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Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё bromicola on Growth of Wild Barley (Hordeum brevisubulatum)
Epichloë endophytes are biotrophic fungi that establish mutualistic symbiotic relationship with grasses and affect performance of the host under different environments. Wild barley (Hordeum brevisubulatum) is an important forage grass and often infected by Epichloë bromicola, thus showing tolerances...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8397062/ https://www.ncbi.nlm.nih.gov/pubmed/34436154 http://dx.doi.org/10.3390/jof7080615 |
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author | Lang, Mingxiao Zhou, Jingle Chen, Taixiang Chen, Zhenjiang Malik, Kamran Li, Chunjie |
author_facet | Lang, Mingxiao Zhou, Jingle Chen, Taixiang Chen, Zhenjiang Malik, Kamran Li, Chunjie |
author_sort | Lang, Mingxiao |
collection | PubMed |
description | Epichloë endophytes are biotrophic fungi that establish mutualistic symbiotic relationship with grasses and affect performance of the host under different environments. Wild barley (Hordeum brevisubulatum) is an important forage grass and often infected by Epichloë bromicola, thus showing tolerances to stresses. Since the plant growth correlates with both microbial infection and nutrient stoichiometry, this study was performed to investigate whether the function of Epichloë bromicola endophyte to improve host growth depend upon the nitrogen (N), phosphorus (P) fertilization. Epichloë-infected (E+) and Epichloë-free (E−) wild barley plants were subjected to nine types of mixed N (0.2 mM, 3 mM, 15 mM) and P (0.01 mM, 0.1 mM, 1.5 mM) levels treatments for 90 d to collect plant samples and determine multiple related indexes. We found that E. bromicola and N, P additions positively affected seed germination. Further, E. bromicola significantly enhanced chlorophyll content and root metabolic activity under N-deficiency, and meanwhile, might alter allocation of photosynthate under different conditions. The contents of N, P and stoichiometry of C:N:P of E+ plants were significantly higher than that of E− under nutrient deficiency, but contrary results were observed under adequate nutrients. Therefore, we propose that the growth-promoting ability of E. bromicola is closely correlated with N and P additional levels. Under low N, P additions, positive roles of endophyte are significant as opposed to negative roles under high N, P additions. |
format | Online Article Text |
id | pubmed-8397062 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83970622021-08-28 Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё bromicola on Growth of Wild Barley (Hordeum brevisubulatum) Lang, Mingxiao Zhou, Jingle Chen, Taixiang Chen, Zhenjiang Malik, Kamran Li, Chunjie J Fungi (Basel) Article Epichloë endophytes are biotrophic fungi that establish mutualistic symbiotic relationship with grasses and affect performance of the host under different environments. Wild barley (Hordeum brevisubulatum) is an important forage grass and often infected by Epichloë bromicola, thus showing tolerances to stresses. Since the plant growth correlates with both microbial infection and nutrient stoichiometry, this study was performed to investigate whether the function of Epichloë bromicola endophyte to improve host growth depend upon the nitrogen (N), phosphorus (P) fertilization. Epichloë-infected (E+) and Epichloë-free (E−) wild barley plants were subjected to nine types of mixed N (0.2 mM, 3 mM, 15 mM) and P (0.01 mM, 0.1 mM, 1.5 mM) levels treatments for 90 d to collect plant samples and determine multiple related indexes. We found that E. bromicola and N, P additions positively affected seed germination. Further, E. bromicola significantly enhanced chlorophyll content and root metabolic activity under N-deficiency, and meanwhile, might alter allocation of photosynthate under different conditions. The contents of N, P and stoichiometry of C:N:P of E+ plants were significantly higher than that of E− under nutrient deficiency, but contrary results were observed under adequate nutrients. Therefore, we propose that the growth-promoting ability of E. bromicola is closely correlated with N and P additional levels. Under low N, P additions, positive roles of endophyte are significant as opposed to negative roles under high N, P additions. MDPI 2021-07-29 /pmc/articles/PMC8397062/ /pubmed/34436154 http://dx.doi.org/10.3390/jof7080615 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lang, Mingxiao Zhou, Jingle Chen, Taixiang Chen, Zhenjiang Malik, Kamran Li, Chunjie Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title | Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё
bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title_full | Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё
bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title_fullStr | Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё
bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title_full_unstemmed | Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё
bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title_short | Influence of Interactions between Nitrogen, Phosphorus Supply and Epichloё
bromicola on Growth of Wild Barley (Hordeum brevisubulatum) |
title_sort | influence of interactions between nitrogen, phosphorus supply and epichloё
bromicola on growth of wild barley (hordeum brevisubulatum) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8397062/ https://www.ncbi.nlm.nih.gov/pubmed/34436154 http://dx.doi.org/10.3390/jof7080615 |
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