农业环境科学学报2025，Vol.44Issue(1)：41-49,9.DOI:10.11654/jaes.2024-0690
硒、硅、锶对镉胁迫下羊肚菌菌丝生长的影响
Effects of selenium,silicon and strontium on the mycelial growth of morel mushroom under cadmium stress
摘要
Abstract
Soil cadmium(Cd)poses a potential threat to the production and product quality of morel,and how to effectively control Cd level is an urgent problem in morel industry.In this study,the mycelium of Morchella sextelata was selected as the experimental material.The aim of this study was to investigate the effects of selenium(Se),silicon(Si)and strontium(Sr)on the growth and Cd enrichment of Morchella sextelata mycelium under Cd stress in PDA plate culture and PDB liquid culture.The results showed that the growth rate,mycelial morphology and biomass of the mycelium were significantly inhibited,and the malondialdehyde(MDA)levels were significantly increased after Cd treatment,indicating that Cd stress resulted in the damage effects on the mycelium of Morchella sextelata.Compared with individual Cd treatment,different concentrations of Se+Cd treatment increased the mycelial biomass by 25.79%-35.71%and decreased MDA content by 48.10%-219.68%;different concentrations of Si+Cd increased mycelial biomass by 25.79%-30.55%and decreased MDA levels by 65.08%-102.85%;different concentrations of Sr+Cd made the colony densities and radii being increased and the edges being neat.Meanwhile,the mycelial biomass were increased by 3.57%-23.01%,the MDA content was decreased by 13.03%-42.8%,and the Cd uptake was decreased by 26.29%-32.15%.The present study showed that the addition of Se,Si and Sr could improve the growth of Morchella sextelata mycelium under Cd stress.Notably,the addition of Sr significantly reduced Cd uptake and enrichment in Morchella sextelata.This study provides new ideas and technical approach for the effective control of Cd in Morchella sextelata.关键词
有益元素/镉/羊肚菌/生长特性/富集Key words
beneficial element/cadmium/Morchella esculenta/growth characteristic/enrichment分类
园艺学与植物营养学引用本文复制引用
姜力煌,范婷婷,赵晓燕,周昌艳,张津京,赵志勇,杨凌宸..硒、硅、锶对镉胁迫下羊肚菌菌丝生长的影响[J].农业环境科学学报,2025,44(1):41-49,9.基金项目
上海市科学技术委员会启明星项目(22QB1402200) The Shanghai Rising-Star Program(22QB1402200) （22QB1402200）
