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Epichloë gansuensis Increases the Tolerance of Achnatherum inebrians to Low-P Stress by Modulating Amino Acids Metabolism and Phosphorus Utilization Efficiency
- Source :
- Journal of Fungi, Volume 7, Issue 5, Journal of Fungi, Vol 7, Iss 390, p 390 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI, 2021.
-
Abstract
- In the long-term evolutionary process, Achnatherum inebrians and seed-borne endophytic fungi, Epichloë gansuensis, formed a mutually beneficial symbiosis relationship, and Epichloë gansuensis has an important biological role in improving the tolerance of host grasses to abiotic stress. In this work, we first assessed the effects of Epichloë gansuensis on dry weight, the content of C, N, P and metal ions, and metabolic pathway of amino acids, and phosphorus utilization efficiency (PUE) of Achnatherum inebrians at low P stress. Our results showed that the dry weights, the content of alanine, arginine, aspartic acid, glycine, glutamine, glutamic acid, L-asparagine, lysine, phenylalanine, proline, serine, threonine, and tryptophan were higher in leaves of Epichloë gansuensis-infected (E+) Achnatherum inebrians than Epichloë gansuensis-uninfected (E−) Achnatherum inebrians at low P stress. Further, Epichloë gansuensis increased C content of roots compared to the root of E− plant at 0.01 mM P and 0.5 mM P<br />Epichloë gansuensis increased K content of leaves compared to the leaf of E− plant at 0.01 mM P and 0.5 mM P. Epichloë gansuensis reduced Ca content of roots compared to the root of E− plant at 0.01 mM P and 0.5 mM P<br />Epichloë gansuensis reduced the content of Mg and Fe in leaves compared to the leaf of E− plant at 0.01 mM P and 0.5 mM P. In addition, at low P stress, Epichloë gansuensis most probably influenced aspartate and glutamate metabolism<br />valine, leucine, and isoleucine biosynthesis in leaves<br />and arginine and proline metabolism<br />alanine, aspartate, and glutamate metabolism in roots. Epichloë gansuensis also affected the content of organic acid and stress-related metabolites at low P stress. In conclusion, Epichloë gansuensis improves Achnatherum inebrians growth at low P stress by regulating the metabolic pathway of amino acids, amino acids content, organic acid content, and increasing PUE.
- Subjects :
- 0106 biological sciences
Microbiology (medical)
Epichloë gansuensis
low P stress
grass
QH301-705.5
Plant Science
01 natural sciences
Article
03 medical and health sciences
Valine
Botany
Proline
Biology (General)
Ecology, Evolution, Behavior and Systematics
030304 developmental biology
chemistry.chemical_classification
0303 health sciences
Chemistry
Metabolism
metabolomics
Amino acid
Glycine
Leucine
Phosphorus utilization
010606 plant biology & botany
Organic acid
Subjects
Details
- Language :
- English
- ISSN :
- 2309608X
- Volume :
- 7
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Journal of Fungi
- Accession number :
- edsair.doi.dedup.....c3415fe976fd7624ce27d8741cc1ab52