滇重楼根际微生物分布与甾体皂苷含量的相关性(1)
[摘要]观察了滇重楼栽培中根际土壤细菌、真菌、放线菌和3类促生细菌数量的变化规律，探讨了根际土壤微生物数量与滇重楼品质的关系。结果表明，滇重楼植物根际土壤微生物资源丰富，不同产地滇重楼根际土壤细菌、真菌、放线菌、解钾细菌、解无机磷细菌和解有机磷细菌数量具有显著性差异(P<0.05)，根际土壤微生物数量的分布规律是：细菌数量>放线菌数量>真菌数量。随着种植年限的增加，真菌与解钾细菌数量呈逐年增加，细菌、放线菌、解无机磷细菌与解有机磷细菌数量呈逐年减小的变化趋势，土壤微生物类型由“细菌型”向“真菌型”过渡。不同产地滇重楼根茎的药用品质具有生境依赖性，种植年限的增加造成滇重楼药用品质下降作用明显。由此可见，种植年限增加会引起土壤微生态区系的变化，降低了滇重楼对营养物质的吸收利用，进而造成滇重楼药用品质下降。
[关键词]滇重楼;种植年限;根际微生物;重楼皂苷;总皂苷
Correlation between distribution of rhizospheric microorganisms and
, 百拇医药
contents of steroidal saponins of Paris polyphylla var. yunnanensis
ZHOU Nong1，2， QI Wen-hua/1， XIAO Guo-sheng/1， DING Bo/1， ZHANG Hua/1， GUO Dong-qin2*， SHEN Wei/1
(1. College of Pharmacy and Chemistry， Dali University， Dali 671000， China;
2. College of Life Science & Engineering， Chongqing Three Gorges University， Chongqing 404000， China)
, 百拇医药
[Abstract]In this paper， the varying pattern of the amount of rhizospheric microorganisms， including bacteria， actinomycetes and fungus， was observed during the cultivation of Paris polyphylla var. yunnanensis. And the correlations between number of rhizospheric microorganisms and the quality of P. polyphylla var. yunnanensis were also studied. The results showed that the rhizospheric microorganism source of P. polyphylla var. yunnanensis was rich. The distribution of rhizospheric microorganisms (soil bacteria， fungus， actinomycetes， potassium-solubilizing bacteria， inorganic phosphorus-solubilizing bacteria， organic phosphorus-solubilizing bacteria) collected from different origin places existed significant difference (P<0.05). The varying pattern for the amount of rhizospheric microorganisms was showed as following： the amount of bacteria> the amount of actinomycetes> the amount of fungus. The medicinal quality of P. polyphylla var. yunnanensis was influenced by their habits， and the increase of cultivation years caused the obvious decrease of the quality of P. polyphylla var. yunnanensis. Therefore， the increase of cultivation years will cause the variation of the soil micro-ecology flora， and decrease the nutrient absorption and the utilization of P. polyphylla var. yunnanensis， which will make the decrease of the medical quality of P. polyphylla var. yunnanensis.
[Key words]Paris polyphylla var. yunnanensis; cultivation years; rhizospheric microorganisms; saponins in P. polyphylla var. yunnanensis; total content of saponins, http://www.100md.com(周浓 戚文华 肖国生 丁博 张华 郭冬琴 沈伟)
[关键词]滇重楼;种植年限;根际微生物;重楼皂苷;总皂苷
Correlation between distribution of rhizospheric microorganisms and
, 百拇医药
contents of steroidal saponins of Paris polyphylla var. yunnanensis
ZHOU Nong1，2， QI Wen-hua/1， XIAO Guo-sheng/1， DING Bo/1， ZHANG Hua/1， GUO Dong-qin2*， SHEN Wei/1
(1. College of Pharmacy and Chemistry， Dali University， Dali 671000， China;
2. College of Life Science & Engineering， Chongqing Three Gorges University， Chongqing 404000， China)
, 百拇医药
[Abstract]In this paper， the varying pattern of the amount of rhizospheric microorganisms， including bacteria， actinomycetes and fungus， was observed during the cultivation of Paris polyphylla var. yunnanensis. And the correlations between number of rhizospheric microorganisms and the quality of P. polyphylla var. yunnanensis were also studied. The results showed that the rhizospheric microorganism source of P. polyphylla var. yunnanensis was rich. The distribution of rhizospheric microorganisms (soil bacteria， fungus， actinomycetes， potassium-solubilizing bacteria， inorganic phosphorus-solubilizing bacteria， organic phosphorus-solubilizing bacteria) collected from different origin places existed significant difference (P<0.05). The varying pattern for the amount of rhizospheric microorganisms was showed as following： the amount of bacteria> the amount of actinomycetes> the amount of fungus. The medicinal quality of P. polyphylla var. yunnanensis was influenced by their habits， and the increase of cultivation years caused the obvious decrease of the quality of P. polyphylla var. yunnanensis. Therefore， the increase of cultivation years will cause the variation of the soil micro-ecology flora， and decrease the nutrient absorption and the utilization of P. polyphylla var. yunnanensis， which will make the decrease of the medical quality of P. polyphylla var. yunnanensis.
[Key words]Paris polyphylla var. yunnanensis; cultivation years; rhizospheric microorganisms; saponins in P. polyphylla var. yunnanensis; total content of saponins, http://www.100md.com(周浓 戚文华 肖国生 丁博 张华 郭冬琴 沈伟)