Jove
Visualize
Contáctanos

Videos de Conceptos Relacionados

Meristems and Plant Growth02:36

Meristems and Plant Growth

Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.
Light Acquisition02:16

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
Regulation of Transpiration by Stomata02:04

Regulation of Transpiration by Stomata

During photosynthesis, plants acquire the necessary carbon dioxide and release the produced oxygen back into the atmosphere. Openings in the epidermis of plant leaves is the site of this exchange of gasses. A single opening is called a stoma—derived from the Greek word for “mouth.” Stomata open and close in response to a variety of environmental cues.
Adaptations that Reduce Water Loss01:57

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
Responses to Drought and Flooding02:41

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
Lagrange Multipliers: One Constraint01:29

Lagrange Multipliers: One Constraint

In constrained optimization, the objective is to maximize or minimize a quantity while satisfying a fixed condition. A standard example is a rectangular pen built against a barn wall using 100 meters of fencing. Because the wall provides one side of the enclosure, only the other three sides require fencing. The problem is to find the dimensions that produce the greatest possible area.Let L represent the length parallel to the wall and W the width perpendicular to it. The area of the pen is A =...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

ICSAT overexpression is not sufficient to cause adult T-cell leukemia or multiple myeloma.

Biochemical and biophysical research communications·1999
Same author

Synergism between mild hyperthermia and interferon-beta gene expression.

Cancer letters·1999
Same author

Pseudolesion in segment II of the liver observed on CT during arterial portography caused by the aberrant left gastric venous drainage.

Abdominal imaging·1999
Same author

A toxicokinetic analysis in a patient with acute glufosinate poisoning.

Human & experimental toxicology·1999
Same author

[Generation and analysis of mouse models for leukemia].

[Rinsho ketsueki] The Japanese journal of clinical hematology·1999
Same author

MR diagnosis of adenomyomatosis of the gallbladder and differentiation from gallbladder carcinoma: importance of showing Rokitansky-Aschoff sinuses.

AJR. American journal of roentgenology·1999
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Video Experimental Relacionado

Updated: Jun 30, 2026

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
09:04

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Published on: August 29, 2019

Ángulo de la rama del árbol: maximizando el área de la hoja efectiva.

H Honda, J B Fisher

    Science (New York, N.Y.)
    |February 24, 1978
    PubMed
    Resumen
    Este resumen es generado por máquina.

    Las simulaciones por computadora exploraron patrones de ramificación en Terminalia catappa. Los ángulos óptimos de las ramas para el área máxima de la hoja coinciden estrechamente con las formaciones naturales, lo que sugiere una captura eficiente de la luz.

    Más Videos Relacionados

    Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy
    06:28

    Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy

    Published on: July 29, 2021

    High-Throughput, In-Field Screening of Photosynthetic Efficiency in Crop Plants Using an Autonomous Robot
    07:12

    High-Throughput, In-Field Screening of Photosynthetic Efficiency in Crop Plants Using an Autonomous Robot

    Published on: January 9, 2026

    Videos de Experimentos Relacionados

    Last Updated: Jun 30, 2026

    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands
    09:04

    Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

    Published on: August 29, 2019

    Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy
    06:28

    Field Measurement of Effective Leaf Area Index using Optical Device in Vegetation Canopy

    Published on: July 29, 2021

    High-Throughput, In-Field Screening of Photosynthetic Efficiency in Crop Plants Using an Autonomous Robot
    07:12

    High-Throughput, In-Field Screening of Photosynthetic Efficiency in Crop Plants Using an Autonomous Robot

    Published on: January 9, 2026

    Área de la Ciencia:

    • Morfología vegetal de las plantas.
    • Biología computacional Biología computacional.
    • Modelado ecológico.

    Sus antecedentes:

    • Los patrones de ramificación influyen significativamente en la arquitectura de la planta y en la intercepción de la luz.
    • Comprender el agrupamiento de hojas es crucial para optimizar la eficiencia fotosintética.

    Objetivo del estudio:

    • Para simular patrones de ramificación en Terminalia catappa.
    • Para determinar los ángulos teóricos de las ramas para la máxima superficie efectiva de la hoja.
    • Para comparar ángulos simulados con ángulos naturales.

    Principales métodos:

    • Simulación por computadora de los patrones de ramificación.
    • Variación de los ángulos de las ramas derecha e izquierda.
    • Cálculo de las superficies efectivas de las hojas.

    Principales resultados:

    • Los ángulos de las ramas se variaron sistemáticamente en la simulación.
    • Las superficies efectivas de las hojas se calcularon para cada configuración de ángulo.
    • Se identificaron ángulos óptimos teóricos para el área máxima de la hoja.

    Conclusiones:

    • Los ángulos óptimos de ramificación simulados se alinean estrechamente con los observados en la naturaleza.
    • Los hallazgos sugieren que los patrones de ramificación natural están optimizados para la captura de luz.
    • Este estudio proporciona información sobre las presiones evolutivas que dan forma a la morfología de las plantas.