Recently, Reed and Glick [34] compared the efficiency of transgenic bacteria that carry ACC deaminase with control bacteria in promoting seed germination and root elongation under stress conditions caused by copper or PAHs in contaminated soils. They reported that both native and transformed Pseudomonas asplenii AC were equally useful in the promotion of seed germination and root elongation under stress conditions caused by copper or PAH contamination. This could be because the efficiency of transgenic inoculated strains is determined by several biotic and abiotic factors such as soil pH, temperature, moisture content and their competition with native soil microflora and microfauna. Under such conditions, the use of genetically modified endophytes that exhibit ACC deaminase activity coupled with xenobiotic-degrading characteristics might yield more promising results than non-endophytes [35]. As described elsewhere, the ACC deaminase trait has also been found in some endophytes. Therefore, the selection of endophytes having both ACC deaminase and specific degradation genes could also be a useful approach for developing a successful phytoremediation strategy.
Recently, Reed and Glick [34] compared the efficiency of transgenic bacteria that carry ACC deaminase with control bacteria in promoting seed germination and root elongation under stress conditions caused by copper or PAHs in contaminated soils. They reported that both native and transformed Pseudomonas asplenii AC were equally useful in the promotion of seed germination and root elongation under stress conditions caused by copper or PAH contamination. This could be because the efficiency of transgenic inoculated strains is determined by several biotic and abiotic factors such as soil pH, temperature, moisture content and their competition with native soil microflora and microfauna. Under such conditions, the use of genetically modified endophytes that exhibit ACC deaminase activity coupled with xenobiotic-degrading characteristics might yield more promising results than non-endophytes [35]. As described elsewhere, the ACC deaminase trait has also been found in some endophytes. Therefore, the selection of endophytes having both ACC deaminase and specific degradation genes could also be a useful approach for developing a successful phytoremediation strategy.
การแปล กรุณารอสักครู่..