Two sympatric root hemiparasitic Pedicularis species differ in host dependency and selectivity under phosphorus limitation
Li, Ai-Rong1,2; Smith, F. Andrew2; Smith, Sally E.2; Guan, Kai-Yun1
2012
发表期刊FUNCTIONAL PLANT BIOLOGY
卷号39期号:9页码:784-794
摘要Parasitic biology of Pedicularis L. (Orobanchaceae) has been underinvestigated despite its wide distribution and potential ecological significance. To better understand the parasitic aspects of the root hemiparasites, host-parasite interactions were investigated with two sympatric Pedicularis species, Pedicularis rex C. B. Clarke and Pedicularis tricolor Hand.-Mazz., at two developmental stages. Plant DW, shoot phosphorus (P) content, root : shoot ratio and number of haustoria were measured in Pedicularis grown with either a host plant or a plant of its own species in pot experiments. In addition, effects of parasitism and intraspecific competition on growth and biomass allocation in four host species belonging to three major functional groups (grasses, legumes and forbs) were investigated. The two Pedicularis species showed obvious host preference, but preferred different host species. Interactions between Pedicularis and their hosts depended on both species identity and developmental stages of the partners. Overall, P. rex showed much weaker host dependency and less damage to hosts than P. tricolor. Interspecific variations were observed among different host species in their responses to intraspecific competition and parasitism. We concluded that different Pedicularis-host pairs showed different interaction patterns. Sympatric Pedicularis may have differential influence on plant community structure and productivity.
关键词Host-parasite Association Lousewort Plant Parasitism
DOI10.1071/FP12159
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000308331300007
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/20428
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Peoples R China
2.Univ Adelaide, Soils Grp, Sch Agr Food & Wine, Adelaide, SA 5005, Australia
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Li, Ai-Rong,Smith, F. Andrew,Smith, Sally E.,et al. Two sympatric root hemiparasitic Pedicularis species differ in host dependency and selectivity under phosphorus limitation[J]. FUNCTIONAL PLANT BIOLOGY,2012,39(9):784-794.
APA Li, Ai-Rong,Smith, F. Andrew,Smith, Sally E.,&Guan, Kai-Yun.(2012).Two sympatric root hemiparasitic Pedicularis species differ in host dependency and selectivity under phosphorus limitation.FUNCTIONAL PLANT BIOLOGY,39(9),784-794.
MLA Li, Ai-Rong,et al."Two sympatric root hemiparasitic Pedicularis species differ in host dependency and selectivity under phosphorus limitation".FUNCTIONAL PLANT BIOLOGY 39.9(2012):784-794.
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