不同时期干旱胁迫对甘薯生长和抗氧化能力的影响
张海燕,解备涛,汪宝卿,董顺旭,段文学,张立明

Effects of Drought Treatments at Different Growth Stages on Growth and the Activity of Antioxidant Enzymes in Sweetpotato
HaiYan ZHANG,BeiTao XIE,BaoQing WANG,ShunXu DONG,WenXue DUAN,LiMing ZHANG
表6 不同时期干旱胁迫对甘薯纤维根SOD、POD、CAT和APX活性的影响
Table 6 Effects of drought stress at different stages on activities of SOD, POD, CAT, and APX of fibrous roots in sweetpotato (U·g-1 FW)
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
1429.78±289.17b 3253.62±216.59b 3079.03±219.65c 2402.85±209.17b 957.32±209.41b 2658.95±251.61b 2376.57±290.23b 1944.87±209.41c
DS1 2223.62±247.28a 2372.93±230.24c 2088.02±193.45d 1835.93±247.28d 1218.98±264.59a 1318.31±248.45c 1120.07±264.85c 1009.31±264.59d
DS2 1475.21±280.84b 3582.50±201.07a 3140.79±247.52b 2564.61±280.84c 859.25±245.56b 2848.40±244.89a 2408.41±229.61b 2121.29±245.63b
DS3 1460.97±243.04b 3287.04±219.26b 3378.28±273.46a 2938.00±243.04a 916.50±260.21b 2694.14±211.45b 2580.82±258.27a 2201.61±260.05a
WW POD酶活性
POD activity
1115.75±101.22b 1388.63±61.41b 1286.00±241.38b 1071.50±81.24c 1041.64±71.44b 1249.25±91.89b 1155.5±81.76b 1092.5±71.89a
DS1 1417.70±90.68a 1319.84±83.21bc 1089.47±84.45c 707.75±71.73d 1258.07±72.15a 1103.50±81.77c 795.25±93.35c 586.75±50.54b
DS2 1153.207±71.76b 1565.29±77.47a 1446.75±83.62a 1201.75±89.16a 1030.42±98.69b 1366.19±71.39a 1169.00±65.89b 1126.25±71.73a
DS3 1145.75±89.54b 1419.50±65.85b 1387.25±75.81a 1107.75±71.97b 958.40±45.62b 1186.06±71.73bc 1301.00±75.76a 1155.5±84.56a
WW CAT酶活性
CAT activity
90.35±12.45b 149.27±7.86b 130.11±71.28b 125.38±12.45a 85.72±11.52b 131.61±7.30b 122.65±10.05b 109.96±11.23a
DS1 134.69±9.17a 125.00±8.80c 113.80±8.13c 95.56±11.17b 104.95±9.35a 91.56±8.11c 69.32±7.38c 53.80±9.35b
DS2 93.51±8.40b 173.68±12.69a 146.68±7.20a 128.80±10.40a 83.37±7.88b 145.68±6.26a 124.08±9.88b 114.24±7.88a
DS3 91.12±6.64b 144.86±9.94b 152.84±7.47a 130.12±9.64a 85.42±8.78b 133.64±5.32b 130.24±8.56a 119.48±6.78a
WW APX酶活性
APX activity
35.12±4.15b 64.76±2.62b 59.37±8.43a 54.79±4.15a 33.57±4.21b 49.87±2.43b 47.88±3.57b 44.65±3.06a
DS1 49.90±3.39a 46.67±2.93c 42.93±2.71c 36.85±3.38b 39.98±3.05a 35.52±2.15c 28.11±4.13c 22.93±4.12c
DS2 36.17±2.80b 72.89±4.23a 53.89±2.40b 47.93±2.45a 32.79±2.63b 53.56±2.75a 44.36±3.29b 39.08±2.63b
DS3 35.37±2.21b 63.29±3.31b 60.95±2.49a 49.37±3.21a 33.47±3.11b 49.55±4.15b 50.41±2.85a 40.83±4.59b