In the growth condition(s) of plants, numerous secondary metabolites (SMs) are produced by them to serve variety of cellular functions essential for physiological processes, and recent increasing evidences have implicated stress and defense response signaling in their production. The type and concentrati...
ABSTRACT To mitigate the deleterious effects of abiotic stress, the use of plant growth-promoting bacteria along with diazotrophic bacteria has been increasing. The objectives of this study were to investigate the key enzymes related to nitrogen and carbon metabolism in the biological nitrogen fixation p...
Actinobacteria/fisiología,
Inoculantes Agrícolas/fisiología,
Aminoácidos/metabolismo,
Bradyrhizobium/fisiología,
Carbono/metabolismo,
Nitrógeno/metabolismo,
Fijación del Nitrógeno,
Raíces de Plantas/crecimiento & desarrollo,
Raíces de Plantas/metabolismo,
Raíces de Plantas/microbiología,
Estrés Salino,
Cloruro de Sodio/análisis,
Cloruro de Sodio/metabolismo,
Microbiología del Suelo,
Vigna/crecimiento & desarrollo,
Vigna/metabolismo,
Vigna/microbiología
Abstract Typha domingensis (cattail) is a native macrophyte known by its capacity to tolerate several heavy metals effects and the potential use for phytoremediation. However, in despite that cadmium (Cd) is one of the most toxic pollutants; its effects in T. domingensis biology remain uninvestigated. Th...
Biodegradación Ambiental,
Biomasa,
Cadmio/metabolismo,
Cadmio/toxicidad,
Clorofila/química,
Clorofila/metabolismo,
Relación Dosis-Respuesta a Droga,
Fotosíntesis/fisiología,
Hojas de la Planta/química,
Hojas de la Planta/metabolismo,
Raíces de Plantas/química,
Raíces de Plantas/metabolismo,
Typhaceae/crecimiento & desarrollo,
Typhaceae/metabolismo
Abstract Bacterial endophytes are considered to have a beneficial effect on host plants, improving their growth by different mechanisms. The objective of this study was to investigate the capacity of four endophytic Bacillus strains to solubilize iron phosphate (Fe-P), produce siderophores and indole-ace...
Bacillus/genética,
Bacillus/metabolismo,
Endófitos/genética,
Endófitos/metabolismo,
Ácidos Indolacéticos/metabolismo,
Hierro/metabolismo,
Nutrientes/metabolismo,
Pennisetum/crecimiento & desarrollo,
Pennisetum/metabolismo,
Pennisetum/microbiología,
Fosfatos/análisis,
Fosfatos/metabolismo,
Raíces de Plantas/crecimiento & desarrollo,
Raíces de Plantas/metabolismo,
Raíces de Plantas/microbiología,
Sideróforos/metabolismo
Abstract Mangrove is an important ecosystem in the world. Mangrove ecosystems have a large capacity in retaining heavy metals, and now they are usually considered as sinks for heavy metals. However, the mechanism of why the soil of mangrove ecosystems can retain heavy metal is not certain. In this resear...
Cobre/análisis,
Cobre/metabolismo,
Endófitos/genética,
Endófitos/aislamiento & purificación,
Endófitos/metabolismo,
Hypocreales/genética,
Hypocreales/aislamiento & purificación,
Hypocreales/metabolismo,
Raíces de Plantas/metabolismo,
Raíces de Plantas/microbiología,
Rhizophoraceae/metabolismo,
Rhizophoraceae/microbiología,
Suelo/química,
Microbiología del Suelo
FARIAS, JÚLIA G;
BERNARDY, KATIELI;
SCHWALBERT, RAÍSSA;
DEL FRARI, BIANCA K;
MEHARG, ANDREW;
CAREY, MANUS;
MARQUES, ANDERSON C R;
SIGNES-PASTOR, ANTONIO;
SAUSEN, DARLENE;
SCHORR, MÁRCIO R W;
TAVARES, MIRIAN S;
NICOLOSO, FERNANDO T.
ABSTRACT A hydroponic experiment was carried out to investigate the effect of phosphorus (P) nutrition on arsenic (As) uptake and translocation within the seedlings of rice cultivars. The experiment occurred in three stages: I 5 days of acclimatization (nutritive solution); II 10 days under P (0.0 and 0....
Arsénico/análisis,
Arsénico/farmacocinética,
Transporte Biológico,
Biomasa,
Fertilizantes,
Hidroponía/métodos,
Oryza/efectos de los fármacos,
Oryza/metabolismo,
Fósforo/análisis,
Fósforo/farmacología,
Raíces de Plantas/efectos de los fármacos,
Raíces de Plantas/metabolismo,
Valores de Referencia,
Reproducibilidad de los Resultados,
Semillas/efectos de los fármacos,
Semillas/metabolismo,
Factores de Tiempo
Background: Ginsenoside is the most important secondary metabolite in ginseng. Natural sources of wild ginseng have been overexploited. Although root culture can reduce the length of the growth cycle of ginseng, the number of species of ginsenosides is reduced and their contents are lower in the adventit...
Panax/metabolismo,
Raíces de Plantas/metabolismo,
Ginsenósidos/metabolismo,
Panax/crecimiento & desarrollo,
beta-Glucosidasa/metabolismo,
Reactores Biológicos,
Fermentación,
Ginsenósidos/aislamiento & purificación,
Panax/química,
Raíces de Plantas/química,
Cromatografía Líquida de Alta Presión,
Penicillium,
Biotransformación
BACKGROUND: Salinity is a serious factor limiting the productivity of agricultural plants. One of the potential problems for plants growing under saline conditions is the inability to up take enough K+. The addition of K+ may considerably improve the salt tolerance of plants grown under salinity. It is a...
Phoeniceae/fisiología,
Potasio/metabolismo,
Sodio/metabolismo,
Salinidad,
Productos Agrícolas,
Compartimento Celular/fisiología,
Phoeniceae/crecimiento & desarrollo,
Hojas de la Planta/metabolismo,
Raíces de Plantas/metabolismo,
Brotes de la Planta/metabolismo,
Sacarosa/farmacología,
Absorción Fisicoquímica,
Técnicas In Vitro
BACKGROUND: Rootstocks play an essential role to determining orchard performance of fruit trees. Pyrus communisand Cydonia oblonga are widely used rootstocks for European pear cultivars. The lack of rootstocks adapted to different soil conditions and different grafted cultivars is widely acknowledged in ...
Producción de Cultivos/métodos,
Frutas/metabolismo,
Clima Desértico,
Hojas de la Planta/química,
Raíces de Plantas/metabolismo,
Pyrus/química,
Pyrus/clasificación,
Pyrus/crecimiento & desarrollo,
Boro/análisis,
Calcio/análisis,
Cobre/análisis,
Hierro/análisis,
Magnesio/análisis,
Manganeso/análisis,
Nitrógeno/análisis,
Fósforo/análisis,
Potasio/análisis,
Rosaceae/fisiología,
Plantones/crecimiento & desarrollo,
Plantones/fisiología,
Zinc/análisis,
Lluvia,
Suelo,
Temperatura,
Turquía
Raízes de cinco cultivares de mandioca (Manihot esculenta Crantz), provenientes do Instituto Agronômico de Campinas, a saber: Branca de Santa Catarina (SRT-59), Pioneira (SRT-13l0), Ouro do Vale (SRT-797), IAC-576-70 e IAC 289-70. As análises visaram a identificação dos principais carotenóides pres...
