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1.
Carbohydr Res ; 475: 65-68, 2019 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-30844665

RESUMO

1-(N-Phenyl)amino-1-deoxy-α-D-manno-hept-2-ulose (2) and two multivalent BSA-based structures 7 and 8, d-manno-configured C-glycosyl-type compounds derived from an Amadori rearrangement, were evaluated as ligands for mannoside-specific lectins of various sources. The determination of the concentration corresponding to 50% of inhibition (IC50) is described. Multivalency turned out to effectively influence ligand selectivity and lectin binding.


Assuntos
Antibacterianos/farmacologia , Lectinas/farmacologia , Manosídeos/farmacologia , Amaryllidaceae/efeitos dos fármacos , Antibacterianos/química , Burkholderia/efeitos dos fármacos , Canavalia/efeitos dos fármacos , Galanthus/efeitos dos fármacos , Lectinas/síntese química , Lectinas/química , Ligantes , Manosídeos/química , Testes de Sensibilidade Microbiana , Estrutura Molecular , Vicia/efeitos dos fármacos
2.
Ann Bot ; 120(2): 329-339, 2017 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-28633349

RESUMO

Background and Aims: Understanding the direct consequences of polyploidization is necessary for assessing the evolutionary significance of this mode of speciation. Previous studies have not studied the degree of between-population variation that occurs due to these effects. Although it is assumed that the effects of the substances that create synthetic polyploids disappear in second-generation synthetic polyploids, this has not been tested. Methods: The direct consequences of polyploidization were assessed and separated from the effects of subsequent evolution in Vicia cracca , a naturally occurring species with diploid and autotetraploid cytotypes. Synthetic tetraploids were created from diploids of four mixed-ploidy populations. Performance of natural diploids and tetraploids was compared with that of synthetic tetraploids. Diploid offspring of the synthetic tetraploid mothers were also included in the comparison. In this way, the effects of colchicine application in the maternal generation on offspring performance could be compared independently of the effects of polyploidization. Key Results: The sizes of seeds and stomata were primarily affected by cytotype, while plant performance differed between natural and synthetic polyploids. Most performance traits were also determined by colchicine application to the mothers, and most of these results were largely population specific. Conclusions: Because the consequences of colchicine application are still apparent in the second generation of the plants, at least the third-generation polyploids should be considered in future comparisons. The specificities of the colchicine-treated plants may also be caused by strong selection pressures during the creation of synthetic polyploids. This could be tested by comparing the initial sizes of plants that survived the colchicine treatments with those of plants that did not. High variation between populations also suggests that different polyploids follow different evolutionary trajectories, and this should be considered when studying the effects of polyploidization.


Assuntos
Colchicina/farmacologia , Poliploidia , Vicia/genética , Diploide , Evolução Molecular , Tetraploidia , Vicia/efeitos dos fármacos
3.
Plant Cell Environ ; 39(3): 652-9, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26514625

RESUMO

The phytohormone abscisic acid (ABA) plays a major role in regulating root growth. Most work to date has investigated the influence of root-sourced ABA on root growth during water stress. Here, we tested whether foliage-derived ABA could be transported to the roots, and whether this foliage-derived ABA had an influence on root growth under well-watered conditions. Using both application studies of deuterium-labelled ABA and reciprocal grafting between wild-type and ABA-biosynthetic mutant plants, we show that both ABA levels in the roots and root growth in representative angiosperms are controlled by ABA synthesized in the leaves rather than sourced from the roots. Foliage-derived ABA was found to promote root growth relative to shoot growth but to inhibit the development of lateral roots. Increased root auxin (IAA) levels in plants with ABA-deficient scions suggest that foliage-derived ABA inhibits root growth through the root growth-inhibitor IAA. These results highlight the physiological and morphological importance, beyond the control of stomata, of foliage-derived ABA. The use of foliar ABA as a signal for root growth has important implications for regulating root to shoot growth under normal conditions and suggests that leaf rather than root hydration is the main signal for regulating plant responses to moisture.


Assuntos
Ácido Abscísico/farmacologia , Raízes de Plantas/crescimento & desenvolvimento , Brotos de Planta/metabolismo , Transporte Biológico/efeitos dos fármacos , Helianthus/efeitos dos fármacos , Helianthus/crescimento & desenvolvimento , Ácidos Indolacéticos/metabolismo , Folhas de Planta/efeitos dos fármacos , Folhas de Planta/metabolismo , Raízes de Plantas/efeitos dos fármacos , Brotos de Planta/efeitos dos fármacos , Vicia/efeitos dos fármacos , Vicia/crescimento & desenvolvimento , Zea mays/efeitos dos fármacos , Zea mays/crescimento & desenvolvimento
4.
Protoplasma ; 251(6): 1471-9, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24793462

RESUMO

This work was aimed to provide further information about toxicology of TiO2 nanoparticles (NPs) on Vicia narbonensis L., considering different endpoints. After exposure to TiO2 nanoparticle suspension (mixture of rutile and anatase, size <100 nm) at four different concentrations (0.2, 1.0, 2.0 and 4.0 ‰), the seeds of V. narbonensis were let to germinate in controlled environmental conditions. After 72 h, the extent of the success of the whole process (seed germination plus root elongation) was recorded as the vigour index, an indicator of possible phytotoxicity. After the characterisation of the hydric state of different materials, oxidative stress and enzymatic and nonenzymatic antioxidant responses were considered as indicators of possible cytotoxicity and to assess if damage induced by TiO2 NPs was oxidative stress-dependent. Cytohistochemical detection of in situ DNA fragmentation as genotoxicity endpoint was monitored by TUNEL reaction. The treatments with TiO2 NPs in our system induced phytotoxic effects, ROS production and DNA fragmentation. The nonenzymatic and enzymatic antioxidant responses were gradually and differentially activated and were able to maintain the oxidative damage to levels not significantly different from the control. On the other hand, the results of DNA fragmentation suggested that the mechanisms of DNA repair were not effective enough to eliminate early genotoxicity effects.


Assuntos
Nanopartículas/toxicidade , Titânio/toxicidade , Testes de Toxicidade , Vicia/efeitos dos fármacos , Antioxidantes/metabolismo , Ácido Ascórbico/metabolismo , Germinação/efeitos dos fármacos , Glutationa/metabolismo , Vigor Híbrido/efeitos dos fármacos , Peróxido de Hidrogênio/metabolismo , Marcação In Situ das Extremidades Cortadas , Meristema/citologia , Meristema/efeitos dos fármacos , Prolina/metabolismo , Plântula/anatomia & histologia , Plântula/efeitos dos fármacos , Vicia/enzimologia , Água/análise
5.
J Sci Food Agric ; 94(2): 235-45, 2014 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-23712286

RESUMO

BACKGROUND: Protein hydrolysates or hydrolysed proteins (HPs) are high-N organic fertilizers allowing the recovery of by-products (leather meal and fluid hydrolysed proteins) otherwise disposed of as polluting wastes, thus enhancing matter and energy conservation in agricultural systems while decreasing potential pollution. Chemical and biological characteristics of HPs of animal origin were analysed in this work to assess their safety, environmental sustainability and agricultural efficacy as fertilizers. Different HPs obtained by thermal, chemical and enzymatic hydrolytic processes were characterized by Fourier transform infrared spectroscopy and sodium dodecyl sulfate polyacrylamide gel electrophoresis, and their safety and efficacy were assessed through bioassays, ecotoxicological tests and soil biochemistry analyses. RESULTS: HPs can be discriminated according to their origin and hydrolysis system by proteomic and metabolomic methods. Three experimental systems, soil microbiota, yeast and plants, were employed to detect possible negative effects exerted by HPs. The results showed that these compounds do not significantly interfere with metabolomic activity or the reproductive system. CONCLUSION: The absence of toxic and genotoxic effects of the hydrolysates prepared by the three hydrolytic processes suggests that they do not negatively affect eukaryotic cells and soil ecosystems and that they can be used in conventional and organic farming as an important nitrogen source derived from otherwise highly polluting by-products.


Assuntos
Fertilizantes , Nitrogênio/metabolismo , Hidrolisados de Proteína , Saccharomyces cerevisiae/efeitos dos fármacos , Microbiologia do Solo , Solo/química , Vicia/efeitos dos fármacos , Animais , Ecossistema , Poluição Ambiental , Hidrolisados de Proteína/efeitos adversos , Saccharomyces cerevisiae/metabolismo , Segurança , Vicia/metabolismo
6.
Environ Sci Pollut Res Int ; 20(8): 5405-15, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23417437

RESUMO

The presence of cyanotoxins, mainly microcystins (MCs), in surface freshwater represents a serious health risk to aquatic organisms living in the water body, as well as terrestrial animals and plants that are in contact with contaminated water. Consequently, the use of MCs contaminated water for irrigation represents a hazard for cultivated plants and could induce severe economical losses due to crops' yield reduction. The experimental approach undertaken in this work was exposing Vicia faba seedlings (inoculated with a Rhizobium strain resistant to MCs), to water supplemented with cyanobacterial crude extract containing total microcystins at a concentration of 50 and 100 µg/L (environmental relevant concentrations of MCs dissolved in the raw irrigation water from Lalla Takerkoust Lake-Marrakesh region). After chronic MCs exposure (2 months), biological and physiological parameters (plant growth, nitrogen uptake, mineral assimilation, and oxidative defense mechanisms) were evaluated. The results obtained showed evidence that chronic exposure to cyanobacterial bloom extract containing MCs strongly affected the physiological and biological plants activities; reduction of dry matter, photosynthetic activity, nodule number, and nitrogen assimilation. At the same time, an increase of oxidative stress was observed, as deduced from a significant increase of the activities of peroxidase, catalase, polyphenoloxidase, and phenylalanine ammonia lyase in leaves, roots, and nodules of faba bean plants exposed to cyanotoxins, especially at 100 µg/L of MCs. This experimentation constitutes a simulation of the situation related to cyanotoxins chronic exposure of seedlings-plants via the contaminated irrigation water. For this reason, once should take into consideration the possibility of contamination of agricultural crops and the quality of irrigation water should be by the way monitored for cyanotoxins biohazard.


Assuntos
Misturas Complexas/farmacologia , Cianobactérias , Microcistinas/farmacologia , Rhizobium/efeitos dos fármacos , Simbiose/efeitos dos fármacos , Vicia/efeitos dos fármacos , Catalase/metabolismo , Catecol Oxidase/metabolismo , Peroxidase/metabolismo , Fenóis/metabolismo , Fenilalanina Amônia-Liase/metabolismo , Fotossíntese/efeitos dos fármacos , Folhas de Planta/efeitos dos fármacos , Folhas de Planta/metabolismo , Raízes de Plantas/efeitos dos fármacos , Raízes de Plantas/metabolismo , Rhizobium/fisiologia , Vicia/fisiologia
7.
Mol Plant ; 5(3): 601-10, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22402260

RESUMO

Radially arranged cortical microtubules are a prominent feature of guard cells. Guard cells expressing GFP-tubulin showed consistent changes in the appearance of microtubules when stomata opened or closed. Guard cells showed fewer microtubule structures as stomata closed, whether induced by transfer to darkness, ABA, hydrogen peroxide, or sodium hydrogen carbonate. Guard cells kept in the dark (closed stomata) showed increases in microtubule structures and stomatal aperture on light treatment. GFP-EB1, marking microtubule growing plus ends, showed no change in number of plus ends or velocity of assembly on stomatal closure. Since the number of growing plus ends and the rate of plus-end growth did not change when microtubule structure numbers declined, microtubule instability and/or rearrangement must be responsible for the apparent loss of microtubules. Guard cells with closed stomata showed more cytosolic GFP-fluorescence than those with open stomata as cortical microtubules became disassembled, although with a large net loss in total fluorescence. Microtubule-targeted drugs blocked guard-cell function in Vicia and Arabidopsis. Oryzalin disrupted guard-cell microtubules and prevented stomatal opening and taxol stabilized guard-cell microtubules and delayed stomatal closure. Gas exchange measurements indicated that the transgenes for fluorescent-labeled proteins did not disrupt normal stomatal function. These dynamic changes in guard-cell microtubules combined with our inhibitor studies provide evidence for an active role of microtubules in guard-cell function.


Assuntos
Arabidopsis/citologia , Arabidopsis/fisiologia , Microtúbulos/metabolismo , Estômatos de Plantas/citologia , Vicia/citologia , Vicia/fisiologia , Ácido Abscísico/farmacologia , Arabidopsis/efeitos dos fármacos , Arabidopsis/efeitos da radiação , Escuridão , Dinitrobenzenos/farmacologia , Fluorescência , Proteínas de Fluorescência Verde/metabolismo , Microtúbulos/efeitos dos fármacos , Microtúbulos/efeitos da radiação , Paclitaxel/farmacologia , Estômatos de Plantas/fisiologia , Estômatos de Plantas/efeitos da radiação , Transpiração Vegetal/efeitos dos fármacos , Plantas Geneticamente Modificadas , Proteínas Recombinantes de Fusão/metabolismo , Plântula/efeitos dos fármacos , Plântula/fisiologia , Plântula/efeitos da radiação , Sulfanilamidas/farmacologia , Tubulina (Proteína)/metabolismo , Vicia/efeitos dos fármacos , Vicia/efeitos da radiação
8.
Ecotoxicol Environ Saf ; 78: 281-6, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22154778

RESUMO

Sulfur dioxide (SO(2)) induced nuclear condensation and nuclear fragmentation and rapid loss of guard cell viability in detached epidermis of Vicia leaves at concentrations of 1 mM and higher (3 h exposure). Caspase inhibitors Z-Asp-CH(2)-DCB (0.1 mM) and TLCK (0.1 mM) markedly suppressed SO(2)-induced cell death. The typical nuclear morphological changes and the inhibition effects of caspase inhibitors suggest the activation of a programmed cell death (PCD) pathway. SO(2)-induced cell death can be blocked by either antioxidants (0.1 mM AsA or 200 U/mL CAT) or Ca(2+) antagonists (0.1mM EGTA or LaCl(3)). AsA and CAT also blocked SO(2)-induced ROS production and [Ca(2+)](cyt) increase. However, EGTA and LaCl(3) can inhibit SO(2)-induced [Ca(2+)](cyt) increase, but cannot suppress SO(2)-induced ROS production. Our results indicate that high concentrations of SO(2) induce guard cell death via a PCD pathway through ROS mediating [Ca(2+)](cyt) elevation, which causes harmful effects to plants.


Assuntos
Poluentes Atmosféricos/toxicidade , Dióxido de Enxofre/toxicidade , Vicia/efeitos dos fármacos , Apoptose/efeitos dos fármacos , Cálcio/metabolismo , Epiderme Vegetal/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Vicia/fisiologia
9.
Biometals ; 22(3): 479-90, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19152114

RESUMO

Red cabbage is a source of health beneficial substances with antioxidant and antigenotoxic properties. HPLC analysis specifying the content of the investigated extract indicated that mainly anthocyanins (ATH) were responsible for its abilities. Cytological research was conducted with two experimental models: plant tissues--meristematic cells of Vicia faba, and animal tissue elements--human lymphocytes. Positive influence of ATH extract on mitotic activity of Vicia cells exposed to Cu(2+) stress, and inhibitory effect of ATH on cytotoxic actions of Cu(2+) on lymphocytes were demonstrated. In all experimental series with ATH application in combinations with Cu(2+), mitotic index (MI) were higher than those obtained for only Cu(2+) stressed tissues. Preincubation in ATH before Cu(2+) stress had the best effect. Similarly, after ATH applications in all tested series decrease in frequency of micronuclei (MN) appearance was noticed in comparison with only Cu(2+) stressed material. In the case of Vicia cells ATH acted effectively even applied after Cu(2+) stress. It suggests that this ATH mixture not only prevents and limits but also heals the cytological injury caused by Cu(2+) stress.


Assuntos
Brassica/química , Cobre/farmacologia , Linfócitos/efeitos dos fármacos , Meristema/efeitos dos fármacos , Extratos Vegetais/farmacologia , Vicia/efeitos dos fármacos , Antocianinas , Células Cultivadas , Cromatografia Líquida de Alta Pressão , Humanos , Linfócitos/metabolismo , Meristema/metabolismo , Testes para Micronúcleos , Espécies Reativas de Oxigênio/metabolismo , Vicia/citologia , Vicia/metabolismo
10.
Mol Plant ; 1(2): 347-58, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19825544

RESUMO

There is now growing evidence that membrane vesicle trafficking proteins, especially of the superfamily of SNAREs, are critical for cellular signalling in plants. Work from this laboratory first demonstrated that a soluble, inhibitory (dominant-negative) fragment of the SNARE NtSyp121 blocked K+ and Cl- channel responses to the stress-related hormone abscisic acid (ABA), but left open a question about functional impacts on signal intermediates, especially on Ca2+-mediated signalling events. Here, we report one mode of action for the SNARE mediated directly through alterations in Ca2+ channel gating and its consequent effects on cytosolic-free [Ca2+] ([Ca2+]i) elevation. We find that expressing the same inhibitory fragment of NtSyp121 blocks ABA-evoked stomatal closure, but only partially suppresses stomatal closure in the presence of the NO donor, SNAP, which promotes [Ca2+]i elevation independently of the plasma membrane Ca2+ channels. Consistent with these observations, Ca2+ channel gating at the plasma membrane is altered by the SNARE fragment in a manner effective in reducing the potential for triggering a rise in [Ca2+]i, and we show directly that its expression in vivo leads to a pronounced suppression of evoked [Ca2+]i transients. These observations offer primary evidence for the functional coupling of the SNARE with Ca2+ channels at the plant cell plasma membrane and, because [Ca2+]i plays a key role in the control of K+ and Cl- channel currents in guard cells, they underscore an important mechanism for SNARE integration with ion channel regulation during stomatal closure.


Assuntos
Ácido Abscísico/farmacologia , Cálcio/metabolismo , Ativação do Canal Iônico/fisiologia , Proteínas SNARE/fisiologia , Vicia/fisiologia , Membrana Celular/efeitos dos fármacos , Membrana Celular/fisiologia , Dexametasona/farmacologia , Ativação do Canal Iônico/efeitos dos fármacos , Fragmentos de Peptídeos/farmacologia , Plantas Geneticamente Modificadas/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Tabaco/efeitos dos fármacos , Tabaco/fisiologia , Vicia/efeitos dos fármacos
11.
Plant Cell Physiol ; 48(5): 715-23, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17389607

RESUMO

Recent evidence suggests that nitric oxide (NO) acts as an intermediate of ABA signal transduction for stomatal closure. However, NO's effect on stomatal opening is poorly understood even though both opening and closing activities determine stomatal aperture. Here we show that NO inhibits stomatal opening specific to blue light, thereby stimulating stomatal closure. NO inhibited blue light-specific stomatal opening but not red light-induced opening. NO inhibited both blue light-induced H(+) pumping and H(+)-ATPase phosphorylation. The NO scavenger 2-carboxyphenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (c-PTIO) restored all these inhibitory effects. ABA and hydrogen peroxide (H(2)O(2)) inhibited all of these blue light-specific responses in a manner similar to NO. c-PTIO partially restored the ABA-induced inhibition of all of these opening responses but did not restore inhibition of the responses by H(2)O(2). ABA, H(2)O(2) and NO had slight inhibitory effects on the phosphorylation of phototropins, which are blue light receptors in guard cells. NO inhibited neither fusicoccin-induced H(+) pumping in guard cells nor H(+) transport by H(+)-ATPase in the isolated membranes. From these results, we conclude that both NO and H(2)O(2) inhibit blue light-induced activation of H(+)-ATPase by inhibiting the component(s) between phototropins and H(+)-ATPase in guard cells and stimulate stomatal closure by ABA.


Assuntos
Ácido Abscísico/farmacologia , Luz , Doadores de Óxido Nítrico/farmacologia , Vicia/fisiologia , Óxidos N-Cíclicos/farmacologia , Depuradores de Radicais Livres/farmacologia , Peróxido de Hidrogênio/farmacologia , Imidazóis/farmacologia , Óxido Nítrico/metabolismo , Óxido Nítrico/fisiologia , Fosforilação/efeitos dos fármacos , Epiderme Vegetal/citologia , Epiderme Vegetal/fisiologia , Proteínas de Plantas/metabolismo , ATPases Translocadoras de Prótons/metabolismo , Transdução de Sinais , Vicia/efeitos dos fármacos , Vicia/efeitos da radiação
12.
J Environ Sci Health B ; 41(6): 781-93, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16893769

RESUMO

This study presents a bioassay procedure, based on the root and shoot growth parameters, for the determination of the herbicide sulfosulfuron (1-(4,6 dimethoxypyrimidin-2-yl)-3-(2-ethylsulfonylimidazo[1,2-a]pyridin-3-ylsulfonil)urea) sensitivity on seven vegetal species. Plant response to sulfosulfuron was calculated with the equations fitted to the root growth data as a function of the logarithm of the herbicide concentration by non-linear regression and was used to calculate the doses for 10, 30 and 50% inhibition of root growth (EC10, EC30 and EC50). The results indicate that the phytotoxic effect of sulfosulfuron in all the species assayed followed the order: flax > maize > onion > vetch > lepidium sativum > tomato > barley. These species showed phytotoxicity at low levels of sulfosulfuron and flax appeared to be the most susceptible species to sulfosulfuron (0.001 mg/L).


Assuntos
Herbicidas/toxicidade , Plantas/efeitos dos fármacos , Pirimidinas/toxicidade , Sulfonamidas/toxicidade , Bioensaio , Relação Dose-Resposta a Droga , Linho/efeitos dos fármacos , Linho/crescimento & desenvolvimento , Hordeum/efeitos dos fármacos , Hordeum/crescimento & desenvolvimento , Lepidium sativum/efeitos dos fármacos , Lepidium sativum/crescimento & desenvolvimento , Lycopersicon esculentum/efeitos dos fármacos , Lycopersicon esculentum/crescimento & desenvolvimento , Cebolas/efeitos dos fármacos , Cebolas/crescimento & desenvolvimento , Desenvolvimento Vegetal , Solubilidade , Especificidade da Espécie , Vicia/efeitos dos fármacos , Vicia/crescimento & desenvolvimento , Zea mays/efeitos dos fármacos , Zea mays/crescimento & desenvolvimento
13.
J Exp Bot ; 54(388): 1771-84, 2003 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12810856

RESUMO

The effects of elevated UV-B radiation on growth, symbiotic function and concentration of metabolites were assessed in purely symbiotic and NO3-fed nodulated plants of Lupinus luteus and Vicia atropurpurea grown outdoors either on tables under supplemental UV-B radiation or in chambers covered with different types of plexi-glass to attenuate solar ultraviolet radiation. Moderately and highly elevated UV-B exposures simulating 15% and 25% ozone depletion as well as sub- ambient UV-B did not alter organ growth, plant total dry matter and N content per plant in both L. luteus and V. atropurpurea. In contrast, elevated UV-B increased (P <0.05) flavonoid and anthocyanin concentrations in roots and leaves of L. luteus, but not of V. atropurpurea. Feeding nodulated plants of L. luteus under elevated UV-B radiation with 2 mM NO3 increased (P <0.05) nodule, leaf and total dry matter, and whole plant N content. With V. atropurpurea, NO3 reduced (P <0.05) nodule activity, root %N and concentrations of flavonoids, anthocyanins in roots and leaves and soluble sugars in roots, in contrast to an observed increase (P <0.05) in nodule dry matter per plant. Similarly, supplying 2 mM NO3 to L. luteus plants exposed to sub-ambient UV-B radiation significantly reduced individual organ growth, plant total biomass, nodule dry matter, nodule %N, and whole plant N content, as well as root concentrations of flavonoids, anthocyanins, soluble sugars, and starch of L. luteus, but not V. atropurpurea plants. These results show no adverse effect of elevated UV-B radiation on growth and symbiotic function of L. luteus and V. atropurpurea plants. However, NO3 supply promoted growth in L. luteus plants exposed to the highly elevated UV-B radiation.


Assuntos
Lupinus/metabolismo , Nitratos/farmacologia , Simbiose/fisiologia , Vicia/metabolismo , Adaptação Fisiológica/efeitos dos fármacos , Adaptação Fisiológica/efeitos da radiação , Antocianinas/metabolismo , Biomassa , Metabolismo dos Carboidratos , Flavonoides/metabolismo , Lupinus/efeitos dos fármacos , Lupinus/efeitos da radiação , Amido/metabolismo , Simbiose/efeitos dos fármacos , Simbiose/efeitos da radiação , Raios Ultravioleta , Vicia/efeitos dos fármacos , Vicia/efeitos da radiação
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