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1518. Experimental syntax and Slavic languagesArthur Stepanov, 2021, samostojni znanstveni sestavek ali poglavje v monografski publikaciji Opis: The chapter reviews a number of empirical domains that recently came into the focus of research in Slavic experimental syntax, including island phenomena, syntactic Superiority effects, various types of agreement, word order, and scope interaction, among others. This research mostly relies on sentence acceptability experiments applied across larger pools of participants, but the chapter also reviews selected studies using related experimental methods (e.g. elicited production and sentence–picture verification). The chapter concludes by identifying a number of conceptual issues in syntactic theory, for which we believe Slavic experimental syntax has a potential to make a particularly strong contribution.
Ključne besede: experimental syntax, Slavic language, syntactic island, unaccusativity, information structure, superiority effect, case matching, agreement, numeral phrase
Objavljeno v RUNG: 20.12.2021; Ogledov: 2002; Prenosov: 15
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1519. Real-time monitoring of Arundo donax response to saline stress through the application of in vivo sensing technologyJanni Michela, Claudia Cocozza, Federico Brilli, Sara Pignattelli, Filippo Vurro, Nicola Coppede, Manuele Bettelli, Davide Calestani, Francesco Loreto, Andrea Zappettini, 2021, izvirni znanstveni članek Opis: One of the main impacts of climate change on agriculture production is the dramatic increase of saline (Na+) content in substrate, that will impair crop performance and productivity. Here we demonstrate how the application of smart technologies such as an in vivo sensor, termed bioristor, allows to continuously monitor in real-time the dynamic changes of ion concentration in the sap of Arundo donax L. (common name giant reed or giant cane), when exposed to a progressive salinity stress. Data collected in vivo by bioristor sensors inserted at two different heights into A. donax stems enabled us to detect the early phases of stress response upon increasing salinity. Indeed, the continuous time-series of data recorded by the bioristor returned a specific signal which correlated with Na+ content in leaves of Na-stressed plants, opening a new perspective for its application as a tool for in vivo plant phenotyping and selection of genotypes more suitable for the exploitation of saline soils.
Ključne besede: Arundo donax, saline stress, vivo sensing technology
Objavljeno v RUNG: 17.12.2021; Ogledov: 1721; Prenosov: 18
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1520. Impact of microplastics on growth, photosynthesis and essential elements in Cucurbita pepo L.Ilaria Colzi, Luciana Renna, Elisabetta Bianchi, Maria Beatrice Castellani, Andrea Coppi, Sara Pignattelli, Stefano Loppi, Cristina Gonnelli, 2022, izvirni znanstveni članek Opis: In this study, Cucurbita pepo L., one of the most cultivated, consumed and economically important crop worldwide, was used as model plant to test the toxic effects of the four most abundant microplastics identified in contaminated soils, i.e. polypropylene (PP), polyethylene (PE), polyvinylchloride (PVC), and polyethyleneterephthalate (PET). Cucurbita plants were grown in pots with increasing concentrations of the microplastics, then plant biometry, photosynthetic parameters and ionome of treated vs. untreated samples were compared to evaluate the toxicity of each plastic. All the pollutants impaired root and, especially, shoot growth. Specific and concentration-dependant effects of the different microplastics were found, including reduction in leaf size, chlorophyll content and photosynthetic efficiency, as well as changes in the micro- and macro-elemental profile. Among all the microplastics, PVC was identified as the most toxic and PE as the less toxic material. PVC decreased the dimensions of the leaf lamina, the values of the photosynthetic performance index and the plant iron concentration to a higher extent in respect to the other treatments. Microplastic toxicity exerted on the growth of C. pepo raises concerns about possible yield and economic loss, as well as for risks of a possible transfer into the food chain.
Ključne besede: microplastic toxicity, leaf traits, chlorophyll fluorescence, ionome, zucchini
Objavljeno v RUNG: 17.12.2021; Ogledov: 1823; Prenosov: 7
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