盐渍条件下丛枝菌根真菌对番茄营养吸收及离子毒害的影响

doi:10.3969/j.issn.1000-7091.2013.01.033

摘要/Abstract

摘要： 为探究盐渍条件下丛枝菌根真菌对番茄营养吸收及离子毒害的作用,采用盆栽试验研究了不同浓度NaCl(0.5%和1%)胁迫下,接种丛枝菌根真菌Glomus mosseae-2对番茄营养吸收的影响。结果表明:在盐胁迫下,番茄接种Glomus mosseae-2,显著提高了地上部及根系N、P、K+和Ca2+的含量,显著降低Na+含量,对Cl-含量虽有减少但无显著影响。接种后还显著影响盐胁迫下植株的营养吸收及平衡,增加地上部及根系K+/Na+、P/Na+、Ca2+/Na+及根系P/Cl-值。这些比值与植株总干质量均呈显著正相关,其中与K+/Na+、P/Na+、Ca2+/Na+相关性最大。接菌番茄耐盐性提高与AMF改善植株营养状况尤其是提高K、P含量,保持较高K+/Na+、P/Na+、Ca2+/Na+比值、降低植株Na+含量从而降低Na+对植株的毒害作用有关。

关键词: 番茄, 丛枝菌根真菌, 盐胁迫, 营养吸收, 离子毒害

Abstract: Soil salinization in facilities is incReasingly seRious，aRbusculaR mycoRRhizal fungi is widespRead plantpaRasitic micRobial in soil． In oRdeR to exploRe the Role of aRbusculaR mycoRRhizal fungi on nutRient absoRption and ion toxicity in tomato undeR saline conditions，effect of aRbusculaR mycoRRhizal fungi on nutRition absoRbing and ion damage in tomato undeR diffeRent NaCl stRess( 0． 5%，1 %) was sutdied． The Results showed that N，P，K + and Ca + content impRoved and Na + decReased significantly， but Cl - content decReased indistinctively afteR AMF inoculation． UndeR the same salt stRess，higheR K+ /Na + ，P/Na + ，Ca2 + /Na + and P/Cl - Ratio weRe obseRved in AM plants compaRed to coRResponding non-AM plants． These values of Ratio had significantly positive Relation with dRy weight and K+ / Na + ， P/ Na + ，Ca2 + / Na + weRe moRe closely Related with dRy weight． So，enhanced salt toleRance in AM tomato weRe Related with impRoved nutRition condition，especially higheR K，P content，K + / Na + ，P /Na + and loweR Na + content which Reduced Na + damage to plant．

Key words: Tomato, ARbusculaR mycoRRhizal fungi, Salt stRess, NutRition absoRbing, Ion damage

中图分类号:

S641．01

贺忠群, 贺超兴. 盐渍条件下丛枝菌根真菌对番茄营养吸收及离子毒害的影响[J]. 华北农学报, 2013, 28(1): 181-186. doi: 10.3969/j.issn.1000-7091.2013.01.033.

HE Zhong-qun, HE Chao-xing. Effect of ARbusculaR mycoRRhizal Fungi on NutRition AbsoRbing and Ion Damage in Tomato undeR Salt StRess[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(1): 181-186. doi: 10.3969/j.issn.1000-7091.2013.01.033.

http://www.hbnxb.net/CN/Y2013/V28/I1/181

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