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7 不同时期干旱胁迫对甘薯块根SOD、POD、CAT和APX活性的影响
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Table 7 Effects of drought stress at different stages on activities of SOD, POD, CAT, and APX of storage roots 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 | | 60 | 80 | 100 | 120 | 60 | 80 | 100 | 120 | | WW | SOD酶活性
SOD activity | 1578.09±187.11b | 2234.70±158.95b | 2021.72±150.98 c | 1684.19±123.11a | 707.68±40.21b | 1591.09±131.47b | 1208.37±133.62b | 799.62±78.21b | | DS1 | 1962.34±145.01a | 1888.36±168.39c | 1604.01±160.16d | 1276.19±120.01c | 1176.99±71.21a | 970.67±120.18c | 877.69±121.37c | 582.49±51.21c | | DS2 | 1507.49±141.72b | 2547.50±148.34a | 2161.69±179.62b | 1488.86±131.72b | 744.22±97.88b | 1648.97±141.53a | 1328.97±125.66b | 878.48±44.23b | | DS3 | 1598.28±157.26b | 2256.32±174.22b | 2315.36±156.19a | 1530.47±117.26b | 781.26±78.27b | 1549.15±126.42b | 1605.24±135.68a | 995.16±38.27a | | WW | POD酶活性
POD activity | 557.88±85.46b | 694.32±74.28b | 643.00±54.38c | 535.75±44.16b | 520.82±44.31b | 624.63±54.59b | 577.75±41.54b | 516.25±34.59a | | DS1 | 708.85±94.54a | 659.92±82.14c | 544.73±82.42d | 353.88±34.48c | 629.03±55.57a | 601.75±34.51c | 447.63±54.69c | 343.38±30.36b | | DS2 | 576.60±74.51b | 752.65±94.31a | 673.38±74.54b | 588.88±44.10a | 515.21±56.78b | 673.10±64.26a | 584.50±35.68b | 523.13±44.49a | | DS3 | 572.88±84.33b | 709.75±95.13b | 693.63±74.18a | 568.88±34.65a | 479.20±58.91b | 593.03±81.01c | 640.50±70.15a | 537.75±34.21a | | WW | CAT酶活性
CAT activity | 56.90±4.45b | 89.52±2.86b | 76.74±4.25b | 66.92±2.45b | 53.81±5.98b | 75.74±2.30a | 63.10±4.72a | 58.64±2.45a | | DS1 | 79.35±4.17a | 74.50±3.87c | 68.90±2.20c | 59.78±4.17c | 64.47±4.35a | 57.78±3.12b | 46.66±5.48b | 38.90±2.35b | | DS2 | 58.76±3.45b | 98.84±4.69a | 85.34±2.47a | 70.40±2.46a | 53.69±2.88b | 79.34±1.26a | 68.04±3.88a | 52.12±2.88a | | DS3 | 57.56±2.61b | 84.43±4.94b | 88.42±4.43a | 72.06±4.65a | 54.71±2.78b | 74.82±6.45a | 70.12±2.56a | 55.74±4.78a | | WW | APX酶活性
APX activity | 17.08±1.09b | 30.17±1.21b | 28.91±1.17a | 24.86±0.97a | 16.05±1.67b | 26.25±1.53a | 24.26±1.81a | 21.44±1.67a | | DS1 | 26.93±1.45a | 24.78±2.54c | 22.29±1.47b | 18.24±1.45b | 20.32±1.95a | 19.35±1.07b | 15.40±0.92b | 12.96±1.35b | | DS2 | 17.78±1.89b | 33.60±1.19a | 27.60±1.65a | 22.62±2.27a | 15.53±0.82b | 29.37±0.84a | 21.57±3.26a | 18.39±1.92a | | DS3 | 17.25±1.56b | 29.19±2.39b | 30.96±2.85a | 23.92±2.09a | 15.98±1.52b | 26.70±1.88a | 25.94±2.37a | 19.55±1.55a |
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