Results 71 to 80 of about 2,075 (216)

S-nitrosoglutathione-loaded chitosan nanoparticles promote adaptive responses to water deficit in the critically endangered conifer Araucaria angustifolia

Frontiers in Plant Science
Araucaria angustifolia, a conifer adapted to cold and high-altitude climates, is increasingly threatened by climate change, which further raises its existing risk of extinction.
Rafael C. da Silva, Rafael C. da Silva, Giovanna C. Do Carmo, Ana C. Preisler, Leonardo F. Tavares, Evandro A. Vieira, Joana C. Pieretti, Cecília B. Aragão, Amedea B. Seabra, Halley C. Oliveira, Marília Gaspar   +10 more
doaj   +1 more source

Oxidative Damage, Energy Imbalance, and Behavioral Disruptions in Girardia tigrina Exposed to Treated Sewage Effluents

Environmental Toxicology, EarlyView.
ABSTRACT This study assessed the ecotoxicological effects of treated sewage on the freshwater planarian Girardia tigrina, integrating biochemical, energetic, and behavioral biomarkers. Planarians were exposed for 48 h to different concentrations of treated sewage (12.5%, 25%, 50%, and 100%) and compared to controls using commercial water and water from
Renata M. P. Freitas, Pedro H. Carvalho, Daniela de Melo e Silva, Carlos Gravato   +3 more
wiley   +1 more source

Monoicy in A. angustifolia (Bert.) O. Kuntze (Araucariaceae): I. Morphological aspects of the reproductive structures

Anais da Academia Brasileira de Ciências, 2009
Araucaria angustifolia (Bert.) O. Kuntze is a dioecious conifer species native of Brazil. The rare occurrence of monoiceous specimens have been attributed to pathogenic infections or other injuries in adult trees.
Valdir M. Stefenon, Clarissa A. Caprestano   +1 more
doaj   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

Environmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão, Igor Romeiro dos Santos, Jerônimo Raimundo de Oliveira Neto, Flávio Olimpio Sanches Neto, Felipe Cirqueira Dias, Jéssyca Moreira Morais, Lorranny Pereira de Assis Valadares, Naiara Raica Lopes de Oliveira, Mirelle Garcia Silva Bailão, Luiz Carlos da Cunha, Valter Henrique Carvalho‐Silva, Thiago Lopes Rocha, Elisa Flávia Luiz Cardoso Bailão   +12 more
wiley   +1 more source

Bioactive and Biodegradable Films Packaging Incorporated with Acca Sellowiana Extracts: Physicochemical and Antioxidant Characterization

Chemical Engineering Transactions, 2019
In this work a new biodegradable film was developed, and bioactive compounds from Acca sellowiana were incorporated. Film packaging production was carried out from an aqueous filmogenic solution, with a blend of Brazilian pine seeds starch, citric pectin,
William Gustavo Sganzerla, Bruna Branco Paes, Monia Azevedo, Jocleita Ferrareze, Cleonice G. Da Rosa, Michael Ramos Nunes, Ana Paula De Lima Veeck   +6 more
doaj   +1 more source

Genetic structure of plantations and the conservation of genetic resources of Brazilian pine (Araucaria angustifolia)

Forest Ecology and Management, 2008
Abstract With growing concern about maintenance of genetic variation and conservation of gene resources, the question arises on the extent to which a planted population should be considered a resource able to preserve the gene pool of a species. In this study, levels of genetic diversity were assessed in natural and planted populations of Araucaria ...
Stefenon, Valdir Marcos, Gailing, Oliver, Finkeldey, Reiner   +2 more
openaire   +2 more sources

Juvenile and Pubertal Exposure to Polystyrene Nanoplastics Impairs Epididymal Structure and Sperm Quality in Mice

Environmental Toxicology, EarlyView.
ABSTRACT Nanoplastics (NPs) are emerging environmental contaminants capable of crossing biological barriers, accumulating in tissues, and disrupting physiological pathways. The male reproductive system is particularly vulnerable during the postnatal period, a developmental window characterized by intense testicular differentiation and epididymal ...
Gabriel Magalhães Oliveira Rigo, Nicoly Caixêta Gonçalves, Cristiana Livramento Oliveira Pinto, Patrícia Corona Lopes, Raul Silva Santarem, Juliana Reis Machado, Régia Caroline Peixoto Lira, Ana Paula Ramos, Marcos Vinicius da Silva, Hugo Felix Perini, Gláucia Eloisa Munhoz de Lion Siervo   +10 more
wiley   +1 more source

Climate‐Modulated Particle Toxicity: Acute Exposure to an Environmentally Informed Microplastic Mixture Induces Sex‐Dependent Systemic Reorganization in Swiss Mice

Environmental Toxicology, EarlyView.
ABSTRACT Microplastic (MP) pollution is widely recognized as an emerging environmental threat. Yet, most studies still rely on controlled experimental conditions that poorly reflect environmental complexity, potentially underestimating risks under realistic scenarios, particularly during short‐term exposures. Here, we tested whether acute oral exposure
Guilherme Malafaia, Rafaela Ribeiro de Brito, Aline Sueli de Lima de Rodrigues, Omar Cruz Santiago, Andrés Hugo Arias, Thiarlen Marinho da Luz   +5 more
wiley   +1 more source

Screening of Brazilian Isolated Yeasts Reveals Multiple Potential Chassis for Industrial Biotechnology

Yeast, EarlyView.
Harnessing Brazilian microbial diversity, comprehensive phenotypic screening of 79 yeast isolates identified non‐conventional strains with superior multi‐stress tolerance and metabolic versatility compared to S. cerevisiae under industrially relevant conditions.
Giovanna R. Maklouf, Lara I. S. Sousa, Juliana Pimentel Galhardo, Cecilia Trivellin, João Pedro R. Prado, Tássia Cristina da Silva, Ana C. S. R. de Carvalho, Juliana José, Gonçalo A. G. Pereira, Marcelo F. Carazzolle, Fellipe S. B. de Mello   +10 more
wiley   +1 more source

A Tribunal Only in Name: Anarchic Sensibilities at the International Tribunal on Crimes Against Women, 1976

History, EarlyView.
Abstract In March 1976, around 2000 women from forty countries arrived at the Palais des Congrès in Brussels to participate in the first International Tribunal on Crimes Against Women. Explicitly positioning themselves against the United Nations‐led ‘International Year of the Woman’, the organizers and participants of the tribunal proclaimed a global ...
NIVEDITA JOON
wiley   +1 more source