Analysis of the molecular and biochemical mechanisms involved in the symbiotic relationship between Arbuscular mycorrhiza fungi and Manihot esculenta Crantz
文献类型： 外文期刊
作者： Gao, Yu 1 ; Huang, Siyuan 2 ; Wang, Yujie 1 ; Lin, Hongxin 3 ; Pan, Zhiyong 4 ; Zhang, Shubao 1 ; Zhang, Jie 2 ; Wang, Wenquan 2 ; Cheng, Shanhan 1 ; Chen, Yinhua 1 ;
作者机构： 1.Hainan Univ, Sanya Nanfan Res Inst, Sch Life Sci, Haikou, Hainan, Peoples R China
2.Hainan Univ, Coll Trop Crops, Haikou, Hainan, Peoples R China
3.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang, Jiangxi, Peoples R China
4.Huazhong Agr Univ, Coll Hort & Forestry, Wuhan, Peoples R China
关键词： cassava; symbiosis; arbuscular mycorrhiza; transcriptome; metabolome; candidate gene; fungi
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）
ISSN： 1664-462X
年卷期： 2023 年 14 卷
页码：
收录情况： SCI
摘要： IntroductionPlants and arbuscular mycorrhizal fungi (AMF) mutualistic interactions are essential for sustainable agriculture production. Although it is shown that AMF inoculation improves cassava physiological performances and yield traits, the molecular mechanisms involved in AM symbiosis remain largely unknown. Herein, we integrated metabolomics and transcriptomics analyses of symbiotic (Ri) and asymbiotic (CK) cassava roots and explored AM-induced biochemical and transcriptional changes. ResultsThree weeks (3w) after AMF inoculations, proliferating fungal hyphae were observable, and plant height and root length were significantly increased. In total, we identified 1,016 metabolites, of which 25 were differentially accumulated (DAMs) at 3w. The most highly induced metabolites were 5-aminolevulinic acid, L-glutamic acid, and lysoPC 18:2. Transcriptome analysis identified 693 and 6,481 differentially expressed genes (DEGs) in the comparison between CK (3w) against Ri at 3w and 6w, respectively. Functional enrichment analyses of DAMs and DEGs unveiled transport, amino acids and sugar metabolisms, biosynthesis of secondary metabolites, plant hormone signal transduction, phenylpropanoid biosynthesis, and plant-pathogen interactions as the most differentially regulated pathways. Potential candidate genes, including nitrogen and phosphate transporters, transcription factors, phytohormone, sugar metabolism-related, and SYM (symbiosis) signaling pathway-related, were identified for future functional studies. DiscussionOur results provide molecular insights into AM symbiosis and valuable resources for improving cassava production.
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