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Arbuscular mycorrhizal fungi: potential biocontrol agents against the damaging root hemiparasite Pedicularis kansuensis?
Sui, Xiao-Lin1,2; Li, Ai-Rong1; Chen, Yan1,2; Guan, Kai-Yun1,3; Zhuo, Lu2,3; Liu, Yan-Yan2,3
2014-04-01
Source PublicationMYCORRHIZA
Volume24Issue:3Pages:187-195
AbstractSpatial expansion of root hemiparasitic Pedicularis kansuensis in Bayanbulak Grassland of Xinjiang Uygur Autonomous Region (China) has caused great loss of herbage yield and has threatened the local livestock industry. Current management practices using manual eradication and chemical control have been proved problematic. Arbuscular mycorrhizal (AM) fungi have been suggested to be potential biocontrol agents against a number of plant pests, but experimental evidence is lacking against weedy P. kansuensis. In this study, we tested the hypothesis that inoculation with AM fungi will cause growth depression in P. kansuensis and reduce its damage to host plants. Based on the confirmation of AM status and host community of the hemiparasite in the field, a pot cultivation experiment was conducted to test the influence of an AM fungus (Glomus mosseae) on growth of P. kansuensis and the parasitized host (Elymus nutans). AM colonization was observed in roots of P. kansuensis, but the levels were much lower than those of its adjacent host species. A negative correlation between AM levels and the numbers of haustoria was detected for the field samples of the hemiparasite. Strong suppression of haustorium formation, a significant reduction in plant dry weight (DW), as well as marked reduction in the survival rate of P. kansuensis after inoculation with AM fungi was observed. In contrast, inoculation with G. mosseae increased root DW and whole plant DW of parasitized host plants. Our findings demonstrated significantly repressive effects of AM fungi on growth performance of P. kansuensis with and without the presence of a host. The potential of AM fungi as biocontrol agents against the damaging hemiparasite was confirmed.
KeywordHemiparasitic Plant Pedicularis Kansuensis P. Verticillata Arbuscular Mycorrhizal Fungi Glomus Host-parasite Interaction
DOI10.1007/s00572-013-0528-5
Indexed BySCI
Language英语
WOS Research AreaMycology
WOS SubjectMycology
WOS IDWOS:000333124600004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/17637
Collection资源植物与生物技术所级重点实验室
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China
Recommended Citation
GB/T 7714
Sui, Xiao-Lin,Li, Ai-Rong,Chen, Yan,et al. Arbuscular mycorrhizal fungi: potential biocontrol agents against the damaging root hemiparasite Pedicularis kansuensis?[J]. MYCORRHIZA,2014,24(3):187-195.
APA Sui, Xiao-Lin,Li, Ai-Rong,Chen, Yan,Guan, Kai-Yun,Zhuo, Lu,&Liu, Yan-Yan.(2014).Arbuscular mycorrhizal fungi: potential biocontrol agents against the damaging root hemiparasite Pedicularis kansuensis?.MYCORRHIZA,24(3),187-195.
MLA Sui, Xiao-Lin,et al."Arbuscular mycorrhizal fungi: potential biocontrol agents against the damaging root hemiparasite Pedicularis kansuensis?".MYCORRHIZA 24.3(2014):187-195.
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