生物技术通报 ›› 2022, Vol. 38 ›› Issue (1): 132-140.doi: 10.13560/j.cnki.biotech.bull.1985.2021-0351

• 研究报告 • 上一篇    下一篇

磷水平与丛枝菌根真菌对桔梗生长及品质的影响

李楠海(), 孙卓(), 杨利民()   

  1. 吉林农业大学中药材学院,长春 130118
  • 收稿日期:2021-03-20 出版日期:2022-01-26 发布日期:2022-02-22
  • 作者简介:李楠海,男,硕士研究生,研究方向:植物生态学;E-mail: 592365150@qq.com
  • 基金资助:
    国家现代农业产业技术体系(CARS-21)

Effects of Phosphorus Level and Arbuscular Mycorrhizal Fungi on the Growth and Quality of Platycodon grandiflorum

LI Nan-hai(), SUN Zhuo(), YANG Li-min()   

  1. College of Chinese Materials,Jilin Agricultural University,Changchun 130118
  • Received:2021-03-20 Published:2022-01-26 Online:2022-02-22

摘要:

明确不同磷水平条件下接种丛枝菌根真菌(AMF)对桔梗质量与产量的影响。采用盆栽法,设计P0(20 mg/kg)、P1(50 mg/kg)、P2(80 mg/kg)、P3(140 mg/kg)共4个磷水平,同一磷水平分别接种摩西斗管囊霉(Funneliformis mosseae,FM)、根内根孢囊霉(Rhizophagus intraradices,RI)、象牙白多样孢囊霉(Diversispora eburnea,DE)和不接种处理。测定不同处理丛枝菌根真菌侵染率、桔梗的生物量、桔梗抗逆性指标、桔梗皂苷含量等指标。在80 mg/kg水平时,丛枝菌根真菌FM、RI及DE对桔梗的侵染率最高,分别为57.7%、38.3%、41.7%;3种AMF对桔梗产量及皂苷含量均具有显著影响,与未接种对照相比,桔梗根鲜重分别增加114%、62%、90%(P<0.05),桔梗皂苷D 含量分别提高20%、18%、16%;3种AMF可显著提高桔梗SOD、POD等保护酶活性,降低脯氨酸、丙二醛含量,提升了植物抗逆性。在80 mg/kg磷水平,接种丛枝菌根真菌FM、RI及DE的效果最佳,且接种FM的桔梗在产量和质量方面优于RI和DE。

关键词: AM真菌, 磷水平, 桔梗, 桔梗皂苷

Abstract:

The aim of this work is to clarify the effects of different phosphorus levels and inoculations of Arbuscular Mycorrhizal Fungi(AMF)on the quality and yield of Platycodon grandiflorum. We used pot method to conduct experiment. There were 4 soil phosphorus levels,P0(20 mg/kg),P1(50 mg/kg),P2(80 mg/kg),and P3(140 mg/kg). Funneliformis mosseae,Rhizophagus intraradices,Diversispora eburnea were inoculated into each soil phosphorus level and no inoculation were set as control group(CK). The infection rate of AMF,the biomass of P. grandiflorum,the resistance index of P. grandiflorum,and the content of P. grandiflorum platycodin in different treatments were determined. At the level of 80 mg/kg,AMF F. mosseae,R. intraradices and D. eburnea had the highest infection rates on P.grandiflorum,which were 57.7%,38.3%,41.7%. The three types of AMF had significant effects on the yield and platycodin content of P. grandiflorum. Compared with the uninoculated control,the fresh weight of P. grandiflorum root increased by 114%,62%,and 90%(P<0.05)respectively. Platycodin D content increased by 20%,18%,and 16%,respectively. Three types of AMF significantly increased the activities of protective enzymes such as SOD and POD,decreased the content of proline and malondialdehyde,thus enhanced the plant stress resistance. Soil phosphorus level 80 mg/kg was the best for the inoculation effect of F. mosseae,R. intraradices and D. eburnea. In addition,inoculating F. mosseae was superior to inoculating R. intraradices and D. eburnea on yield and quality of P. grandiflorum.

Key words: arbuscular mycorrhizal fungi, phosphorus level, Platycodon grandiflorum, platycodin