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.i.Utricularia./i. carnivory revisited: plants supply photosynthetic carbon to traps
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SYSNO ASEP 0329176 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Utricularia carnivory revisited: plants supply photosynthetic carbon to traps Author(s) Sirová, Dagmara (BC-A) RID, ORCID
Borovec, Jakub (BC-A) RID
Šantrůčková, H. (CZ)
Šantrůček, J. (CZ)
Vrba, Jaroslav (BC-A) RID, ORCID
Adamec, Lubomír (BU-J) RID, ORCIDSource Title Journal of Experimental Botany. - : Oxford University Press - ISSN 0022-0957
Roč. 61, č. 1 (2010), s. 99-103Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords aquatic carnivorous plants ; stable isotope labelling ; carbon exudation ; microbial community ; Utricularia australis ; Utricularia vulgaris Subject RIV EH - Ecology, Behaviour R&D Projects QH81012 GA MZe - Ministry of Agriculture (MZe) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) AV0Z60050516 - BU-J (2005-2011) UT WOS 000272686600011 DOI 10.1093/jxb/erp286 Annotation Carbon (C) allocation in rootless Utricularia has not been studied previously. There is uncertainty about the functional and ecological benefit of the trap-associated microbial community and the potential role played by C exudation in enhancing plant–microbe interactions. A 13C-labelling experiment was conducted to determine C allocation between plant tissues of increasing age and trap fluid in two Utricularia species. Both species allocated majority of newly fixed C into shoot apex (46.1 +- 8.6% in U. vulgaris and 56.1% in U. australis). Carbon allocation decreased rapidly with increasing age of the shoot. In the trap-bearing shoot segments, ratio of C exuded into trap fluid to that in plant tissues increased markedly with age—in oldest segments twice as much newly fixed C was allocated into the trap fluid than the plant tissue. Overall, a significant amount of the newly fixed C, approximately 25% in both species, was allocated to trap fluid. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2010
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