Biological and Ecological Risk Assessment and Management

A special issue of Biology (ISSN 2079-7737). This special issue belongs to the section "Ecology".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1554

Special Issue Editors


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Guest Editor
Institute of Nuclear and Agricultural Sciences, Zhejiang University, Hangzhou 310058, China
Interests: radioactive tracing; environmental fate and toxicity of agrochemicals and contaminants; environmental biophysics; ecosystems; human health
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Co-Guest Editor
College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
Interests: environmental biophysics; environmental behavior and health risks of organic pollutants; microbial degradation of organic pollutants

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Co-Guest Editor
College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
Interests: establishment of isotope tracer methods in bioscience and technology; absorption and distribution of nutrients in crops; environmental behavior of agrochemicals and environmental pollutants

Special Issue Information

Dear Colleagues,

Microplastics, tiny plastic fragments less than 5 mm in size, have emerged as a pervasive environmental pollutant, pervading marine, freshwater, and terrestrial ecosystems globally. Originating from the breakdown of larger plastic items, cosmetic products, and industrial processes, these particles pose significant threats to environmental health and biodiversity. Their widespread presence underscores the urgency to understand their biodegradation capabilities, biological impacts on various organisms, and the potential risks they pose to ecosystems and human health. Despite their small size, microplastics carry a large environmental footprint, acting as vectors for toxic chemicals and pathogens that can accumulate in the food chain. This research area is crucial, as understanding the biodegradation and transformation, biological impacts, and effective analysis methods for microplastics are fundamental in formulating effective mitigation strategies in the environment. Furthermore, advanced analysis technologies and comprehensive risk assessment frameworks are imperative to quantify the extent of pollution, evaluate the ecological and health risks, and inform policy decisions aimed at reducing the environmental footprint of plastics. The study of microplastics embodies a multidisciplinary challenge, involving chemistry, ecology, toxicology, and environmental science, highlighting the importance of integrated approaches to address the complex issues they present. Hence, we cordially invite you to contribute to this Special Issue by submitting your manuscripts. Research areas may include (but not limited to) the following:

  • The fate, degradation, and transformation of microplastics in environment and ecosystems, including plant and aquatic ecosystems
  • Biological effects of microplastics on plants and microbial communities
  • Advanced analytical techniques for microplastics
  • Risk assessment related to the microplastics
  • Strategies for bioremediation and biomonitoring of microplastic contaminants
  • Comprehensive modeling for the fate and ecological risk assessment of microplastics

We look forward to receiving your contributions.

Prof. Dr. Haiyan Wang
Dr. Yan Chen
Dr. Enguang Nie
Guest Editors

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Keywords

  • microplastics
  • biological effects
  • biodegradation and transformation
  • ecotoxicity
  • analysis technologies
  • health risk
  • risk assessment
  • bioremediation

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Published Papers (1 paper)

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Research

13 pages, 1822 KiB  
Article
Varietal Differences in the Environmental Behavior of 14C-Caffeine in Tea Plants: Accumulation, Subcellular Distribution, and Metabolism
by Yan Chen, Kaitai Song, Huizhong Hu, Haiyan Wang and Xinqiang Zheng
Biology 2025, 14(2), 177; https://doi.org/10.3390/biology14020177 - 10 Feb 2025
Viewed by 712
Abstract
Caffeine contamination in water sources raises concerns about its transfer to agricultural products and potential risks to human health through the food chain. Despite these concerns, limited research has focused on the accumulation and distribution of exogenous caffeine in tea plants. This study [...] Read more.
Caffeine contamination in water sources raises concerns about its transfer to agricultural products and potential risks to human health through the food chain. Despite these concerns, limited research has focused on the accumulation and distribution of exogenous caffeine in tea plants. This study explored the uptake, translocation, targeted accumulation, subcellular distribution, and preliminary metabolism of 14C-labeled caffeine in a hydroponic tea seedling system. After 192 h of cultivation, more than 83.8% of the caffeine had been removed from the nutrient solution. Within the plants, 14C-caffeine and its metabolites predominantly accumulated in the roots. Subcellular analysis indicates that in root cells, 14C was mainly distributed in the soluble fraction, cell walls, and plastids, while in shoot cells, it was concentrated in the soluble fraction and cell walls. Metabolic profiling reveals distinct varietal differences: in Longjing 43 tea seedlings, 14C was predominantly present as the caffeine parent compound, whereas in Jiaming No. 1 tea seedlings, 14C was found both as the parent compound and as its metabolite, xanthine. This study revealed differences in the uptake, translocation, and metabolism of exogenous caffeine among different tea plant varieties, providing broader insights into the impact of caffeine pollution on agricultural ecosystems. Full article
(This article belongs to the Special Issue Biological and Ecological Risk Assessment and Management)
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