Author:
Pu Chunjuan,Yang Guang,Li Pengying,Ge Yang,Garran Thomas Avery,Zhou Xiuteng,Shen Ye,Zheng Han,Chen Meilan,Huang Luqi
Abstract
AbstractSalvia miltiorrhiza Bunge (danshen in Chinese) is one of the most important medicinal cash crops in China. Previously, we showed that arbuscular mycorrhizal fungi (AMF) can promote S. miltiorrhiza growth and the accumulation of bioactive compounds. Fertilization may affect mycorrhizal efficiency, and appropriate doses of phosphate (P) and nitrogen (N) fertilizers are key factors for obtaining mycorrhizal benefits. However, the optimal fertilization amount for mycorrhizal S. miltiorrhiza remains unclear. In this study, we studied the effects of AMF on the growth and bioactive compounds of S. miltiorrhiza under different doses (low, medium, and high) of P and N fertilizer. The results showed that the mycorrhizal growth response (MGR) and mycorrhizal response of bioactive compounds (MBC) decreased gradually with increasing P addition. Application of a low (N25) dose of N fertilizer significantly increased the MGR of mycorrhizal S. miltiorrhiza, and a medium (N50) dose of N fertilizer significantly increased the MBC of phenolic acids, but decreased the MBC of tanshinones. Our results also showed that the existence of arbuscular mycorrhiza changes nutrient requirement pattern of S. miltiorrhiza. P is the limiting nutrient of non-mycorrhizal plants whereas N is the limiting nutrient of mycorrhizal plants.
Funder
National Natural Science Foundation of China
Project of the National Resource Center for Chinese Materia Medica
Research Funds from the Central Public Welfare Research Institutes
Scientific and Technological Innovation Project of China Academy of Chinese Medical Sciences
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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