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Effects of Different pH on Growth and Ergot Alkaloids Concentrations of Symbiont of Epichlo gansuensis Achnatherum inebrians Seedling

不同pH对醉马草内生真菌共生体幼苗生长和产碱的影响



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,2016,36(4):0715-0720
犃犮狋犪犅狅狋.犅狅狉犲犪犾.犗犮犮犻犱犲狀狋.犛犻狀.
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  PQRS:TUV,WB,0X,CDFGHIJKELMNEOYJZ#$[\%。Email:chunjie@lzu.edu.cn
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犈犳犳犲犮狋狊狅犳犇犻犳犳犲狉犲狀狋狆犎狅狀犌狉狅狑狋犺犪狀犱犈狉犵狅狋犃犾犽犪犾狅犻犱狊犆狅狀犮犲狀狋狉犪狋犻狅狀狊狅犳
犛狔犿犫犻狅狀狋狅犳犈狆犻犮犺犾狅犵犪狀狊狌犲狀狊犻狊犃犮犺狀犪狋犺犲狉狌犿犻狀犲犫狉犻犪狀狊犛犲犲犱犾犻狀犵
WANZhiwen,FENGJiangrong,CHENZhenjiang,CAOYing,LIChunjie
(KeyLaboratoryofGrasslandFarmingSystems,ColegeofPastoralAgricultureScienceandTechnology,LanzhouUniversity,
Lanzhou730020,China)
犃犫狊狋狉犪犮狋:AstudywasconductedtoinvestigatetheeffectsofdifferentpH(3,5,7,9,11)onvariationsof
growthandergotalkaloidsconcentrationsinsymbiontof犈狆犻犮犺犾狅犵犪狀狊狌犲狀狊犻狊犃犮犺狀犪狋犺犲狉狌犿犻狀犲犫狉犻犪狀狊seed
ling.Theresultsshowedthat:1)theplantheight,rootlengthandbiomassof犃.犻狀犲犫狉犻犪狀狊hadpeakvalue
underpH7,andhadsignificantdifferences(犘<0.05)thantheotherfourpHtreatments,andthefour
kindsofgrowthindexunderstrongalkalinetreatmentweresignificantly(犘<0.05)higherthanthatunder
acidtreatment.2)ChlorophylcontenthadmaximumunderpH7,whichhadsignificant(犘<0.05)differ
enceshigherthanthatofpH=3,5andpH11,andunderstrongalkalinetreatmentweresignificantly(犘<
0.05)morethanacidtreatment.SolublesugarunderfivepHtreatmentsdifferencewasnotsignificant
(犘>0.05).3)ThecontentsofergineunderpH9-11hadapeakvalueat15d,whichhadsignificant(犘<
0.05)differencewithothertreatments.ThecontentsofergonovineunderpH11hadmaximumat15d,
whichweresignificantly(犘<0.05)enhancedbyincreasingpH.Tosumup,Symbioticseedlingsgrowbest
underneutralconditionsandunderalkalineconditionsgrowwelmorethanthatunderacidicconditions.However,
theaccumulationofergineandergonovinehadpeakvaluesunderstrongalkalineconditions.Comprehensivegrowth
andergotalklioldproduction,thesymbiontscanbeusedinthecultivationofsalinealkalilandgreening.
犓犲狔狑狅狉犱狊:犃犮犺狀犪狋犺犲狉狌犿犻狀犲犫狉犻犪狀狊;endophyte;ergine;ergonovine;pH
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Table1 Theplantheight,rootlength,tileramountand
biomassof犃犮犺狀犪狋犺犲狉狌犿犻狀犲犫狉犻犪狀狊seedlingsunder
differentpHtreatment
pH
š›
Plantheight
/cm
œ‘
Rootlength
/cm
ۚžÚ
Tileramount
perplant
ۚE$Œ
Biomass
perplant/g
3 32.87±0.39d 19.19±0.11c 3.05±0.05d 0.16±0.01d
5 36.59±0.18b 21.90±0.22b 3.70±0.12b 0.27±0.01b
7 38.65±0.81a 23.12±0.33a 4.20±0.12a 0.30±0.01a
9 37.15±0.10b 21.46±0.16b 3.30±0.12cd 0.21±0.01c
11 35.14±0.57c 20.02±0.71c 3.40±0.10bc 0.20±0.01c
  m:™°ÚŠH{ ¼±}9n(n=5);roqrpq™òt\³?
0.05b{r?¤¥ƒja(犘<0.05);®r。
Note:Dataarepresentasmean±SE(n=5);Thedifferentnormalletters
withinthesamecolumnmeansignificantdifferenceatthe0.05level;Thesame
asbelow.
w2 45狆犎]^x789@AghiC
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Table2 Thecontentsofchlorophylandsolublesugarin
犃.犻狀犲犫狉犻犪狀狊seedlingsunderdifferentpHtreatment
pH
~€
Chlorophyl
/(mg·g-1)
‚ƒ„
Solublesugar
/(mg·g-1)
3 2.12±0.22d 0.02±0.001a
5 3.25±0.09b 0.02±0.001a
7 3.82±0.06a 0.02±0.001a
9 3.39±0.05ab 0.03±0.001a
11 2.71±0.28c 0.02±0.001a
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Table3 Theergineandergnovinecontentsin犃犮犺狀犪狋犺犲狉狌犿犻狀犲犫狉犻犪狀狊seedlingsunderdifferentpHtreatment
†‡E$Š
Ergotalkaloids
pH
t\¡³ Treatmenttime/d
3 6 9 12 15
†‡ˆ‰‹Œ
Erginecontent
/(mg·kg-1)
3 14.83±0.27cD 19.84±0.44cB 28.84±0.84cA 16.85±1.01dC 7.76±0.19dE
5 15.50±0.27cD 23.83±.050bBC 36.21±0.38bA 26.09±0.91cB 23.16±1.62cC
7 16.09±0.51bcE 24.14±0.36bD 38.30±0.58abC 54.22±1.75bB 62.84±2.40bA
9 17.14±0.57bD 26.05±0.77bC 38.60±0.75abB 61.53±2.78aA 68.54±5.81abA
11 19.89±0.53aE 29.69±1.33aD 40.64±1.17aC 64.57±2.93aB 73.46±2.03aA
†‡4Š‹Œ
Ergnovinecontent
/(mg·kg-1)
3 16.69±0.41cC 21.58±0.51dC 67.32±3.00cB 79.31±3.93dA 70.97±2.40dB
5 18.45±0.47cC 26.39±1.51cdC 89.72±4.04bA 93.63±3.36cA 71.49±2.60dB
7 20.86±0.65bE 32.50±0.54cD 96.11±3.72bC 113.11±4.63bB 172.96±3.67cA
9 22.59±0.68bD 44.85±3.13bC 122.14±2.19aB 129.37±3.46aB 205.40±3.26bA
11 29.67±0.84aD 57.66±3.68aC 129.92±4.07aB 140.09±3.35aB 233.29±8.66aA
  m:™°ÚŠH{ ¼±}9n(n=5),ro°zqrstpq™òrït\³ja¤¥(犘<0.05),«rÙqr_tpq™òt\¡³
²³ja¤¥
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mentsatthe0.05level,whiledifferentcapitalletterswithinthesamerowmeansignificantdifferenceamongstagesatthe0.05level.
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