Instead of pure bacteria, induction mutation of activated sludge by ultraviolet (Uv) was studied and used to treat pulping wastewater by continuous- flow. The result showed the mutagenic activated sludge had remarkabl...Instead of pure bacteria, induction mutation of activated sludge by ultraviolet (Uv) was studied and used to treat pulping wastewater by continuous- flow. The result showed the mutagenic activated sludge had remarkable effect and application potential in pulping wastewater treatment. Comparing with common activated sludge, the mutagenic activated sludge was more suitable for lignose decomposition and had high decomposing efficiency.展开更多
为了从茶园根际筛选具有产吲哚乙酸(IAA)能力的解磷菌,从湖北省英山县和恩施土家族苗族自治州茶园采集根际土壤,通过平板透明圈法筛选解磷菌,以解磷活性及产IAA能力为指标进行复筛,通过形态特征及16 S rDNA序列分析等方法对菌株进行鉴...为了从茶园根际筛选具有产吲哚乙酸(IAA)能力的解磷菌,从湖北省英山县和恩施土家族苗族自治州茶园采集根际土壤,通过平板透明圈法筛选解磷菌,以解磷活性及产IAA能力为指标进行复筛,通过形态特征及16 S rDNA序列分析等方法对菌株进行鉴定并研究其促生特性。通过大田试验研究菌株对茶叶产量、品质及土壤性质等指标的影响。结果表明,从茶树根际土壤中筛选出的解磷菌DFP-24具有较好的产IAA能力,经鉴定为森林伯克霍尔德氏菌(Burkholderia arboris),同时菌株具有产铁载体、产1-氨基环丙烷-1-羧酸(ACC)脱氨酶和固氮等促生特性。大田试验表明,施加DFP-24菌株可提高茶芽密度,显著提高茶叶全磷含量,增加茶叶游离氨基酸含量,降低酚氨比,影响茶叶品质,同时还能改善土壤性质。综上所述,菌株DFP-24具有开发微生物菌肥的应用潜力,研究结果可为茶树专用根际促生菌肥的开发和应用提供菌种资源和理论依据。展开更多
文摘Instead of pure bacteria, induction mutation of activated sludge by ultraviolet (Uv) was studied and used to treat pulping wastewater by continuous- flow. The result showed the mutagenic activated sludge had remarkable effect and application potential in pulping wastewater treatment. Comparing with common activated sludge, the mutagenic activated sludge was more suitable for lignose decomposition and had high decomposing efficiency.
文摘为了从茶园根际筛选具有产吲哚乙酸(IAA)能力的解磷菌,从湖北省英山县和恩施土家族苗族自治州茶园采集根际土壤,通过平板透明圈法筛选解磷菌,以解磷活性及产IAA能力为指标进行复筛,通过形态特征及16 S rDNA序列分析等方法对菌株进行鉴定并研究其促生特性。通过大田试验研究菌株对茶叶产量、品质及土壤性质等指标的影响。结果表明,从茶树根际土壤中筛选出的解磷菌DFP-24具有较好的产IAA能力,经鉴定为森林伯克霍尔德氏菌(Burkholderia arboris),同时菌株具有产铁载体、产1-氨基环丙烷-1-羧酸(ACC)脱氨酶和固氮等促生特性。大田试验表明,施加DFP-24菌株可提高茶芽密度,显著提高茶叶全磷含量,增加茶叶游离氨基酸含量,降低酚氨比,影响茶叶品质,同时还能改善土壤性质。综上所述,菌株DFP-24具有开发微生物菌肥的应用潜力,研究结果可为茶树专用根际促生菌肥的开发和应用提供菌种资源和理论依据。
