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  • Open Access

    ARTICLE

    Photosynthetic Gas Exchange and Nitrogen Assimilation in Green Bean Plants Supplied with Two Sources of Silicon

    Julio C. Anchondo-Páez, Esteban Sánchez*, Carlos A. Ramírez-Estrada, Alondra Salcido-Martínez, Erick H. Ochoa-Chaparro

    Phyton-International Journal of Experimental Botany, Vol.93, No.5, pp. 963-980, 2024, DOI:10.32604/phyton.2024.048742

    Abstract Beans contain a wide range of vitamins, proteins, calcium, and zinc which make them an important food source for many countries. To meet the demand for bean production worldwide, large amounts of fertilizers and pesticides are used. However, the cost of production and environmental impact increases. To produce food sustainably, the use of beneficial nutrients such as silicon as a biostimulant has been proposed. However, information about the effect of different sources of silicon on the metabolism of bean plants is scarce. Bean plants cv. Strike were grown in pots for 60 days and the… More >

  • Open Access

    ARTICLE

    Transcriptome Analysis of Molecular Mechanisms Underlying Phenotypic Variation in Phaseolus vulgaris Mutant ‘nts’

    Limin Yin#, Chang Liu#, Zicong Liang, Dajun Liu, Guojun Feng, Zhishan Yan*, Xiaoxu Yang*

    Phyton-International Journal of Experimental Botany, Vol.92, No.11, pp. 2981-2998, 2023, DOI:10.32604/phyton.2023.043151

    Abstract The phenotype of a common bean plant is often closely related to its yield, and the yield of plants with reduced height or poor stem development during growth is low. Mutants serve as an essential gene resource for common bean breeding genetic research. Although model plants and crops are studied to comprehend the molecular mechanisms and genetic basis of plant phenotypes, the molecular mechanism of phenotypic variation in common beans remains underexplored. We here used the mutant ‘nts’ as material for transcriptome sequencing analysis. This mutant was obtained through 60Co-γ irradiation from the common bean variety… More >

  • Open Access

    ARTICLE

    The Physiological Mechanisms Underlying N2-Fixing Common Bean (Phaseolus vulgaris L.) Tolerance to Iron Deficiency

    Abdelmajid Krouma1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.7, pp. 2133-2150, 2023, DOI:10.32604/phyton.2023.029048

    Abstract Iron is an essential element for plants as well as all living organisms, functioning in various physiological and biochemical processes such as photosynthesis, respiration, DNA synthesis, and N2 fixation. In the soil, Fe bioavailability is extremely low, especially under aerobic conditions and at high pH ranges. In contrast, plants with nodules on their roots that fix atmospheric nitrogen need much more iron. To highlight the physiological traits underlying the tolerance of N2-fixing common bean to iron deficiency, two genotypes were hydroponically cultivated in a greenhouse: Coco nain (CN) and Coco blanc (CB). Plants were inoculated with… More >

  • Open Access

    ARTICLE

    Impact of selenium fertilization on the activity of detoxifying enzymes of H2O2 in bean plants

    Hermosillo-Cereceres MA1, E Sánchez1, E Muñoz-Márquez1, A Guevara-Aguilar1, M García-Bañuelos1, D Ojeda-Barrios2

    Phyton-International Journal of Experimental Botany, Vol.83, pp. 347-352, 2014, DOI:10.32604/phyton.2014.83.347

    Abstract Selenium (Se) is an essential element for many organisms, although in high concentrations it may become toxic, leading to the generation of reactive oxygen species (ROS). In this study, bean plants received different application rates of Se (0, 10, 20, 40, 80, and 160 µM) in the form of selenite and selenate to evaluate the activity of the detoxifying enzymes of H2O2. The results indicated that the activity of these enzymes in bean plants depended on the chemical form of Se: selenite at rates of 20 µM or greater diminished biomass and yield, increasing the activity More >

  • Open Access

    ARTICLE

    Advances and perspectives on the gene mapping of root rot resistance in common beans

    Méndez-Aguilar R1, MH Reyes-Valdés2, N Mayek-Pérez3

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 215-226, 2013, DOI:10.32604/phyton.2013.82.215

    Abstract Common bean was originated in México, and it is the most important protein source for millions of Mexicans, mainly those with low economic incomes. Grain yield of this crop is mainly affected by several fungal, bacterial and viral diseases. Among them, there are root rot diseases caused by the genera Macrophomina and Fusarium sp. Currently, some molecular biology tools such as DNA molecular markers are being used successfully to develop genetic maps where QTLs and major molecular markers are located, which are linked to genes that confer resistance to these fungi. The importance of the development… More >

  • Open Access

    ARTICLE

    Biomass production and yield of green beans (Phaseolus vulgaris L.) cv. Strike in response to phosphate fertilization

    Salinas1 R, E Sánchez2, JM Ruíz3, MT Lao1, L Romero3

    Phyton-International Journal of Experimental Botany, Vol.81, pp. 35-39, 2012, DOI:10.32604/phyton.2012.81.035

    Abstract We determined the (1) deficiency, (2) apropriate level and (3) toxiticity of phosphorus on the total biomass production and yield of judía verde (Phaseolus vulgaris L.) cv. ‘Strike’. Studies were conducted in a growth chamber using pots. Phosphorus levels in the nutrient solution were P1: 0.5 mM; P2: 1 mM; P3: 2 mM; P4: 4 mM; P5: 6 mM, and P6: 8 mM. The optimum phosporus concentration was P3. As soil phosphorus concentration increased, concentration of this nutrient also increased in the plant. Leaf, petiole and shoot biomasses were more sensitive to deficiency than to toxicity More >

  • Open Access

    ARTICLE

    Nitrogen metabolism in roots and leaves of green bean plants exposed to different phosphorus doses

    Sánchez E1, G Ávila-Quezada1, AA Gardea1, E Muñoz1, JM Ruiz2, L Romero2

    Phyton-International Journal of Experimental Botany, Vol.78, pp. 11-16, 2009, DOI:10.32604/phyton.2009.78.011

    Abstract The objective of this work was to determine the effect of different P doses on nitrogen assimilation in roots and leaves of green beans plants (Phaseolus vulgaris L. cv. Strike). Phosphorus was applied in the nutrient solution as H3PO4, at the nutrient doses of: P1 = 0.40 mM; P2 = 0.80 mM; P3 = 1.60 mM; P4 = 3.20 mM; P5 = 4.80 mM, and P6 = 6.40 mM P. Our results indicate that both P toxicity and deficiency gave similar responses to N assimilation. Phosphorus and NO3 - interacted on the absorption and translocation processes affecting More >

  • Open Access

    ARTICLE

    Soil drying rate and gas exchange of three Phaseolus vulgaris L. varieties

    Aguirre-Medina1 JF, J Kohashi-Shibata2, J Cadena-Iñiguez2, C Avendaño-Arrazate2

    Phyton-International Journal of Experimental Botany, Vol.77, pp. 31-48, 2008, DOI:10.32604/phyton.2008.77.031

    Abstract Intermittent drought is the main limiting factor for bean production in Mexico. The root system of three bean varieties of different origin and tolerance to water stress was exposed to different drying soil rates. The synthetic varieties were: Pinto Villa (PV, water stress tolerant) and Bayo Madero (BM, water stress susceptible) both of mesoamerican origin and growth habit type III (climbing habit), and ICA Palmar (water stress tolerant) of Andean origin and growth habit type I (shrub). Treatments were three soil drying rates, which were achieved by stopping irrigation and either maintaining or removing the… More >

  • Open Access

    ARTICLE

    Biosynthesis of proline in fruits of green bean plants: deficiency versus toxicity of nitrogen

    Sánchez E1, G Ávila-Quezada1, AA Gardea1, JM Ruiz2, L Romero2

    Phyton-International Journal of Experimental Botany, Vol.76, pp. 143-152, 2007, DOI:10.32604/phyton.2007.76.143

    Abstract The objective of this work was to determine the effect of deficiency versus toxicity of N on biosynthesis of proline in fruits of green bean plants (Phaseolus vulgaris L. cv. Strike). Nitrogen was applied to the nutritive solution in the form of NH4NO3 at 1.5 mM (N1), 3.0 mM (N2), 6.0 mM (N3, optimal level), 12.0 mM (N4), 18.0 mM (N5), and 24.0 mM (N6). Nitrogen deficiency (N1 and N2) was characterized by having lower proline accumulation in pods and seeds, mainly because proline degradation was stimulated by the enzyme proline dehydrogenase. On the other hand, N More >

  • Open Access

    ARTICLE

    Variability in accumulation of free proline on in vitro calli of four bean (Phaseolus vulgaris L.) varieties exposed to salinity and induced moisture stress

    Cárdenas-Avila1*, ML, J Verde-Star1, RK Maiti2, R Foroughbakhch-P1, H Gámez-González1, S Martínez-Lozano1, MA Núñez-González1, G García Díaz1, JL Hernández-Piñero1, MR Morales-Vallarta1

    Phyton-International Journal of Experimental Botany, Vol.75, pp. 103-108, 2006, DOI:10.32604/phyton.2006.75.103

    Abstract This paper reports the genotypic variability in the accumulation of proline on the in vitro calli of bean cultivars exposed to induced water and salinity stress. Remarkable variations in the proline content were found among bean cultivars exposed to both stress factors. More >

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