Effect of
 Epichloë gansuensis
 Endophyte on Seed-Borne Microbes and Seed Metabolites in
 Achnatherum inebrians

Liang, Jinjin; Gao, Guoyu; Zhong, Rui; Liu, Bowen; Christensen, Michael J.; Ju, Yawen; Zhang, Wu; Li, Yanzhong; Li, Chunjie; Zhang, Xingxu; Zhang, Nan

doi:10.1128/spectrum.01350-22

Cited by 6 publications

(4 citation statements)

References 76 publications

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“…However, no results demonstrate the direct role of alkaloid on seed biology so far. Epichloë infection also triggers important modifications of the seed metabolome ( Zhang et al, 2019 ; Liang et al, 2023 ). Beside the accumulation of alkaloids, changes in the contents of purine and amino acid derivatives, lipids and sugars have been reported ( Zhang et al., 2019 ; Chen et al., 2021 ; Liang et al., 2023 ).…”

Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

“…Epichloë infection also triggers important modifications of the seed metabolome ( Zhang et al, 2019 ; Liang et al, 2023 ). Beside the accumulation of alkaloids, changes in the contents of purine and amino acid derivatives, lipids and sugars have been reported ( Zhang et al., 2019 ; Chen et al., 2021 ; Liang et al., 2023 ). The comparison of metabolomic and transcriptomic data suggest that Epichloë infection affects seed metabolism at least partly through transcriptional regulation ( Chen et al., 2016 ; Rahnama et al., 2023 ).…”

Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

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Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Rétif,

Kunz,

Calabro

et al. 2023

Front. Plant Sci.

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Seed germination is a major determinant of plant development and final yield establishment but strongly reliant on the plant’s abiotic and biotic environment. In the context of global climate change, classical approaches to improve seed germination under challenging environments through selection and use of synthetic pesticides reached their limits. A currently underexplored way is to exploit the beneficial impact of the microorganisms associated with plants. Among plant microbiota, endophytes, which are micro-organisms living inside host plant tissues without causing any visible symptoms, are promising candidates for improving plant fitness. They possibly establish a mutualistic relationship with their host, leading to enhanced plant yield and improved tolerance to abiotic threats and pathogen attacks. The current view is that such beneficial association relies on chemical mediations using the large variety of molecules produced by endophytes. In contrast to leaf and root endophytes, seed-borne fungal endophytes have been poorly studied although they constitute the early-life plant microbiota. Moreover, seed-borne fungal microbiota and its metabolites appear as a pertinent lever for seed quality improvement. This review summarizes the recent advances in the identification of seed fungal endophytes and metabolites and their benefits for seed biology, especially under stress. It also addresses the mechanisms underlying fungal effects on seed physiology and their potential use to improve crop seed performance.’

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Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

Section: Seed-borne Endophytic Fungi: a High Potential To Improve See...mentioning

confidence: 99%

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Rétif,

Kunz,

Calabro

et al. 2023

Front. Plant Sci.

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“…Drunken horse grass (Achnatherum inebrians) is a common poisonous grass in the Poaceae, and it is widely distributed in the natural grasslands of Northern China [4][5][6]. Studies have shown that this species has invaded more than 85% of the land in some severely degraded areas [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Combination of Achnatherum inebrians Extracts and Soil Microorganisms Inhibited Seed Germination and Seedling Growth in Elymus nutans

Zhang,

Chen,

Chen

et al. 2024

Phyton

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In a greenhouse experiment, the effects of soil microorganisms and extracts of Achnatherum inebrians on the seed germination and seedling growth of Elymus nutans were studied. The results showed that both the extracts from aboveground and belowground parts of A. inebrians significantly inhibited the germination rate, germination potential, germination index, vigor index, seedling height, root length, and fresh weight of E. nutans, but increased malondialdehyde content, catalase, peroxidase and superoxide dismutase activity of E. nutans seedlings (p < 0.05). The allelopathy of aqueous extracts of the aboveground parts of A. inebrians was stronger than that of the precipitates. Aqueous extracts of the aboveground parts of A. inebrians decreased seed germination rate, germination potential, germination index, vigor index, seedling length, root length, and seedling fresh weight by 10.

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“…Achnatherum inebrians (Hance) Keng ex Tzvele is a perennial grass in the family Gramineae that is becoming increasingly widespread in northwest China, including in Gansu, Xinjiang, Qinghai, Tibet and Inner Mongolia (Liu et al, 2021;Liang et al, 2023). Relevant studies showed that the harmful area was 3 × 10 5 hm 2 in Gansu, accounting for 17.08% of the poisonous weed degraded area in the province (Guo et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Responses of community traits and soil characteristics of Achnatherum inebrians-type degraded grassland to grazing systems in alpine meadows on the Qinghai-Tibet Plateau

Chen,

Xu,

et al. 2023

Front. Plant Sci.

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IntroductionScientific grazing management is of great significance for the ecological health and sustainable use of alpine meadows.MethodsTo explore appropriate management methods of alpine grasslands of the Qinghai-Tibet Plateau degraded by Achnatherum inebrians (Hance) Keng ex Tzvele presence, we studied the effects of different grazing systems on the A. inebrians population, grassland vegetation community traits, soil characteristics and soil microbial community structure for cold- season grazing plus supplementary feeding pasture (CSF) and four-season open public pasture (FOP) in Tianzhu County, Gansu Province.ResultsCompared with FOP, the CSF site showed significantly inhibited reproduction of A. inebrians, especially the crown width, seed yield and number of reproductive branches per plant were as high as 50%, significantly increased the aboveground biomass of edible forage and soil water content by 57% and 43–55%, better soil nutrients, and significantly reduced soil bulk density by 10– 29%. Different grazing systems affected the composition and diversity of soil microbial communities, with a greater effect on fungi than on bacterial flora. The most abundant phyla of bacteria and fungi were Proteobacteria and Ascomycota for CSF (by 30–38% and 24–28%) and for FOP (by 67–70% and 68–73%), and the relative abundance and species of bacterial and fungal genera were greater for CSF than FOP. The α-diversity indexes of fungi were improved, and the β-diversity of fungi was significant difference between CSF and FOP. However, the grazing utilization time was prolonged in FOP, which reduced the diversity and abundance of soil bacteria and increased soil spatial heterogeneity. The use of A. inebrians-type degraded grassland in the cold season, and as a winter supplementary feeding and resting ground, could effectively inhibit expansion of A. inebrians, promote edible forage growth, enhance grassland productivity and community stability, and improve soil structure. DiscussionThe results guide healthy and sustainable utilization of A. inebrians-type degraded grassland in the Qinghai-Tibet Plateau.

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Effect of Epichloë gansuensis Endophyte on Seed-Borne Microbes and Seed Metabolites in Achnatherum inebrians

Cited by 6 publications

References 76 publications

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

Seed fungal endophytes as biostimulants and biocontrol agents to improve seed performance

The Combination of <i>Achnatherum inebrians</i> Extracts and Soil Microorganisms Inhibited Seed Germination and Seedling Growth in <i>Elymus nutans</i>

Responses of community traits and soil characteristics of Achnatherum inebrians-type degraded grassland to grazing systems in alpine meadows on the Qinghai-Tibet Plateau

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