CAJ | 학술논문

柠条锦鸡儿(Caragana korshinskii)、白皮锦鸡儿(C.leucophloea)、刺叶锦鸡儿(C.acanthophylla)和长枝木蓼(Atraphaxis virgata)是乌鲁木齐周边植被组成中的重要植物种,在植被恢复中具有潜在价值.研究通过人工控制水分比较这4种灌木对干旱胁迫的生理响应,结果表明:叶片的组织含水量和叶绿素含量随着干旱胁迫的加剧而降低;脯氨酸在干旱胁迫下的积累程度较可溶性糖大;除刺叶锦鸡儿外其它植物幼苗的丙二醛在干旱胁迫下均无明显的积累(P>0.05).4种灌木在干旱胁迫下通过渗透调节、保持膜系统稳定等途径维持正常的生理活动,对干旱具有一定的适应能力.4种灌木抗旱能力的排序为白皮锦鸡儿>柠条锦鸡儿>长枝木蓼>刺叶锦鸡儿.
저조금계인(Caragana korshinskii)、백피금계인(C.leucophloea)、자협금계인(C.acanthophylla)화장지목료(Atraphaxis virgata)시오로목제주변식피조성중적중요식물충,재식피회복중구유잠재개치.연구통과인공공제수분비교저4충관목대간한협박적생리향응,결과표명:협편적조직함수량화협록소함량수착간한협박적가극이강저;포안산재간한협박하적적루정도교가용성당대;제자협금계인외기타식물유묘적병이철재간한협박하균무명현적적루(P>0.05).4충관목재간한협박하통과삼투조절、보지막계통은정등도경유지정상적생리활동,대간한구유일정적괄응능력.4충관목항한능력적배서위백피금계인>저조금계인>장지목료>자협금계인.
Caragana korshinskii, C. leucophloea, C. acanthophylla and Atraphaxis virgata are four important species composed of vegetation around Urumqi, and they have a great potential in recovering degraded vegetation. In this study, physiological responses of four shrub seedlings to artificially simulated drought stress were studied. The results showed that leaf water content and chlorophyll content of four shrub seedlings decreased with increased drought stress. Proline accumulation was much more significant than soluble sugars under drought stress conditions. MDA accumulation was not significant (P>0.05) for all shrub seedlings except C. acanthophylla. Our results indicated that four shrubs can adapt to arid environments by adopting different strategies under drought stress conditions, and that drought resistance in descending order of four shrubs was C. leucophloe > C. korshinskii > A. virgata > C. acanthophylla.