食用菌学报2025，Vol.32Issue(1)：35-43,9.DOI:10.16488/j.cnki.1005-9873.2025.01.005
棕榈拟盘多毛孢对羊肚菌生长的影响
Effect of Pestalotiopsis trachicarpicola on Growth of Morchella sextelata
摘要
Abstract
The effects of pathogenic Pestalotiopsis trachicarpicola WLM5 on Morchellas extelata were studied in terms of mycelial damage,ascocarp infection,response of mycelia to fermentation and volatile products of P.trachicarpicola,and activities of defense enzymes.Utilization of M.extelata extract by P.trachicarpicola and activities of its cell wall degrading enzymes during infection were also measured.The results showed that hyphae of WLM5 intertwined with those of M.extelata,making them shrivel and wilt.WLM5 infection also resulted in destruction of ascocarp tissue structure.The fermentation liquid of P.trachicarpicola inhibited the mycelial growth of M.extelata by 7.6％,and the volatile product of P.trachicarpicola resulted in sparse mycelia and decreased aerial hyphae at 6 d.For the infected M.extelata ascocarps,the activity of SOD reached the highest at 2 d;the activity of POD was the highest at 1 d;and the activity of CAT was the lowest at 2 d.In the experimental range(72 h),M.extelata extract promoted the germination of WLM5 conidia.After infection,WLM5 produced cell wall degrading enzymes,and the activities of neutral protease,β-1,3 glucanase and chitinase were the highest at 15 d,6 d and 12 d,respectively.These results provided a reference for exploring the pathogenic mechanism of P.trachicarpicola.关键词
羊肚菌/棕榈拟盘多毛孢/菌丝皱缩/防御酶/细胞壁降解酶Key words
Morel/Pestalotiopsis trachicarpicola/mycelium shrivel/defense enzymes/cell wall degrading enzymes引用本文复制引用
李冰寒,梁珍,刘玥,赵坤,李林辉..棕榈拟盘多毛孢对羊肚菌生长的影响[J].食用菌学报,2025,32(1):35-43,9.基金项目
武胜县2021年大中型水库移民后期扶持项目(MGJ-谈[2019]-03号) （MGJ-谈[2019]-03号）
