摘要
四环素是新兴污染物PPCPs中的一种,因其在畜禽及水产养殖中的大量使用在环境中造成一定的残留,成为一个较突出的环境风险问题。概述了环境中四环素的来源,对微生物、动物及植物的生态毒性,在土壤及水体中的残留及降解等环境行为。认为,环境中四环素的含量既使在很高的情况下,其对动物和植物的直接毒害作用也是有限的,四环素在环境中长期残留产生的抗性基因问题,可能是一个重要的研究方向。
Tetracycfine（ TC） is one of emerging pollutant pharmaceuticals and personal care products（ PPCPs） and belongs to tetracycline antibiotics. Due to TC was broadly and largely applied in livestock and aquiculture,it was easily remnant in environment and showed some potential environmental risks. This article reviewed the resoures of TC in environment,the eco-toxicities of it to micooganism,animal and plant,the residue of it in soil and water and its degradation. The result showed that the concentration of TC in soil piled with animal manure near the livestock farm was very high. In addition,the TC residue in soil fertilizered by animal manure was also higher. However,TC concentrations in most soils without animal manure fertilizered were only as background levels. The residue of TC in soil was mostly in topsoil. The eco-toxicity of TC to soil was mainly focused on microorganism,but seldom on the plant root and soil animal.The roles of TC to soil microorganism were influenced by two important factors,i. e. TC concentration and some soil factors such as soil organic matter varieties and contents,mineral type,p H and so on. Normally,the sensitiveness of monad to TC was higher than that of multicellutar organism. In different water environments,there were really some TC residues.Usually,direct surface runoff and aquiculture were mainly resources of TC in water. Though the researches of TC ecotoxicity to biologies in water were much wider than that of it in soil,most studies were the short time toxicity effect based on some physiological indexes such as growth,dead and breed. As for the studies of TC to aquatic organism,especially on its physiological,biochemistry and molecular indexes were seldom. Although TC can be degraded in soil environment through a series of degradation reactions such as hydrolysis,light degradation,micro-biological degradation and so on,there werenot too much reports concerning TC degradation in soil. Some researches about TC degradation were documented only in compost. By contrast,the st
出处
《生态学报》
CAS
CSCD
北大核心
2015年第9期2819-2825,共7页
Acta Ecologica Sinica
基金
国家科技支撑项目(2012BAC17B04)
国家"863"计划(2012AA06A202)
国家自然科学基金项目(31270540
31070455
40971184)
中国博士后科学基金项目(20090461195
201003626)
辽宁省自然基金项目(201102224)
关键词
四环素
环境行为
新兴污染物
tetracycfine envirionmental behavior emerging contaminant
