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| Registros recuperados: 48 | |
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| Cacas, Jean-luc; Bure, Corinne; Furt, Fabienne; Maalouf, Jean-paul; Badoc, Alain; Cluzet, Stéphanie; Schmitter, Jean-marie; Antajan, Elvire; Mongrand, Sébastien. |
| Although Glycosyl-Inositol-Phospho-Ceramides (GIPCs) are the main sphingolipids of plant tissues, they remain poorly characterized in term of structures. This lack of information, notably with regard to polar heads, currently hampers the understanding of GIPC functions in biological systems. This situation prompted us to undertake a large scale-analysis of plant GIPCs: 23 plant species chosen in various phylogenetic groups were surveyed for their total GIPC content. GIPCs were extracted and their polar heads were characterized by negative ion MALDI and ESI mass spectrometry. Our data shed light on an unexpected broad diversity of GIPC distributions within Plantae, and the occurrence of yet-unreported GIPC structures in green and red algae. In monocots,... |
| Tipo: Text |
Palavras-chave: Glycosphingolipid; Glycosyl-Inositol-Phospho-Ceramide; GIPC; Mass spectrometry; MALDI-TOF; Polar head; Roots; Photosynthetic tissues; Berries. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00166/27689/25884.pdf |
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| Alves Júnior,José; Bandaranayake,Wije; Parsons,Larry R.; Evangelista,Adão W. P.. |
| The experiment was conducted in an orchard located in University of Florida (Citrus Research and Education Center), Lake Alfred, Polk County, Florida, USA. The objective of this study was to evaluate the effects of water stress in root distribution of 'Valencia' orange tree on 'Swingle' citrumelo rootstock. Three treatments were imposed on the trees: 1) normal irrigation with microsprinklers, 2) no irrigation in winter (November through mid-March) and 3) rainfall exclusion by placing a water repelling fabric (Tyvek) under the trees. Trees in treatments 1 and 2 received normal rainfall during the winter, but treatment 3 received no rain. Normal irrigation was resumed on all treatments in mid March. Soil was collected using root auger head (0.09 m diameter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Irrigation; Orange; Roots. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600012 |
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| Lopes, Adriano da Silva; Universidade Estadual de Mato Grosso do Sul; Hernandez, Fernando Braz Tangerino; Universidade Estadual de Mato Grosso do Sul; Alves Júnior, José; Universidade Federal de Goiás; Oliveira, Gabriel Queiroz de; Universidade Federal da Grande Dourados. |
| The incorporation of technologies has resulted in increased productivity and the more rational management of peach palm, with irrigation being an important tool for certain regions. Thus, studies leading to proper crop management are extremely important, such as the estimate of the effective depth of the root system, which is indispensable for proper irrigation management. The objective of this study was to evaluate the effects of different irrigation depths, as applied by drip irrigation, on the distribution of the root system of peach palm. This experiment was conducted in Ilha Solteira, São Paulo State, Brazil, with drip irrigation, with the two systems (flow of 0.0023 m3 h-1) consisting of four irrigation treatments corresponding to 0, 50, 100 and 150%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Engenharia Agrícola; Irrigação Bactris gasipaes; Roots; Localized irrigation; Irrigation management 5.03.02.01-9. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16281 |
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| Huerta Olague, José de Jesús. |
| Se avaluó el efecto de la cobertura vegetal y de las raíces, de maíz (Zea mays L.), frijol (Phaseolus vulgaris L.), calabacita (Cucurbita pepo L.) y avena (Avena sativa L.), sobre el escurrimiento superficial y la perdida del suelo. El trabajo se realizo en un campo experimental de la Universidad Autónoma Chapingo y se utilizaron 8 tratamientos, 2 para cada cultivo (4 fueros subparcelas con cobertura vegetal y 4 subparcelas sin cobertura y solo con raíces, mismas que resultaron de cortar al ras del suelo los cultivos estudiados. La cobertura vegetal se midió en porcentajes y el sistema radical en densidad longitudinal de raíces (DLR). Se aplicó lluvia simulada a los 15, 30, 50 y 65 días de desarrollo sobre lotes de escurrimiento de 1 metro cuadrado y 10%... |
| Tipo: Tesis |
Palavras-chave: Escurrimiento superficial; Pérdida de suelo; Cobertura vegetal; Raíces; Maestría; Hidrociencias; Surface runoff; Soil loss; Vegetative cover; Roots. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1271 |
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| SANTOS,DANIEL M.C.; ESTRADA,GUSTAVO C.D.; FERNANDEZ,VIVIANE; ESTEVAM,MARCIEL R.M.; SOUZA,BRUNNA T. DE; SOARES,MÁRIO L.G.. |
| ABSTRACT Studies on belowground roots biomass have increasingly reported the importance of the contribution of this compartment in carbon stock maintenance in mangrove forests. To date, there are no estimates of this contribution in Brazilian mangrove forests, although the country has the second largest area of mangroves worldwide. For this study, trenches dug in fringing forests in Guaratiba State Biological Reserve (Rio de Janeiro, Brazil) were used to evaluate the contribution of the different classes of roots and the vertical stratification of carbon stock. The total carbon stock average in belowground roots biomass in these forests was 104.41 ± 20.73 tC.ha−1. From that, an average of 84.13 ± 21.34 tC.ha−1 corresponded to the carbon stock only in fine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Global climate change; Guaratiba State Biological Reserve; Roots; Sepetiba bay; Trench method. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401579 |
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| Registros recuperados: 48 | |
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