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。
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．
[1] MaRschneR H． MineRal nutRient acquisition in nonmycoRRhizak and mycoRRhizal plants[J]． Phyton-Annales Rei Botanicae AustRia， 1996， 36: 61 - 68．
[2] MiRansaRi M，BahRami H A，Rejali F， et al． Using aRbusculaR mycoRRhiza to Reduce the stRessful effects of soil compaction on wheat( TRiticumaestivum L． ) gRowth[J]． Soil Biol Biochem， 2008， 40: 1197 - 1206．
[3] Ruoz-lozano J M，Collados，BaRea J M， et al． Clonig of cDNAS encoding SODs fRom lettuce plants which show diffeRential Regulation by aRbusculaR mycoRhizal symbiosis and by dRought stRess[J]． J Exp Bot，2001，52: 2241 - 2242．
[4] BeRmudez M，Azcon R． Calcium uptake by alfalfa as modified by a mycoRRhizal fungus[J]． Plant Soil，1996，134: 189 - 207．
[5] Poss J A，Pond E，Menge J，et al． Effect of salinity on mycoRRhizal onion and tomato in soil with and without additional phosphate[J]． Plant and Soil， 1985， 88: 307 - 319．
[6] BoRie F，Rubio R． Effects of aRbusculaR mycoRRhizae and liming on gRowth and mineRal acquisition of aluminum-toleRant and aluminum-sensitive baRley cultivaRs[J]． J Plant NutR， 1999， 22: 121 - 137．
[7] Chen S，LI J，Wang S，et al． Salt，nutRient uptake and tRanspoRt and ABA of populus euphRatica; a hybRid in Response to incReasing soil NaCl[J]． TRees，2001，15( 3) : 186 - 194．
[8] AndRes P S，MaRia L S M，AndRes P P，et al． ARbusculaR mycoRRhizal fungi incReased gRowth，nutRient uptake and toleRance to salinity in olive tRees undeR nuRseRy conditions
[J]． JouRnal of Plant Physiology， 2009， 166: 1350 - 1359．
[9] Hasegawa P M，BRessan R A，Hanada A K． CellulaR mechanisms of salinity toleRance[J]． HoRt Science，1986，21: 1317 - 1325．
[10] MaRtinez V，Lauchli A． Salt-induced inhibition of phosphate uptake in plants of cotton ( Gossypium hiRsutum L．) [J]． New Phytol， 1994， 125: 609 - 614．
[11] 姜伟，崔世茂，张怡婷，等． KNO3、K2 SO4 及其混盐 胁迫对辣椒幼苗生长和光合特性的影响[J]． 华北农 学报， 2011， 26( 2) : 192 - 197．
[12] 姜伟，崔世茂，王勇，等． KNO3、K2 SO4 及其混盐 胁迫对辣椒幼苗叶片N、P、K 含量的影响[J]． 华北 农学报， 2010， 25( 5) : 218 - 223．
[13] 刘丽云，王明友． CaCl2 对盐胁迫下小麦种子萌发及 生理效应的影响[J]． 河南农业科学， 2010( 1) : 5 - 7．
[14] 聂莉莉，张越，刘仲齐． 盐胁迫对柳树幼苗生长及 生理特性的影响[J]． 天津农业科学，2010，16 ( 3) : 20 - 23．
[15] 黄亚杰，杜永臣，侯喜林，等． 盐胁迫与非胁迫条件下 控制番茄苗期重要植物学性状的QTL 对比研究[J]． 华北农学报， 2011， 26( 5) : 58 - 65．
[16] Ames R M，Reid C P P，PoRteR L K． Hyphal uptake and tRanspoRt of nitRogen fRom two 15N labeled souRce by Glomus mosseae a vesiculaR-aRbusculaR fungus[J]． New Phytol， 1983， 95: 381 - 396．
[17] GRattan S R，GRieve M． MineRal element acquisition and gRowth Response of plants gRowth in saline enviRonments
[J]． AgRicultuRe Ecosystem and EnviRonment， 1992， 38: 275 - 300．
[18] GeoRge E，HaussleR K U，VetteRlein D， et al． WateR and nutRient tRanslocation by hyphae of Glomus mosseae[J]． Can J Bot， 1992， 70: 2130 - 2137．
[19] Pinochet，FeRnandez C， Jaizme M D， et al． MicRopRopagated banana infected with Meloidogyne javanica Responds to Glomus intRaRadices and phosphoRus[J]． HoRtscience， 1997， 32: 101 - 103．
[20] Al-kaRaki G N． GRowth of mycoRRhizal tomato and mineRal acquisition undeR salt stRess[J]． MycoRRhiza，2000，10 ( 2) : 51 - 54．
