[1]袁洁,吴晓晴,石琨,等.丛枝菌根真菌对甘薯生物量、养分吸收和根系分泌物的影响[J].江苏农业学报,2024,(11):2073-2082.[doi:doi:10.3969/j.issn.1000-4440.2024.11.011]
　YUAN Jie,WU Xiaoqing,SHI Kun,et al.Effects of arbuscular mycorrhizal fungi on biomass, nutrient uptake and root exudates of Ipomoea batatas L.[J].,2024,(11):2073-2082.[doi:doi:10.3969/j.issn.1000-4440.2024.11.011]
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丛枝菌根真菌对甘薯生物量、养分吸收和根系分泌物的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年11期
页码:
2073-2082
栏目:
耕作栽培·资源环境
出版日期:
2024-11-30

文章信息/Info

Title:
Effects of arbuscular mycorrhizal fungi on biomass, nutrient uptake and root exudates of Ipomoea batatas L.
作者:
袁洁1; 吴晓晴1; 3; 石琨1; 2; 王磊1; 纪程1; 钟月华1; 冯冰1; 朱国鹏2; 孙丽1; 汪吉东1; 张永春1
(1.江苏省农业科学院农业资源与环境研究所/农业农村部江苏耕地保育科学观测实验站,江苏南京210014；2.海南大学园艺学院, 海南海口570228；3.南京农业大学,江苏南京210095)
Author(s):
YUAN Jie1; WU Xiaoqing1; 3; SHI Kun1; 2; WANG Lei1; JI Cheng1; ZHONG Yuehua1; FENG Bing1; ZHU Guopeng2; SUN Li1; WANG Jidong1; ZHANG Yongchun1
(1.Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences/Scientific Observing and Experimental Station of Arable Land Conservation (Jiangsu), Ministry of Agriculture and Rural Affairs, Nanjing 210014, China；2.College of Horticulture, Hainan University, Haikou 570228, China；3.Nanjing Agricultural University, Nanjing 210095, China)
关键词:
甘薯; 丛植菌根真菌; 根系分泌物; 非靶向代谢组
Keywords:
sweet potato Ipomoea batatas L.; arbuscular mycorrhizal fungi; root exudates; non-targeted metabolomics
分类号:
S154.3；S531
DOI:
doi:10.3969/j.issn.1000-4440.2024.11.011
文献标志码:
A
摘要:
为探究丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)对甘薯生长发育的影响,本研究在低钾(K0)和高钾(K1)土壤中,分别接种丛枝菌根真菌幼套近明球囊霉(Claroideoglomus etunicatum),测定甘薯生物量和氮、磷、钾吸收量、根系分泌物。结果表明,丛枝菌根真菌能够显著提高甘薯根系干重和根系氮、磷、钾吸收量(P＜0.05),根系丛枝菌根真菌定殖率与根系氮、磷、钾吸收量呈极显著正相关(P＜0.01)。丛枝菌根真菌幼套近明球囊霉对甘薯根系分泌物中脂质和类脂分子、有机杂环化合物影响明显。在低钾土壤中,丛枝菌根真菌幼套近明球囊霉主要影响宿主植物膜转运蛋白、矿物质吸收；在高钾土壤中,丛枝菌根真菌幼套近明球囊霉主要影响宿主植物的植物激素合成、植物次级代谢产物合成。甘薯丛枝菌根真菌定殖率、甘薯根系氮、磷、钾吸收量与环烯醚萜苷Caryoptosidic acid、6-反式-白三烯B4、白三烯B4、2-羟基-4-甲基戊酸、网脉碱、L-阿糖醇、托品酸、橙皮素、坎松醇F的相关性较强,这些代谢物可能在丛枝菌根真菌定殖甘薯根系过程中发挥关键作用。本研究有助于解析丛枝菌根真菌的促生作用及其在生态系统中的潜在生态功能,为丛枝菌根真菌在甘薯生产中的应用提供理论依据。
Abstract:
To explore the impact of arbuscular mycorrhizal fungi (AMF)on the growth and development of Ipomoea batatas L., Claroideoglomus etunicatum （a kind of AMF) was inoculated respectively in low-potassium (K0) and high-potassium (K1) soils, and the biomass, uptake amounts of nitrogen, phosphorus, potassium and root exudates of Ipomoea batatas L. were measured in this study. The results showed that arbuscular mycorrhizal fungi could significantly increase the dry weight of Ipomoea batatas L. roots and the nitrogen, phosphorus and potassium uptake amounts of the roots (P＜0.05). There was an extremely significant positive correlation between the colonization rate of arbuscular mycorrhizal fungi in the roots and the nitrogen, phosphorus and potassium uptake amounts of the roots (P＜0.01). Claroideoglomus etunicatum, the arbuscular mycorrhizal fungus, had a significant impact on lipid and lipid-like molecules and organic heterocyclic compounds in the root exudates of Ipomoea batatas L.. In low-potassium soil, Claroideoglomus etunicatum mainly affected the membrane transport proteins and mineral absorption of the host plants; in high-potassium soil, it mainly influenced the synthesis of plant hormones and the synthesis of plant secondary metabolites of the host plants. The colonization rate of arbuscular mycorrhizal fungi in Ipomoea batatas L., as well as the nitrogen, phosphorus and potassium uptake amounts of sweet potato roots, had a relatively strong correlation with Caryoptosidic acid, 6-trans-leukotriene B4, leukotriene B4, 2-hydroxy-4-methylvaleric acid, reticuline, L-arabitol, tropic acid, hesperetin and kanzonol F. These metabolites may play a key role in the process of arbuscular mycorrhizal fungi colonizing the roots of Ipomoea batatas L.. This study is helpful for analyzing the growth-promoting effect of arbuscular mycorrhizal fungi and its potential ecological functions in the ecosystem, and provides a theoretical basis for the application of arbuscular mycorrhizal fungi in Ipomoea batatas L. production.

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备注/Memo

备注/Memo:
收稿日期：2024-07-05基金项目：江苏省农业科学院资环所青年联合创新项目[ZCX(2022)21]作者简介：袁洁(1990-),女,江苏如东人,博士,助理研究员,研究方向为甘薯根际微生态。(E-mail)yuanjie@jaas.ac.cn通讯作者：汪吉东,(E-mail)jdwang66@163.com； 张永春,(E-mail)zhang66@sina.com
更新日期/Last Update: 2025-01-20