Vortragsreihe Ökologie und Umweltforschung SS 2013

Donnerstag 12:00-13:30 H 12, NW I

Falls Sie gerne per E-Mail benachrichtigt werden, können Sie sich an unserer Mailingliste anmelden.


Dr. Laurent Philippot
Director of Research, INRA - French National Institute for Agricultural Research, Dijon, France (Homepage)
Donnerstag, 25.04.2013 :

Bridging microbial community ecology and ecosystem functioning: examplewith a N-cycling microbial guild

 

Microbial communities have a central role in many ecosystem functions such as biogeochemical cycling, filtering and climate regulation. This talk will highlight how trait-based approaches can help understanding the role of microbial diversity in ecosystem functioning.

For this purpose, denitrification, a microbial process involved in N-cycling, was selected as a model functional trait. Denitrification is a microbial respiratory process during which soluble nitrogen oxides are used as alternative electron acceptor when oxygen is limiting. It is involved in ecosystem services such as filtering but also disservices. Thus, denitrification can results in considerable losses of nitrogen, which is the most limiting nutrient for crop production in agriculture. It is also responsible for emissions of nitrous oxide, one of the six greenhouse gases considered by the Kyoto protocol.

In addition to natural variations, agroecosystems are characterized by the use of numerous practices, such as fertilization and tillage, which influence N-fluxes by denitrification. This has been widely documented in the literature, mirroring the complexity of the underlying mechanisms regulating this process. However, in the last decade application of molecular biology approaches has given the opportunity to look beyond denitrification rates and study the ecology of the microorganisms involved in this process, the denitrifying community.

Examples will be provided on how this microbial guild can be used a model for bridging microbial community ecology, microbial processes and ecosystem functioning.

 



Weitere Informationen:Export as iCal: Export iCal
zurück zur Liste
Aktuelle Termine


Bayreuther Stadtgespräch(e):
Mi. 04.03.2020
Das Kunststoffzeitalter: Unsachliche Berichterstattungen zum Thema Mikroplastik verunsichern Verbraucher. Was Forscher wirklich (nicht) wissen und zukunftsweisende Lösungsansätze.
Ökologisch-Botanischer Garten:
So. 01.03.2020
Moore, Wälder & Co.: Ihre Leistungen für Natur und Mensch
So. 08.03.2020
"Einzig-ART-ige Natur": Malerei von Steffi Rodigas, Vernissage - Ausstellungseröffnung
So. 05.04.2020
3x3=0: Wildkräuter für die Gründonnerstagssuppe
Universitäts-Forum Bayreuth:
Mi. 11.03.2020
Bedrohte Vielfalt: Hintergründiges zum Artensterben
BayCEER Blog
13.01.2020
Why Science Communication?
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
07.05.2019
EGU – interesting research and free coffee
RSS Blog als RSS Feed
Wetter Versuchsflächen
Luftdruck (356m): 954.8 hPa
Lufttemperatur: 6.5 °C
Niederschlag: 2.1 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 11.6 km/h
Wind (Max.): 24.5 km/h
Windrichtung: SO

...mehr
Globalstrahlung: 158 W/m²
Lufttemperatur: 3.6 °C
Niederschlag: 10.7 mm/24h
Sonnenschein: 2 h/d
Wind (Höhe 32m): 17.8 km/h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen