167,104 results match your criteria: "Department of Ecology & Evolutionary Biology Tulane University New Orleans LA USA.[Affiliation]"

Comparative Efficacy of Melatonin and Brassinolide in Mitigating the Adverse Effects of Cadmium on .

Int J Mol Sci

January 2025

Department of Biology and Plant Ecology, Faculty of Biology, University of Bialystok, Ciolkowskiego 1J, 15-245 Bialystok, Poland.

Melatonin (MT) and brassinolide (BL) are phytohormones that regulate various physiological processes in plants. This study investigates their effects on when exposed to cadmium (Cd). Plant hormones were quantified using liquid chromatography-mass spectrometry, while photosynthetic pigments and phytochelatins (PCs) were analyzed through high-performance liquid chromatography.

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Combined Transcriptomics and Metabolomics Uncover the Potential Mechanism of Plant Growth-Promoting Rhizobacteria on the Regrowth of After Mowing.

Int J Mol Sci

January 2025

Inner Mongolia Key Laboratory of Grassland Ecology and the Candidate State Key Laboratory of Ministry of Science and Technology, Inner Mongolia University, Hohhot 010010, China.

Mowing significantly influences nutrient cycling and stimulates metabolic adjustments in plants to promote regrowth. Plant growth-promoting rhizobacteria (PGPR) are crucial for enhancing plant growth, nutrient absorption, and stress resilience; however, whether inoculation with PGPR after mowing can enhance plant regrowth capacity further, as well as its specific regulatory mechanisms, remains unexplored. In this study, PGPR (B13) was inoculated into mowed to evaluate its effects on phenotypic traits, root nutrient contents, and hormone levels during the regrowth process and to further explore its role in the regrowth of after mowing.

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Autonomous Defense Based on Biogenic Nanoparticle Formation in Daunomycin-Producing .

Microorganisms

January 2025

VUAB Pharma A.S, Nemanicka 2722, 370 01 České Budějovice, Czech Republic.

Daunomycin is a chemotherapeutic agent widely used for the treatment of leukemia, but its toxicity toward healthy dividing cells limits its clinical use and its production by fermentation. Herein, we describe the development of a specialized cultivation medium for daunomycin production, including a shift to oil rather than sugar as the primary carbon source. This achieved an almost threefold increase in daunomycin yields, reaching 5.

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The present study examined the effect of the three different altitudes on the enzymatic activity and the prokaryotic communities of the rhizosphere of (L.) A.DC.

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The mammalian gastrointestinal tract is a stage for dynamic inter-kingdom interactions among bacteria, fungi, viruses, and protozoa, which collectively shape the gut micro-ecology and influence host physiology. Despite being a modest fraction, the fungal community, also referred to as mycobiota, represents a critical component of the gut microbiota. Emerging evidence suggests that fungi act as early colonizers of the intestine, exerting a lasting influence on gut development.

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The fungal genus is noted for its bioluminescence and the production of biologically active secondary metabolites. We isolated 47 fungal strains of germinated from spores of a single mushroom. We first noted a high degree of variation in the outward appearances in radial growth and pigmentation among the cultures.

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Bacterial Diversity Associated with Terrestrial and Aquatic Snails.

Microorganisms

December 2024

Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, 384 46 Volos, Greece.

The introduction of the holobiont concept has triggered scientific interest in depicting the structural and functional diversity of animal microbial symbionts, which has resulted in an unprecedented wealth of such cross-domain biological associations. The steadfast technological progress in nucleic acid-based approaches would cause one to expect that scientific works on the microbial symbionts of animals would be balanced at least for the farmed animals of human interest. For some animals, such as ruminants and a few farmed fish species of financial significance, the scientific wealth of the microbial worlds they host is immense and ever growing.

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Background/objectives: Frailty is a complex geriatric syndrome resulting in decreased physiological reserve. While genetics plays a role, the underlying mechanisms remain unsolved. Metallothioneins (MTs), metal-binding proteins with high affinity for zinc, an essential mineral for many physiological functions, are involved in processes including oxidative stress and inflammation.

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Antimicrobial-producing strains and their bacteriocins hold great promise for the control of bacterial diseases, being an attractive alternative to antibiotics. Thus, the aim of this study was to evaluate the inhibitory activity of 15 bacteriocin-producing staphylococci and mammaliicocci (BP-S/M) strains and their pre-purified extracts with butanol (BT) against a collection of 27 harmful or zoonotic strains (including Gram-positive/-negative bacteria and molds) with relevance in the public health and agro-food fields. These indicators (excluding Gram-negative strains) were grouped into seven categories based on their potential application areas: dairy livestock mastitis, avian pathogen zoonoses, swine zoonoses, food safety, aquaculture, wine making, and mushroom cultivation.

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Urinary tract infections (UTIs) are a substantial global health concern, exacerbated by the widespread use of antibiotics and leading to the development of multidrug-resistant strains. The aim of this study was to analyze the temporal patterns of and UTIs and antibiotic resistance, taking into account various sociodemographic, clinical, and climatic factors within the study population. A total of 3026 urine samples from patients of all ages were analyzed over a period of five years by standard microbiological methods.

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The European catfish ( Linnaeus, 1758) was introduced into the Ebro Basin in Spain in 1974 for recreational fishing. Since then, the species has spread throughout the country's river basins, reaching the Iznájar Reservoir (Guadalquivir River Basin) in 2011. This area is of great ecological and economic relevance, especially as it includes the Doñana National Park, one of the most important nature reserves in Europe.

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The Sublingua of and : Only a Cleaning Function?

Animals (Basel)

January 2025

Departamento de Anatomía y Radiología, GIR "Osteología y Anatomía Comparada", Universidad de Valladolid, 47005 Valladolid, Spain.

The sublingua is an anatomical structure located under the tongue. This rare organ can be present in some animals as a rudimentary structure, but among prosimian primates, such as lemurs and lorises, it is fully developed. In addition to the sublingua, prosimians have modified lower incisors and canines called "dental comb".

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Morphological and Molecular Identification of in Captive Cheetahs () in China Helps Clarify Phylogenetic Relationships with and .

Animals (Basel)

January 2025

Yunnan Key Laboratory for Plateau Mountain Ecology, Restoration of Degraded Environments, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, China.

To date, only one case is known where protozoan parasites of the genus were found to infect cheetahs (); the cysts in the musculature were morphologically identified as . Here, we characterized sarcocysts by morphological and molecular methods that were observed in cheetahs who died in zoos in China. Only one type of sarcocyst was present in two of six cheetahs.

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Gut Microbiota Secondary Metabolites: Key Roles in GI Tract Cancers and Infectious Diseases.

Biomedicines

January 2025

Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt.

The gut microbiota, a dynamic ecosystem of trillions of microorganisms, produces secondary metabolites that profoundly influence host health. Recent research has highlighted the significant role of these metabolites, particularly short-chain fatty acids, indoles, and bile acids, in modulating immune responses, impacting epigenetic mechanisms, and contributing to disease processes. In gastrointestinal (GI) cancers such as colorectal, liver, and gastric cancer, microbial metabolites can drive tumorigenesis by promoting inflammation, DNA damage, and immune evasion.

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Antioxidant and Laxative Effects of Methanol Extracts of Green Pine Cones () in Sprague-Dawley Rats with Loperamide-Induced Constipation.

Antioxidants (Basel)

December 2024

Department of Biomaterials Science (BK 21 FOUR Program), Life and Industry Convergence Research Institute, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Republic of Korea.

Oxidative stress is the key cause of the etiopathogenesis of several diseases associated with constipation. This study examined whether the green pine cone can improve the symptoms of constipation based on the antioxidant activities. The changes in the key parameters for the antioxidant activity and laxative effects were examined in the loperamide (Lop)-induced constipation of Sprague-Dawley (SD) rats after being treated with the methanol extracts of green pine cone (MPC, unripe fruits of ).

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Reproductive traits and plant-pollinator interactions largely depend on seasonal weather conditions, which are species-specific. is an ornamental plant distributed worldwide. There is little information about plant species' reproductive ecology and environmental factors' impact on it.

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Urinary schistosomiasis is caused by the blood fluke , which is predominantly found in Africa. The freshwater snail is its main intermediate host. The species that make up the group are genetically complex, and their taxonomic status remains controversial.

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The shallow-sea hydrothermal vent at Guishan Islet, located off the coast of Taiwan, serves as a remarkable natural site for studying microbial ecology in extreme environments. In April 2019, we investigated the composition of prokaryotic picoplankton communities, their gene expression profiles, and the dissolved inorganic carbon uptake efficiency. Our results revealed that the chemolithotrophs spp.

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: Coercion in contraceptive care occurs when healthcare providers unduly influence patients to use or not use birth control. Contraceptive coercion is antithetical to quality patient-centered care. However, it is unclear how experiencing contraceptive coercion relates to patients' lives and contraceptive outcomes.

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, an edible wild plant, is valued for its distinctive flavor and health-promoting properties. This study examines the proximate composition, bioactive compounds, and in vitro biological activities of seven leaves (, , , , var. , and ).

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(1) Background: A sustainable healthy diet assures human well-being in all life stages, protects environmental resources, and preserves biodiversity. This work investigates the sociodemographic factors, knowledge, trust, and motivations involved in organic food acquisition behavior. (2) Methods: An online survey via Google Forms platform, with 316 respondents, was conducted from 1 March to 31 May 2024.

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Ready-to-eat (RTE) foods are the most common sources of transmission. Whole-genome sequencing (WGS) enhances the investigation of foodborne outbreaks by enabling the tracking of pathogen sources and the prediction of genetic traits related to virulence, stress, and antimicrobial resistance, which benefit food safety management. The aim of this study was to evaluate the efficacy of WGS in the typing of 16 strains isolated from refrigerated foods in Chile, highlighting its advantages in pathogen identification and the improvement of epidemiological surveillance and food safety.

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The Germination and Growth of Two Strains of in Selected Hot Dishes After Cooking.

Foods

January 2025

Department of Animal Origin Food and Gastronomic Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic.

The aim of this study was to assess the germination and growth of two strains of following the artificial inoculation of six selected hot dishes with spores which were then stored at temperatures of 40, 50, and 60 °C for 0.5, 1.0, 2.

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An ecofriendly, effective, and selective spectrofluorimetric approach for natamycin analysis was developed using fluorescamine as a fluorogenic probe. Natamycin is the only topical ocular antifungal medication that is presently on the market for treating keratitis, conjunctivitis, and blepharitis caused by yeast and other fungi. Owing to its primary aliphatic amino group, natamycin can easily interact with fluorescamine resulting in the formation of the highly fluorescent diaryl pyrrolone derivative.

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Effects of socioeconomic and human-modified landscape variables on medicinal species richness at a macroscale: the case of the Caatinga, Brazil.

J Ethnobiol Ethnomed

January 2025

Programa de Pós-Graduação em Etnobiologia e Conservação da Natureza, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil.

Background: Ethnobiological studies at local scales have shown that knowledge of medicinal species tends to decrease as socioeconomic status and the extent of human-modified landscapes increase. However, it remains largely unknown whether these same factors can predict knowledge of useful species at broader scales and whether their interaction might create scenarios that enhance knowledge of medicinal species.

Methods: To address this, we tested whether knowledge of woody medicinal species-measured as the number of species known-is influenced by socioeconomic status, human-modified landscapes, and their interaction.

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