多噬伯克霍尔德氏菌 WS-FJ9对杨树养分代谢及根系活力的影响

摘要

为研究高效解磷细菌多噬伯克霍尔德氏菌（ Burkholderia multivorans） WS-FJ9对杨树的促生机制，探讨了接种WS-FJ9菌株对NL-895杨磷素代谢、氮素代谢、可溶性蛋白含量及根系活力的影响，从养分代谢和根系活力的角度阐明WS-FJ9菌株对杨树的促生机制。结果表明，接种WS-FJ9处理能显著提高NL-895杨磷素含量、增加硝态氮和可溶性蛋白的含量，增强硝酸还原酶活性和根系活力，从而促进了杨树的生长。%The aim of this research was to study the growth-promoting effects of Burkholderia multivorans WS-FJ9 on poplar.To this end,the effects of inoculating strain WS-FJ9 on phosphorus metabolism ,nitrogen metabolism,contents of soluble protein and root activity of poplar were investigated .The growth-promoting mechanism of strain WS-FJ9 on poplars was illuminated from the perspective of nutrient metabolism and root activity.The results showed that inoculating strain WS-FJ9 could significantly improve the contents of phos-phorus ,nitrate nitrogen and soluble protein ,and enhance nitrate reductase activity and root activity of NL-895 poplar,thus the growth and development of poplar were promoted .