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Hormonomic changes driving the negative impact of broomrape on plant host interactions with arbuscular mycorrhizal fungi
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SYSNO ASEP 0553398 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Hormonomic changes driving the negative impact of broomrape on plant host interactions with arbuscular mycorrhizal fungi Author(s) Mishev, K. (BG)
Dobrev, Petre (UEB-Q) RID, ORCID
Lacek, Jozef (UEB-Q) ORCID
Filepová, Roberta (UEB-Q) SAI
Yuperlieva-Mateeva, B. (BG)
Kostadinova, A. (BG)
Hristeva, T. (BG)Number of authors 7 Article number 13677 Source Title International Journal of Molecular Sciences. - : MDPI
Roč. 22, č. 24 (2021)Number of pages 18 s. Language eng - English Country CH - Switzerland Keywords Mycorrhizal fungi ; Parasitic plants ; Plant hormones ; Rhizosphere ; Root exudates ; Small-molecule communication ; Strigolactones OECD category Plant sciences, botany R&D Projects EF16_019/0000738 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 000777821400001 EID SCOPUS 85121347494 DOI 10.3390/ijms222413677 Annotation Belowground interactions of plants with other organisms in the rhizosphere rely on extensive small-molecule communication. Chemical signals released from host plant roots ensure the development of beneficial arbuscular mycorrhizal (AM) fungi which in turn modulate host plant growth and stress tolerance. However, parasitic plants have adopted the capacity to sense the same signaling molecules and to trigger their own seed germination in the immediate vicinity of host roots. The contribution of AM fungi and parasitic plants to the regulation of phytohormone levels in host plant roots and root exudates remains largely obscure. Here, we studied the hormonome in the model system comprising tobacco as a host plant, Phelipanche spp. as a holoparasitic plant, and the AM fungus Rhizophagus irregularis. Co-cultivation of tobacco with broomrape and AM fungi alone or in combination led to characteristic changes in the levels of endogenous and exuded abscisic acid, indole-3-acetic acid, cytokinins, salicylic acid, and orobanchol-type strigolactones. The hormonal content in exudates of broomrape-infested mycorrhizal roots resembled that in exudates of infested non-mycorrhizal roots and differed from that observed in exudates of non-infested mycorrhizal roots. Moreover, we observed a significant reduction in AM colonization of infested tobacco plants, pointing to a dominant role of the holoparasite within the tripartite system. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2022 Electronic address http://doi.org/10.3390/ijms222413677
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