松嫩不同鹽堿化羊草草原羊草葉片蛋白質積累特性.pdf

1、東北師范大學碩士學位論文松嫩不同鹽堿化羊草草原羊草葉片蛋白質積累特性姓名：康樂申請學位級別：碩士專業(yè)：生態(tài)學指導教師：郭繼勛石連旋20061201AbstractLeymuschinensisamemberofGramineaeLeymusisaperennialgramineousgrasswithlongrhizomes，whichisadominatinggrassspeciesinsongnengrasslandIthaswid

2、elyecologicalscope，whichcarlgrowwithAeluropussinensis，PuccinelliatenuifloraandSuaedaglaucaIthaslotsofspecialitiesinEcophysiologysuchashighproducavitytoleranceofdryleallIless—resistantandsalinealkalitolerance，abundanceofn

3、utrition，greatworthofeconomyandfeelswellButrecentlymanysteppesbecamesaline—alkaliandecologicalenvironmenthasbeendestroyedbecauseoftheincorrectUSingofLeymuschinensissteppeSostudyonGramineaeLeymusinverse—resistantecophysio

4、logyandmolecularmechanismhadsignificantmeaninginbothproductionofLeymuschinensisandmanagementandreformationofsaline—alkaliSteppeThestudydiscussedthegrowthadaptationofLeymuschinensisfromtheaspectsoftheproteinaccumulationan

5、dnitrogenmetabolisminsaline—alkaligrasslandandtriedtoanalyzetherelationamongproteinaccumulation，LeymuschinensispopulationformationandphysicchemicalcharactersofsoilTheresultsindicatedthattllesolubleproteinofLeymuschinensi

6、satdifferentgrowthperiodsalongthesaline—alkalineWasdifferentnotonlyinproteincontentbutalsoinproteinunitsconstituteAlongwiththeincreaseofthesalinealkaline，thevariationtendenciesofthesolubleproteincontentateverygrowthstage

7、swasdifferentSuchasatfloweringstageandbootingstageshowedthetrendofincreasedecrease～抽crease～decrease：Atmilkingstage，waxripeningstage，vegetativingstageafterthefullripeandperishingstageshowedthetrendofdecrease～increase～decr

8、ease；Inaddition，Whenimitatingsalinealkalitolerance，thevariationtendenciesofthesolubleproteincontentwassimilartofloweringstageandbootingstageAtproteinunitsconstitute，everygrowthstagesofLeymuschinensisallfoundexceptionalpr

9、oteinbandsSuchas1346KDatfloweringstageandbootingstage；1453KDatmilkingstage，Waxripeningstage，vegetativingstageafterthefullripeandperishingstageand1346KDatimitmingTheseproteinunitsmightbecauseofsalinealkalitoleranceAlongth

10、esalinealkaline，nitrogenmetabolismofLeymuschinens括changedThecontentofNH4NappearedtodescendobviouslyThecontentofN03一NappearedtisethendescendThewholenitrogencontenthadnoobviousvarietyKeyword：Leymuschinensis；Saline—alkaliga