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Difference inStriga-susceptibility is reflected in strigolactone secretion profile, but not in compatibility and host preference in arbuscular mycorrhizal symbiosis in two maize cultivars
Title: | Difference inStriga-susceptibility is reflected in strigolactone secretion profile, but not in compatibility and host preference in arbuscular mycorrhizal symbiosis in two maize cultivars |
Authors: | Yoneyama, Kaori Browse this author | Arakawa, Ryota Browse this author | Ishimoto, Keiko Browse this author | Kim, Hyun Il Browse this author | Kisugi, Takaya Browse this author | Xie, Xiaonan Browse this author | Nomura, Takahito Browse this author | Kanampiu, Fred Browse this author | Yokota, Takao Browse this author | Ezawa, Tatsuhiro Browse this author →KAKEN DB | Yoneyama, Koichi Browse this author |
Keywords: | arbuscular mycorrhizal (AM) fungi | community composition | compatibility | Striga spp. | strigolactone | susceptibility | Zea mays (maize) |
Issue Date: | May-2015 |
Publisher: | Wiley-Blackwell |
Journal Title: | New Phytologist |
Volume: | 206 |
Issue: | 3 |
Start Page: | 983 |
End Page: | 989 |
Publisher DOI: | 10.1111/nph.13375 |
Abstract: | ・Strigolactones released from plant roots trigger both seed germination of parasitic weeds such as Striga spp. and hyphal branching of the symbionts arbuscular mycorrhizal (AM) fungi. Generally, strigolactone composition in exudates is quantitatively and qualitatively different among plants, which may be involved in susceptibility and host specificity in the parasite-plant interactions. We hypothesized that difference in strigolactone composition would have a significant impact on compatibility and host specificity/preference in AM symbiosis. ・Strigolactones in root exudates of Striga-susceptible (Pioneer 3253) and -resistant (KST 94) maize (Zea mays) cultivars were characterized by LC–MS/MS combined with germination assay using Striga hermonthica seeds. Levels of colonization and community compositions of AM fungi in the two cultivars were investigated in field and glasshouse experiments. ・5-Deoxystrigol was exuded exclusively by the susceptible cultivar, while the resistant cultivar mainly exuded sorgomol. Despite the distinctive difference in strigolactone composition, the levels of AM colonization and the community compositions were not different between the cultivars. ・The present study demonstrated that the difference in strigolactone composition has no appreciable impact on AM symbiosis, at least in the two maize cultivars, and further suggests that the traits involved in Striga-resistance are not necessarily accompanied by reduction in compatibility to AM fungi. |
Rights: | The definitive version is available at www.blackwellsynergy.com |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/58488 |
Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 江澤 辰広
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