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61.
A complex picture of associations between two host mussels and symbiotic bacteria in the Northeast Atlantic 总被引:1,自引:0,他引:1
Clara F. Rodrigues Marina R. Cunha Luciana Génio Sébastien Duperron 《Die Naturwissenschaften》2013,100(1):21-31
Among chemosymbiotic metazoans found at deep-sea hydrothermal vents, cold seeps and organic falls, members of the mussel clade Bathymodiolinae (Bivalvia: Mytilidae) have evolved interactions with a higher diversity of bacterial lineages than other bivalve groups. Here, we characterized the bacteria associated with “Bathymodiolus” mauritanicus and Idas-like specimens from three sites in the Northeast Atlantic (two mud volcanoes in the Gulf of Cadiz and one seamount of the Gorringe Bank). Phylogenetic analysis of bacterial 16S rRNA-encoding gene sequences demonstrated that “B”. mauritanicus has a dual symbiosis dominated by two phylotypes of methane-oxidising bacteria and a less abundant phylotype of a sulphur-oxidising bacterium. The latter was the dominant phylotype in a sympatric population of Idas-like mussels at the Darwin mud volcano. These results are the first report of a bacterial phylotype shared between two deep-sea mussels from divergent clades. This sulphur-oxidising bacterium was absent from Idas-like specimens from the other two sites (Gorringe Bank and Meknès mud volcano), in which bacterial clone libraries were dominated by other Gammaproteobacteria related to symbionts previously identified in Idas modiolaeformis from the Eastern Mediterranean. All Idas-like specimens studied herein are closely related and also related to I. modiolaeformis. However, they probably display different associations with bacteria, with the possible absence of both methane- and sulphur-oxidising symbionts at the Gorringe Bank. These results draw a very complex picture of associations between mussels and bacteria in the Northeast Atlantic, which could be highly variable depending on locale characteristics of the habitats. 相似文献
62.
Pisetta Ane-Mery Roveri Vinicius Guimarães Luciana Lopes de Oliveira Therezinha Maria Novais Correia Alberto Teodorico 《Environmental science and pollution research international》2022,29(42):63099-63111
Environmental Science and Pollution Research - The worldwide occurrence of pharmaceuticals and personal care products (PPCPs) in aquatic ecosystems is reason for public concern. These emerging... 相似文献
63.
Walter Leal Filho Ulisses Azeiteiro Fátima Alves Paul Pace Mark Mifsud Luciana Brandli 《国际发展与全球生态学杂志》2018,25(2):131-142
The United Nations Sustainable Development Goals (UN SDGs) contain a set of 17 measures to foster sustainable development across many areas. It offers a good opportunity to reinvigorate sustainable development research for two main reasons. First, it comprises many areas of SD research, which have become mainstream thanks to the UN SDGs. Second, the fact that the UN and its member countries have committed to attaining SDGs by 2030 has added a sense of urgency to the need to perform quality research on SD on the one hand, and reiterates the need to use the results of this research on the other. Even though the basic concept of sustainability goes back many centuries, it has only recently appeared on the international political agenda. This is partly due to an awakening of the fact that the human ecological pressure on the planet is still much larger than what nature can renew or compensate for. Based on this state of affairs, this paper presents an outline of the process leading to the agreement on the UN SDGs, and looks at some of the ecological aspects as a result of continued pressure of human activities on natural resources. Furthermore, a set of research needs is proposed – also based holistically on updated research trends – discussing the degree of urgency of some measures and explaining why the UN SDGs need to be accorded greater priority in international sustainable development research efforts. 相似文献
64.
Sadok Khouadja Elisabetta Suffredini Besma Baccouche Luciana Croci Amina Bakhrouf 《Environmental monitoring and assessment》2014,186(10):6935-6945
Pathogenic Vibrio species are an important cause of foodborne illnesses. The aim of this study was to describe the occurrence of potentially pathogenic Vibrio species in the final effluents of a wastewater treatment plant and the risk that they may pose to public health. During the 1-year monitoring, a total of 43 Vibrio strains were isolated: 23 Vibrio alginolyticus, 1 Vibrio cholerae, 4 Vibrio vulnificus, and 15 Vibrio parahaemolyticus. The PCR investigation of V. parahaemolyticus and V. cholerae virulence genes (tlh, trh, tdh, toxR, toxS, toxRS, toxT, zot, ctxAB, tcp, ace, vpi, nanH) revealed the presence of some of these genes in a significant number of strains. Intraspecies variability and genetic relationships among the environmental isolates were analyzed by random amplified polymorphic DNA-PCR (RAPD-PCR). We report the results of the first isolation and characterization of an environmental V. cholerae non-O1 non-O139 and of a toxigenic V. parahaemolyticus strain in Tunisia. We suggest that non-pathogenic Vibrio might represent a marine reservoir of virulence genes that can be transmitted between strains by horizontal transfer. 相似文献
65.
Abamectin is used as an acaricide and insecticide for fruits, vegetables and ornamental plants, as well as a parasiticide for animals. One of the major problems of applying pesticides to crops is the likelihood of contaminating aquatic ecosystems by drift or runoff. Therefore, toxicity tests in the laboratory are important tools to predict the effects of chemical substances in aquatic ecosystems. The aim of this study was to assess the potential hazards of abamectin to the freshwater biota and consequently the possible losses of ecological services in contaminated water bodies. For this purpose, we identified the toxicity of abamectin on daphnids, insects and fish. Abamectin was highly toxic, with an EC50 48 h for Daphnia similis of 5.1 ng L−1, LC50 96 h for Chironomus xanthus of 2.67 μg L−1 and LC50 48 h for Danio rerio of 33 μg L−1. 相似文献
66.
D’Amico Sebastiano Comite Valeria Paladini Giuseppe Ricca Michela Colica Emanuele Galone Luciano Guido Sante Mantella Giuseppe Crupi Vincenza Majolino Domenico Fermo Paola La Russa Mauro Francesco Randazzo Luciana Venuti Valentina 《Environmental science and pollution research international》2022,29(20):29478-29497
Environmental Science and Pollution Research - In this study, a multimethodological analysis involving optical and physical/chemical diagnostic techniques and 3D photogrammetric survey was... 相似文献
67.
Ascoli-Morrete Thaís Bandeira Nelson M. G. Signor Elias Gazola Humberto A. Homrich Isis S. Biondo Rhaíssa Rossato-Grando Luciana G. Zanella Noeli 《Environmental science and pollution research international》2022,29(30):45549-45559
Environmental Science and Pollution Research - The expansion of agricultural activities causes habitat loss and fragmentation and the pollution of natural ecosystems through the intense use of... 相似文献
68.
Mali Matilda Di Leo Antonella Giandomenico Santina Spada Lucia Cardellicchio Nicola Calò Maria Fedele Alessandra Ferraro Luciana Milia Alfonsa Renzi Monia Massara Francesca Granata Tommaso Moruzzi Letizia Buonocunto Francesco Paolo 《Environmental science and pollution research international》2022,29(41):62281-62298
Environmental Science and Pollution Research - The Gulf of Naples located in a high anthropized coastal area is subjected to an infrastructural intervention for the installation of a submarine... 相似文献
69.
Corrêa Furtini Ana Carolina Silva Brito Flávia Maria Guimarães Junior Mario Anteveli Osajima Furtini Josy de Matos Alves Pinto Luciana de Paula Protásio Thiago Mendes Lourival Marin Guimarães Junior José Benedito 《Environmental science and pollution research international》2022,29(44):66562-66577
Environmental Science and Pollution Research - In recent years, research has been conducted in search of alternative adhesives that are less harmful to human health and the environment. Cardanol... 相似文献
70.
Tribaudino Mario Solzi Massimo Mantovani Luciana Zaccara Patrizia Groppi Elisa 《Environmental science and pollution research international》2022,29(42):63171-63181
Environmental Science and Pollution Research - Environmental monitoring in Northern Italy, one of the most polluted areas in Europe, is of paramount importance. Leaf monitoring throughout magnetic... 相似文献