Application of radiotracers in an exotic field of botany: How to feed carnivorous plants

Steinhäuser, Georg; Adlassnig, Wolfram; Peroutka, Marianne; Musilek, Andreas; Sterba, Johannes H.; Bichler, Max; Lichtscheidl, Irene

doi:10.1007/s10967-007-1129-6

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…In addition to the trapping of animals, carnivorous plants, by definition, digest and utilise their prey [1,20]. The absorption of small molecules into the epidermis by means of methylene blue staining was confirmed for all investigated species, as was to be expected from earlier results [12,21,22]. Protease production and digestion within 48 h after stimulation seems to be present in the majority of Sarraceniaceae, including Darlingtonia and Heliamphora [23], but lacking in the closely related [24] species S. rosea and S. purpurea .…”

Section: Discussionsupporting

confidence: 70%

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

Koller-Peroutka

Krammer

Pavlik

et al. 2019

Plants

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Highly evolved carnivorous plants secrete digestive enzymes for degradation of trapped animals and absorb whole macromolecules from their prey by means of endocytosis. (1) Background: In the pitcher-plant family Sarraceniaceae, the production of enzymes is dubious and no evidence for endocytosis is known so far. (2) Methods: Heliamphora nutans, Darlingtonia californica, and nine taxa of Sarracenia are tested for cuticular pores, and for protease and endocytosis of the fluorescent protein analogue FITC-BSA, after 10–48 h of stimulation. (3) Results: Cuticular pores as a prerequisite for enzyme secretion and nutrient uptake are present in all tested species. Permeable cells form clusters in the inner epidermis of the pitchers, but are only little differentiated from impermeable epidermis cells. Proteases are found in S. psittacina, S. leucophylla, S. minor, S. oreophila, S. alabamensis, H. nutans, D. californica lacking only in S. flava and in S. purpurea ssp. purpurea, S. purpurea ssp. venosa, S. rosea, where enzyme production is possibly replaced by degradation via the extraordinary diverse inquiline fauna. S. leucophylla, S. minor, S. oreophila exhibit both protease production and endocytosis; S. psittacina, S. alabamensis, H. nutans, D. californica produce proteases only; no single species shows endocytosis without protease production. (4) Conclusions: Protease secretion seems to be a prerequisite for endocytotic nutrient uptake. Transport of FITC-BSA absorbed by endocytosis towards the vascular tissue of the trap leaves suggests that endocytosis of nutrients is more than a side effect of enzyme secretion.

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Section: Discussionsupporting

confidence: 70%

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

Koller-Peroutka

Krammer

Pavlik

et al. 2019

Plants

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“…Some nutrients from this solution are readily taken up by the cells lining the pitcher . Experiments utilizing radiotracers added to the pitcher fluid have shown that Mn 2+ is among the nutrients taken up from this fluid, but Fe 2+ and Zn 2+ are not , . Consequently, not all divalent trace metals present in the prey will be assimilated by the plant.…”

Section: Introductionmentioning

confidence: 99%

Assimilation of Cd and Cu by the Carnivorous PlantSarracenia leucophyllaRaf. fed Contaminated Prey

Moody

Green

2010

Environ. Sci. Technol.

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Many species of carnivorous plants have become endangered through exposure to multiple risks such as habitat loss, illegal poaching, and pollution. A potential threat to these plants posed by pollution stems from the contamination of their invertebrate prey with trace metals. This study examined the potential for prey to act as sources of the trace metals Cd and Cu for the pitcher plant Sarracenia leucophylla. Cd- and Cu-contaminated Diptera larvae were fed to S. leucophylla plants in separate experiments. The results demonstrated that Cd and Cu were readily transferred to the shoots of S. leucophylla in a dose-dependent manner. While the assimilation of Cu decreased with treatment level, the assimilation of Cd did not. Some assimilated Cu appeared to be translocated to the roots, but Cd was strongly retained in the shoots, where it was related to a reduction in shoot biomass. This suggested that on exposure to Cd-contaminated prey, the plants either experienced phytotoxicity or there was disruption of nutrient acquisition from the prey. Accumulation of Cu was not related to any sign of phytotoxicity.

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Expanding the menu for carnivorous plants: Uptake of potassium, iron and manganese by carnivorous pitcher plants

Adlassnig

Steinhäuser

Peroutka

et al. 2009

Applied Radiation and Isotopes

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Application of radiotracers in an exotic field of botany: How to feed carnivorous plants

Cited by 4 publications

References 26 publications

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

Endocytosis and Digestion in Carnivorous Pitcher Plants of the Family Sarraceniaceae

Assimilation of Cd and Cu by the Carnivorous PlantSarracenia leucophyllaRaf. fed Contaminated Prey

Expanding the menu for carnivorous plants: Uptake of potassium, iron and manganese by carnivorous pitcher plants

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