Eu 3+ Improving Drought Tolerance But Decreasing ODAP Level in Grass Pea (Lathyrus Sativus L.) Seedlings

被引:1
|
作者
熊友才 [1 ]
邢更妹 [2 ]
郑峥 [3 ]
王亚馥 [4 ]
李志孝 [4 ]
李凤民 [5 ]
机构
[1] Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000, China,State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Conservation of Soil and Water, CAS, Yangling 712100, China 
关键词
grass pea; β-N-oxalyl-L-a; β-diaminopropionic acid (ODAP); europium ion (Eu 3+); survival days; stomatal sensitivity; drought tolerance; rare earths;
D O I
暂无
中图分类号
S529 [其他];
学科分类号
0901 ;
摘要
Drought tolerance and toxicity variation of grass pea (Lathyrus Sativus L.) were studied in the presence and absence of earth element Eu 3+ under the pot-culture condition. The addition of exogenous Eu 3+ increases the survival days (SD) and lowered the stomatal sensitivity of grass pea seedlings under the decreasing soil moisture from -0.2 MPa to -1 MPa, suggesting that Eu 3+ can improve the ability of grass pea seedlings to tolerate drought. But in this case, Eu 3+ is found to significantly inhibit the increase in contents of plant toxicity β-N-oxalyl-L-a, β-diaminopropionic acid (ODAP) level in leaves. Therefore, the results demonstrate that Eu 3+ application is a potential agronomic approach to improve drought tolerance while lowering the toxicity level in grass pea productivity.
引用
收藏
页码:502 / 507
页数:6
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