Search results for "PLANTS"

The evolution of nitric oxide signalling diverges between the animal and the green lineages

2019

AbstractNitric oxide (NO) is a ubiquitous signalling molecule with widespread distribution in prokaryotes and eukaryotes where it is involved in countless physiological processes. While the mechanisms governing nitric oxide (NO) synthesis and signalling are well established in animals, the situation is less clear in the green lineage. Recent investigations have shown that NO synthase, the major enzymatic source for NO in animals, is absent in land plants but present in a limited number of algae. The first detailed analysis highlighted that these new NO synthases are functional but display specific structural features and probably original catalytic activities. Completing this picture, analy…

Alien flora of Europe: Species diversity, temporal trends, geographical patterns and research needs

2008

International audience; The paper provides the first estimate of the composition and structure of alien plants occurring in the wild in the European continent, based on the results of the DAISIE project (2004–2008), funded by the 6th Framework Programme of the European Union and aimed at “creating an inventory of invasive species that threaten European terrestrial, freshwater and marine environments”. The plant section of the DAISIE database is based on national checklists from 48 European countries/regions and Israel; for many of them the data were compiled during the project and for some countries DAISIE collected the first comprehensive checklists of alien species, based on primary data …

Segetal plant conservation in arable fields: functional role, farmers’ perception and farming systems

2014

International audience; Segetal plants, or “messicoles” as they are known in French, are weedy inhabitants of wheat crops (mainly winter cereals). The national list of segetal species includes 102 taxa; of which 7 are extinct, 52 threatened, 30 to be kept under close observation and 12 abundant. Data on their distribution indicates that they are mostly in decline due to intensive farming systems. As their survival is intrinsically linked to farming systems, we need to improve knowledge on their relationships with land management in order to establish a sound scientific basis for protection tools, to support and guide farmer conservation measures and to disseminate concerns for segetal biodi…

New perspectives and approaches in plant growth-promoting rhizobacteria research

2007

International audience; In the context of increasing international concern for food and environmental quality, use of Plant Growth-Promoting Rhizobacteria (PGPR) for reducing chemical inputs in agriculture is a potentially important issue. PGPR are root-colonizing bacteria that exert beneficial effects on plant growth and development, but they can be also employed in the control of plant pathogens, for enhancing the efficiency of fertilizers, and for degrading xenobiotic compounds. This book provides an update by renowned international experts on the most recent advances in the ecology of these important bacteria, the application of innovative methodologies for their study, their interactio…

BioVine project - Increase plant health through mycorrhizal fungi

2021

National audience; Organic vineyards still rely on large external inputs to control harmful organisms. BIOVINEwill develop natural solutions based on plant diversity to control pests and reduce pesticidedependence. The capacity of plants of increasing the ecosystem resistance to pests and invasivespecies is a well-known ecosystem service. However, monocultures like vineyards do notexploit the potential of plant diversity. BIOVINE aims to develop new viticultural systemsbased on increased plant diversity within (e.g. cover crops) and/or around vineyards by plantingselected plant species for the control of arthropods, soil-borne pests (oomycetes, fungi,nematodes), and foliar pathogens. Candid…

Molecular evolution within and between populations of Arabidopsis thaliana: the FRIGIDA gene

2003

Immunodetection of a 90 000-Mr polypeptide related to yeast plasma membrane ATPase in plasma membrane from maize shoots

1986

International audience

Des avancées en génétique pour lutter contre les stress

2021

National audience; Plusieurs projets de recherche en cours aideront à créer des variétés résistantes à divers bioagresseurs (aphanomyces chez le pois et la lentille, botrytis chez la féverole, puceron chez le pois, bruche chez la féverole et lentille) et tolérantes aux stress abiotiques (gel, stress hydrique) à plus ou moins long terme selon la complexité du caractère.

Inorganic carbon-stimulated O2 photoreduction is suppressed by NO2- assimilation in air-grown cells of Synechococcus UTEX 625

1995

International audience

Rac regulation of NtrbohD, the oxidase responsible for the oxidative burst in elicited tobacco cell

2004

International audience