Bibliografie tematiche / Colza (Brassica napus L.)

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Letteratura scientifica selezionata sul tema "Colza (Brassica napus L.)"

Autore: Grafiati

Pubblicato: 25 gennaio 2025

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Articoli di riviste sul tema "Colza (Brassica napus L.)"

Santos, A. C., V. E. Fabris, L. C. Basso e H. P. Haag. "Composição química e qualidade biológica da torta de colza (Brassica napus, L: )". Anais da Escola Superior de Agricultura Luiz de Queiroz 45 (1988): 241–82. http://dx.doi.org/10.1590/s0071-12761988000100017.

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A composição química e a qualidade biológica da torta de colza obtida da semente, variedade CTC-4, foram determinados. A farinha foi preparada me diante prensagem da semente e extração da gordura com solvente, lixiviada durante 2 horas, com água corrente na proporção de 1:5, e agitação constante, a fim de reduzir os níveis de glicosinolatos. O efeito tóxico foi observado através do peso dos órgãos e da histopatologia dos órgãos em experimento de 60 dias. A qualidade biológica da torta desintoxicada, ao nível de 5% e 10%, foi semelhante ao da caseína (PER controle 3,18 vs 3,08, 5% e 2,98, 10%). O PER da torta crua foi de 2,28. Os ratos que receberam a farinha crua tiveram órgãos maiores. As tireóides dos ratos submetidos as dietas 2 e 3, não demonstraram alterações que suspeitassem de um efeito bociogênico e as alterações ocorridas nas tireóides dos animais que receberam, D-4 foram semelhantes àquelas ocorridas nos grupos 2 e 3. Não houve danos célulares graves em relação ao fígado, os rins, o coração, baço e supra-renais para todos os grupos observados. O método de extração dos fatores tóxicos da colza foi eficiente de acordo com os resultados obtidos para o presente estudo.

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Hryczyna, Anderson Bergamasco, Tiago Roque Benetoli da Silva, Lucas Ambrosano e Gesmila Karoline Zampronio. "ADUBAÇÃO FOLIAR DE BORO EM DOIS HÍBRIDOS DE CANOLA". Nativa 9, n. 5 (23 dicembre 2021): 600–604. http://dx.doi.org/10.31413/nativa.v9i5.12553.

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A canola (Brassica napus L. var oleífera) é uma oleaginosa, pertencente à família Brassicaceae, resultado do cruzamento interespecífico entre repolho silvestre (Brassica oleracea L.) e mostarda (Brassica rapa L., syn. campestris). O boro é considerado um micronutriente, que atua na translocação de açúcares, formação de proteínas, crescimento do tubo polínico, germinação dos grãos de pólen, desenvolvimento das sementes e das paredes celulares. O objetivo desta pesquisa foi estudar as interferências nos componentes produtivos de dois híbridos de canola com a aplicação de adubação com boro por via foliar. Para tanto, instalou-se um experimento em condições de campo num delineamento experimental de blocos ao acaso em arranjo fatorial 2 x 3. Utilizou-se os híbridos Hyola 433 e Hyola 575 CL e três doses de boro foliar (0;100; 200) g ha-1 de B. As seguintes características foram avaliadas: número de plantas, número de síliquas por planta, massa de parte aérea, massa de 100 grãos e produtividade. Com a aplicação de boro houve aumento da massa de grãos independente do híbrido. Para produtividade houve aumento somente para o híbrido Hyola 433, sendo a maior produtividade alcançada na dose de 200 g ha-1. O híbrido Hyola 575 CL não teve sua produtividade alterada com a aplicação de boro. Palavras-chave: ácido bórico; Brassica napus L. var. oleífera; colza; massa de 100 grãos; oleaginosa. Leaf boron fertilization in two rapessed ABSTRACT: Rapessed (Brassica napus L. var oleífera) is an oilseed, belongs to Brassicaceae family, resultated between inter specific crossing of wild cabbage (Brassica oleracea L.) and mustard (Brassica rapa L., syn. campestris). Boron is considered a micronutrient, acting in sugars translocation, protein formation, pollen tube growth, pollen grain germination, seeds and cell wall development. The aimed was to study the interferences in productive components of two rapessed hybrids with application of boron fertilization by leaf application. For this, a field experiment was installed by using experimental design of randomized blocks in a 2 x 3 factorial scheme. Hyola 433 and Hyola 575CL hybrids and three doses of leaf boron (0; 100 and 200) g ha-1 of B were used. The following characteristics were evaluated: plants number, number of pods per plant, mass of one hundred grains and yield. With boron application there was an increase in grain mass independent of the hybrid. In relation grain yield there was increase only for Hyola 433 hybrid, with the highest yield reached at 200 g ha-1. The Hyola 575CL hybrid did not have its productivity altered with the application of boron. Keywords: boric acid; Brassica napus L. var. oleífera; mustard; mass of a hundred grass; oilseeds.

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ROUSSELLE, Patrick, Françoise DOSBA e Frédérique EBER. "Restauration de la fertilité pour l'androstérilité génocytoplasmique chez le colza (Brassica napus L.). Utilisation des Raphano-Brassica". Agronomie 5, n. 5 (1985): 431–37. http://dx.doi.org/10.1051/agro:19850507.

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Sevilla Paniagua, Evangelina, e Hilda Susana Azpíroz Rivero. "CALIDAD DEL ACEITE EN SEMILLAS IRRADIADAS DE DOS ESPECIES DE COLZA (Brassica napus L. y B. campestris L.)". Revista Fitotecnia Mexicana 11, n. 11 (12 marzo 2024): 56. http://dx.doi.org/10.35196/rfm.1988.11.56.

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Se analizaron dos poblaciones M3 de colza derivadas de las variedades Target y Pachuca (Brassica napus y B. campestris) irradiadas con Co60, con el objeto de detectar plantas con alto contenido de aceite y bajo contenido de ácido erúcico, así como determinar la influencia de las radiaciones ionizantes sobre estos componentes. Se encontraron coeficientes de variación altos para el contenido de aceite en las variedades Target y Pachuca irradiadas, coñ relación a los testigos no irradiados; se detectaron también plantas con altos y bajos contenidos de ácido erúcico en las irradiadas; estos resultados se atribuyen a la presencia de mutaciones causadas por las radiaciones. El comportamiento observado en las poblaciones irradiadas para el contenido de ácido linoleico y el peso de semilla por planta fue semejante al de las poblaciones no irradiadas.

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Bruno, Adelino de Melo, de Assis Cardoso Almeida Francisco, Palmeira Gomes Josivanda, Pereira da Silva Wilton, dos Santos Moreira Inacia, Maria Gomes dos Santos Yvana, Ferreira Lisboa Jemima, Barbosa da Silva Polyana, do Nascimento Silva Semirames e Marcello de Brito Primo Dalmo. "Physiological response of colza (Brassica napus L.) seeds coated and treated with alternative materials". African Journal of Agricultural Research 14, n. 22 (30 maggio 2019): 943–48. http://dx.doi.org/10.5897/ajar2019.14044.

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AZAÏS, Jean-Marc, Janine ONILLON e Marianne LEFORT-BUSON. "Une méthode d'étude de phénomènes de compétition entre génotypes. Application au colza (Brassica napus L.)". Agronomie 6, n. 7 (1986): 601–14. http://dx.doi.org/10.1051/agro:19860701.

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Mesquida, J., MH Pham-Délègue, R. Marilleau, M. Le Métayer e M. Renard. "La sécrétion nectarifère des fleurs de cybrides mâles-stériles de colza d'hiver (Brassica napus L)". Agronomie 11, n. 3 (1991): 217–27. http://dx.doi.org/10.1051/agro:19910308.

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Ben Youssef, Nabil, Issam Nouairi, Sonia Ben Temime, Wael Taamalli, Mokhtar Zarrouk, Mohamed Habib Ghorbal e Douja Ben Miled Daoud. "Effets du cadmium sur le métabolisme des lipides de plantules de colza (Brassica napus L.)". Comptes Rendus Biologies 328, n. 8 (agosto 2005): 745–57. http://dx.doi.org/10.1016/j.crvi.2005.05.010.

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Najine, Fouzia, Brahim Marzouk e Abdelkader Cherif. "Effet du chlorure de sodium sur la composition lipidique de la feuille de colza (Brassica napus)". Canadian Journal of Botany 73, n. 4 (1 aprile 1995): 620–28. http://dx.doi.org/10.1139/b95-066.

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The effect of increasing NaCl concentrations up to 170 mM on the lipid composition of leaf membranes was studied on rape (Brassica napus L. var. oleifera Metzg) in hydroponic culture for one month. At NaCl concentrations lower than 102 mM, the polar glycerolipid biosynthesis was stimulated. NaCl concentrations higher than 102 mM reduced the contents in total lipids, monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and phospholipids. In contrast, the neutral lipid contents increased with increasing NaCl concentration. An increase in NaCl induced a decrease in linolenic and hexadecatrienoic acid contents and an increase in linoleic and palmitic acid contents in all lipid groups. Key words: rape, lipids, sodium chloride.

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Kavian, Ataollah, Mahin Kalehhouei, Leila Gholami, Zeinab Jafarian, Maziar Mohammadi e Jesús Rodrigo-Comino. "The Use of Straw Mulches to Mitigate Soil Erosion under Different Antecedent Soil Moistures". Water 12, n. 9 (9 settembre 2020): 2518. http://dx.doi.org/10.3390/w12092518.

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Straw mulch cover is one of the most important soil erosion control measures applied to reduce runoff and soil loss in cultivated areas. However, in developing countries such as Iran, without a clear tradition or knowledge about soil erosion control measures, the use of straw mulch is rare, and its impact in the most extended crops is not well understood. We investigated the separate and combined effects of colza (Brassica napus L.) and corn (Zea mays L.), to mitigate the activation of soil loss and runoff in sandy-loam soils, under different antecedent soil moisture conditions, in a rainfed plot in Northern Iran. Under laboratory conditions, we used a rainfall simulator device. The experiments were performed by using a rainfall intensity of 50 mm h−1, with a duration of 10 min and an inclination of 30%, with three replications. These conditions were used to evaluate the soils under extreme meteorological and topographical conditions. Two types of straw mulch, colza and corn, separated and combined with three different cover levels (25, 50 and 75%) and four distinct antecedent soil moisture conditions (0, 15, 20 and 30%), were used. The results showed that the applied straw mulches had significant effects on the reduction of soil loss and sediment concentration, by almost 99%. The maximum reduction of soil loss and sediment concentration was observed for the treatments with 0% moisture and 75% of corn, colza + corn and colza, with a reduction of 93.8, 92.2 and 84.9% for soil loss, respectively, and 91.1, 85.7 and, 60.7% for sediment concentration, respectively. The maximum reduction of runoff was also obtained with 0% soil moisture and a cover of 75%, reducing 62.5, 48.5 and 34.8% for colza, colza + corn and corn, respectively. The corn straw mulch showed the highest effectivity on reducing soil loss and sediment concentration toward colza treatment. But the colza straw mulch showed the best results on reducing runoff toward corn treatment. We conclude that the application of straw mulch is affordable and useful in reducing soil loss and runoff, instead of bare soils.

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Più fonti

Tesi sul tema "Colza (Brassica napus L.)"

Guerche, Philippe. "Transformation génétique du colza (Brassica napus L. )". Paris 11, 1988. http://www.theses.fr/1988PA112134.

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Des plantes de colza transgéniques ont été obtenues en utilisant deux stratégies de transformation différentes. La régénération et la caractérisation de plantes issues de racines transformées par Agrobacterium rhizogenes est décrite dans la première partie. Une deuxième partie est consacrée à l'étude de la transformation directe de protoplastes par électroporation. La mise au point de cette technique a été réalisée sur des protoplastes de tabac par utilisation d'un dosage d'expression transitoire. L'application de l'électroporation aux protoplastes de colza a permis d'obtenir des plantes transgéniques exprimant un gène de résistance à la kanamycine. Différentes applications agronomiques possibles de ces méthodes de transformation sont envisagées pour le colza
Transgenic rapeseed plants have been obtained using two transformation procedure. The regeneration and caracterization of rapeseed plants derived from hairy roots induced by Agrobacterium rhizogenes are describe in the first part. The second part is devoted to the study of direct gene transfer by electroporation. This technique was optimized on tobacco protoplasts using a transient expression assay. The application of this technique to rapessed protoplasts made it possible to obtain transgenic rapeseed plants resistant to the antibiotic kanamycin. Possible agronomy applications of this strategy of transformation to rapeseed improvement are considered

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Guerche, Philippe. "Transformation génétique du colza, Brassica napus L". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376140414.

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Nicolas, Stéphane. "Contrôle génétique de la recombinaison homéologue chez les hapoloïdes de Colza (Brassica Napus L. )". Rennes, Agrocampus, 2007. http://www.theses.fr/2006NSARH069.

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Valoriser les gènes d’intérêt présents au sein des espèces sauvages apparentées aux espèces cultivées et/ou exploiter le polymorphisme structural susceptible d’exister au seuil des génomes polyploïdes implique de mieux comprendre quels sont les facteurs génétiques et structuraux contrôlant les échanges entre les génomes apparentés (homéologues) et comment ils –inter-agissent. Pour répondre à ces questions, j’ai développé une stratégie originale permettant d’analyser la fréquence et la nature des remanimements structuraux qui surviennent au court de la méiose de plantes haploïdes (Ac, n=19) de colza (Brassicas Napus) présentant des comportements métiotiques très contrastés. J’ai d’abord montré que les gamètes fonctionnels produit par un haploïde de colza sont très majoritairement des gamètes non-réduits de type FDR, que ces gamètes transmettent pratiquement l’intégralité des réarrangements structuraux générés au cours de la méiose et que la plupart de ces remaniements résultent de crossing-overs qui se réalisent de façon privilégiée entre les régions homéologues, mais qui peuvent également se former entre des régions para(homéo)logues. J’ai alors montré que les différences de comportement méiotique observées entre génotypes haploïdes en Metaphase I reflètent des différences de fréquence de recombinaison. J’ai observé que les remaniements effectuent différemment les génomes A et C, ce qui suggère qu’il pourrait y avoir une sélection contre certains d’entre eux. J’ai enfin montré que la fréquence de remaniements varie d’un groupe de liaison à l’autre (cela dépend du génotype haploïde) et en fonction de la position sur les groupes de liaison
Natural biodiversity and beneficial chromosome rearrangements are an under exploited sustainable resource that can be used to enrich the genetic basis of cultivated plants. A lot is still to be done to make a more efficient use of these vast reservoirs of variation. This process is related to meiosis and recombination between related but divergent genomes. In this study, I have genotyped progenies of haploid x euploid B. Napus with molecular markers and analysed the rate and nature of chromosomal rearrangements originating at meiosis in two haploid genotype (n=19) that display very different meiotic behaviour at metaphase I. I show that a high number of chromosomal rearrangements occur during meiosis of B. Napus haploid and are transmitted by FDR-like unreduced gametes to their progeny ; most of these rearrangements are produced by crossing-overs that occur preferentially between regions of primary homeology (Muller), but may also take place between other duplicated regions showing intragenomic or intergenomic homology. I show that the two haloid genotypes display sharp differences of meiotic “homeologous” recombination and that the two genomes of B. Napus are differentially affected by rearrangements, which suggests that some rearrangements are counter-selected. Finally I show that the rate of chromosomal reshuffling varies within and among chromosomes

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Garnier, Aurélie. "Dynamique et dispersion d'une espèce cultivée échappée des champs : le cas du colza". Paris 11, 2006. http://www.theses.fr/2006PA112199.

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Cette thèse identifie et quantifie certains processus gouvernant l'échappement du colza, sa persistance et son expansion en milieu hors-champ. Tout d'abord, des analyses d'élasticité réalisées sur deux modèles montrent que la banque de graines, l'immigration et la dispersion à longue distance déterminent la dynamique et la dispersion du colza hors-champ. Ensuite, un modèle statistique fournit des paramètres démographiques à partir d'un suivi pluriannuel. Il montre que l'immigration est stochastique et apporte en moyenne quelques centaines ou dizaines de graines par mètre de bordure de route, selon sa provenance. Seules 5% des plantes parviennent à maturité, chacune ne produisant que 2 à 3 rosettes. Des simulations, réalisées avec les précédents paramètres, montrent que les populations hors-champ persistent de 5 à 7 ans, essentiellement via une banque de graines alimentée par l'immigration. Pour finir, des approches complémentaires permettent d'estimer plusieurs modes de dispersion de graines. Une expérience montre que les graines tombées sur le sol peuvent être ré-entraînées, probablement par les véhicules. Une méthode de maximisation de vraisemblance, utilisant un modèle de flux de graines et des données spatiales et génétiques, montre que la moitié des plantes hors-champ proviennent de sources inconnues, les autres provenant des champs à maturité adjacents. La majorité des graines dispersées ainsi restent sur la bordure adjacente aux champs. Les rares populations de colza hors-champ de grande taille doivent être étudiées finement car elles pourraient avoir des capacités de persistance et de dispersion plus importantes et donc influencer les flux de (trans-)gènes
This thesis identifies and quantifies some key-processes governing the escape of oilseed rape from crops, its persistence and expansion in uncultivated areas. First, elasticity analyses, performed with two models, show that persistence of seeds within seedbanks, immigration and long-distance dispersal determine the dynamic and dispersal of feral populations. Secondly, a statistical model provides demographical parameters of feral populations from the explicit likelihood of observed and unobserved stages, obtained from a three-year survey. It shows that immigration is stochastic and provides on average several hundreds and tens of seeds per meter of road verges, depending on its source type (adjacent mature crops or grain trucks). It also shows that only 5% of plants survive until maturity and produce 2 to 3 rosettes. Simulations performed with the above parameters show that feral populations can persist between 5 and 7 years, mainly via a seedbank and immigration. Third, complementary approaches estimate several seed dispersal modes. An experiment shows that seeds fallen on the ground can be re-entrained, probably by vehicles. The best-fitting estimates of a seed flow model, based on both spatial and genetic data and a likelihood-based method, show that half of feral plants originates from unknown seed sources while the other half originates from mature crops. The majority of seeds dispersed from mature crops are likely to remain in front of borders. Rare but large and persisting feral populations should be studied because they could have persistence and dispersal abilities higher than those found here and may therefore influence (trans-)gene flow

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Lefort-Buson, Marianne. "Heterosis chez le colza oléagineux (Brassica napus L. ) : analyse génétique et prédiction". Paris 11, 1986. http://www.theses.fr/1986PA112036.

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Différents aspects du phénomène d’hétérosis chez le colza oléagineux d’hiver (Brassica napus L. ) sont abordés : amplitude, analyse génétique, possibilités de prédiction. L’ensemble des travaux présentés a porté sur plusieurs caractères agronomiques évalués au champ en petites parcelles semées à la densité de 4 Kg/ha. Dans une première partie sont comparées quelques caractéristiques des hybrides et des lignées. Les hybrides se révèlent en moyenne supérieurs aux lignées, de façon plus ou moins nette selon les caractères. Pour le rendement en grains, certaines combinaisons ont dépassé de plus de 20% leur meilleur parent ; ce gain diminuerait de moitié à chaque génération d’autofécondation. La supériorité des hybrides sur les lignées n’est pas associée, cependant, à des différences entre structures homozygote et hétérozygote pour les matrices de variance/covariances des résidus des divers caractères : les relations non génétiques (en partie physiologiques) entre caractères seraient du même type pour les deux structures. Dans une seconde partie sont étudiées diverses relations entre l’hétérosis ou la performance de l’hybride F1 et différents indicateurs de la divergence génétique entre lignées parentales. Quel que soit le caractère, l’hétérosis augmente avec un indicateur inversement proportionnel au coefficient de parenté de Malécot ; la corrélation entre ces deux paramètres est peu élevée et varie selon les caractères. L’utilisation simultanée de cet indicateur connu a priori et d’indices de distance multivariés estimés a posteriori semble être relativement efficace pour la prédiction de l’hétérosis et de la valeur hybride. L’étude de l’organisation de la variabilité génétique traitée dans la partie suivante a donné des résultats différents selon le matériel considéré. Dans la population de lignées sélectionnées d’origines européennes, il est apparu une prépondérance de la variance des effets génétiques additifs dans la variation génétique globale pour la majorité des caractères. De plus, les effets additifs d’aptitude générale à la combinaison sont positivement corrélés aux valeurs propres des lignées considérées. Par ailleurs, l’étude d’hybrides issus de parents d’origines géographiques très différentes a révélé une variabilité des effets non additifs au moins aussi grande que celle des effets additifs ; ce résultat pourrait être expliqué par l’établissement de nouvelles relations de dominance et d’épistasie entre génomes très divergents. Dans une dernière partie, l’ensemble des résultats est discuté au plan théorique et comparé à ceux connus pour différentes espèces végétales. Quelques conséquences pratiques pour la sélection du colza sont aussi présentées.

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Szadkowski, Emmanuel. "Devenir des génomes et des gènes dans un contexte polyploïde : cas du colza (Brassica napus L.)". Rennes, Agrocampus Ouest, 2011. http://www.theses.fr/2011NSARC101.

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L’allopolyploïdie (plusieurs lots de génomes apparentés dans un individu) joue un rôle majeur dans la spéciation et la biodiversité des Angiospermes contemporaines. Les espèces allopolyploïdes permettent d’aborder les mécanismes de régulation de la redondance d’information génétique lors de la confrontation de deux génomes proches. On peut pour cela utiliser des hybrides polyploïdes synthétisés de novo à partir des espèces parentales préalablement identifiées. Le colza (Brassica napus AACC, 2n=38) est issu du croisement entre B. Rapa (AA, 2n=20) et B. Oleracea (CC, 2n=18). Au cours des premières générations de colzas synthétiques, on observe de la recombinaison entre régions homéologues (mêmes régions sur chaque génome), alors que des modifications fonctionnelles se mettent en place dès la confrontation des deux génomes dans l’hybride F1 (génome AC). L’objectif de ce travail est de déterminer l’importance relative des modifications structurales et leurs conséquences fonctionnelles dans les toutes premières générations après hybridation. Nous avons étudié par analyses cytogénétique et génétique la stabilité de la première méiose d’hybrides F1 (génome AC) et des S0 (génome AACC) correspondantes issus de gamètes non réduits ou de doublement somatique. Nous avons focalisé cette étude sur les deux chromosomes homéologues les plus synténiques (A1 et C1) pour maximiser la probabilité de recombinaison homéologue. Nous avons enfin étudié les conséquences des remaniements faisant varier le nombre de copies de gènes homéologues sur leur niveau d’expression. Nous montrons que la polyploïdie soumet la première génération de colzas synthétiques à une phase de forte restructuration des génomes A et C, les gamètes transmis n’étant pas équivalents selon le mode de formation du polyploïde et le cytoplasme (Szadkowski et al. , 2010). Nous montrons également que ces restructurations à l’état hétérozygote semblent dicter le niveau d’expression des copies de gènes homéologues. Cette étude devrait permettre de mieux comprendre la phase d’instabilité précédant la stabilisation d’une jeune espèce allopolyploïde telle que le colza
Allopolyploidy plays a key role in Angiosperm speciation and biodiversity. Allopolyploid species are good models to understand how genes and genome redundancy are managed at the confrontation of two genomes in resynthesized plants from known progenitors. Progenitors of oilseed rape (Brassica napus (AACC, 2n=38) are close to B. Rapa (AA, 2n=20) and B. Oleracea (CC, 2n=18). Homoeologous recombination (between parental genomes) is detected after some generations of resynthesized B. Napus, while gene expression is strongly modified as early as in F1 hybrids. This work focused on the magnitude of structural modifications at onset of polyploid formation and their consequences on homoeologous gene expression. Using cytogenetic approach, we studied the first meiosis of F1 hybrids (AC genome) and their derived S0 plants (AACC genome) obtained through somatic doubling or using its female unreduced gametes. Homoeologous recombination in their progrenies was studied by molecular approach, focusing on two highly syntenic homoeologous chromosomes (A1 and C1) to maximize homoeologous recombination probability. We finally studied gene expression in homoeologous regions on A1 and C1 where recombination occurred and modulates their copy number. We showed that the first meiosis of B. Napus blends genomes (Szadkowski et al. , 2010), in a magnitude that depend upon polyploid formation pathways and cytoplasm. These genetic rearrangements bias homoeologous gene expression even at heterozygous stage. My results provide new clues to understand genetic and gene expression instability in young polyploid species like B. Napus

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Mimouni, Brahim. "Étude comparative des constituants polypeptidiques de la fraction globuline des graines de colza (Brassica napus L. ) et espèces parentales (Brassica oleracea L. Et Brassica campestris L. )". Bordeaux 1, 1989. http://www.theses.fr/1989BOR10514.

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Etude des proprietes physicochimiques des constituants polypeptidiques des globulines de graines de colza. Comparaison des structures primaires et homologies de sequences entre ces polypeptides. Discussion de l'origine genetique et post-traductionnelle des constituants peptidiques

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Gibot-Leclerc, Stéphanie. "Etude épidémiologique, écophysiologique et agronomique du couple Orobanche ramosa L. /Brassica napus L". Paris 6, 2004. http://www.theses.fr/2004PA066133.

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Gaudin, Zachary. "Place de l'azote dans l'interaction plante-plante parasite : Brassica napus L. Phelipanche ramosa (L. ) Pomel". Nantes, 2013. http://archive.bu.univ-nantes.fr/pollux/show.action?id=2e95d63f-dc3f-42be-b733-cc85c89532b5.

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L'orobanche rameuse (Phelipanche ramosa L. Pomel) dépend entièrement, pour son développement, des nutriments qu'elle prélève dans le phloème de sa plante hôte. En France, l'adaptation de cette orobanche aux cultures de colza d'hiver (Brassica napus L. ) est devenue un réel problème agronomique dans les régions les plus touchées. En considérant les directives actuelles de réduction significative des intrants azotés et l'importance de la nutrition azotée pour la productivité du colza, ces travaux visent à définir le rôle de l'azote (et autres minéraux associés : soufre et phosphore) dans la mise en place et le fonctionnement de cette interaction plante - plante parasite. Ainsi l'effet bénéfique de la fertilisation azotée sur la production ou l'exsudation dans la rhizosphère du stimulant de germination principal des graines d'orobanche, le 2-PEITC (relations N et S) et sur la sensibilité du colza à l'orobanche a été démontré. De même, l'analyse des flux globaux d'azote (traçage isotopique 15N et profilage des aminoacides) a souligné l'importance du puits surnuméraire précoce que représente l'orobanche vis-à-vis de l'azote réduit circulant dans l'interaction, en précisant l'impact du parasitisme sur le schéma de remobilisation de l'azote et les profils d'accumulation des aminoacides dans les différents compartiments de l'interaction. L'analyse des composés transférés de l'hôte vers le parasite et accumulés dans ce dernier a permis de souligner l'importance des aminoacides et plus particulièrement de la Gln comme transporteur d'azote longue-distance, mais également de mettre en lumière le rôle de composés spécifiques du colza, le SMCSO et les glucosinolates, dans l'interaction, et de l'Asn dans la remobilisation de l'azote chez le parasite
The broomrape (Phelipanche ramosa L. Pomel) strictly relies on nutrient uptake from phloem elements of its host plant. In France, its adaptation to winter oilseed rape (Brassica napus L. ) results in a major agronomical problem in the most infested regions. Considering the current guidelines of significant reduction in nitrogen inputs and the importance of nitrogen nutrition on oilseed rape productivity, this work aims to demonstrate the role of nitrogen (and other associated minerals : sulfur and phosphore) in the installation and functioning of this plant - parasitic plant interaction. Thus, the beneficial effect of nitrogen fertilization on the production and/or exudation of a major germination stimulant of broomrape seeds, the 2-PEITC, in oilseed rape rhizosphere, as well as on the rapeseed sensibility to broomrape has been here demonstrated. The analysis of the global nitrogen fluxes (15N isotope tracing and amino acid profiling) clarified the impact of parasitism on the nitrogen remobilization and amino acid accumulation patterns in the different compartments of the interaction. Analysis of transfered compounds from the host toward the parasite and accumulated in it has underlined the importance of amino acids and particularly of Gln as long-distance nitrogen carrier, but has also highlighted the role of specific compounds of rapeseed, SMCSO and glucosinolates, in this interaction, and of Asn in nitrogen remobilisation into the parasite

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Leitão, Inês Isabel Barata. "Exposição e acumulação de elementos potencialmente tóxicos em plantas de colza Brassica napus L". Master's thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/8231.

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Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia
The main objective of this work was to evaluate the effects and the response to stress induced by potentially toxic elements, arsenic, cadmium and copper by salinity in rapeseed plants, aiming to realize the potential of rapeseed in phytoremediation. The physiological parameters like biomass and the percentage of dry matter of stems and leaves were evaluated. It was also evaluated the chlorophyll content by Hansatech method. Changes in biomass were more evident in terms of As and NaCl contamination. The chlorophyll content of plants exposed to Cu and Cd proved to be very low, a result that was revealed through plants with obvious signs of necrosis and chlorosis. The concentrations of MDA and H2O2 revealed a heterogeneous behavior, especially with the higher concentration of MDA rape plants with Cu and NaCl and the highest concentration of H2O2 in the NaCl experiment. The mineral content of the plant was different in the various experiments, particularly the absorption of iron was affected by the presence of the PTE. The concentrations of PTE and NaCl were determined at the level of substrate, stems, leaves and seeds.

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Più fonti

Libri sul tema "Colza (Brassica napus L.)"

Canada. Interdepartmental Executive Committee on Pest Management. The biology of Brassica napus L. (Canola/Rapeseed). Ontario: Information Division of the Plant Industry Directorate, 1994.

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Chen, Bao-Yuan. Resynthesized Brassica napus L.: A potential in breeding and research. Svalo v, Sweden: Dept. of Crop Genetics and Breeding, Swedish University of Agricultural Sciences, 1989.

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Millam, Stephen. Studies on the application of biotechnology to Brassica napus L.. Wolverhampton: The Polytechnic, Wolverhampton, 1988.

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Salinas-Garcia, Gilberto Eduardo. Mapping quantitative trait loci controlling agronomic traits in Brassica napus L. Birmingham: University of Birmingham, 1996.

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Plümper, Bernhard. Somatische und sexuelle Hybridisierung für den Transfer von Krankheitsresistenzen auf Brassica napus L. [s.l.]: [s.n.], 1995.

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Falk, Anders. Structure and expression of [beta]-glucosidases and their binding proteins in Brassica napus L. Uppsala: Uppsala Genetic Center, Dept. of Cell Research, Swedish University of Agricultural Sciences, 1994.

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Ochs, Günther. Glutamin-Synthetasen in Brassica napus (L.): Isolation gewebespezifischer Isoformen und molekularbiologische Untersuchung des plastidären Enzyms. [s.l.]: [s.n.], 1993.

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Sjödin, Christina. Transfer of resistance against Phoma lingam to Brassica napus L. via somatic hybridization in combination with in vitro selection. Uppsala [Sweden]: Dept. of Plant Breeding, Institutionen för Växtförädling, Swedish University of Agricultural Sciences, 1989.

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Lelivelt, Cilia L. C. Introduction of beet cyst nematode resistance from Sinapis alba L. and Raphanus sativus L. into Brassica napus L. (oil-seed rape) through sexual and somatic hybridization. Netherlands?: [s.n.], 1993.

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Schock, Gerald. Die Multigenfamilie der Glutamin-Synthetase in Brassica napus (L.): Molekularbiologische Charakterisierung. 1995.

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Capitoli di libri sul tema "Colza (Brassica napus L.)"

Azimova, Shakhnoza S., e Anna I. Glushenkova. "Brassica napus L." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 190–96. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_633.

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Christophe, Wiart. "Rapeseed (Brassica napus L.)". In Handbook of Medicinal Plants of the World for Aging, 80–81. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003301455-34.

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Paniagua-Zambrana, Narel Y., Rainer W. Bussmann e Zaal Kikvidze. "Brassica cretica Lam. Brassica napus L. Brassica nigra (L.) K. Koch Brassica oleracea L. Brassica rapa L. Brassicaceae". In Ethnobotany of the Mountain Regions of Eastern Europe, 1–15. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-030-98744-2_53-1.

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Custers, J. B. M. "Microspore culture in rapeseed (Brassica napus L.)". In Doubled Haploid Production in Crop Plants, 185–93. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-1293-4_29.

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Thomzik, J. E. "Transformation in Oilseed Rape (Brassica napus L.)". In Biotechnology in Agriculture and Forestry, 170–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78037-0_13.

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Frieß, Johannes L., Broder Breckling, Kathrin Pascher e Winfried Schröder. "Case Study 2: Oilseed Rape (Brassica napus L.)". In Gene Drives at Tipping Points, 103–45. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38934-5_5.

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Hodgkin, T. "In Vitro Pollen Selection in Brassica napus L". In Sexual Reproduction in Higher Plants, 57–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73271-3_9.

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Boniecka, Justyna. "CRISPR/Cas-Based Precision Breeding of Oilseed Rape (Brassica napus L.) – Recent Improvements". In A Roadmap for Plant Genome Editing, 291–307. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-46150-7_18.

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AbstractThe seeds of oilseed rape (Brassica napus L.) are used in large-scale production of one of the most health-promoting plant oils in the food industry, as well as for animal feed and biofuel production. Thus, increasing the yield of this crop is of crucial economic and ecological importance. However, conventional breeding programs are slow, laborious and time-consuming. Hence, along with the discovery of the possibility to apply CRISPR/Cas technology to edit plant genomes and to accelerate the breeding process, much effort has been put into applying this technology to study specific genes and biosynthetic pathways, especially in species with many gene copies such as B. napus. Here, recent improvements in generating CRISPR/Cas-induced mutations in the B. napus genome, delivering CRISPR/Cas reagents into oilseed rape plant cells, fast-checking the efficiency of targeted mutagenesis of CRISPR/Cas reagents, and oilseed rape transformation and regeneration procedures are described. Finally, new applications of CRISPR/Cas tools in oilseed rape precision breeding are discussed, focusing mainly on applications verified in field.

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Zhang, Wenyu, Weixin Zhang, Daokuo Ge, Hongxin Cao, Yan Liu, Kunya Fu, Chunhuan Feng, Weitao Chen e Chuwei Song. "Biomass-Based Leaf Curvilinear Model for Rapeseed (Brassica napus L.)". In Computer and Computing Technologies in Agriculture IX, 459–72. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48357-3_44.

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Benaicha, Soumia, Idrissi Aissa, Panda Subhasis, Dybiendu S. Mahanty, Rainer W. Bussmann e Elachouri Mostafa. "Brassica fruticulosa Cirillo Brassica napus L. Brassica nigra W.D.J. KochBrassica oleracea L. Brassica rapa L. Coincya tournefortii (Gouan) Alcaraz, T.E. Díaz, Rivas Mart., & Sánchez-Gómez Brassicaceae". In Ethnobotany of Mountain Regions, 1–14. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-13933-8_53-1.

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Atti di convegni sul tema "Colza (Brassica napus L.)"

Kolbjonoks, Vadims, Aleksandrs Petjukevičs, Marina Krasovska e Natalja Škute. "Influence of Fe₃ O₄ Nanoparticles on Oxidative Processes and Photosynthetic Pigments of Brassica Napus L., Under Drought". In 2024 IEEE 14th International Conference Nanomaterials: Applications & Properties (NAP), 1–6. IEEE, 2024. http://dx.doi.org/10.1109/nap62956.2024.10739747.

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Vinogradov, D. V., e T. V. Zubkova. "Productivity of spring rape (Brassica napus var. Napus) and spring colza (Brassica rapa L. subsp. campestris) against the background of biological fertilizers". In II INTERNATIONAL CONFERENCE “SUSTAINABLE DEVELOPMENT: AGRICULTURE, VETERINARY MEDICINE AND ECOLOGY”. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0161099.

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Муравенко, О. В., Л. В. Земцова, С. А. Зощук, O. Ю. Юркевич e T. E. Саматадзе. "GENOMIC VARIABILITY OF MUTANT RAPESEED LINES (BRASSICA NAPUS L.)". In Материалы I Всероссийской научно-практической конференции с международным участием «Геномика и современные биотехнологии в размножении, селекции и сохранении растений». Crossref, 2020. http://dx.doi.org/10.47882/genbio.2020.38.90.019.

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MIKŠA, Ovidijus, e Ligita BALEŽENTIENĖ. "С BUDGET IN THE AGROECOSYSTEMS OF MAIZE (ZEA MAYS L.) AND RAPESEED (BRASSICA NAPUS L.)". In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.036.

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The aim of this research was to calculate and compare the C budget changes for maize (Zea mays L.) and rapeseed (Brassica napus L.), identifying soil seasonal respiratory CO2 (Ra+h) and assimilated photosynthetic CO2 at plant different growth stages. The research was carried out for maize (Zea mays L.) and rapeseed (Brassica napus L.), during the vegetation period (2014 June – September) at the PI ASU Training Farm, Kaunas district. The mean soil CO2 emissions were 1.971±0.12 μmol m-2s-1 for maize, and 2.199±0.25 μmol m-2s-1 for rapeseed. The highest measured soil CO2 emissions 2.432±0.23 μmol m-2s-1 for rapeseed in June, and 2. 963±0.28 μmol m-2s-1 for the maize in the second half of July. The mean C budget in maize agro-ecosystems was 15.54 t ha-1, while it was 10.30 t ha-1 in rapeseed.

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Zhang, Wangfei, Erxue Chen, Zengyuan Li, Lei Zhao, Yongjie Ji e Yahong Zhang. "Using compact polarimetric parameters for rape (brassica napus L.) LAI inversion". In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE, 2017. http://dx.doi.org/10.1109/igarss.2017.8128338.

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Zhao, Lili, Shenglian Lu, Xinyu Guo, Weiliang Wen e Sheng Wu. "3D Shape Reconstruction and Realistic Rendering of Flowering Rape (Brassica napus L.)". In 2011 International Conference on Multimedia and Signal Processing (CMSP). IEEE, 2011. http://dx.doi.org/10.1109/cmsp.2011.154.

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Zhang, Wenyu, Yan Liu, Weixin Zhang, Weitao Chen, Hongxin Cao, Daokuo Ge, Chunhuan Feng, Chuwei Song, Sijun Ge e Yongxia Liu. "Biomass-based rapeseed (Brassica napus L.) stem and rachis geometric parameter model". In 2016 IEEE International Conference on Functional-Structural Plant Growth Modeling, Simulation, Visualization and Applications (FSPMA). IEEE, 2016. http://dx.doi.org/10.1109/fspma.2016.7818312.

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"Отдаленная гибридизация как метод создания 000-форм ярового рапса (Brassica Napus L.)". In ГЕНОФОНД И СЕЛЕКЦИЯ РАСТЕНИЙ. Новосибирск ИЦиГ СО РАН, 2020. http://dx.doi.org/10.18699/gpb2020-100.

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De Jesus-Hernandez, Alelhi, Genaro Amador-Espejo, Raul Delgado-Macuil e Hector Ruiz-Espinosa. "Effect of High-intensity Ultrasound on Canola Oil Bleaching (Brassica Napus l.)". In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/gckv6098.

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Currently, canola oil (Brassica napus L.) has placed as one of the most consumed oils in Mexico. This is because it has a high proportion of essential (linoleic and linolenic acids) and monounsaturated fatty acids (oleic acid). To retain its beneficial properties, the bleaching process is necessary. The generalized methodology for bleaching has some disadvantages like high clay consumption (3%), long time (180 min) and high temperature (140 °C) that can modify the cis to trans configuration on their unsaturated fatty acids.In this sense, emerging technologies (such as high-intensity ultrasound) can be applied to reduce clay consumption, obtaining a final product with oxidative stability and without compromising its chemical configuration. For this reason, the aim of this study was to evaluate the effect of high-intensity ultrasound treatment (40 kHz-600 W) for canola oil bleaching. For this, six ultrasonic treatments were applied, processing time (60 and 90 min) and bleaching clay percentage (1, 2 and 3%) at 65 °C. The study variables were the amount of chlorophyll a and b (µg/100 g), carotenoids, color (L*, a* and b*) and a FTIR analysis. Besides, the generalized methodology was employed as a control. The results showed that ultrasonic treatments with 60 and 90 min and 2% clay produced a small increase in chlorophyll a reduction (5% and 2%, respectively) and an important reduction in chlorophyll b (around twice) compared to the control sample. On the other hand, carotenoids were not affected by the US treatment obtaining higher reduction by the conventional method. These results influenced color response, since the ultrasonic samples showed lower values for b* and in a* parameters. Finally, the FTIR analysis exhibit no presence of configurations. In this way, high-intensity ultrasound can be widely considered as an assistant technology to make vegetable oil bleaching more efficient and effective.

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Zou, Xi-Ling, Ye Cong, Yong Cheng, Guang-Yuan Lu e Xue-Kun Zhang. "Screening and Identification of Waterlogging Tolerant Rapeseed (Brassica Napus L) During Germination Stage". In 2013 Third International Conference on Intelligent System Design and Engineering Applications (ISDEA). IEEE, 2013. http://dx.doi.org/10.1109/isdea.2012.294.

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