Parcourir Sciences Et Techniques thématique/sous thématique "Sciences du vivant>>Biologie végétale (sciences végétales, sylviculture, mycologie...)"
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Aspergillus spp. and Bacillus spp. as Growth Promoters in Cotton Plants Under Greenhouse Conditions
13 août 2021, HE CondorcetArticle scientifique"This study aimed to verify the potential of three Aspergillus and Bacillus species as growth promoters in cotton plants under greenhouse conditions. The experiment was conducted with a completely randomized design with seven treatments (six microorganisms plus one control) and five replicates until the flowering stage at 70 days after emergence." Extrait de l'abstract -
The bacterial world inside the plant
28 juillet 2022, HE CondorcetArticle scientifique"This review provides an overview of the current research, including the concept of endophytes, endophytes in plant organs, endophyte colonization, nutrient e ciency use, endophytes and crop nutrition, inoculation with synergistic bacteria, the eect of inoculum concentration on plant root microbiota and synthetic communities. It also examines the practical opportunities and challenges when utilizing ... -
Ecological, morpho-agronomical, and nutritional characteristics of Sulla flexuosa (L.) Medik. ecotypes
16 août 2023, HE CondorcetArticle scientifique"The present work was part of assessing wild genetic plant resources of forage interest in Northern Morocco and aimed to study the agro-morphology and nutritional value of Sulla fexuosa (L.) Medik. (Hedysarum fexuosum L.) ecotypes. The seeds of twenty-one wild S. fexuosa (L.) Medik. ecotypes were collected from 21 sites. The edaphic and climatic characteristics of the collection sites were studied ... -
Ecological, morpho‑agronomical, and bromatological assessment of sorghum ecotypes in Northern Morocco
20 septembre 2023, HE CondorcetArticle scientifique"Sorghum Bicolor is a cereal used for grains as feed and food, mainly cultivated in dry areas. To study the possibilities of increasing its cultivation for feed purposes, ecological, morpho-agronomical, and bromatological characterization of some local ecotypes was conducted as the first steps toward selecting better cultivars. Indeed, twenty-one ecotypes were collected from farms in Northern Morocco ... -
Effect of the application of vermicompost and millicompost humic acids about the soybean microbiome under water restriction conditions
04 novembre 2022, HE CondorcetArticle scientifique"This study aimed to evaluate the responses of soybean plants to the application of vermicompost HA (HA-V) and millicompost (HA-M) along with Bradyrhizobium sp. under water restriction. The experiment was carried out in a greenhouse, and the treatments received Bradyrhizobium sp. inoculation with or without the application of HA from vermicompost and millicompost with or without water restriction. ... -
First Report of Plasmodiophora brassicae on Rapeseed in the Grand Duchy of Luxembourg
09 octobre 2009, HE CondorcetArticle scientifiqueFirst report sur la détection de Plasmodiophora brassicae en culture de colza au Grand-Duché de Luxembourg. -
Genetic Diversity Trends in the Cultivated Potato: A Spatiotemporal Overview
15 avril 2022, HE CondorcetCARAHArticle scientifiqueRésumé des auteurs : Monitoring the change in genetic diversity over time and space in crop species is essential to facilitating further improvement. As the world’s most important tuber crop for human consumption, and an ideal candidate to help address global food security, the cultivated potato deserves in-depth study in this regard. In this overview, some aspects of spatiotemporal diversity ... -
In Vitro Dual Culture of Polymyxa betae in Agrobacterium rhizogenes Transformed Sugar Beet Hairy Roots in Liquid Media
23 juin 2011, HE CondorcetArticle scientifique"Polymyxa betae is a soil-borne protist and an obligate parasite of sugar beet that transmits the beet necrotic yellow vein virus. Sugar beet hairy roots, transformed by Agrobacterium rhizogenes, were inoculated with surface-sterilized root fragments infected by P. betae. After 10 wk in a liquid medium, typical structures of P. betae were observed in this in vitro system. This first in vitro culture ... -
Inoculum Concentration and Mineral Fertilization : Effects on the Endophytic Microbiome of Soybean
07 juillet 2022, HE CondorcetArticle scientifique" The aim of the present study was to evaluate whether Bacillus subtilis inoculant concentrations and levels of mineral fertilization recommended for the crop have any influence on the endophytic microbiome of soybean plant roots." Extrait de l'abstract -
Intraspecific size shifts in generalist bumblebees and flowers lead to low functional consequences
04 septembre 2023, HE CondorcetArticle scientifiqueAbstract : "Body size is a trait that can affect plant–pollinator interaction efficiency and plant reproductive success. We explored the impact of intraspecific size shifts on the interactions between pollinators and flowering plants under controlled conditions. We considered two development conditions leading to the production of large and small individual flowers of Borago officinalis and Echium ... -
Molecular interactions between sugar beet and Polymyxa betae during its life cycle
20 janvier 2014, HE CondorcetArticle scientifique"Polymyxa betae is a biotrophic obligate sugar beet parasite that belongs to plasmodiophorids. The infection of sugar beet roots by this parasite is asymptomatic, except when it transmits Beet necrotic yellow vein virus (BNYVV), the causal agent of rhizomania. To date, there has been little work on P. betae–sugar beet molecular interactions, mainly because of the obligate nature of the parasite and ... -
A new phenotype of Polymyxa betae in Arabidopsis thaliana
21 avril 2011, HE CondorcetArticle scientifique"The aim of this work was to assess the infection of P. betae in Arabidopsis thaliana in order to learn more about the P. betae genome and its interaction with the host." Extrait de l'abstract -
Not in your usual Top 10 : protists that infect plants and algae
11 juillet 2017, HE CondorcetArticle scientifiqueFungi, nematodes and oomycetes belong to the most prominent eukaryotic plant pathogenic organisms. Unicellular organisms from other eukaryotic lineages, commonly addressed as protists, also infect plants. This review provides an introduction to plant pathogenic protists, including algae infecting oomycetes, and their current state of research. -
Oilseed Rape Cultivars Show Diversity of Root Morphologies with the Potential for Better Capture of Nitrogen
14 décembre 2021, HE CondorcetArticle scientifiqueThe worldwide demand for vegetable oils is rising. Oilseed rape (Brassica napus) diversifies cereal dominated crop rotations but requires important nitrogen input. Yet, the root organ is offering an untapped opportunity to improve the nitrogen capture in soil. This study evaluates three culture systems in controlled environment, to observe root morphology and to identify root attributes for superior ... -
Pedigree Validation and Reconstruction Applied in the Cultivated Potato Using 35 Microsatellites Markers
05 juin 2023, HE CondorcetCARAHArticle scientifiqueAbstract ; "Knowledge of the parental origin of crop species is a prerequisite for formulating efective strategies for genetic conservation, management, and utilisation of genotypes in breeding programmes and genetic studies. In the case of the potato, although pedigree information is well documented, the possible lack of accurate pedigree data for certain cultivars constitutes a loss of opportunity ... -
Plant Microbiota Beyond Farming Practices: A Review
29 mars 2021, HE CondorcetArticle scientifique"Being able to engineer microbial communities in ways that benefit crop health and growth will help decrease the number of chemical inputs required. Against this background, this review explores the impacts of agricultural practices on soil- and plant-associated microbiomes, focusing on plant growth-promoting microorganisms from a metagenomic perspective." Extrait de l'abstract -
Que nous apprend cette 1ère mesure de l’activité biologique des sols ?
22 juin 2023, HE CondorcetCARAHPublication d'intérêt général/presse"Évaluer la fertilité des sols n'est pas trivial. Très souvent, on résume cela à une série de mesures physico-chimiques telles que le pH, la granulométrie (texture), la richesse en éléments nutritifs (P, K, etc.) ou le statut organique (teneur en carbone total). Cette approche a ses avantages car elle se base sur des procédures éprouvées et bien souvent standardisées, relativement rapides et stables ... -
Systemic resistance induced by Bacillus lipopeptides in Beta vulgaris reduces infection by the rhizomania disease vector Polymyxa betae
19 décembre 2012, HE CondorcetArticle scientifiqueThe control of rhizomania, one of the most important diseases of sugar beet caused by the Beet necrotic yellow vein virus, remains limited to varietal resistance. In this study, we investigated the putative action of Bacillus amylolequifaciens lipopeptides in achieving rhizomania biocontrol through the control of the virus vector Polymyxa betae. Some lipopeptides that are produced by bacteria, ... -
Use of self-organizing map to analyze images of fungi colonies grown from Triticum aestivum seeds disinfected by ozone treatment
16 octobre 2012, HE CondorcetCARAHArticle scientifiqueWe submitted to ozone treatment Triticum aestivum (common wheat) seeds severely contaminated by fungi. Fungi colonies developed when seeds were placed over malt agar medium in Petri dishes; Fusarium sp. and Alternaria sp. were identified. However, conventional colonies counting did not allow a clear assessment of the effect of ozone disinfection. We thus used self-organizing maps (SOMs) to perform ... -
Versatile Antagonistic Activities of Soil-Borne Bacillus spp. and Pseudomonas spp. against Phytophthora infestans and Other Potato Pathogens
13 février 2018, HE CondorcetArticle scientifique"The world potato is facing major economic losses due to disease pressure and environmental concerns regarding pesticides use. This work aims at addressing these two issues by isolating indigenous bacteria that can be integrated into pest management strategies." Extrait de l'abstract