Muratova A Iu, Turkovskaia O V, Hubner T, Kuschk P
Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, 410049 Russia.
Prikl Biokhim Mikrobiol. 2003 Nov-Dec;39(6):681-8.
The efficacy of plants as means of decontaminating hydrocarbon-polluted soil has been studied. Ditch reed (Phragmites australis) and alfalfa (Medicago sativa) markedly intensified processes of pollutant destruction, the effect being particularly pronounced in the case of polycyclic aromatic hydrocarbons (PAHs). Comparative analysis of microflora in soils (including those devoid of plants and rhizosphere) demonstrated that, in addition to preventing the pollutant-induced decrease in the amount of heterotrophic microorganisms, the plants stimulated their development, significantly increasing the population of destructors. Effects of plants on major physiological groups of soil microorganisms under conditions of pollution were ambiguous. The rhizosphere consortium of alfalfa was less susceptible to effects of pollutants than that of reed.
植物作为净化碳氢化合物污染土壤手段的功效已得到研究。沟渠芦苇（芦苇）和苜蓿（紫花苜蓿）显著强化了污染物的分解过程，在多环芳烃（PAHs）的情况下效果尤为明显。对土壤（包括无植物土壤和根际土壤）中微生物群落的比较分析表明，这些植物除了能防止污染物导致异养微生物数量减少外，还能刺激其生长，显著增加分解者的数量。在污染条件下，植物对土壤微生物主要生理类群的影响并不明确。苜蓿的根际菌群比芦苇的根际菌群对污染物的影响更不敏感。
