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001-es BibID:	BIBFORM109570
035-os BibID:	(cikkazonosító)586 (Scopus)85151426418 (WoS)000956870300001
Első szerző:	Juhász Gabriella Petra (biologia tanár)
Cím:	Microcystin-LR, a Cyanobacterial Toxin, Induces Changes in the Organization of Membrane Compartments in Arabidopsis / Gabriella Petra Juhász, Sándor Kéki, Anita Dékány-Adamoczky, Csongor Freytag, Gábor Vasas, Csaba Máthé, Tamás Garda
Dátum:	2023
ISSN:	2076-2607
Megjegyzések:	To evaluate the effects of the cyanobacterial toxin microcystin-LR (MCY-LR, a protein phosphatase inhibitor) and diquat (DQ, an oxidative stress inducer) on the organization of tonoplast, the effect of MCY-LR on plastid stromule formation and on mitochondria was investigated in wildtype Arabidopsis. Tonoplast was also studied in PP2A catalytic (c3c4) and regulatory subunit mutants (fass-5 and fass-15). These novel studies were performed by CLSM microscopy. MCY-LR is produced during cyanobacterial blooms. The organization of tonoplast of PP2A mutants of Arabidopsis is much more sensitive to MCY-LR and DQ treatments than that of wild type. In c3c4, fass-5 and fass-15, control and treated plants showed increased vacuole fragmentation that was the strongest when the fass-5 mutant was treated with MCY-LR. It is assumed that both PP2A/C and B" subunits play an important role in normal formation and function of the tonoplast. In wild-type plants, MCY-LR affects mitochondria. Under the influence of MCY-LR, small, round-shaped mitochondria appeared, while long/fused mitochondria were typical in control plants. Presumably, MCY-LR either inhibits the fusion of mitochondria or induces fission. Consequently, PP2A also plays an important role in the fusion of mitochondria. MCY-LR also increased the frequency of stromules appearing on chloroplasts after 1 h treatments. Along the stromules, signals can be transported between plastids and endoplasmic reticulum. It is probable that they promote a faster response to stress.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Microorganisms. - 11 : 3 (2023), p. 1-13. -
További szerzők:	Kéki Sándor (1964-) (polimer kémikus) Dékány-Adamoczky Anita (1985-) (anyagmérnök) Freytag Csongor (1993-) (biológus) Vasas Gábor (1975-) (biológus-vegyész) Máthé Csaba (1966-) (biológus) Garda Tamás (1990-) (biológus)
Pályázati támogatás:	OTKA-120638 OTKA OTKA-132685 OTKA TKP2021-EGA-20 Egyéb ÚNKP-22-4-I-DE-11 Egyéb
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