동시,재협침제액중,만수국근중적O2-、H2O2、병이철화포안산적함량승고,차침제액농도적증가이증가;령외,마풍수협침제액재교저농도시,초양화물기화매（SOD）화과양화물매（POD）활성무현저변화,이재교고농도시,SOD매활성명현증가;소유농도적협침제액도현저증가료만수국근중과양화경매（CAT）화항배혈산과양화물매（APX）활성,차수착농도적증가이증가。[결론]마풍수능석방화감물질진입토양,억제식물적생장화생리,개변식물군락조성화결구。
[Objective] This study was to investigate the allelopathic effects of J.curcas leaf leachates on seedling growth and antioxidative enzymes,and thus to reveal physiologically allelopathic effects of J.curcas trees on undergrowth plants.[Method] The allelopathic effects of leaf leachates of Jatropha curcas amended into soil were determined on the growth,proline and malondialdehyde（MDA） contentas well as superoxide dismutase（SOD）,catalase（CAT）,ascorbate peroxidase（APX）,guaiacol peroxidase（POD） in roots of marigold（Tagetes erecta） seedlings.[Results] The application of leaf leachates of J.curcas in the soil significantly inhibited the shoot and root length of marigold compared to un-amended soils.The leaf leachates increased the O-2,H2O2,MDA and proline content in the roots of marigold seedlings.The effects increased with the ascending of leaf leachates concentration.In addition,superoxide dismutase（SOD） and guaiacol peroxidase（POD） were not remarkably affected by the leachates at lower concentrations,but at higher concentration,SOD activity was ascended.Similarly,the activities of CAT and APX were also significantly increased with the increase of leachates concentrations.[Conclusion] These results show that J.curcas can release the phytotoxic compound（s） into soil,which are inhibitory to certain test species by interfering with physiological process.
