Modification of Cuticular Wax Composition and Biosynthesis by Epichloë gansuensis in Achnatherum inebrians at Different Growing Periods

Zhao, Zhenrui; Tian, Mei; Zeng, Peng; Christensen, Michael J.; Kou, Mingzhu; Zhang, Nan; Zhang, Xingxu

doi:10.3390/agriculture12081154

Cited by 1 publication

(2 citation statements)

References 55 publications

(64 reference statements)

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“…The expression of genes related to MDA, CAT, and SOD pathways was not affected by the EI, 15%, 60%, EI & 15%, and EI & 60% effects (see Table S3 ); therefore, these genes were not included in further analyses. The RNA-seq data used in the present study were deposited in the Sequence Read Archive (SRA) of the NCBI database under accession number PRJNA748183 and previously used for other studies (i.e., [ 20 , 21 ]).…”

Section: Methodsmentioning

confidence: 99%

“…In drought situations, these endophytes increase the plant tolerance to the stress through promoting the host seed germination, biomass, nutrient acquisition, and photosynthetic rate [17][18][19]. Additionally, the E. gansuensis-mediated drought tolerance in A. inebrians plants is partially attributed to the endophyte's ability to regulate the expression of plant genes involved in the biosynthesis hormones and cuticular wax [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Endophytes Alleviate Drought-Derived Oxidative Damage in Achnatherum inebrians Plants Through Increasing Antioxidants and Regulating Host Stress Responses

Nie,

Zhao,

Zhang

et al. 2024

Microb Ecol

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Endophytes generally increase antioxidant contents of plants subjected to environmental stresses. However, the mechanisms by which endophytes alter the accumulation of antioxidants in plant tissues are not entirely clear. We hypothesized that, in stress situations, endophytes would simultaneously reduce oxidative damage and increase antioxidant contents of plants and that the accumulation of antioxidants would be a consequence of the endophyte ability to regulate the expression of plant antioxidant genes. We investigated the effects of the fungal endophyte Epichloë gansuensis (C.J. Li & Nan) on oxidative damage, antioxidant contents, and expression of representative genes associated with antioxidant pathways in Achnatherum inebrians (Hance) Keng plants subjected to low (15%) and high (60%) soil moisture conditions. Gene expression levels were measured using RNA-seq. As expected, the endophyte reduced the oxidative damage by 17.55% and increased the antioxidant contents by 53.14% (on average) in plants subjected to low soil moisture. In line with the accumulation of antioxidants in plant tissues, the endophyte increased the expression of most plant genes associated with the biosynthesis of antioxidants (e.g., MIOX, crtB, gpx) while it reduced the expression of plant genes related to the metabolization of antioxidants (e.g., GST, PRODH, ALDH). Our findings suggest that endophyte ability of increasing antioxidant contents in plants may reduce the oxidative damage caused by stresses and that the fungal regulation of plant antioxidants would partly explain the accumulation of these compounds in plant tissues.

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Section: Methodsmentioning

confidence: 99%