Anza M, Epelde L, Artetxe U, Becerril J M, Garbisu C
NEIKER-Tecnalia, Basque Institute of Agricultural Research and Development, Department of Conservation of Natural Resources, Soil Microbial Ecology Group, c/ Berreaga 1, E-48160, Derio, Spain.
Department of Plant Biology and Ecology, University of the Basque Country, UPV/EHU, P. O. Box 644, E-48080, Bilbao, Spain.
Environ Monit Assess. 2016 Nov;188(11):631. doi: 10.1007/s10661-016-5649-9. Epub 2016 Oct 21.
In the north of Spain, Cortaderia selloana plants have invaded ecosystems of high ecological value. Control of this species is carried out with the application of glyphosate-based formulations. The aim of this work was to determine, under microcosm conditions, the short-term (2 months) effects of the application of a glyphosate-based herbicide (Roundup®) on C. selloana rhizosphere microbial communities. To this purpose, before and after the application of Roundup®, several parameters that provide information on the biomass, activity and diversity of rhizosphere fungal and bacterial communities (enzyme activities, basal and substrate-induced respiration, potentially mineralizable nitrogen, nitrification potential rate, ergosterol content and community-level profiles with Biolog™ plates and ARISA) were determined. We observed a stimulation of some microbial parameters, in particular those related to fungal communities. Further research is needed to determine the long-term consequences of this short-term fungal stimulation for soil functioning.
在西班牙北部，蒲苇植物已经侵入了具有高生态价值的生态系统。对该物种的控制是通过施用基于草甘膦的制剂来进行的。这项工作的目的是在微观条件下确定施用一种基于草甘膦的除草剂（农达®）对蒲苇根际微生物群落的短期（2个月）影响。为此，在施用农达®之前和之后，测定了几个能提供根际真菌和细菌群落生物量、活性和多样性信息的参数（酶活性、基础呼吸和底物诱导呼吸、潜在可矿化氮、硝化潜力速率、麦角固醇含量以及使用Biolog™平板和ARISA的群落水平谱）。我们观察到一些微生物参数受到刺激，特别是那些与真菌群落相关的参数。需要进一步研究来确定这种短期真菌刺激对土壤功能的长期影响。
