Exogenous spermidine enhanced Pb tolerance in Salix matsudana by promoting Pb accumulation in roots and spermidine, nitric oxide, and antioxidant system levels in leaves
Research Foundation of Education Department of Hunan Province, China [16A221]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51608208]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2017M610513]
机构署名：
本校为第一且通讯机构
院系归属：
生命科学与技术学院
环境科学与工程学院
摘要：
The protective role of spermidine addition in media to Salix matsudana exposed to Pb was investigated by a hydroponic experiment in this study. The application of spermidine enhanced the biomass of S. matsudana exposed to Pb. Pb induced an increase in Pb levels in all organs of S. matsudana with the order of roots (maximum of 27616.0 mg/kg DW) > cuttings > twigs > leaves. Exogenous spermidine promoted the accumulation of Pb in the roots, but inhibited the Pb translocation to the shoots and thus the Pb content in the twigs and leaves. The Pb-induced d...
