FEF, Biyoloji Bölümü Koleksiyonu
https://hdl.handle.net/11436/902
2024-03-29T00:11:38ZSome schiff bases containing eugenol and guaiacol: Comparison of urease inhibition and anti-helicobacter pylori activities with Its azo analogs
https://hdl.handle.net/11436/8897
Some schiff bases containing eugenol and guaiacol: Comparison of urease inhibition and anti-helicobacter pylori activities with Its azo analogs
Kantar, Cihan; Baltaş, Nimet; Karaoğlu, Şengül Alpay; Şaşmaz, Selami
To improve and develop our monotherapeutic approach for Helicobacter pylori infection, some Schiff base compounds containing eugenol and guaiacol were synthesized and their antioxidant capacities, urease enzyme inhibition, and Anti-Helicobacter pylori effect were investigated and compared with azo analogs in the literature. All Schiff base compounds have been found to have both stronger urease enzyme inhibitory and more effective Anti-Helicobacter pylori properties than its azo analogs. In particular, the antimicrobial effect of Schiff bases containing eugenol increased dramatically when compared to their azo analogs.
2024-01-01T00:00:00ZRoad mortality report of the genus bufo in northeastern Türkiye
https://hdl.handle.net/11436/8873
Road mortality report of the genus bufo in northeastern Türkiye
Dursun, Cantekin; Özdemir, Nurhayat; Gül, Serkan
Abstract: Amphibians, especially those living near lakes, wetlands, and small water bodies, are the most vulnerable vertebrate group to vehicle collision. The aim of this study was to monitor and determine the causes of road mortality of two amphibian species (Bufo bufo and Bufo verrucosissimus) belonging to the same genus identified during the fieldwork conducted in April and June 2021. In total, 213 roadkill individuals have been detected in independent surveys. While 89.20% of these individuals were B. bufo, 10.80% of belonged to B. verrucosissimus. In general, amphibian road mortality is intense in the spring season. Moreover, the frequency of these mortalities can last until late summer. Our study supported the general pattern, and most of observations were recorded during spring (April–May) as well as summer period (June–July). The highest number of roadkill mortality was observed in İkizdere town of Rize province for B. bufo, and Murgul town of Artvin province for B. verrucosissimus. These areas with the highest number of deaths were determined as hotspots based on the heatmap shaped by kernel density calculation. Therefore, mitigation measures should be taken by local authorities to reduce mortality rate in these hotspots.
2023-01-01T00:00:00ZEffect of environmental pollution on nutritional indices and the phenoloxidase activity of agelastica alni (Coleoptera: Chrysomelidae) larvae
https://hdl.handle.net/11436/8872
Effect of environmental pollution on nutritional indices and the phenoloxidase activity of agelastica alni (Coleoptera: Chrysomelidae) larvae
Altun, Nurver; Özgenç, Şükrü; Kılcı, Leyla; Faiz, Özlem
Abstract: The present study investigated the nutritional indices and immune responses of Agelastica alni L. larvae in heavy metal pollution (cadmium, zinc, copper, nickel, and iron). Larvae collected from 2 different localities with different levels of heavy metal pollution were fed with leaves from 3 different localities. The localities and the corresponding plant samples were designated as low-pollution, moderate-pollution, and high-pollution regions based on their degree of pollution. The development duration, the nutritional indices (approximate digestibility, Efficiency of conversion of digested food, Efficiency of conversion of ingested food, Relative comcumption rate, and Relative growth rate), and the phenoloxidase activity of the larvae were determined. It was determined that approximate digestibility, efficiency of conversion of digested food, efficiency of conversion of ingested food values decreased when the larvae from the low-pollution locality were fed on the leaves with high pollution. The increase in the heavy metal content caused an increase in the approximate digestibility value for the larvae collected from high-pollution localities. In addition, the relative consumption rate values of the larvae collected from low-pollution localities were higher than the corresponding values for the larvae collected from high-pollution localities. The increase in heavy metals other than iron caused an increase in the phenoloxidase activities of the high-pollution larvae.
2024-01-01T00:00:00ZNano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production
https://hdl.handle.net/11436/8863
Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production
Ghorbani, Abazar; Emamverdian, Abolghassem; Pehlivan, Necla; Zargar, Meisam; Razavi, Seyed Mehdi; Chen, Moxian
The primary factors that restrict agricultural productivity and jeopardize human and food safety are heavy metals (HMs), including arsenic, cadmium, lead, and aluminum, which adversely impact crop yields and quality. Plants, in their adaptability, proactively engage in a multitude of intricate processes to counteract the impacts of HM toxicity. These processes orchestrate profound transformations at biomolecular levels, showing the plant’s ability to adapt and thrive in adversity. In the past few decades, HM stress tolerance in crops has been successfully addressed through a combination of traditional breeding techniques, cutting-edge genetic engineering methods, and the strategic implementation of marker-dependent breeding approaches. Given the remarkable progress achieved in this domain, it has become imperative to adopt integrated methods that mitigate potential risks and impacts arising from environmental contamination on yields, which is crucial as we endeavor to forge ahead with the establishment of enduring agricultural systems. In this manner, nanotechnology has emerged as a viable field in agricultural sciences. The potential applications are extensive, encompassing the regulation of environmental stressors like toxic metals, improving the efficiency of nutrient consumption and alleviating climate change effects. Integrating nanotechnology and nanomaterials in agrochemicals has successfully mitigated the drawbacks associated with traditional agrochemicals, including challenges like organic solvent pollution, susceptibility to photolysis, and restricted bioavailability. Numerous studies clearly show the immense potential of nanomaterials and nanofertilizers in tackling the acute crisis of HM toxicity in crop production. This review seeks to delve into using NPs as agrochemicals to effectively mitigate HM toxicity and enhance crop resilience, thereby fostering an environmentally friendly and economically viable approach toward sustainable agricultural advancement in the foreseeable future.
2024-01-01T00:00:00Z