【摘要】：以"鳳丹"牡丹根際土壤為試材,采用稀釋平板法,分離根際環(huán)境中的解鉀菌,并進行活性評估及鑒定。結(jié)果表明:共分離到了4株解鉀菌(LJP3、LJP7、LJP21、LJP23),在28℃、180r·min~(-1)條件下發(fā)酵培養(yǎng)7d后,LJP21菌株的發(fā)酵液中水溶性速效鉀含量最高,達(dá)到2.6μg·mL~(-1),將其作為鑒定菌株。通過表型特征觀察、生化特性測定與16SrDNA測序的多相分析,初步將菌株LJP21歸為微小桿菌屬Exiguobacterium,暫命名為Exiguobacteriumsp.LJP21。菌株LJP21可作為菌肥或生物鉀肥開發(fā)的備用出發(fā)菌株。
[Abstract]:Using the rhizosphere soil of "Fengdan" peony as the test material, the potassium decomposing bacteria in the rhizosphere environment were isolated by dilution plate method, and the activity was evaluated and identified. The results showed that four strains of potassium-hydrolyzing bacteria (LJP3,LJP7,LJP21,LJP23) were isolated and cultured at 28 鈩，

本文編號：2524813