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Related Concept Videos

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.
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.

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Related Experiment Video

Updated: Jul 5, 2026

Forced Flowering in Mandarin Trees under Phytotron Conditions
08:42

Forced Flowering in Mandarin Trees under Phytotron Conditions

Published on: March 6, 2019

Interpreting the decrease in leaf photosynthesis during flowering in mango.

Laurent Urban1, Loïc Jegouzo, Gaëlle Damour

  • 1INRA, Unité de Recherche GEQA, 20230 San Giuliano, France. urban@corse.inra.fr

Tree Physiology
|May 3, 2008
PubMed
Summary
This summary is machine-generated.

Flowering reduces mango leaf net photosynthesis (A(net)) due to lower stomatal conductance, mesophyll conductance (g(m)), and photosynthetic capacity. These changes are reversible once fruits are set.

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Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves
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Last Updated: Jul 5, 2026

Forced Flowering in Mandarin Trees under Phytotron Conditions
08:42

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Published on: March 6, 2019

Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves
08:31

Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves

Published on: December 2, 2016

Area of Science:

  • Plant Physiology
  • Photosynthesis Research
  • Agricultural Science

Background:

  • Limited understanding of how flowering impacts leaf photosynthesis in fruit trees.
  • Observed lower net photosynthesis (A(net)) in Mangifera indica L. leaves near inflorescences compared to vegetative shoots.

Purpose of the Study:

  • Investigate the physiological reasons for reduced net photosynthesis (A(net)) in mango leaves adjacent to flowering structures.
  • Quantify the impact of flowering on gas exchange, nitrogen, carbohydrate concentrations, and photosynthetic capacity.

Main Methods:

  • Measured leaf gas exchange, chlorophyll a fluorescence, nitrogen, and carbohydrate concentrations.
  • Analyzed leaves from vegetative and floral terminals of Mangifera indica L. trees.
  • Utilized models to estimate photosynthetic electron fluxes and mesophyll conductance (g(m)).

Main Results:

  • Net photosynthesis (A(net)) was significantly lower in leaves near inflorescences.
  • This reduction was linked to decreased stomatal conductance, mesophyll conductance (g(m)), and photosynthetic capacity (J(max)).
  • Lower J(max) correlated with reduced foliar nitrogen and potentially altered sink activity (hexose:sucrose ratio).

Conclusions:

  • Flowering in Mangifera indica L. reduces leaf net photosynthesis (A(net)) through impaired stomatal and mesophyll conductance and decreased photosynthetic capacity.
  • These photosynthetic limitations appear linked to nitrogen status and sink demand.
  • The observed reductions in photosynthesis are reversible, as indicated by intermediate parameters in leaves near developing fruits.