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Videos de Conceptos Relacionados

Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
Transgenic Plants02:50

Transgenic Plants

Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
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Plant tissue culture is widely used in both primary and applied science. Applications range from plant development studies to functional gene studies, crop improvement, commercial micropropagation, virus elimination, and conservation of rare species.
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.

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Video Experimental Relacionado

Updated: Jul 12, 2026

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling
07:18

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling

Published on: May 21, 2020

La transferencia genética en los cereales.

E C Cocking, M R Davey

    Science (New York, N.Y.)
    |June 5, 1987
    PubMed
    Resumen
    Este resumen es generado por máquina.

    La ingeniería genética vegetal ahora utiliza la captación directa de ADN en protoplastos para cereales como el arroz, el trigo y el maíz. Este método logra eficiencias de transformación comparables a las técnicas más antiguas, lo que permite una regeneración eficiente de la planta.

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    Área de la Ciencia:

    • La biotecnología vegetal y la biotecnología vegetal.
    • Biología Molecular Biología Molecular
    • Genética La genética.

    Sus antecedentes:

    • La transferencia genética tradicional de las plantas se basaba en la hibridación sexual.
    • La manipulación genética vegetal ahora incluye ADN recombinante y fusión de protoplastos.
    • Agrobacterium tumefaciens es eficaz para las plantas dicotíledonas pero no para los cereales.

    Objetivo del estudio:

    • Explorar métodos alternativos de transferencia génica para los cereales.
    • Establecer una transformación genética eficiente en los cultivos de cereales.
    • Para avanzar en la tecnología de ADN recombinante en la ciencia de las plantas.

    Principales métodos:

    • Absorción directa del ADN plasmítico en los protoplastos de los cereales (arroz, trigo, maíz).
    • Utilizando la tecnología de fusión de protoplastos.
    • Desarrollar procedimientos mejorados de regeneración de plantas a partir de protoplastos.

    Principales resultados:

    • Se logró una transferencia genética exitosa en células de arroz, trigo y maíz.
    • Las eficiencias de transformación en los cereales se están volviendo comparables a las de los dicotiledones.
    • Ahora es posible la regeneración eficiente de plantas enteras a partir de protoplastos de arroz.

    Conclusiones:

    • La captación directa de ADN en los protoplastos de cereales es un método viable de transferencia de genes.
    • Los avances en la regeneración de protoplastos son cruciales para la transformación de los cereales.
    • La transferencia de genes en cereales está avanzando significativamente con la tecnología de ADN recombinante.