在盆栽条件下研究了接种AM真菌摩西球囊霉(Glomus mosseae)和地表球囊霉(G.versiforme)对NaCl胁迫的枳(Poncirus trifoliata L.Raf.)实生苗生长和根系抗氧化酶的影响。结果表明:盐胁迫降低枳实生苗地上部鲜重及地下部鲜重,然而接种AM真菌促进了植物的生长。盐胁迫处理降低枳实生苗可溶性蛋白含量,但增加了抗氧化酶(SOD、CAT)的活性。盐胁迫和非盐胁迫下,接种处理的植株可溶性蛋白含量以及SOD和CAT活性均显著高于非接种处理的植株。西球囊霉(Glomus mosseae)提高枳实生苗耐盐性的效率比地表球囊霉(G.versiforme)更高。
An experiment was conducted to study the influences of AM fungi,Glomus mosseae and G.versiforme,on growth and root antioxidative enzymes of trifoliate orange (Poncirus trifoliata L.Raf) .seedlings under NaCl stress.The results showed that salt stress reduced shoot fresh weight and root fresh weight of trifoliate orange,whereas the inoculation with AM fungi enhanced the shoot fresh weight and the root fresh weight.Salt stress also reduced the soluble protein content in the roots of trifoliate orange,but increased the activities of antioxidative enzymes including SOD and CAT.Inoculated seedlings presented higher soluble protein content and activities of SOD and CAT in roots than non-inoculated seedlings under salt stress and nonsaline stress conditions.G.mosseae exhibited higher efficiency to enhance salt tolerance of trifoliate orange than G.versiforme.