167,029 results match your criteria: "Department of Ecology & Evolutionary Biology Tulane University New Orleans LA USA.[Affiliation]"

In recent years, the near-infrared (NIR) fluorescence theranostic system has garnered increasing attention for its advantages in the simultaneous diagnosis- and imaging-guided delivery of therapeutic drugs. However, challenges such as strong background fluorescence signals and rapid metabolism have hindered the achievement of sufficient contrast between tumors and surrounding tissues, limiting the system's applicability. This study aims to integrate the pegylation strategy with a tumor microenvironment-responsive approach.

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Distribution data on the lacewing fauna of the data-deficient Transcarpathian Lowland (West Ukraine) were provided. The attractivity of phenylacetaldehyde-(FLO) and isoamyl alcohol-based (SBL) lures designed for trapping lepidopteran pests to lacewings was also studied and compared to the efficiency of light traps traditionally used in studies on neuropterans. In the three-year study, 374 individuals of 10 species were caught.

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A Review on the Nomenclature and Taxonomy of the Old World Thread-Legged Bug Genus (Hemiptera: Reduviidae: Emesinae).

Insects

January 2025

MOA Key Lab of Pest Monitoring and Green Management, Department of Entomology, College of Plant Protection, China Agricultural University, Yuanmingyuan West Road, Beijing 100193, China.

The nomenclatural and taxonomic issues regarding the thread-legged bug genera Kirkaldy, 1901 and Bergroth, 1903 are reviewed, and is concluded to be the valid name of the genus. A comprehensive review of is conducted, resulting in 18 new combinations and two new synonymies [ (Villiers, 1970) , (Ghate, Boyane & Joshi, 2019) , (Bergroth, 1903) , (McAtee & Malloch, 1926) , (Paiva, 1919) , (Lhoste, 1939) = Miller, 1956 , (Kulkarni & Ghate, 2016) , (Ribes, 1987) , (Lhoste, 1939) , (McAtee & Malloch, 1926) , (Villiers, 1972) , (Wygodzinsky, 1966) , (Wygodzinsky, 1966) , (Distant, 1906) , (Villiers, 1970) , (Horváth, 1910) , (Villiers, 1949) = Miller, 1954 , and (Rédei, 2005) ]. The bibliographies, diagnosis, and known distribution records are presented for all described species, and three new species [ (from Yunnan, China), (from Sabah, Malaysia), and (from Sulawesi, Indonesia)] are described.

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Thermal Melanism in (Coleoptera: Scarabaeidae: Cetoniinae).

Insects

January 2025

Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44 Praha, Czech Republic.

Thermal polymorphism, usually represented by thermal melanism (darker coloration in cooler habitats), is a well-known phenomenon in animals. In Cetoniinae, several species in captivity tend to become darker after several generations of breeding, which is probably caused by a lower temperature than is typical for their native habitats. is a beetle species occurring in Somaliland.

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Characterizing Stream Condition with Benthic Macroinvertebrates in Southeastern Minnesota, USA: Agriculture, Channelization, and Karst Geology Impact Lotic Habitats and Communities.

Insects

January 2025

Program in Ecology and Environmental Science and Large River Studies Center, Department of Biology, Winona State University, Winona, MN 55987, USA.

Prior to implementing watershed-wide projects to reduce the impacts of agriculture on regional streams and rivers, stream habitats and benthic aquatic macroinvertebrate communities were assessed at 15 sites on the South Branch Root River and its major tributaries in southeastern Minnesota, USA. Triplicate kick-net samples were collected from each site during three time periods (1998, 1999, 2006/2008) and stream habitats were inventoried within 150 m long sections at each site. In total, 26,760 invertebrates representing 84 taxa were collected and used to rate stream sites using a regional multi-metric benthic index of biotic integrity (BIBI).

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, a New Genus of the Tarsonemid Tribe Pseudotarsonemoidini (Acari: Heterostigmatina) from Mexico.

Insects

January 2025

Systematic Entomology Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD 20705, USA.

A new genus for the tribe Pseudotarsonemoidini of the family Tarsonemidae is established in order to accommodate undescribed mites associated with bark beetles in Mexico. The new, monotypic genus , with the type species being diagnostically and phylogenetically closest to the derived - cluster of the Pseudotarsonemoidini, possesses an intermediate position between these two genera. Details of the morphology related to its genus-level affiliation, primarily tibiotarsal I claw and leg setation, are compared in the context of the other genera of the tribe.

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Cannabidiol (CBD) is one of the major phytochemical constituents of cannabis, , widely recognized for its therapeutic potential. While cannabis has been utilized for medicinal purposes since ancient times, its psychoactive and addictive properties led to its prohibition in 1937, with only the medical use being reauthorized in 1998. Unlike tetrahydrocannabinol (THC), CBD lacks psychoactive and addictive properties, yet the name that suggests its association with cannabis has significantly contributed to its public visibility.

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Accelerated photooxidation of salicylic acid (SA) was performed using UV radiation and hydrogen peroxide. HPLC-MS analysis showed that the primary intermediates are 2,5-dihydroxybenzoic acid, 2,3-dihydroxybenzoic acid, pyrocatechol, and phenol. Deeper oxidation leads to low molecular weight aliphatic acids, such as maleic, fumaric, and glyoxylic.

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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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