土壤中非生物逆境胁迫与根系有机酸分泌-植物科学学报.PDF

武汉植物学研究 200 1, 19 (6) : 497～ 507 J ou rn a l of W uh an B otan ica l R esea rch 土壤中非生物逆境胁迫与根系有机酸分泌 李德华　贺立源　刘武定 (华中农业大学资源环境与农业化学系, 武汉　430070) 关键词: 非生物逆境; 根系; 有机酸分泌 ( ) 　　中图分类号: Q 945. 78　文献标识码: A 　文章编号: 1000470X 200 1 - Correla t ion between A b iot ic stre ss in So il - an d O rgan ic ac id Secret ion by Root , , L I D e H u a H E L i Yu an L IU W u D in g (H uaz hong A g r icu ltu ra l U n iv ers ity , W uh an　430070, Ch ina) : A bstract Secret ion o f o rgan ic acid from roo t s can op erate by m u lt ip le m ech a . n ism s in re sp on se to a num b er o f w ell def in ed env ironm en ta l st re sse s T h is re . sp on se s are h igh ly st re ss an d p lan t sp ecie s sp ecif ic O rgan ic acid e sp ecia lly , , , low m o lecu lar o rgan ic acid su ch a s m a late cit rate an d oxa late can car ry vary in g n egat ive ch arge, so th ey h ave b een p rop o sed b ein g invo lved in m any p ro ce sse s op erat in g in th e rh izo sp h ere, in clu d in g nu t r ien t acqu isit ion , m eta l detox if icat ion an d m in era l w eath er in g , ect. T h is rev iew summ ar ized