Studies On Soil Nitorogen Is Transformed And Relevant Bacterium's Diversity Influence Of Transgenic Soybean

The test studies soil microorganism traditional cultivation means that law combine with modern molecular biology method (DGGE), studies different genotype soybean bear stage root district soil microorganism in every, mainly include nitrogen usually change, the changes of biological chemistry action, soil enzyme activity and change of little bio-diversity of soil of transforming bacterium's quantity. Soil microbial change main research bacterium, fungi, actinomycetes, ammoniation bacterium, nitrify bacterium, nitrify bacteria and spontaneous nitrogen-fixing bacteria ,etc. instead of quantity. Transgenic soybean root district bacterium in a maximum of up toing of bearing pods quantity of soil, soil watch and is lower than the non- transgenic soybeans of receptor and cultivate soybeans by average of bacterium in whole breeding time by transgenic soybean. Actinomycetes quantity in florescence, bear pods one up to the difference prominent competence, transgenic soybeans are lower than other variety soybeans. Transgenic soybeans and the quantity of soil fungi of the non- transgenic soybeans of receptor do not have prominent difference, compare and reduce with cultivar notably.The tendency of quantity of the ammoniation bacterium in the root district of every various soybean in the whole breeding time. Every variety whole breeding time root district of soybean soil ammoniation bacterium quantity variation tendency identical,The quantity of the ammoniation bacterium in the soil of the transgenic soybeans is nearly the same as the the non-transgenic soybeans of receptor, and higher than the non-transgenic soybeans of receptor only in the issue of bearing pods and drum, but is lower than the east agricultural 42 notably and the east 46 agricultural; Transgenic soybean soil nitrify bacterium only in issue of bearing pods and drum each higher than receptor to be non- soybean more, whole growth period and receptor non-transgenic soybean have prominent difference, lower than the east agricultural 42 notably, the east 46 agricultural; The quantity of the nitrify bacterium in the soil of the transgenic soybeans is lower than cultivate soybean in the whole breeding time, but is higher than the non-transgenic soybeans of receptor.Only in bear pods issues of soil nitrify bacterium quantity higher than receptor to be non- soybean more instead transgenic soybean, with cultivate soybean compare, be reduced whole breeding time.Transgenic soybean impact on quantity of spontaneous nitrogen-fixing bacteria of soil with...