不同时期干旱胁迫对甘薯生长和抗氧化能力的影响
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张海燕,解备涛,汪宝卿,董顺旭,段文学,张立明
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Effects of Drought Treatments at Different Growth Stages on Growth and the Activity of Antioxidant Enzymes in Sweetpotato
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HaiYan ZHANG,BeiTao XIE,BaoQing WANG,ShunXu DONG,WenXue DUAN,LiMing ZHANG
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表5 不同时期干旱胁迫对甘薯功能叶SOD、POD、CAT和APX活性的影响
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Table 5 Effects of drought stress at different stages on activities of SOD, POD, CAT, and APX of functional leaves in sweetpotato (U·g-1 FW)
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处理
Treatment | 酶活性
Enzymatic
activity | 栽植后天数 Days after planting（d） | | 济薯21 JS 21 | 济紫薯1号 JZ 1 | | 40 | 60 | 80 | 100 | 40 | 60 | 80 | 100 | | WW | SOD酶活性
SOD activity | 250.56±27.15b | 406.31±26.62b | 385.77±26.75b | 306.22±27.15c | 183.21±28.01b | 289.29±27.43b | 256.07±27.57b | 181.75±26.15c | | DS1 | 320.43±25.39a | 361.52±25.93c | 328.00±25.40c | 286.58±25.39d | 214.00±26.12a | 249.21±26.70c | 214.13±26.13c | 142.27±26.12d | | DS2 | 255.91±26.80b | 445.00±27.23a | 393.03±26.49b | 325.25±26.80b | 171.68±27.63b | 299.81±28.09a | 259.81±22.23b | 214.27±21.63b | | DS3 | 254.23±25.21b | 410.24±26.31b | 420.97±25.14a | 369.18±25.21a | 178.41±25.93b | 281.66±27.11b | 291.86±21.85a | 235.48±20.93a | | WW | POD酶活性
POD activity | 305.25±27.07b | 396.21±17.14b | 362.00±27.19c | 290.50±27.08a | 280.55±17.15b | 349.75±15.30b | 318.50±20.25b | 277.50±17.31b | | DS1 | 405.90±27.23a | 373.28±11.07c | 296.49±21.21d | 169.25±17.24c | 352.69±21.29a | 334.50±17.89c | 231.75±22.12c | 162.25±10.18c | | DS2 | 317.74±17.25b | 421.76±17.16a | 382.25±27.27b | 267.25±27.05b | 276.81±22.30b | 388.73±16.13a | 323.00±23.01b | 308.75±17.24a | | DS3 | 315.25±27.17b | 406.50±17.28b | 395.75±17.09a | 299.25±17.32a | 252.80±25.06b | 348.69±15.24b | 367.00±17.25a | 318.50±17.68a | | WW | CAT酶活性
CAT activity | 19.45±3.15b | 35.76±1.62b | 29.37±2.75b | 24.46±3.15b | 17.91±3.94b | 29.87±1.43b | 23.55±2.57b | 19.32±3.25a | | DS1 | 30.67±1.80a | 28.25±1.93c | 25.45±1.40c | 20.89±3.39c | 23.24±2.12a | 19.89±1.70c | 14.33±3.13c | 10.45±3.12b | | DS2 | 20.38±1.58b | 40.42±3.23a | 33.67±1.49a | 27.20±2.80a | 17.84±1.63b | 35.67±1.09a | 25.52±2.29b | 20.56±1.63a | | DS3 | 19.78±0.63b | 33.21±2.31b | 35.21±2.14a | 29.53±3.21a | 18.35±2.93b | 30.41±2.11b | 29.56±1.85a | 21.87±2.93a | | WW | APX酶活性
APX activity | 9.73±1.20b | 18.88±0.81b | 16.69±1.38a | 14.23±1.58a | 8.95±2.01b | 16.94±0.72a | 13.78±1.79ab | 11.66±1.02a | | DS1 | 15.34±0.61a | 14.12±0.97c | 12.73±0.70b | 10.45±1.70bc | 11.62±1.06a | 9.95±0.85b | 7.17±0.56c | 5.23±1.09c | | DS2 | 10.19±1.21b | 20.21±1.62a | 15.84±0.75a | 11.60±1.40b | 8.92±0.81b | 17.84±0.54a | 12.76±0.45b | 9.28±0.81b | | DS3 | 9.89±1.06b | 16.61±1.16bc | 17.61±1.07a | 12.77±1.61ab | 9.18±1.46b | 16.21±1.06a | 14.78±0.93a | 10.94±1.96ab |
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