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8. Namaquania BOROVEC & MEREGALLI 2021, GEN. NOV

Author

Meregalli, Massimo, Borovec, Roman, Cervella, Piero, Santovito, Alfredo, Toševski, Ivo, Ottati, Sara, and Nakládal, Oto

Subjects
Coleoptera, Curculionidae, Namaquania, Insecta, Arthropoda, Animalia, Biodiversity, Taxonomy
Abstract

NAMAQUANIA BOROVEC & MEREGALLI, GEN. NOV. Zoobank registration: urn:lsid:zoobank.org:act: FBD76D02-3A0B-4BD0-BF03-35A0E599D73F Type species: Namaquania andreai Borovec & Meregalli, here designated. Diagnostic description: Middle-sized Namaini 2.4–4.1 mm long; rostrum continuous with head, with U-shaped stria on epifrons; ventral border of rostrum in profile short, conspicuously shorter than rostral thickness; frons densely squamose; gena and subgena densely squamose; antennal sockets in dorsal view narrowly reniform, in profile not reaching eyes, enlarged posteriad, directed towards eyes; antennal scapes slender, at apex as wide as clubs; metaventral process 1.5 × wider than transverse diameter of metacoxa; tibiae long and slender; tarsi long and slender, onychium distinctly longer than segment 3; ventrites squamose; suture between ventrite 1 and 2 slightly sinuose; tegmen with weakly sclerotized short parameres; female sternite VIII with long and slender apodeme terminating at base of plate and forming short basal margins, its plate small, rhombus-shaped to oval. Etymology:The genus name refers to the Namaqualand, an arid region of South Africa (Northern Cape Province) and southern Namibia, originally inhabited by Nama and Khoisan tribes, from where the majority of the species were collected. The gender is feminine. Included taxa and distribution: In addition to the type species, seven additional taxa are included in Namaquania, based on the mt-Cox1 analysis and/or their morphology. They are distributed in South Africa: Northern Cape, northern part of Southern Cape and in southern Namibia (Fig. 13). NAMAQUANIA ANDREAI BOROVEC & MEREGALLI, SP.

Published
2021
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16. Morphology of planktonic zoeal stages of Palicus caronii (Decapoda, Brachyura), identified by DNA barcoding, provides novelties to Palicoidea larval systematics

Author

Ministerio de Ciencia e Innovación (España), Ministerio de Economía y Competitividad (España), European Commission, Ministero della Salute, Muzio, Giorgia di, Mussat Sartor, Rocco, Nurra, Nicola, Battuello, Marco, Pessani, Daniela, Cervella, Piero, Cuesta, José A., Ministerio de Ciencia e Innovación (España), Ministerio de Economía y Competitividad (España), European Commission, Ministero della Salute, Muzio, Giorgia di, Mussat Sartor, Rocco, Nurra, Nicola, Battuello, Marco, Pessani, Daniela, Cervella, Piero, and Cuesta, José A.

Abstract

The zoeal development of the brachyuran crab, Palicus caronii, comprises two zoeal stages and the morphology is described and illustrated in detail. The zoeae were collected in plankton samples from the Southern Ligurian Sea (Western Mediterranean). Although the morphology of the larval stages of this species was unknown, a combination of characters allowed the zoeae to initially be assigned to the Palicidae, based on the previous unique known first zoeal description of one species of this family. Later, the identification of the larvae as Palicus caronii was confirmed through molecular analysis. The morphological features of the zoeae that characterize the Palicidae and separate them from the Crossotonotidae are confirmed. Also, the larval development comprising only two zoeal stages observed in Palicus caronii, the peculiar and uncommon carapace surface setation, and the presence of anterodorsal and posterodorsal sensory dorsal organs suggest that these characters could be common to the Palicoidea.

Published
2019

25. Induction of chromosomal aberrations and micronuclei by 2-hydroxy-4-methoxybenzophenone (oxybenzone) in human lymphocytes.

Author

Santovito, Alfredo, Ruberto, Stefano, Galli, Gabriella, Menghi, Costanza, Girotti, Marilena, and Cervella, Piero

Subjects
CHROMOSOME abnormalities, NUCLEOLUS, LYMPHOCYTES, HYGIENE products, ENDOCRINE system
Abstract

Oxybenzone or benzophenone-3 (2-hydroxy-4-methoxybenzophenone; BP-3) is a filter used in a variety of personal care products for protection of human skin and hair from damage by ultraviolet radiation. BP-3 is suspected to exhibit endocrine disruptive properties. Indeed, it was found to be able to interact with the endocrine system causing alteration of its homeostasis, with consequent adverse health effects. Moreover, it is ubiquitously present in the environment, mostly in aquatic ecosystems, with consequent risks to the health of aquatic organisms and humans. In the present study, we analyzed the cytogenetic effects of BP-3 on human lymphocytes using in vitro chromosomal aberrations and micronuclei assays. Blood samples were obtained from five healthy Italian subjects. Lymphocyte cultures were exposed to five concentrations of BP-3 (0.20, 0.10, 0.05, 0.025, and 0.0125 μg/mL) for 24 and 48 h (for chromosomal aberrations and micronuclei tests, respectively). The concentration of 0.10 µg/mL represents the acceptable/tolerable daily intake reference dose established by European Union, whereas 0.20, 0.05, 0.025, and 0.0125 µg/mL represent multiple and sub-multiple of this concentration value. Our results reported cytogenetic effects of BP-3 on cultured human lymphocytes in terms of increased micronuclei and chromosomal aberrations' frequencies at all tested concentrations, including concentrations lower than those established by European Union. Vice versa, after 48-h exposure, a significant reduction of the cytokinesis-block proliferation index value in cultures treated with BP-3 was not observed, indicating that BP-3 does not seem to produce effects on the proliferation/mitotic index when its concentration is equal to or less than 0.20 μg/mL. [ABSTRACT FROM AUTHOR]

Published
2019
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