内蒙古民族大学学报(自然科学版)
內矇古民族大學學報(自然科學版)
내몽고민족대학학보(자연과학판)
JOURNAL OF INNER MONGOLIA UNIVERSITY FOR NATIONALITIES(NATURAL SCIENCES)
2014年
3期
287-292
,共6页
红砂%土壤盐分%植株盐分%酶活性
紅砂%土壤鹽分%植株鹽分%酶活性
홍사%토양염분%식주염분%매활성
Soongorica%Soil salinity%Plant salt%Enzyme activity
以阿拉善左旗锡林高勒地区红砂(Reaumuria soongorica)及其生长土壤为研究对象,通过常规离子含量测定法、电镜制片及观察、氧化酶活性测定、MDA、脯氨酸含量测定及模糊数学函数分析,探讨红砂对荒漠盐化土的适应特征,得出如下结果:锡林高勒土壤环境均呈碱性.全盐含量在3.0~7.0ɡ·㎏-1之间,pH8.0~8.25,电导率为1.6~5.9ms·cm-1.红砂叶片肉质化,叶、茎表面具有盐腺、气孔器和表皮毛,叶表皮的盐腺密度较大,在1 mm2的表皮中,具有盐腺16~17个.红砂的根、茎、叶含有Na+、K+、Ca2+和Mg2+等离子,与根系生长土壤环境中的阳离子组分一致.红砂植株不同部位的各种离子含量的基本趋势均是:根<茎<叶,其中阳离子K+含量较高,Na+离子的含量相对低些,Mg2+、Ca2+含量更低.不同株型的红砂叶片均属于中抗型,在不同株型间超氧物歧化酶(SOD)、游离脯氨酸(pro)的含量无显著差异(P>0.05),丙二醛(MDA)的含量大株与小株、中株有显著差异(P<0.05),过氧化氢酶(CAT)和过氧化物酶(POD)的含量均呈小株与大株、中株有显著差异(P<0.05).红砂叶片中MDA、SOD和CAT的含量均为大株<中株<小株;POD的含量为中株>大株>小株;pro的含量为大株>中株>小株.
以阿拉善左旂錫林高勒地區紅砂(Reaumuria soongorica)及其生長土壤為研究對象,通過常規離子含量測定法、電鏡製片及觀察、氧化酶活性測定、MDA、脯氨痠含量測定及模糊數學函數分析,探討紅砂對荒漠鹽化土的適應特徵,得齣如下結果:錫林高勒土壤環境均呈堿性.全鹽含量在3.0~7.0ɡ·㎏-1之間,pH8.0~8.25,電導率為1.6~5.9ms·cm-1.紅砂葉片肉質化,葉、莖錶麵具有鹽腺、氣孔器和錶皮毛,葉錶皮的鹽腺密度較大,在1 mm2的錶皮中,具有鹽腺16~17箇.紅砂的根、莖、葉含有Na+、K+、Ca2+和Mg2+等離子,與根繫生長土壤環境中的暘離子組分一緻.紅砂植株不同部位的各種離子含量的基本趨勢均是:根<莖<葉,其中暘離子K+含量較高,Na+離子的含量相對低些,Mg2+、Ca2+含量更低.不同株型的紅砂葉片均屬于中抗型,在不同株型間超氧物歧化酶(SOD)、遊離脯氨痠(pro)的含量無顯著差異(P>0.05),丙二醛(MDA)的含量大株與小株、中株有顯著差異(P<0.05),過氧化氫酶(CAT)和過氧化物酶(POD)的含量均呈小株與大株、中株有顯著差異(P<0.05).紅砂葉片中MDA、SOD和CAT的含量均為大株<中株<小株;POD的含量為中株>大株>小株;pro的含量為大株>中株>小株.
이아랍선좌기석림고륵지구홍사(Reaumuria soongorica)급기생장토양위연구대상,통과상규리자함량측정법、전경제편급관찰、양화매활성측정、MDA、포안산함량측정급모호수학함수분석,탐토홍사대황막염화토적괄응특정,득출여하결과:석림고륵토양배경균정감성.전염함량재3.0~7.0ɡ·㎏-1지간,pH8.0~8.25,전도솔위1.6~5.9ms·cm-1.홍사협편육질화,협、경표면구유염선、기공기화표피모,협표피적염선밀도교대,재1 mm2적표피중,구유염선16~17개.홍사적근、경、협함유Na+、K+、Ca2+화Mg2+등리자,여근계생장토양배경중적양리자조분일치.홍사식주불동부위적각충리자함량적기본추세균시:근<경<협,기중양리자K+함량교고,Na+리자적함량상대저사,Mg2+、Ca2+함량경저.불동주형적홍사협편균속우중항형,재불동주형간초양물기화매(SOD)、유리포안산(pro)적함량무현저차이(P>0.05),병이철(MDA)적함량대주여소주、중주유현저차이(P<0.05),과양화경매(CAT)화과양화물매(POD)적함량균정소주여대주、중주유현저차이(P<0.05).홍사협편중MDA、SOD화CAT적함량균위대주<중주<소주;POD적함량위중주>대주>소주;pro적함량위대주>중주>소주.
Abtract:with the Gol region of Alashanzuoqi Soongorica and growth of soil for study,through the conventionalion con-tent determination、Scanning electron microscopy、Oxidase activity was measured、、MDA、Determination of proline and Fuzzy math function analysis to investigate the adaptive features of soongorica to desert soil salinization, obtain the fol-lowing conclusions:The soil of Gol region have shows alkaline.The content of total salt between the 3.0~7.0ɡ·㎏-1 , pH8.0~8.25, Conductivity is 1.6~5.9ms·cm-1,the salinization of soil is the intensity.The leaves of Soongorica are Carnification, Leaves stems surface have Salt glands, Stomatal apparatus and trichomes,the Salt gland density of leaves epidermis are greater.The root ,stem and leaf of Soongorica has Na+、K+、Ca2+and Mg2+Ion,the same with the Cation of root grow in the Soil environment.The content of various ions in the different parts of Soongorica the basic trend are root<stem<leaf,the K+lon is high,Na+ lon is low and Mg2+、Ca2+lon is lower among the Cation Content. The different types of Soongorica leaves belong to middle resistance type,superoxide dismutase, free proline content are no significant differences(P>0.05)between different plant type, MDA has significant differences(P<0.05)among the small ,middle and large strains.The content of MDA、SOD and proline of superoxide leaves are large strain<middle strain<small strain;The content of middle strain is small strain < middle strain < large strain; The content of large strain is small strain<middle strain<large strain.