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951.
Leen Depauw Michael P. Perring Dries Landuyt Sybryn L. Maes Haben Blondeel Emiel De Lombaerde Guntis Brūmelis Jörg Brunet Déborah Closset-Kopp Guillaume Decocq Jan Den Ouden Werner Härdtle Radim Hédl Thilo Heinken Steffi Heinrichs Bogdan Jaroszewicz Martin Kopecký Ilze Liepiņa Martin Macek František Máliš Wolfgang Schmidt Simon M. Smart Karol Ujházy Monika Wulf Kris Verheyen 《应用植被学》2021,24(1):e12532
952.
Alejandro Ramirez Garcia Jianbo Zhang Anna Greppi Florentin Constancias Esther Wortmann Muriel Wandres Katherine Hurley Alberto Pascual-García Hans-Joachim Ruscheweyh Shana J. Sturla Christophe Lacroix Clarissa Schwab 《Environmental microbiology》2021,23(3):1765-1779
Glycerol/diol dehydratases (GDH) are enzymes that catalyse the production of propionate from 1,2-propanediol, and acrolein from glycerol. Acrolein reacts with dietary carcinogenic heterocyclic amines (HCA), reducing HCA mutagenicity, but is itself also an antimicrobial agent and toxicant. Gut microbial GDH activity has been suggested as an endogenous acrolein source; however, there is limited information on the potential of the intestinal microbiota to have GDH activity, and what impact it can have on the intestinal ecosystem and host health. We hypothesized that GDH activity of gut microbiota is determined by the abundance and distribution of GDH-active taxa and can be enhanced by supplementation of the GDH active Anaerobutyricum hallii, and tested this hypothesis combining quantitative profiling of gdh, model batch fermentations, microbiota manipulation, and kinetic modelling of acrolein formation. Our results suggest that GDH activity is a common trait of intestinal microbiota shared by a few taxa, which was dependent on overall gdh abundance. Anaerobutyricum hallii was identified as a key taxon in GDH metabolism, and its supplementation increased the rate of GDH activity and acrolein release, which enhanced the transformation of HCA and reduced fermentation activity. The findings of this first systematic study on acrolein release by intestinal microbiota indicate that dietary and microbial modulation might impact GDH activity, which may influence host health. 相似文献
953.
954.
Ibarra-López Alejandro Ojeda-Zacarías Ma. del Carmen Lozoya-Saldaña Héctor Vázquez-Alvarado Rigoberto E. Olivares-Sáenz Emilio Treviño-Ramírez José E. 《In vitro cellular & developmental biology. Plant》2021,57(6):942-953
In Vitro Cellular & Developmental Biology - Plant - Texas ebony (Ebenopsis ebano [Berland.] Barneby & J.W. Grimes) is a member of the Fabaceae that is native to Mexico. Its wood has... 相似文献
955.
Paul H. Gobster Ingrid E. Schneider Kristin M. Floress Anna L. Haines Arne Arnberger Michael J. Dockry Claire Benton 《Restoration Ecology》2021,29(1)
Pine barrens are open‐canopy ecological communities once prevalent on sandy soils across the northern Great Lakes Region of the United States and Canada, though fire suppression and plantation forestry have now reduced them to a few isolated areas. Efforts to restore pine barrens are underway on some public lands, but lack of knowledge on the social and ecological issues and challenges that affect these projects impedes fuller progress. As a precursor to designing a public preference survey for pine barrens restoration, we sought input from those with expert knowledge about pine barrens. Using a three‐round modified Delphi survey, forest land managers and researchers identified the key characteristics of pine barrens and important current and future management challenges. Key characteristics were related to fire, landscape structure, plant and animal species, soils, and social themes. Current and future challenges were related to landscape, invasive species, social, economic, climate change, and science themes. Four social issues (education, fire acceptance, fire risk, aesthetics) were rated among the top current challenges but none of them maintained prominence as future challenges. Potential explanations for this shift are that the experts felt these social concerns would be resolved in time or that other issues, such as development pressures and budgets for carrying out restoration, would become greater future challenges. Our approach can be used by managers and researchers to better understand the ecosystems they seek to restore and to communicate with public stakeholders about restoration efforts. 相似文献
956.
957.
Joseph Jacob Giczewska Anna Alhanti Brooke Cheema Amrita K. Handy Diane E. Mann Douglas L. Loscalzo Joseph Givertz Michael M. 《Journal of physiology and biochemistry》2021,77(2):295-304
Journal of Physiology and Biochemistry - Redox balance and methylation are crucial to homeostasis and are linked by the methionine-homocysteine cycle. We examined whether differences in methylation... 相似文献
958.
Martini Claudia Sosa Fernando Nicolas Malvicini Ricardo Pacienza Natalia Yannarelli Gustavo del C. Vila María 《Journal of physiology and biochemistry》2021,77(4):601-611
Journal of Physiology and Biochemistry - Alendronate, a bisphosphonate used to prevent osteoporosis, stimulates osteogenesis but impairs adipogenesis. Different clinical trials suggest that the... 相似文献
959.
Yesenia Pacheco-Hernández Carlos Jonnathan Castro-Juárez Sergio Alberto Ramírez-García Ramiro Cruz-Durán Edmundo Lozoya-Gloria Nemesio Villa-Ruano 《Journal of Asia》2021,24(2):243-249
Preventive measures based in the control of insect vectors are considered as the best choice to decrease the incidence of insect-borne diseases. Herein we report on the volatile content of the leaf essential oils from Marina neglecta, a medicinal plant distributed in the tropical regions of southern Mexico. In order to investigate the chemical variation of the essential oils, a volatile screening was performed during the four seasons of the years 2016–2019. Simultaneously, their biological activity was tested on distinct life stages of Meccus pallidipennis, M. bassolsae, Aedes aegypti and A. albopictus. Essential oils were mainly constituted of β-pinene (>30%) β-caryophyllene (>25%) and germacrene D (>13%). Dorsal-abdomen application of essential oils on triatomines, revealed an efficient LC50 for nymphs of the stages I to III (4 µg/insect), nymphs of the stages IV to V (5–6 µg/insect), and adults (7–8 µg/insect). The LT50 for the stages I to III was between 6 and 8 h, whereas that for the stages IV to V and adults oscillated between 12 and 16 h and 22 to 26 h, respectively. Fumigation experiments performed on nymph V, demonstrated that 300 µg L?1 air produced 100% mortality after 72 h post-treatment. Among tested volatiles, β-pinene and β-caryophyllene produced a comparable mortality rate (p < 0.01) than that of essential oils in the stages assayed. Essential oils showed strong larvicidal (LC50, 24–36 µg mL?1) and adulticidal (35–48 µg mL?1) activities in mosquito species with an LT50 of 4.5 h and 25–35 min, respectively. The evaluation of β-pinene produced a significant mortality rate (p < 0.01) in larvae whereas germacrene D was the most effective volatile (p < 0.01) against adults of both mosquito species. According to our results, β-pinene was the most effective volatile against the four insect species evaluated and its effect was comparable to that of the essential oil. 相似文献
960.
Les Francisco Cásedas Guillermo Gómez Carlota Moliner Cristina Valero Marta Sofía López Víctor 《Journal of physiology and biochemistry》2021,77(1):109-131
Journal of Physiology and Biochemistry - Diabetes mellitus is a chronic metabolic disease characterized by high blood glucose concentration. Nowadays, type 2 diabetes or insulin resistant diabetes... 相似文献