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兰州大学机构库  > 草地农业科技学院  > 期刊论文
题名: 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
作者: Ma, MZ; Christensen, MJ; Nan, ZB(南志标)
收录类别: SCIE ; BIOSIS
出版日期: 2015-03
刊名: European Journal of Plant Pathology
卷号: 141, 期号:3, 页码:571-583
出版者: SPRINGER
出版地: DORDRECHT
英文摘要: 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.
关键词: Lolium perenne ; Epichloe Neotyphodium endophytes ; Pathogenic fungi ; Seed germination ; Seedling growth ; Antioxidative enzymes
作者部门: [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
通讯作者: Nan, ZB (reprint author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, POB 61, Lanzhou 730020, Gansu, Peoples R China.
学科分类: Agriculture; Plant Sciences
文章类型: Article
所属项目编号: National Basic Research Program (973) of China [2014CB 138702]
所属项目名称: 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)
项目资助者: MOST
语种: 英语
DOI: 10.1007/s10658-014-0563-x
ISSN号: 0929-1873
WOS记录号: WOS:000349436600010
BIOSIS记录号: BCI:BCI201500245620
IR记录号: BCI:BCI201500245620
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/113827
Appears in Collections:草地农业科技学院_期刊论文

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Recommended Citation:
Ma, MZ,Christensen, MJ,Nan, ZB. 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.
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