Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor
The extensive production and use of plastics have led to widespread pollution of the environment. As a result, biodegradable polymers (BDPs) are receiving a great deal of attention because they are expected to degrade entirely in the environment. Therefore, in this work, we tested the effect of two...
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Elsevier
2023-12-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023103367 |
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| author | Petra Procházková Sabina Mácová Seçil Aydın Helena Zlámalová Gargošová Gabriela Kalčíková Jiří Kučerík |
| author_facet | Petra Procházková Sabina Mácová Seçil Aydın Helena Zlámalová Gargošová Gabriela Kalčíková Jiří Kučerík |
| author_sort | Petra Procházková |
| collection | DOAJ |
| description | The extensive production and use of plastics have led to widespread pollution of the environment. As a result, biodegradable polymers (BDPs) are receiving a great deal of attention because they are expected to degrade entirely in the environment. Therefore, in this work, we tested the effect of two fractions (particles <63 μm and particles from 63 to 125 μm) of biodegradable poly-3-hydroxybutyrate (P3HB) at different concentrations on the specific growth rate, root length, and photosynthetic pigment content of the freshwater plant Lemna minor. Microparticles with similar properties made of polyethylene terephthalate (PET) were also tested for comparison. No adverse effects on the studied parameters were observed for either size fraction; the only effect was the root elongation with increasing P3HB concentration. PET caused statistically significant root elongation only in the highest concentration, but the effect was not as extensive as for P3HB. The development of a biofilm on P3HB particles was observed during the experiment, and the nutrient sorption experiment showed that the sorption capacity of P3HB was greater than PET's. Therefore, depleting the nutrients from the solution could force the plant to increase the root surface area by their elongation. The results suggest that biodegradable microplastics may cause secondary nutrient problems in the aquatic environment due to their biodegradability. |
| first_indexed | 2024-03-08T21:27:46Z |
| format | Article |
| id | doaj.art-ff3bb9dbcc7e41f5a1b7788347c45c40 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-08T21:27:46Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-ff3bb9dbcc7e41f5a1b7788347c45c402023-12-21T07:35:48ZengElsevierHeliyon2405-84402023-12-01912e23128Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minorPetra Procházková0Sabina Mácová1Seçil Aydın2Helena Zlámalová Gargošová3Gabriela Kalčíková4Jiří Kučerík5Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech Republic; Corresponding author.Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech RepublicDepartment of Chemical Engineering, Faculty of Chemistry-Metallurgical, Yıldız Technical University, 34210, Davutpasa Esenler, Istanbul, TurkiyeInstitute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech RepublicFaculty of Chemistry and Chemical Technology, University of Ljubljana, 113 Večna pot, SI-1000, Ljubljana, SloveniaInstitute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 612 00 Brno, Czech RepublicThe extensive production and use of plastics have led to widespread pollution of the environment. As a result, biodegradable polymers (BDPs) are receiving a great deal of attention because they are expected to degrade entirely in the environment. Therefore, in this work, we tested the effect of two fractions (particles <63 μm and particles from 63 to 125 μm) of biodegradable poly-3-hydroxybutyrate (P3HB) at different concentrations on the specific growth rate, root length, and photosynthetic pigment content of the freshwater plant Lemna minor. Microparticles with similar properties made of polyethylene terephthalate (PET) were also tested for comparison. No adverse effects on the studied parameters were observed for either size fraction; the only effect was the root elongation with increasing P3HB concentration. PET caused statistically significant root elongation only in the highest concentration, but the effect was not as extensive as for P3HB. The development of a biofilm on P3HB particles was observed during the experiment, and the nutrient sorption experiment showed that the sorption capacity of P3HB was greater than PET's. Therefore, depleting the nutrients from the solution could force the plant to increase the root surface area by their elongation. The results suggest that biodegradable microplastics may cause secondary nutrient problems in the aquatic environment due to their biodegradability.http://www.sciencedirect.com/science/article/pii/S2405844023103367Biodegradable plasticsDuckweedEcotoxicityMicrobeadsMicro-bioplasticsP3HB |
| spellingShingle | Petra Procházková Sabina Mácová Seçil Aydın Helena Zlámalová Gargošová Gabriela Kalčíková Jiří Kučerík Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor Heliyon Biodegradable plastics Duckweed Ecotoxicity Microbeads Micro-bioplastics P3HB |
| title | Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor |
| title_full | Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor |
| title_fullStr | Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor |
| title_full_unstemmed | Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor |
| title_short | Effects of biodegradable P3HB on the specific growth rate, root length and chlorophyll content of duckweed, Lemna minor |
| title_sort | effects of biodegradable p3hb on the specific growth rate root length and chlorophyll content of duckweed lemna minor |
| topic | Biodegradable plastics Duckweed Ecotoxicity Microbeads Micro-bioplastics P3HB |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023103367 |
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