贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
3期
88-93
,共6页
王芳%沙桦欣%马焕成%高瑾%张东华%伍建榕
王芳%沙樺訢%馬煥成%高瑾%張東華%伍建榕
왕방%사화흔%마환성%고근%장동화%오건용
干热河谷%台湾相思%根瘤菌%抗逆性%云南
榦熱河穀%檯灣相思%根瘤菌%抗逆性%雲南
간열하곡%태만상사%근류균%항역성%운남
hot-dry valley%Acacia confusa%rhizobia%stress resistance%Yunnan
为探明云南干热河谷台湾相思树根瘤菌的抗逆性,筛选优良的根瘤菌菌株,对分离自云南干热河谷台湾相思的32株根瘤菌进行了耐盐、耐高温和耐干旱的抗逆性试验。结果表明:在供试的32株根瘤菌中,对干旱适应性较强的菌株占21.9%,多数菌株对高温具有较强的耐受性,31.25%的菌株可以在45℃的高温下生长,表现出极强的抗热性;有78.13%的菌株可在0.5%的盐浓度下生长,具有一定的耐盐性,其中有31.25%的菌株耐盐浓度可达2%、3%甚至5%。SWF-01、SWF-02、SWF-06和 SWF-19为抗干旱、抗高温和抗盐性能均较强的优良菌株。
為探明雲南榦熱河穀檯灣相思樹根瘤菌的抗逆性,篩選優良的根瘤菌菌株,對分離自雲南榦熱河穀檯灣相思的32株根瘤菌進行瞭耐鹽、耐高溫和耐榦旱的抗逆性試驗。結果錶明:在供試的32株根瘤菌中,對榦旱適應性較彊的菌株佔21.9%,多數菌株對高溫具有較彊的耐受性,31.25%的菌株可以在45℃的高溫下生長,錶現齣極彊的抗熱性;有78.13%的菌株可在0.5%的鹽濃度下生長,具有一定的耐鹽性,其中有31.25%的菌株耐鹽濃度可達2%、3%甚至5%。SWF-01、SWF-02、SWF-06和 SWF-19為抗榦旱、抗高溫和抗鹽性能均較彊的優良菌株。
위탐명운남간열하곡태만상사수근류균적항역성,사선우량적근류균균주,대분리자운남간열하곡태만상사적32주근류균진행료내염、내고온화내간한적항역성시험。결과표명:재공시적32주근류균중,대간한괄응성교강적균주점21.9%,다수균주대고온구유교강적내수성,31.25%적균주가이재45℃적고온하생장,표현출겁강적항열성;유78.13%적균주가재0.5%적염농도하생장,구유일정적내염성,기중유31.25%적균주내염농도가체2%、3%심지5%。SWF-01、SWF-02、SWF-06화 SWF-19위항간한、항고온화항염성능균교강적우량균주。
In order to explore the stress resistance of rhizobia isolated from A.confusa in hot-dry valley of Yunnan,screen the fine rhizobia strains,32 rhizobia strains isolated from A.confuse grown in hot-dry valley of Yunnan were tested on their tolerance to NaCl,temperature and drought variation.The results indicated that the strains that strongly adapted to drought accounted for 21.9%.Most of the strains were of strong tolerance to high temperature,31.25% strains could grow at high temperature of 45℃.78.13% strains could grow in 1% concentration of NaCl,and 31.25% strains tolerated NaCl stress in 2%,3% and 5% concentration.Four strains of SWF-01,SWF-02,SWF-06 and SWF-19 showed high tolerance to drought,salt and high temperature.