| Title: | [Effects of allelopathic rice on rhizosphere microbial flora and enzyme activity] |
| Author(s): | Hu K; Luo Q; Wang S; Lin X; Lin W; |
| Address: | "School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Hukh62@sohu.com" |
| Journal Title: | Ying Yong Sheng Tai Xue Bao |
| ISSN/ISBN: | 1001-9332 (Print) 1001-9332 (Linking) |
| Abstract: | "This paper studied the dynamics of microbial flora and enzyme activity in the rhizosphere of allelopathic rice PI312777 (PI) and non-allelopathic rice Lemont (LE) at the growth stage of 3 - 7 leaves. The results showed that in the rhizosphere of PI, the amounts of bacteria, actinomycetes and azotobacter were 11.2% - 28.3%, 40% - 78.6% and 111.5% - 173.9%, respectively, while that of fungi was lower, with the maximum being 25.5% of that in the rhizosphere of LE, suggesting that allelopathic rice PI promoted the growth of bacteria, actinomycetes and azotobacter, but inhibited that of fungi. Further analysis on the physiological groups of microbial flora showed that PI favored the growth of ammonifier, aerobic azotobacter, aerobic cellulose - decomposer, sulphate - reducer, nitrite - bacteria and nitrate - bacteria, among which, ammonifier and aerobic azotobacter increased by 53.7% and 57.6%, respectively, while inhibited the growth of desulphate bacteria and denitrifyier. Moreover, PI increased the activities of urease, phosphatase and sucrase, but decreased the catalase activity in its rhizosphere" |
| Keywords: | Actinobacteria/growth & development Azotobacter/growth & development Bacteria/*growth & development Catalase/metabolism Oryza/*growth & development/metabolism/microbiology Pheromones/*pharmacology Plant Roots/enzymology/*microbiology Soil/*analysis Soil M; |
| Notes: | "MedlineHu, Kaihui Luo, Qingguo Wang, Shihua Lin, Xuan Lin, Wenxiong chi Research Support, Non-U.S. Gov't China 2006/09/13 Ying Yong Sheng Tai Xue Bao. 2006 Jun; 17(6):1060-4" |
