中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
In vitro study of the growth, development and pathogenicity responses of fusarium oxysporum to phthalic acid, an autotoxin from lanzhou lily

文献类型:期刊论文

作者Wu, Zhijiang1,2; Yang, Liu1,2; Wang, Ruoyu1; Zhang, Yubao1; Shang, Qianhan1,2; Wang, Le1,2; Ren, Qin1,2; Xie, Zhongkui1
刊名World journal of microbiology & biotechnology
出版日期2015-08-01
卷号31期号:8页码:1227-1234
关键词Phthalic acid (pa) Fusarium oxysporum Fusaric acid Hydrolytic enzymes
ISSN号0959-3993
DOI10.1007/s11274-015-1872-8
通讯作者Xie, zhongkui(wxhcas@lzb.ac.cn)
英文摘要Continuous monoculture of lanzhou lily (lilium davidii var. unicolor cotton) results in frequent incidence of fusarium wilt caused by fusarium oxysporum. phthalic acid (pa), a principal autotoxin from root exudates of lanzhou lily, is involved in soil sickness by inducing autotoxicity. the aim of this study was to evaluate the direct allelopathic effects of pa on the growth, development and pathogenicity of f. oxysporum in vitro based on an ecologically relevant soil concentration. the results showed that pa slightly but not significantly inhibited the colony growth (mycelial growth) and fungal biomass of f. oxysporum at low concentrations ranging from 0.05 to 0.5 mm, and significantly inhibited the colony growth at the highest concentration (1 mm). none of the pa concentrations tested significantly inhibited the conidial germination and sporulation of f. oxysporum in liquid medium. however, mycotoxin (fusaric acid) yield and pathogenesis-related hydrolytic enzyme (protease, pectinase, cellulase, and amylase) activities were significantly stimulated in liquid cultures of f. oxysporum containing pa at a parts per thousand yen0.25 mm. we conclude that pa at a soil level (i.e. 0.25 mm) is involved in plant-pathogen allelopathy as a stimulator of mycotoxin production and hydrolytic enzyme activities in f. oxysporum, which is possibly one of the mechanisms responsible for promoting the wilt disease of lily.
WOS关键词WALL-DEGRADING ENZYMES ; VIRULENCE GENE-EXPRESSION ; DAVIDII VAR. UNICOLOR ; F-SP NIVEUM ; GLOBAL REGULATOR ; STAPHYLOCOCCUS-AUREUS ; MYCOTOXIN PRODUCTION ; SALICYLIC-ACID ; CINNAMIC ACID ; F.SP NIVEUM
WOS研究方向Biotechnology & Applied Microbiology
WOS类目Biotechnology & Applied Microbiology
语种英语
WOS记录号WOS:000357056900006
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2376404
专题中国科学院大学
通讯作者Xie, Zhongkui
作者单位1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Gaolan Stn Agr & Ecol Expt, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wu, Zhijiang,Yang, Liu,Wang, Ruoyu,et al. In vitro study of the growth, development and pathogenicity responses of fusarium oxysporum to phthalic acid, an autotoxin from lanzhou lily[J]. World journal of microbiology & biotechnology,2015,31(8):1227-1234.
APA Wu, Zhijiang.,Yang, Liu.,Wang, Ruoyu.,Zhang, Yubao.,Shang, Qianhan.,...&Xie, Zhongkui.(2015).In vitro study of the growth, development and pathogenicity responses of fusarium oxysporum to phthalic acid, an autotoxin from lanzhou lily.World journal of microbiology & biotechnology,31(8),1227-1234.
MLA Wu, Zhijiang,et al."In vitro study of the growth, development and pathogenicity responses of fusarium oxysporum to phthalic acid, an autotoxin from lanzhou lily".World journal of microbiology & biotechnology 31.8(2015):1227-1234.

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