福建农业学报
福建農業學報
복건농업학보
FUJIAN JOURNAL OF AGRICULTURAL SCIENCES
2013年
8期
789-795
,共7页
阮传清%陈建利%刘波%苏明星%余智城
阮傳清%陳建利%劉波%囌明星%餘智城
원전청%진건리%류파%소명성%여지성
台湾软枝杨桃%土壤微生物%磷脂脂肪酸分析(PLFAs)
檯灣軟枝楊桃%土壤微生物%燐脂脂肪痠分析(PLFAs)
태만연지양도%토양미생물%린지지방산분석(PLFAs)
Averrhoa carambola Linn.cv. Taiwan soft-branch carambola%soil microbial community%phospholipids fatty acids biomarkers
采用平板培养和磷脂脂肪酸(PLFAs)分析方法,研究20年树龄的台湾软枝杨桃根际与非根际土壤微生物群落差异,及其与土壤理化性质的相关性。结果表明,杨桃根际土壤可培养真菌、放线菌、放线菌特征脂肪酸10Me17∶0含量较同层次的非根际土壤多,土壤上层的可培养微生物及微生物特征脂肪酸16∶0(细菌)、18∶1ω9c (真菌)和10Me17∶0(放线菌)均比下层土壤的含量高。微生物 PLFAs 与土壤有机质含量呈显著或极显著相关的有23种,包括16∶0、18∶1ω9c 和10Me17∶0;与土壤总氮、总磷、总钾相关的有18~20种;与pH 值和含水量相关的 PLFAs 种类较少。
採用平闆培養和燐脂脂肪痠(PLFAs)分析方法,研究20年樹齡的檯灣軟枝楊桃根際與非根際土壤微生物群落差異,及其與土壤理化性質的相關性。結果錶明,楊桃根際土壤可培養真菌、放線菌、放線菌特徵脂肪痠10Me17∶0含量較同層次的非根際土壤多,土壤上層的可培養微生物及微生物特徵脂肪痠16∶0(細菌)、18∶1ω9c (真菌)和10Me17∶0(放線菌)均比下層土壤的含量高。微生物 PLFAs 與土壤有機質含量呈顯著或極顯著相關的有23種,包括16∶0、18∶1ω9c 和10Me17∶0;與土壤總氮、總燐、總鉀相關的有18~20種;與pH 值和含水量相關的 PLFAs 種類較少。
채용평판배양화린지지방산(PLFAs)분석방법,연구20년수령적태만연지양도근제여비근제토양미생물군락차이,급기여토양이화성질적상관성。결과표명,양도근제토양가배양진균、방선균、방선균특정지방산10Me17∶0함량교동층차적비근제토양다,토양상층적가배양미생물급미생물특정지방산16∶0(세균)、18∶1ω9c (진균)화10Me17∶0(방선균)균비하층토양적함량고。미생물 PLFAs 여토양유궤질함량정현저혹겁현저상관적유23충,포괄16∶0、18∶1ω9c 화10Me17∶0;여토양총담、총린、총갑상관적유18~20충;여pH 치화함수량상관적 PLFAs 충류교소。
Microbial communities in the soil of the rhizosphere and non-rhizosphere of Averrhoa carambola Linn cv . Taiwan soft-branch carambola were compared by microorganism-culturing and the application of the phospholipids fatty acids biomarkers (PLFAs) .Correlation and soil chemistry were also studied . Significantly more cultural fungi and actinomycetes as well as PLFA 10Me17 ∶ 0 related to actinomycetes were found in the rhizospheric than in the non-rhizosphere soil of a same layer . The quantities of PLFAs 16 ∶ 0 related to bacteria ,18 ∶ 1ω9c related to fungi and 10Me17 ∶ 0 related to actinomycetes were significantly higher in the upper- than in deep-layer of the soil . The quantities of organic matters significantly correlated with the 23 PLFAs biomarkers ,including 16 ∶ 0 ,18 ∶ 1ω9c and 10Me17 ∶ 0. Total nitrogen ,potassium and phosphorus significantly correlated with the 18 - 20 PLFAs biomarkers . Only a few PLFAs biomarkers showed significant correlation to the soil pH or water content of the soils .