Special Issue on New perspectives and approaches in plant growth-promoting rhizobacteria research : Foreword

Effets de Pseudomonas fluorescens A6RI et de Glomus mosseae BEG12 sur la croissance et le développement racinaire de la tomate

National audience

The rhizosphere of mycorrhizal plants

Providing that appropriate carbon substrates are available, microbial communities are able to develop a range of activities which are crucial in maintaining a biological balance in soil (Bowen and Rovira 1999), a key issue for the sustainability of either natural ecosystems or agroecosystems (Kennedy and Smith 1995). Soil-borne microbes have a particular microhabitat in which to flourish. In particular, they are bound to the surface of soil particles or found in soil aggregates, while others interact specifically with the plant root system (Glick 1995). The root-soil interface is actually a dynamic changing environment, a microcosm where microorganisms, plant roots and soil constituents int…

A strategy for taking soil carbon into the policy arena

Chapitre 5 Section 1 SPE EcolDur; International audience; Soil organic carbon (SOC) has a relatively low profile in the policy arena. Here, we discuss the different steps of the policy-making process as well as the actors involved at the local, national and international scale. The first part analyses the policy-making process. The policy imperative consists of building up and maintaining SOC. The policy profile and discourse focuses on raising awareness. The policy rationale includes the economic and social benefits as well as the soil as capital. The policy support concerns the tools and programmes available. The second part of the chapter deals with the actors, from the advocates and ins…