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Arabidopsis Responds to Alternaria alternata Volatiles by Triggering Plastid Phosphoglucose Isomerase-Independent Mechanisms
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SYSNO ASEP 0471225 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Arabidopsis Responds to Alternaria alternata Volatiles by Triggering Plastid Phosphoglucose Isomerase-Independent Mechanisms Author(s) Sanchez-Lopez, A.M. (ES)
Bahaji, A. (ES)
De Diego, N. (CZ)
Baslam, M. (ES)
Li, J. (US)
Munoz, F.J. (ES)
Almagro, G. (ES)
Garcia-Gomez, P. (ES)
Ameztoy, K. (ES)
Ricarte-Bermejo, A. (ES)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Humplík, J.F. (CZ)
Spíchal, L. (CZ)
Doležal, Karel (UEB-Q) RID, ORCID
Ciordia, S. (ES)
Mena, M. C. (ES)
Navajas, R. (ES)
Baroja-Fernandez, E. (ES)
Pozueta-Romero, J. (ES)Number of authors 19 Source Title Plant Physiology. - : Oxford University Press - ISSN 0032-0889
Roč. 172, č. 3 (2016), s. 1989-2001Number of pages 13 s. Language eng - English Country US - United States Keywords tandem mass-spectrometry ; exceptionally high-levels ; starch biosynthesis ; functional-characterization ; glucose translocator ; thaliana ; mutants ; cytokinin ; tissues ; leaves Subject RIV EB - Genetics ; Molecular Biology R&D Projects LO1204 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UEB-Q - RVO:61389030 UT WOS 000391172300046 DOI 10.1104/pp.16.00945 Annotation Volatile compounds (VCs) emitted by phylogenetically diverse microorganisms (including plant pathogens and microbes that do not normally interact mutualistically with plants) promote photosynthesis, growth, and the accumulation of high levels of starch in leaves through cytokinin (CK)-regulated processes. In Arabidopsis (Arabidopsis thaliana) plants not exposed to VCs, plastidic phosphoglucose isomerase (pPGI) acts as an important determinant of photosynthesis and growth, likely as a consequence of its involvement in the synthesis of plastidic CKs in roots. Moreover, this enzyme plays an important role in connecting the Calvin-Benson cycle with the starch biosynthetic pathway in leaves. To elucidate the mechanisms involved in the responses of plants to microbial VCs and to investigate the extent of pPGI involvement, we characterized pPGI-null pgi1-2 Arabidopsis plants cultured in the presence or absence of VCs emitted by Alternaria alternata. We found that volatile emissions from this fungal phytopathogen promote growth, photosynthesis, and the accumulation of plastidic CKs in pgi1-2 leaves. Notably, the mesophyll cells of pgi1-2 leaves accumulated exceptionally high levels of starch following VC exposure. Proteomic analyses revealed that VCs promote global changes in the expression of proteins involved in photosynthesis, starch metabolism, and growth that can account for the observed responses in pgi1-2 plants. The overall data show that Arabidopsis plants can respond to VCs emitted by phytopathogenic microorganisms by triggering pPGI-independent mechanisms. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2017
Number of the records: 1