Lin Xin, Li Pei-Jun, Sun Tie-Heng, Li Xiao-Jun, Sun Li-Na
Key Laboratory of Environmental Engineering, Shenyang University, Shenyang 110044, China.
Ying Yong Sheng Tai Xue Bao. 2007 Mar;18(3):607-12.
With the petroleum-contaminated soil under Ricinus communis L. phytoremediation in Shenfu irrigation area of Shenyang as test material, this paper studied the quantitative variations of bacteria and fungi, physiological and biochemical characteristics of dominant microbial species, and nutritional types of bacteria in root zone, rhizosphere, root plane and root inside. The results showed that the quantity of bacteria decreased in the order of rhizosphere > root plane > root inside, while that of fungi was in the sequence of root inside > root plane > rhizosphere. The dominant species of bacteria and fungi were most abundant in root plane and root inside, respectively, and the dominant bacterial species in root plane and root inside had a stronger capability in degrading macro-molecular substances. The nutritional demand of bacteria in root plane was of amino acid type.
以沈阳沈抚灌区蓖麻修复石油污染土壤为试验材料，研究了根区、根际、根表和根内细菌和真菌的数量变化、优势微生物种类的生理生化特性以及细菌的营养类型。结果表明，细菌数量依次为根际＞根表＞根内，而真菌数量依次为根内＞根表＞根际。细菌和真菌的优势种分别在根表和根内最为丰富，根表和根内的优势细菌种类降解大分子物质的能力较强。根表细菌的营养需求为氨基酸型。
