Concept

Auxine

Publications associées (22)

Phytochrome interacting factors 4 and 5 control seedling growth in changing light conditions by directly controlling auxin signaling

Jacques Rougemont, Ioannis Xenarios, Christian Fankhauser

Plant growth is strongly influenced by the presence of neighbors that compete for light resources. In response to vegetational shading shade-intolerant plants such as Arabidopsis display a suite of developmental responses known as the shade-avoidance syndr ...

Wiley-Blackwell2012

Evaluating Ecohydrological Theories of Woody Root Distribution in the Kalahari

Paolo d'Odorico

The contribution of savannas to global carbon storage is poorly understood, in part due to lack of knowledge of the amount of belowground biomass. In these ecosystems, the coexistence of woody and herbaceous life forms is often explained on the basis of be ...

2012

Exclusion of root competition increases competitive abilities of subordinate plant species through root-shoot interactions

Alexandre Buttler, Pierre Rémi Mariotte, Charlotte Vandenberghe, Aurélie Thébault

Questions What is the importance of root competition in the competitive abilities of dominant and subordinate species? Location Pair-wise greenhouse experiment based on field data from a semi-natural grassland community in the Swiss Jura Mountains (Col du ...

Opulus Press2012

Genome-Wide Evaluation of Histone Methylation Changes Associated with Leaf Senescence in Arabidopsis

Nishanth Ulhas Nair

Leaf senescence is the orderly dismantling of older tissue that allows recycling of nutrients to developing portions of the plant and is accompanied by major changes in gene expression. Histone modifications correlate to levels of gene expression, and this ...

Public Library of Science2012

La station de biologie marine de Roscoff, un campus les pieds dans l'eau. ; Projet d'agrandissement (Département du Finistère, Bretagne, France)

Yann Christen

C'est à l'endroit même où les terres de la Bretagne maraîchère rencontrent les eaux tumultueuses de la Manche que s'établit Roscoff, petite cité littorale. Bastion des pionniers de la thérapie marine, elle est aussi le lieu de pèlerinage des naturalistes d ...

2011

Dynamics of wetland vegetation under multiple stresses: a case study of changes in sawgrass trait, structure, and productivity under coupled plant-soil- microbe dynamics

Andrea Rinaldo

This paper quantifies wetland vegetation dynamics under drought, waterlogging, shading, and nutrient stresses within the coupled plant-soil-microbe system. A plant is characterized by three independent traits, namely leaf nitrogen (N) content, specific lea ...

2011

Increased tolerance of sunflower mutant seedlings to Cd and Zn in hydroponic culture

Jean-Paul Schwitzguebel, Erika Nehnevajova

Cadmium and zinc show similarities in their chemistry, geochemistry and environmental properties. Whereas Cd is a phytotoxic non-essential element, Zn is an essential trace element for plant growth and development. Zinc plays a fundamental role in several ...

2009

No Evidence for the Induction of Brown Algal Chemical Defense by the Phytohormones Jasmonic Acid and Methyl Jasmonate

Induced chemical defense reactions are widespread in marine brown algae. Despite the evidence that the biosynthesis of defense metabolites can be up-regulated upon herbivory, we do not know how this regulation of biosynthetic pathways to secondary metaboli ...

Springer-Verlag2008

T0002 / MilliNewton / Erreurs dues à l'orientation et aux forces latérales

Thomas Maeder

Le capteur de force MilliNewton est sensible aux forces latérales, dans le sens longitudinal à la poutre. Le degré de sensibilité du capteur à ces forces dépend essentiellement de la taille de la bille et de la longueur de la poutre. En revanche, la sensib ...

EPFL2004

Electrochemical decontamination of waters by advanced oxidation processes (AOPS): Case of the mineralization of 2,4,5-T on BDD electrode

Christos Comninellis, Pierre-Alain Michaud

In the present work, herbicide 2,4,5-trichlorophenoxyacetic acid, more commonly known as 2,4,5-T herbicide, has been completely mineralized (i.e. transformed into CO2 and H2O) in satd. aq. solns. using a semi-industrial electrochem. cell that contains a bo ...

2004

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