干旱区生态环境知识资源中心(Arid): Interactive effects of Epichloe fungal and host origins on the seed germination of Achnatherum inebrians

Arid

DOI	10.1007/s13199-019-00636-0
	Interactive effects of Epichloe fungal and host origins on the seed germination of Achnatherum inebrians
	Bao, Gensheng 1,2; Song, Meiling 1,2; Wang, Yuqin 1,2; Saikkonen, Kari 3; Wang, Hongsheng 1,2
通讯作者	Bao, Gensheng
来源期刊	SYMBIOSIS
ISSN	0334-5114
EISSN	1878-7665
出版年	2019
卷号	79 期号:1 页码:49-58
英文摘要	Cool-season grasses have developed a symbiotic relationship with Epichloe endophytes. In many environments, Epichloe endophytes have been shown to be mutualistic symbionts of plants by increasing the fitness of their host against abiotic or biotic stresses. The effects of Epichloe endophytes on other fitness-correlated plant characteristics are less intensively studied, and the results are usually variable and contradictory. In this study, we evaluated the effects of endophyte infection on seed germination in Achnatherum inebrians from four origins. Our results indicate that the germination rate of the seeds collected from alpine regions was higher at low temperatures than that of seeds with desert and arid grassland origins. By contrast, a higher germination percentage was detected in seeds with desert and arid grassland origins than in those with alpine origins in higher temperatures. Epichloe endophyte infection affects the cardinal temperatures of seeds from different origins. Endophyte-infected seeds have a lower base temperature and a higher ceiling temperature than their endophyte-free counterparts. The value of the base temperature was higher in seeds with alpine grassland origins than in those with desert and arid grassland origins. However, the ceiling temperature was higher in seeds with desert and arid grassland origins than in those with alpine grassland origins. Consequently, future experiments should consider the effects of endophytes on seed germination and seedling recruitment in suboptimal climatic conditions.
英文关键词	Endophyte Achnatherum inebrians Seed germination Habitat Temperature Thermal time model
类型	Article
语种	英语
国家	Peoples R China ; Finland
收录类别	SCI-E
WOS记录号	WOS:000484921300004
WOS关键词	QINGHAI-TIBET PLATEAU ; LOLIUM-PERENNE ; NEOTYPHODIUM ENDOPHYTES ; HYDROTHERMAL TIME ; GRAIN LEGUMES ; TALL FESCUE ; GRASS ; TEMPERATURE ; PLANT ; INFECTION
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219039
作者单位	1.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810003, Qinghai, Peoples R China; 2.Qinghai Univ, Acad Anim & Vet Med, Key Lab Qinghai Tibet Plateau Forage Gerplasm Res, Xining 810016, Qinghai, Peoples R China; 3.Univ Turku, Biodivers Unit, Turku 20014, Finland
推荐引用方式 GB/T 7714	Bao, Gensheng,Song, Meiling,Wang, Yuqin,et al. Interactive effects of Epichloe fungal and host origins on the seed germination of Achnatherum inebrians[J],2019,79(1):49-58.
APA	Bao, Gensheng,Song, Meiling,Wang, Yuqin,Saikkonen, Kari,&Wang, Hongsheng.(2019).Interactive effects of Epichloe fungal and host origins on the seed germination of Achnatherum inebrians.SYMBIOSIS,79(1),49-58.
MLA	Bao, Gensheng,et al."Interactive effects of Epichloe fungal and host origins on the seed germination of Achnatherum inebrians".SYMBIOSIS 79.1(2019):49-58.