Effects of the endophyte Epichloe festucae var. lolii of perennial ryegrass (Lolium perenne) on indicators of oxidative stress from pathogenic fungi during seed germination and seedling growth

doi:10.1007/s10658-014-0563-x

	Effects of the endophyte Epichloe festucae var. lolii of perennial ryegrass (Lolium perenne) on indicators of oxidative stress from pathogenic fungi during seed germination and seedling growth
	Ma, MZ; Christensen, MJ; Nan, ZB(南志标); Nan, ZB (reprint author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, POB 61, Lanzhou 730020, Gansu, Peoples R China.
	2015-03
Source Publication	European Journal of Plant Pathology
ISSN	0929-1873
Volume	141 Issue:3 Pages:571-583
Abstract	To determine whether infection by a fungal endophyte of the genus EpichloA << has a modifying influence on pathogenic fungal stress, endophyte-infected (E+) and endophyte-free (E-) seeds of perennial ryegrass (Lolium perenne), inoculated with the ryegrass pathogens Alternaria alternata, Ascochyta leptospora, Bipolaris sorokiniana, Curvularia lunata and Fusarium avenaceum were used for germination experiments and quantification of oxidative stress. Four measures of oxidative stress were used: malonaldehyde (MDA) content, peroxidases (POD) and superoxide dismutase (SOD) activity, and proline content. MDA content, an indicator of membrane lipid peroxidation damage, was significantly lower in E+ seedlings than in E- seedlings under stress from the test fungi. POD activity of E+ seedlings exposed to A. alternata, B. sorokiniana and C. lunata was significantly higher than similarly challenged E- seedlings. SOD activity of E+ seedlings was significantly higher than E- seedlings after exposure to A. alternata, B. sorokiniana, C. lunata and As. leptospora. Proline content of E+ seedlings exposed to the five pathogens was significantly higher than E- seedlings. Interestingly, these effects were present in the absence of disease symptoms apart from some root browning of E+ and E- seedlings exposed to B. sorokiniana. The results of this study showed that the seed-borne endophyte E. festucae var. lolii has potential to enhance establishment of perennial ryegrass by providing protection against pathogenic fungi during the critical early stages of seed germination and subsequent growth.
Keyword	Lolium perenne Epichloe Neotyphodium endophytes Pathogenic fungi Seed germination Seedling growth Antioxidative enzymes
Subject Area	Agriculture ; Plant Sciences
Publisher	SPRINGER
DOI	10.1007/s10658-014-0563-x
Publication Place	DORDRECHT
Indexed By	SCIE ; BIOSIS
Language	英语
First Inst	是
Funding Project	国家重点基础研究发展计划以及国家重大科学研究计划（973计划）
Project Number	National Basic Research Program (973) of China [2014CB 138702]
WOS ID	WOS:000349436600010
Funding Organization	MOST
Subtype	Article
BIOSIS ID	BCI:BCI201500245620
IRID	BCI:BCI201500245620
Department	[Ma, Minzhi; Nan, Zhibiao] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Gansu, Peoples R China; [Christensen, Michael J.] AgRes Grasslands, Forage Improvement, Palmerston North, New Zealand
Citation statistics	Cited Times:39[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	https://ir.lzu.edu.cn/handle/262010/113827
Collection	草地农业科技学院
Corresponding Author	Nan, ZB (reprint author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, POB 61, Lanzhou 730020, Gansu, Peoples R China.
Recommended Citation GB/T 7714	Ma, MZ,Christensen, MJ,Nan, ZB,et al. Effects of the endophyte Epichloe festucae var. lolii of perennial ryegrass (Lolium perenne) on indicators of oxidative stress from pathogenic fungi during seed germination and seedling growth[J]. European Journal of Plant Pathology,2015,141(3):571-583.
APA	Ma, MZ,Christensen, MJ,Nan, ZB,&Nan, ZB .(2015).Effects of the endophyte Epichloe festucae var. lolii of perennial ryegrass (Lolium perenne) on indicators of oxidative stress from pathogenic fungi during seed germination and seedling growth.European Journal of Plant Pathology,141(3),571-583.
MLA	Ma, MZ,et al."Effects of the endophyte Epichloe festucae var. lolii of perennial ryegrass (Lolium perenne) on indicators of oxidative stress from pathogenic fungi during seed germination and seedling growth".European Journal of Plant Pathology 141.3(2015):571-583.

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