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001-es BibID:	BIBFORM082711
035-os BibID:	(cikkazonosító)e0226551 (WOS)000534249400045 (Scopus)85077021542
Első szerző:	Costea, Mihai
Cím:	The effect of gut passage by waterbirds on the seed coat and pericarp of diaspores lacking "external flesh" : evidence for widespread adaptation to endozoochory in angiosperms / Mihai Costea, Hiba El Miari, Levente Laczkó, Réka Fekete, Attila V. Molnár, Ádám Lovas-Kiss, Andy J. Green
Dátum:	2019
ISSN:	1932-6203
Megjegyzések:	The widely accepted "endozoochory syndrome" is assigned to angiosperm diaspores with a fleshy, attractive tissue and implies the existence of adaptations for protection against digestion during gut passage. This syndrome has led diaspore fleshiness to be emphasized as the exclusive indicator of endozoochory in much of the ecology and biogeography research. Crucially, however, endozoochory in nature is not limited to frugivory, and diaspores without "external flesh" are commonly dispersed, often over long distances, via birds and mammals by granivory. A key question is: are such diaspores somehow less prepared from an architectural point of view to survive gut passage than fleshy diaspores? To answer this question, we selected 11 European angiosperm taxa that fall outside the classical endozoochory syndrome yet are known to be dispersed via endozoochory. We studied their seed coat/pericarp morphology and anatomy both before and after gut passage through granivorous waterfowl, and determined their seed survival and germinability. We found no fundamental differences in the mechanical architecture of the seed coat and pericarp between these plants dispersed by granivory and others dispersed by frugivory. Neither diaspore traits per se, nor dormancy type, were strong predictors of diaspore survival or degree of damage during gut passage through granivores, or of the influence of gut passage on germinability. Among our 11 taxa, survival of gut passage is enabled by the thick cuticle of the exotesta or epicarp; one or several lignified cell layers; and diverse combinations of other architectural elements. These protection structures are ubiquitous in angiosperms, and likely to have evolved in gymnosperms. Hence, many angiosperm diaspores, dry or fleshy, may be pre-adapted to endozoochory, but with differing degrees of specialization and adaptation to dispersal mechanisms such as frugivory and granivory. Our findings underline the broad ecological importance of "non-classical endozoochory" of diaspores that lack "external flesh".
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk endozoochory
Megjelenés:	Plos One. - 14 : 12 (2019), p. 1-22. -
További szerzők:	El Miari, Hiba Laczkó Levente (1992-) (biológus) Fekete Réka (1993-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Lovas-Kiss Ádám (1991-) (biológus, botanikus) Green, Andy J.
Pályázati támogatás:	OTKA K108992 OTKA ÚNKP-19-4-DE-172 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM089598
035-os BibID:	(WOS)000507139300001 (Scopus)85077993919
Első szerző:	Lovas-Kiss Ádám (biológus, botanikus)
Cím:	Seed mass, hardness, and phylogeny explain the potential for endozoochory by granivorous waterbirds / Lovas-Kiss Ádám, Vincze Orsolya, Kleyheeg Erik, Sramkó Gábor, Laczkó Levente, Fekete Réka, Molnár V. Attila, Green J. Andy
Dátum:	2020
ISSN:	2045-7758
Megjegyzések:	Field studies have shown that waterbirds, especially members of the Anatidae family, are major vectors of dispersal by endozoochory for a broad range of plants lacking a fleshy fruit, yet whose propagules can survive gut passage. Widely adopted dispersal syndromes ignore this dispersal mechanism, and we currently have little understanding of what traits determine the potential of angiosperms for endozoochory by waterbirds. Results from previous experimental studies have been inconsistent as to how seed traits affect seed survival and retention time in the gut and have failed to control for the influence of plant phylogeny. Using 13 angiosperm species from aquatic and terrestrial habitats representing nine families, we examined the effects of seed size, shape, and hardness on the proportion of seeds surviving gut passage through mallards (Anas platyrhynchos) and their retention time within the gut. We compiled a molecular phylogeny for these species and controlled for the nonindependence of taxa due to common descent in our analyses. Intact seeds from all 13 species were egested, but seed survival was strongly determined by phylogeny and by partial effects of seed mass and hardness (wet load): species with seeds harder than expected from their size, and smaller than expected from their loading, had greater survival. Once phylogeny was controlled for, a positive partial effect of seed roundness on seed survival was also revealed. Species with seeds harder than expected from their size had a longer mean retention time, a result retained after controlling for phylogeny. Our study is the first to demonstrate that seed shape and phylogeny are important predictors of seed survival in the avian gut. Our results demonstrate that the importance of controlling simultaneously for multiple traits and relating single traits (e.g., seed size) alone to seed survival or retention time is not a reliable way to detect important patterns, especially when phylogenetic effects are ignored.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Anas platyrhynchos endozoochory phylogeny retention time seed dispersal seed traits
Megjelenés:	Ecology and Evolution. - 10 : 3 (2020), p. 1413-1424. -
További szerzők:	Vincze Orsolya (1988-) (biológus) Kleyheeg Erik Sramkó Gábor (1981-) (biológus) Laczkó Levente (1992-) (biológus) Fekete Réka (1993-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Green, Andy J.
Pályázati támogatás:	OTKA-108992 OTKA ÚNKP-19-4-DE-172 Egyéb ÚNKP-19-4-DE-538 Egyéb ÚNKP-18-3-I-DE-355 Egyéb NKFIH-FK-127939 Egyéb NKFIH-KH-129520 Egyéb
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM116026
035-os BibID:	(Scopus)85175859931
Első szerző:	Nagy József Bálint (molekuláris biológus)
Cím:	Carbapenem-resistant Escherichia coli in Black-headed gulls, the Danube, and human clinical samples : a One Health comparison of contemporary isolates / József Bálint Nagy, Balázs Koleszár, Bernadett Khayer, Eszter Róka, Levente Laczkó, Erika Ungvári, Eszter Kaszab, Krisztina Bali, Krisztián Bányai, Márta Vargha, Ádám Lovas-Kiss, Ákos Tóth, Gábor Kardos
Dátum:	2023
ISSN:	2213-7165
Megjegyzések:	Objectives: Our aim was to characterize and compare contemporary carbapenem-resistant Enterobacterales (CRE) isolates from gulls, the River Danube, and humans in Hungary, Budapest. Methods: Multiresistant Enterobacterales were sought for in 227 gull faecal and 24 Danube water samples from 2019 to 2020. Eosin-methylene blue agar containing 2 mg/L cefotaxime and Colilert-test containing 10 mg/L cefotaxime were used for gull and water samples, respectively. Isolates were characterized by polymerase chain reactions (PCRs); acquired carbapenemase producers were further analysed by whole-genome sequencing, together with 21 Hungarian human CR Escherichia coli (CREc) isolates. Results: Gull and water samples exhibited a CRE prevalence of 7.4% (9/122) and 6.7% (7/105), none and 5/12 water samples yielded CRE from 2019 and 2020, respectively; CRE were found only in samples taken downstream of Budapest. The dominant species was Escherichia coli and the most prevalent carbapenemase was blaNDM-1. High-risk CREc clones were found both in gulls (ST224, ST372, ST744) and the Danube (ST10, ST354, ST410); the closest associations were between ST410 from humans and the Danube, among ST1437 among gulls, and between ST1437 in gulls and the Danube (46, 0, and 22?24 allelic distances, respectively). Direct links between human and gull isolates were not demonstrated. Conclusion: The study demonstrates potential epidemiological links among humans, a river crossing a city, and urbanised birds, suggesting a local transmission network. Water bodies receiving influent wastewater, together with animals using such habitats, may serve as a local reservoir system for CRE, highlighting the importance of One Health in CRE transmission, even in a country with a low CRE prevalence in humans.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Antibiotic resistance blaNDM-1 carbapenemase Human-animal interaction ST410 Urbanised birds
Megjelenés:	Journal of Global Antimicrobial Resistance. - 35 (2023), p. 257-261. -
További szerzők:	Koleszár Balázs Khayer Bernadett Róka Eszter (1989-) (gyógyszerész, gyógyszertechnológus) Laczkó Levente (1992-) (biológus) Ungvári Erika Kaszab Eszter (1989-) (biológus) Bali Krisztina Bányai Krisztián Vargha Márta Lovas-Kiss Ádám (1991-) (biológus, botanikus) Tóth Ákos Kardos Gábor (1974-) (szakorvos, klinikai mikrobiológus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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