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The influence of prey capture on photosynthetic rate in two aquatic carnivorous plant species
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SYSNO ASEP 0308094 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název The influence of prey capture on photosynthetic rate in two aquatic carnivorous plant species Překlad názvu Vliv chytání kořisti na fotosyntetickou rychlost u dvou druhů vodních masožravých rostlin Tvůrce(i) Adamec, Lubomír (BU-J) RID, ORCID Zdroj.dok. Aquatic Botany. - : Elsevier - ISSN 0304-3770
Roč. 89, č. 1 (2008), s. 66-70Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Aldrovanda vesiculosa ; Utricularia australis ; tissue nutrient content Vědní obor RIV EF - Botanika CEZ AV0Z60050516 - BU-J (2005-2011) DOI https://doi.org/10.1016/j.aquabot.2008.01.008 Anotace Photosynthetic (PN) and dark respiration rate (RD) were measured in two species of aquatic carnivorous plants, Aldrovanda vesiculosa and Utricularia australis, growing with or without prey in an outdoor growth experiment. After 7-14 days, the positive growth effect of feeding on prey (apical growth rate, plant size, branching) was evident in both species. Tissue N content in young leaf whorls of both species fed on prey was significantly lower (by 54% in Aldrovanda, by 86% in Utricularia) than that in unfed variants, while tissue P content was about the same. In both species, chlorophyll a content was consistent with tissue N content and RD in fed and unfed variants was very similar. However, PN was significantly greater in fed plants of Aldrovanda, while lower in Utricularia. It is possible to conclude that feeding on prey in aquatic carnivorous plants leads to neither an increase of shoot tissue N content nor PN per unit biomass. Thus, the main physiological effect of catching prey is not enhancement of PN, but to provide N and P for essential growth processes in juvenile tissues Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2008
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