木麻黄幼苗渗透调节物对酸雨胁迫的响应研究

基金项目: 福建省自然科学基金重点项目(D0120001)与泉州师范学院基金项目(2002LI04)资助

Osmoregulation changes in Casuarina equisetifolia seedlings under acid rain stress

摘要: 对模拟pH2.5～4.5酸雨胁迫3个月后木麻黄幼苗渗透调节物含量测定结果表明，pH4.0～4.5酸雨胁迫后木麻黄幼苗小枝可溶性糖含量显著低于对照，但(pH2.5～3.5)酸雨胁迫后其含量显著高于对照；与对照相比酸雨胁迫使木麻黄幼苗小枝可溶性蛋白质含量增加，游离脯氨酸和谷胱甘肽含量则极显著增加。酸雨胁迫下木麻黄幼苗具有积累较高浓度的有机渗透调节物及改善渗透调节的生理应答能力。
- 木麻黄 /
- 渗透调节物 /
- 酸雨胁迫 /
- 抗逆性
Abstract: The osmoregulation matters were investigated in Casuarina equisetifolia seedlings under acid rain stress with a series of acidity (pH2.5～4.5)for 3 months.The results show that the soluble sugar contents in seedling twigs under acid rain stess with low acidity are lower than that of control,however,it is significantly higher under moderate and intensive acid rain stress.The soluble protein contents of the twigs increase under the treatment of acid rain,and the proline and GSH contents increase as well. The high concentration of osmoregulation matters in Casuarina equisetifolia seedlings under acid rain stress is accumulated to improve the physiological responses of osmoregulatants.
- Casuarina equisetifolia /
- Osmoregulation /
- Acid rain stress /
- Resistance

1.	姜坤，戴文远，胡秋凤，黄康，欧惠. 浙闽山地丘陵区地形因子对土地利用格局的影响分析:以福建省永泰县为例. 生态与农村环境学报. 2019(06): 707-715 . 百度学术
2.	王盼盼，宋戈. 1979-2015年松嫩高平原土地利用格局变化及影响因子分析. 农业工程学报. 2018(02): 256-264 . 百度学术
3.	许尔琪，张红旗. 喀斯特山地土地利用变化的垂直分布特征. 中国生态农业学报. 2016(12): 1693-1702 . 百度学术