LI Yu-shu,ZOU Yuan-dong.Effect of Low Temperature Stress on Electrical Conductivity and Antioxidant Enzyme Activity of Hibiscus syriacus [J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(09):82-85.[doi:10.11942/j.issn1002-2767.2016.09.0082]
低温胁迫对木槿电导率和抗氧化酶活性的影响
- Title:
- Effect of Low Temperature Stress on Electrical Conductivity and Antioxidant Enzyme Activity of Hibiscus syriacus
- 文章编号:
- 1002-2767(2016)09-0082-04
- 分类号:
- S685.99
- 文献标志码:
- A
- 摘要:
- 为探讨木槿在寒冷环境下的生长状况,通过对木槿插穗沙藏后的不同低温处理,测定了电导率、超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)等指标并进行了分析,并对低温处理后的枝条进行萌芽试验。结果表明:随着温度的降低,所有木槿品种的电导率数值升高;B-3、B-5、X的数值上升缓慢,不同温度间的数值差较小:SOD活性先升高后下降,B-3、X与其它品种差异显著(P<0.05);B-3、B-5、X三个品种随着温度的下降,CAT活性先上升后缓慢下降,B-3和其它品种的差异显著(P<0.05);所有品种随着温度的降低POD活性先升高后下降,B-3和其它品种的差异显著(P<0.05)。B-3、X在抵御冷害方面能力较强。
- Abstract:
- In order to study the growth status of Hibiscus syriacus in cold environment,through different low temperature treatments in sand-store cuttings,the electrical conductivity,SOD,POD and CAT were tested and analyzed,branches of germination of Hibiscus syriacus test were determined.The results showed that electrical conductivity of all varieties increased with decreasing temperature,B-3,B-5 and X increased slower than other varieties,the change between different low temperature was smaller.The SOD activity first increased then decreased in all varieties,B-3,X and other varieties had significant difference(P<0.05). With decreasing temperature,the CAT activity of B-3,B-5,X first increased then decreased slowly,B-3 and other varieties had significant difference(P<0.05). The POD activity of all varieties first increased then decreased when the temperature fell down,B-3 and other varieties had significant difference(P<0.05). B-3 and X were more cold-resistant than other varieties.
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备注/Memo
收稿日期:2016-05-22