Résumé
We report the draft genome sequence of Burkholderia sp. PML1(12), a soil bacterium isolated from the Oak-Scleroderma citrinum ectomycorrhizosphere in the experimental forest site of Breuil-Chenue (France).
Auteurs, date et publication :
Auteurs Stéphane Uroz , Phil Oger
Publication : Genome Announc.
Date : 2015
Volume : 3
Issue : 4
Pages : e00798-15
Catégorie(s)
#FORET Breuil #INRAERésumé
Sediment flushings of hydropower reservoirs are commonly performed to maintain water resource uses and ecosystem services, but may have strong impacts on fish communities. Despite the worldwide scope of this issue, very few studies report quantitative in situ evaluations of these impacts. In June 2012, the drawdown flushing of the Verbois reservoir (Rho^ne River) was performed and subsequent impacts on the fish community were assessed, both inside the reservoir (fish densities by hydroacoustic surveys) and downstream (short-term movement and survival of radio tracked adult fish). Results showed that after the flushing fish acoustic density decreased by 57% in the reservoir, and no recolonization process was observed over the following 16 months. Downstream of the dam, the global apparent survival of fish to the flushing was estimated at 74%, but differed between species. The nine-year delay from the previous flushing and thus the amount of sediments to remove were too stressful for the low-resilience fish community of the Rho^ne River. Alternative flushing schedules are discussed to reduce these impacts.
Auteurs, date et publication :
Auteurs David Grimardias , Jean Guillard , Franck Cattanéo
Publication : Journal of Environmental Management
Date : 2025
Volume : 197
Pages : 239-249
Catégorie(s)
#INRAE #OLAAuteurs, date et publication :
Auteurs Muhammad Sanaullah , Evgenia Blagodatskaya , Abad Chabbi , Cornelia Rumpel , Yakov Kuzyakov
Publication : Applied Soil Ecology
Date : 2025
Volume : 48
Issue : 1
Pages : 38–44
Catégorie(s)
#ACBB #ACBB Lusignan #INRAEAuteurs, date et publication :
Auteurs C. Pichot , C. Callou , A. Chanzy , A. Maire , A. Schellenberger
Date : 2015
Pages : 1p
Catégorie(s)
#Ecoinfo #INRAERésumé
This study tested the possible root biomass improvements in crop rotations after the conversion of grasslands, and crop samples from maize, winter wheat, and winter barley were collected during 2011–2013 from a long-term experimental site in Lusignan, France (http://www.soere-acbb). Root biomass C quantification was performed using δ13C isotopic signatures to determine the presence of both C3 and C4 plants. We also calculated the recovery rate of maize root biomass C. The results showed that after crop rotations, 0–60 cm root biomass C values were 44.1, 34.2, and 18.7 g C m−2 for maize, winter wheat, and winter barley respectively. The Root biomass C of crops after conversion to grassland was approximately 2–3 times those observed after crop rotations. However, incorporating ley grassland duration into crop rotations showed limited improvements in shoot biomass C and grain yield of the crops, regardless of the decreased rate of N fertilizer for maize. Moreover, root biomass C had a significant relationship with N supply from residues (P < .05). Nevertheless, shoot biomass C of only maize showed significance in its relationships with N supply and root biomass C. In addition, in each 30 cm soil layer (0–30 cm, 30–60 cm, and 60–90 cm), the recovery rate of maize roots decreased to approximately 15% when root biomass C increased to 10 g C m−2. However, further increases in root biomass C had little impact on the recovery rate. In conclusion, compared with continuous cropland, incorporating ley grassland duration into crop rotations increases root biomass C of crops, but this change may not be a significant increase of the shoot biomass C or grain yield. This finding simply indicates the improved C input from crops and the potential to increase soil organic C, as well as providing a model for the sustainability of crop rotations.
Auteurs, date et publication :
Auteurs Teng Hu , Abad Chabbi
Publication : Science of The Total Environment
Date : 2021
Volume : 752
Pages : 141684
Catégorie(s)
#ACBB #ACBB Lusignan #ANR-Citation #INRAERésumé
In France, the Arctic charr (Salvelinus alpinus) is native in only two lakes (Lakes Bourget and Geneva), in the most southerly part of its distribution area. It is a profundal morph living at depths of between 30 and 100 m in Lake Geneva. Following considerable stocking of Lake Geneva with juvenile Arctic charr and some good results during the 1980s, catches are currently declining. Several hypotheses have been proposed to explain this decrease, but the potential influence of warming of the lake in the 1990s has not been considered. This article studies the relationship between the strength of the cohorts and the temperature in Lake Geneva from 1992 to 2002, and discusses the various potential causes of the population collapse observed. The findings reveal close correlation between water temperature and the strength of the cohorts. It is concluded that the recent warming of Lake Geneva may have a significant direct or indirect impact on the Arctic charr population.
Auteurs, date et publication :
Auteurs Daniel Gerdeaux
Publication : Hydrobiologia
Date : 2025
Volume : 660
Issue : 1
Pages : 69-78
Catégorie(s)
#INRAE #OLARésumé
Implementation of ley grassland into crop rotation could have positive influence in soil ecosystem services such as C storage. The periodical changes of land-use plus the in situ labelling given by the introduction of maize crops under ley grassland induce differences in soil organic matter (SOM) that could be traced either by stable isotopes or by the characterization of plant biomarkers such as lignin derived phenols. Evaluation of SOM dynamics is often limited by the complexity of soil matrix. To override these limitations, a hierarchical approach to decompose the soil mosaic into aggregates has been proposed in this study. Soil and plant samples were collected from a long-term experimental area in Lusignan (western France). Soils from four different treatments (bare fallow, permanent maize, permanent grassland, and ley grassland based on 6 years of grassland followed by 3 years of maize) were sampled, fractionated into water stable aggregates, and finally analysed for carbon, nitrogen, and lignin contents, as well as for 13C isotopic signature.
Auteurs, date et publication :
Auteurs M. Panettieri , C. Rumpel , M.-F. Dignac , A. Chabbi
Publication : Science of The Total Environment
Date : 2025
Volume : 576
Pages : 251-263
Catégorie(s)
#ACBB #ACBB Lusignan #INRAEAuteurs, date et publication :
Auteurs Isabelle Domaizon , Amanda Winegardner , Eric Capo , Joanna Gauthier , Irene Gregory-Eaves
Publication : Journal of Paleolimnology
Date : 2025
Volume : 58
Issue : 1
Pages : 1-21
Catégorie(s)
#INRAE #OLAAuteurs, date et publication :
Auteurs A. Grosjean , Nicolas Marro , Pierrick Priault
Date : 2025
Catégorie(s)
#⛔ No DOI found #FORET AgroTCR #INRAEAuteurs, date et publication :
Auteurs D. Epron , Laclau JP , Almeida JCR , Gonçalves JLM , Ponton S , Sette Jr CR , Delgado-Rojas JS , Bouillet JP , Y. Nouvellon
Publication : Tree Physiology Advance Access
Date : 2025
Volume : 31
Pages : 1-13