Regional variations and plant compartments shape the community structures of the endophytic microbiome and secondary metabolites of Astragalus mongholicus

Li, Yanmei; Jin, Juan; Li, Pei-Rong; Wang, Qian; Xu, Leilei; Wei, Gehong; Li, Zhe‐Fei

doi:10.1016/j.indcrop.2022.116037

Cited by 14 publications

(3 citation statements)

References 92 publications

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“…Although diverse microbes colonize the seed and settle there, only a few become communists through vertical transmission (Zhang et al, 2022 ). Furthermore, microbes access the seed endosphere by increasing the chance of colonization pattern after inoculation (Li et al, 2023 ). The colonization of microorganisms in plants involves recruitment, attachment, entry (mainly through natural discontinuities like root hairs, stomata and wounds) and occupation (Kandel et al, 2017 ).…”

Section: Why Do Microbes Choose Seeds As Their Destination and When D...mentioning

confidence: 99%

The seed microbiomes of staple food crops

Sun,

Adeleke,

Shi

et al. 2023

Microbial Biotechnology

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The scientific community increasingly recognized that seed microbiomes are important for plant growth and nutrition. The versatile roles and modulating properties that microbiomes hold in the context of seeds seem to be an inherited approach to avert adverse conditions. These discoveries attracted extensive interest, especially in staple food crops (SFCs) where grain was consumed as food. Along with the rapid expansion of population and industrialization that posed a severe challenge to the yield of SFCs, microbiologists and botanists began to explore and engineer seed microbiomes, for safer and more fruitful grain production. To utilize seed microbiomes, we present an overall review of the most updated scientific literature on three representative SFCs (wheat, rice and maize) using the 5W1H (Which, Where, What, Why, When and How) method that provides a comprehensive understanding of the issue. These include which factors determine the composition of seed microbiomes? Where do seed microbiomes come from? What are these seed microbes? Why do these microbes choose seeds as their destination and when do microbes settle down and become seed communists? In addition, how do seed microbiomes work and can be manipulated effectively? Therefore, answering the aforementioned questions regarding SFCs seed microbiomes remain fundamental in bridging endophytic research gaps and harnessing their ecological services.

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Section: Why Do Microbes Choose Seeds As Their Destination and When D...mentioning

confidence: 99%

The seed microbiomes of staple food crops

Sun,

Adeleke,

Shi

et al. 2023

Microbial Biotechnology

View full text Add to dashboard Cite

show abstract

“…Recent research has shown that plant–microbe interactions can improve biomass and tanshinone production in Salvia miltiorrhiza ( Chen H. M. et al, 2018 ; Huang et al., 2018 ). To date, numerous studies have been conducted to investigate the relationship between microbiome communities and bioactive compounds found in medicinal plants ( Cui et al., 2019 ; Zhang et al., 2020 ; Zhang Y. H. et al, 2020 ; Li et al., 2021 ; Cui et al., 2023 ; Li et al., 2023 ; Zhang H. et al., 2023 ). However, the composition characteristics and diversity of rhizosphere and root microbiome communities, as well as their relationship with the major active compounds in P. amurense , remain largely unknown.…”

Section: Introductionmentioning

confidence: 99%

Integrated microbiome and metabolomics analysis reveal the relationship between plant-specialized metabolites and microbial community in Phellodendron amurense

Zhang,

Gao,

Tian

et al. 2024

Front. Plant Sci.

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Phellodendron amurense is the essential source of bisbenzylisoquinoline alkaloids (BIAs), making it a highly valued raw material in traditional Chinese medicine. The plant’s root secondary metabolism is intricately linked to the microbial communities that surround it. However, the root-associated microbiomes of P. amurense, as well as the potential correlation between its bioactive compounds and these microbiomes, remain poorly understood. Here, the metabolic profiles of root, rhizosphere, and bulk soils of P. amurense revealed the dramatic differences in the relative content of plant-specialized metabolites. A total of 31, 21, and 0 specialized metabolites in P. amurense were identified in the root, rhizosphere soil, and bulk soil, respectively, with higher content of the seven major BIAs observed in the rhizosphere compared with that in the bulk soils. The composition of the bulk and rhizosphere microbiomes was noticeably distinct from that of the endospheric microbiome. The phylum Cyanobacteria accounted for over 60% of the root endosphere communities, and the α-diversity in root was the lowest. Targeted seven BIAs, namely, berberine, palmatine, magnocurarine, phellodendrine, jatrorrhizine, tetrahydropalmatine, and magnoflorine, were significantly positively correlated with Nectriaceae and Sphingobacteriaceae. This study has illuminated the intricate interaction networks between P. amurense root-associated microorganisms and their key chemical compounds, providing the theoretical foundation for discovering biological fertilizers and laying the groundwork for cultivating high-quality medicinal plants.

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“…have been reported to provide adaptive benefits to plants, including growth promotion and tolerance . In addition, the composition of the medicinal plant-associated microbiomes is a critical factor that affects the content of medicinal constituents …”

Section: Introductionmentioning

confidence: 99%

Alleviation of Salt Stress and Changes in Glycyrrhizic Acid Accumulation by Dark Septate Endophytes in Glycyrrhiza glabra Grown under Salt Stress

Tan,

Yue,

et al. 2024

J. Agric. Food Chem.

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This study aimed to investigate the mechanisms by which dark septate endophytes (DSE) regulate salt tolerance and the accumulation of bioactive constituents in licorice. First, the salt stress tolerance and resynthesis with the plant effect of isolated DSE from wild licorice were tested. Second, the performance of licorice inoculated with DSE, which had the best salt-tolerant and growth-promoting effects, was examined under salt stress. All isolated DSE showed salt tolerance and promoted plant growth, with Curvularia lunata D43 being the most effective. Under salt stress, C. lunata D43 could promote growth, increase antioxidant enzyme activities, enhance glycyrrhizic acid accumulation, improve key enzyme activities in the glycyrrhizic acid synthesis pathway, and induce the expression of the key enzyme gene and salt tolerance gene of licorice. The structural equation model demonstrated that DSE alleviate the negative effects of salt stress through direct and indirect pathways. Variations in key enzyme activities, gene expression, and bioactive constituent concentration can be attributed to the effects of DSE. These results contribute to revealing the value of DSE for cultivating medicinal plants in saline soils.

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Regional variations and plant compartments shape the community structures of the endophytic microbiome and secondary metabolites of Astragalus mongholicus

Cited by 14 publications

References 92 publications

The seed microbiomes of staple food crops

The seed microbiomes of staple food crops

Integrated microbiome and metabolomics analysis reveal the relationship between plant-specialized metabolites and microbial community in Phellodendron amurense

Alleviation of Salt Stress and Changes in Glycyrrhizic Acid Accumulation by Dark Septate Endophytes in Glycyrrhiza glabra Grown under Salt Stress

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