Search results for "Root"
showing 10 items of 1237 documents
Carbon storage in soils by ancient and modern wheat varieties
2022
Les émissions anthropiques de gaz à effet de serre sont le principal moteur du changement climatique. Le plan Climat, issu de la COP 21 tenue à Paris en 2015, vise à atteindre la neutralité carbone à l'horizon 2050. Pour atteindre cette neutralité carbone, les gaz à effet de serre doivent d'abord être stabilisés, puis fortement réduits au cours du siècle prochain. Dans cette dynamique, l'initiative « 4 pour 1000 » fixe comme objectif d'atteindre un taux de croissance annuel du stock de carbone dans les sols de 0,4% par an. Ce stockage additionnel devrait compenser les émissions de CO2 dans l'atmosphère liée aux activités humaines. Les sols agricoles sont identifiés comme un compartiment de …
Démarches de biologie intégrative pour la compréhension des flux de carbone, azote et eau dans la plante
2021
Les démarches de biologie intégrative, qui ont constitué le fil rouge de l’ensemble de mes travaux de recherche ont été abordées au sein de deux Axes Thématiques principaux : un axe concernant la qualité des produits récoltés et un axe concernant la valorisation des interactions plante-microorganismes favorisant le prélèvement des ressources azotées en conditions hydriques fluctuantes. C’est sur ce dernier axe que je travaille depuis mon recrutement en tant que Chargée de Recherche au sein de l’UMR Agroécologie. Cette approche de biologie intégrative (multi-disciplinaire et multi-échelle) me permet de hiérarchiser les processus écophysiologiques, métaboliques et moléculaires qui pourront êt…
Sulfate transporters in the plant’s response to drought and salinity: regulation and possible functions
2014
International audience; Drought and salinity are two frequently combined abiotic stresses that affect plant growth, development, and crop productivity. Sulfate, and molecules derived from this anion such as glutathione, play important roles in the intrinsic responses of plants to such abiotic stresses. Therefore, understanding how plants facing environmental constraints re-equilibrate the flux of sulfate between and within different tissues might uncover perspectives for improving tolerance against abiotic stresses. In this review, we took advantage of genomics and post-genomics resources available in Arabidopsis thaliana and in the model legume species Medicago truncatula to highlight and …
Eradication of Plasmodiophora brassicae during composting of wastes
2006
Survival of infectious inoculum of the clubroot pathogen Plasmodiophora brassicae was assessed following bench-scale flask composting experiments and large-scale composting procedures. Clubroot-affected material was provided by artificial inoculation of Chinese cabbage or naturally infected Brussels sprout and cabbage roots. Both sets of diseased material were used in flask experiments, and the latter in large-scale windrow and aerated tunnel experiments. Municipal green wastes, onion waste and spent mushroom compost were evaluated in flask experiments with varying temperature, aeration and moisture conditions. Green wastes were used in larger-scale composts. Within the limits of a Chinese …
胡塞尔现象学中人类社会的动物根源 (Version chinoise de « The Animal Roots of Human Society in Husserls Phenomenology)
2012
International audience
Composantes de l’architecture racinaire de la plante associées aux QTL de résistance à Aphanomyces euteiches dans des lignées quasi-isogéniques de po…
2021
Pea (Pisum sativum L.) is the most cultivated seed legume in the world after common bean. But it issubject to a disease against which there is no effective treatment, root rot caused by Aphanomyceseuteiches. The only sustainable solution to control A. euteiches is genetic control. Previous studies haveidentified a positive correlation between the root area or biomass of lines and their level of resistance toroot rot caused by A. euteiches. The aim of the internship, which was part of the research project"Diversification and Combination of Aphanomyces Resistance QTLs in Protein Pea (DORA)", was toidentify whether changes in the components of the root system architecture of pea are induced by…
Root topology and allocation patterns of Atriplex patula supplied with different nutrient concentrations
2007
To test whether sub-optimal available nutrient concentrations would result in a more herringbone root branching pattern, in lower root diameters, and in greater resource allocation to root growth than to above-ground portions, seedlings of Atriplex patula were grown under optimal (full), intermediate (1/3 full), and low (1/6 full) nutrient treatments. No significant differences were found between the full and 1/3 nutrient treatments for any of the parameters tested. Root topologies did not show conclusive responses to nutrient availability, however roots treated with 1/6 nutrient concentration showed the tendency to grow in a more herringbone pattern. Total dry weights and shoot dry weights…
Influence of systemic strontium ranelate on the progression and as adjunctive therapy for the nonsurgical treatment of experimental periodontitis
2021
Made available in DSpace on 2022-05-01T11:39:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01 Universidade Estadual Paulista Background: Strontium Ranelate (SR) presents overlapping osteoanabolic and anti-resorptive activity. However, the effects of SR on the progression of periodontitis through the alveolar bone and its potential applicability as adjunctive therapy to scaling and root planning remain poorly accessed. The aim of this study was to evaluate the effects of systemic (SR) both on the progression of experimental periodontitis (EP) and as adjunctive therapy to SRP. Material and Methods: Eighty male rats were divided into four groups (n=20): EP-PSS: EP induction and …
Studies concerning the production of volatile oil, rhizomes and roots, to different genotypes of Valeriana officinalis L.
2010
Valeriana officinalis L. is considered to pertain to European species, with great ecologic plasticity, which allows its adaptation to climate conditions characteristics to plain areas and also to mountain areas up to an altitude of 2400 meters. The species is a well-known curative plant, with a long history and multiple uses. Essential oils deriving from this species revealed the interest of researchers in food industry, cosmetics and officinal industry, furthermore being used as additives too.The raw material from which essential oils are being extracted is represented mainly by rhizomes and roots. This study has the purpose to emphasize the differences of essential oils production registe…
Phytochemical investigation and antitumor activity of coumarins from Sicilian accession of Ferulago nodosa (L.) Boiss. roots
2023
Ferulago nodosa (L.) Boiss. (Apiaceae) is a species occurring in the Balkan-Tyrrhenian area being present in Crete, Greece, Albania, and probably in Macedonia. From the roots of this accession of species, not previously investigated, four coumarins, grandivittin, aegelinol benzoate, felamidin and aegelinol, and two terpenoids, (2E)-3-methyl-4-[(3-methyl-1-oxo-2-buten-1yl)oxy]-2-butenoic acid and pressafonin-A, were isolated and spectroscopically characterized. The last one was never detected in Ferulago species. The evaluation of the anti-tumor effects of F. nodosa coumarins on colon cancer HCT116 cells showed only a modest effect on reduction of tumor cell viability. For aegelinol, the red…