山东建筑大学学报
山東建築大學學報
산동건축대학학보
JOURNAL OF SHANDONG JIANZHU UNIVERSITY
2015年
2期
170-176
,共7页
水稻%汞%来源%生理生化毒性%调控措施
水稻%汞%來源%生理生化毒性%調控措施
수도%홍%래원%생리생화독성%조공조시
rice%mercury%sources%physiological and biochemical toxicity%controlling measures
汞是一种全球性的污染物,具有不可降解、易迁移和生物积累等特性,在一定条件下可转化为毒性更大的甲基汞。水稻是重要的粮食作物之一,稻米对汞尤其是甲基汞有较强的富集能力,环境中的汞进入水稻体内可影响其正常生长,并通过食物链对人体产生危害。文章阐述了水稻中汞含量的现状,分析了水稻中汞的来源,阐明了汞对水稻毒性的生理生化效应,提出了降低水稻汞污染的调控措施;针对现阶段水稻汞污染研究的不足,展望了水稻汞污染机理和调控等方面的研究趋势。
汞是一種全毬性的汙染物,具有不可降解、易遷移和生物積纍等特性,在一定條件下可轉化為毒性更大的甲基汞。水稻是重要的糧食作物之一,稻米對汞尤其是甲基汞有較彊的富集能力,環境中的汞進入水稻體內可影響其正常生長,併通過食物鏈對人體產生危害。文章闡述瞭水稻中汞含量的現狀,分析瞭水稻中汞的來源,闡明瞭汞對水稻毒性的生理生化效應,提齣瞭降低水稻汞汙染的調控措施;針對現階段水稻汞汙染研究的不足,展望瞭水稻汞汙染機理和調控等方麵的研究趨勢。
홍시일충전구성적오염물,구유불가강해、역천이화생물적루등특성,재일정조건하가전화위독성경대적갑기홍。수도시중요적양식작물지일,도미대홍우기시갑기홍유교강적부집능력,배경중적홍진입수도체내가영향기정상생장,병통과식물련대인체산생위해。문장천술료수도중홍함량적현상,분석료수도중홍적래원,천명료홍대수도독성적생리생화효응,제출료강저수도홍오염적조공조시;침대현계단수도홍오염연구적불족,전망료수도홍오염궤리화조공등방면적연구추세。
Mercury( Hg ) is a global pollutant,and it is non-degradable,easy to migrate and bioaccumulate in environment. Mercury may be methylated into extremely toxic methyl mercury ( MeHg)in certain condition. Rice is one of the most important crops,however,it also had strong ability of enrichment mercury,especially methyl mercury. Moreover,mercury in environment can enter into the rice plant and affect its normal growth,then cause hazard to human body through food chain. In this review,we expounded the present situation of mercury concentration in rice,summed up the sources of Hg in rice,summarized the physiological and biochemical toxicity of Hg to rice,and finally,put forward the available measures which could reduce mercury pollution to rice. Aiming at the shortcomings of the present studies, future researches about the mechanism and controlling methods of mercury contamination in rice were discussed.