Impact of fumigation with metam sodium upon soil microbial community structure in two Japanese soils

摘要: Abstract The effects of fumigation with sodium methyl dithiocarbamate (metam sodium) on the microbial community structure and function in 2 soils were investigated using a variety techniques. In both ca. 50% 90% populations total culturable bacteria, respectively, killed by fumigation, recovery to levels prevailing control 26 d after cessation fumigation. size ammonium nitrite oxidiser was reduced up 4 orders magnitude latter showing slight 105 later. There substantial changes C-utilisation (Biolog GN) profiles fumigated even number pattern amplified 16S ribosomal DNA restriction analysis (ARDRA) fragments changed there shift %G+C profile toward greater proportion lower classes treated soils. It appeared that released from cells remained for some time maske...