草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2012年
2期
7-14
,共8页
5种园林灌木%盐分胁迫%保护酶系统%生理生化指标
5種園林灌木%鹽分脅迫%保護酶繫統%生理生化指標
5충완림관목%염분협박%보호매계통%생리생화지표
five garden shrubs of landscape plants%salt stress%protective enzyme system%physiological and biochemical indexes
通过对不同浓度盐胁迫下5种园林灌木大花六道木、滨柃、花叶胡颓子、伞房决明和迷迭香生理生化指标的测定,结果表明,随着盐分的升高,5种园林灌木的叶绿素和类胡萝卜素含量不断下降,大花六道木和滨柃的下降幅度较小,分别为28.8%和17.8%,滨柃的叶绿素含量的变化幅度最小,为21.2%和6.5%。5种园林灌木SOD、CAT、POD酶活性和可溶性蛋白含量与细胞膜透性呈显著或极显著负相关,滨柃具有较强的酶活性,上述指标最高时可分别达258.0%,58.6%和184.0%。可溶性蛋白对植物的耐盐程度作用不大。5种园林灌木的游离Pro、可溶性糖、超氧阴离子自由基含量和MDA均与细胞膜透性呈极显著和显著相关。在重度盐分胁迫下,滨柃的脯氨酸含累量最大,为对照的6倍,可溶性糖的含累量仅次于大花六道木。超氧阴离子自由基含量和MDA在体内的变化幅度最小,达90%和18.71%,其次是大花六道木和迷迭香。因此,细胞膜受伤害程度最小的是滨柃、其次是大花六道木、迷迭香。花叶胡枝子和伞房决明的耐盐能力较弱,不适应盐分较高地区种植。此研究为园林灌木的地区选择提供了一定的理论依据。
通過對不同濃度鹽脅迫下5種園林灌木大花六道木、濱柃、花葉鬍頹子、傘房決明和迷迭香生理生化指標的測定,結果錶明,隨著鹽分的升高,5種園林灌木的葉綠素和類鬍蘿蔔素含量不斷下降,大花六道木和濱柃的下降幅度較小,分彆為28.8%和17.8%,濱柃的葉綠素含量的變化幅度最小,為21.2%和6.5%。5種園林灌木SOD、CAT、POD酶活性和可溶性蛋白含量與細胞膜透性呈顯著或極顯著負相關,濱柃具有較彊的酶活性,上述指標最高時可分彆達258.0%,58.6%和184.0%。可溶性蛋白對植物的耐鹽程度作用不大。5種園林灌木的遊離Pro、可溶性糖、超氧陰離子自由基含量和MDA均與細胞膜透性呈極顯著和顯著相關。在重度鹽分脅迫下,濱柃的脯氨痠含纍量最大,為對照的6倍,可溶性糖的含纍量僅次于大花六道木。超氧陰離子自由基含量和MDA在體內的變化幅度最小,達90%和18.71%,其次是大花六道木和迷迭香。因此,細胞膜受傷害程度最小的是濱柃、其次是大花六道木、迷迭香。花葉鬍枝子和傘房決明的耐鹽能力較弱,不適應鹽分較高地區種植。此研究為園林灌木的地區選擇提供瞭一定的理論依據。
통과대불동농도염협박하5충완림관목대화륙도목、빈령、화협호퇴자、산방결명화미질향생리생화지표적측정,결과표명,수착염분적승고,5충완림관목적협록소화류호라복소함량불단하강,대화륙도목화빈령적하강폭도교소,분별위28.8%화17.8%,빈령적협록소함량적변화폭도최소,위21.2%화6.5%。5충완림관목SOD、CAT、POD매활성화가용성단백함량여세포막투성정현저혹겁현저부상관,빈령구유교강적매활성,상술지표최고시가분별체258.0%,58.6%화184.0%。가용성단백대식물적내염정도작용불대。5충완림관목적유리Pro、가용성당、초양음리자자유기함량화MDA균여세포막투성정겁현저화현저상관。재중도염분협박하,빈령적포안산함루량최대,위대조적6배,가용성당적함루량부차우대화륙도목。초양음리자자유기함량화MDA재체내적변화폭도최소,체90%화18.71%,기차시대화륙도목화미질향。인차,세포막수상해정도최소적시빈령、기차시대화륙도목、미질향。화협호지자화산방결명적내염능력교약,불괄응염분교고지구충식。차연구위완림관목적지구선택제공료일정적이론의거。
The impact of salt solution at different concentrations on five garden shrubs（Grandiflora,Maculata,Casin,Rosmarinus and Makino was studied）.The result indicated that the chlorophyll and carotenoids contents were reduced along with the salt concentration.And the decline range of Grandiflora and Makino was small.The chlorophyll content variation of Makino was the minimum.The five garden shrubs contents of SOD,CAT,POD and soluble protein were negatively correlated with the cell membrane permeability.The enzyme active of Makino and Rosmarinus was higher.The soluble protein content was not important in salt resistance.The contents of proline,soluble sugar,MAD activity were negatively correlated with cell membrane permeability.Makino,Rosmarinus and Grandiflora showed an increasing trend.Their superoxide radical changes were small,membrane damage showed a lesser degree.Maculata and Casin showed a poor salt tolerance.
