Sara Pignattelli (Avtor), Andrea Broccoli (Avtor), Manuela Piccardo (Avtor), Antonio Terlizzi (Avtor), Monia Renzi (Avtor)

Povzetek

This study evaluated the chronic toxicity (30 days) of different sizes of polyethylene terephthalate (PET) microplastics (60e3000 mm) provided alone or in combination with acid rain, on garden cress (Lepidium sativum). Both biometrical and physiological traits have been evaluated: i) percentage inhibition of seed germination, plant height, leaf number and fresh biomass production; ii) oxidative stress responses (hydrogen peroxide; ascorbic acid and glutathione production); iii) impairment in photosynthetic machinery in term of pigments production; iv) aminolevulinic acid and proline production. Results highlighted that different sizes of PET, alone or in combination with acid rain, are able to negatively affect both biometrical and physiological plant traits. In particular, the lower size of microplastics is able to negatively affect growth and development, as well as to trigger the oxidative burst. Regarding the pigments production, PET coupled with acid rain, induced a higher production of Chl-b, and an inhibition of aminolevulinic acid.

Ključne besede

polyethylene terephthalate;acid rain;lepidium sativum;oxidative burst;germinability;chlorophylls;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 504
COBISS: 58234371 Povezava se bo odprla v novem oknu
ISSN: 0269-7491
Št. ogledov: 1313
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Strani: str. 1-9
Zvezek: ǂVol. ǂ282
Čas izdaje: 2021
DOI: 10.1016/j.envpol.2021.116997
ID: 12721862