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     researchgate.net

     • The red/far-red and violet-blue regions of the visible light spectrum trigger structural development in plants. Sensory photoreceptors absorb light in these particular regions of the visible light spectrum because of the quality of light available in the daylight spectrum.
     courses.lumenlearning.com/wm-biology2/chapter/plant-responses-to-light/

     Plant Responses to Light | Biology for Majors II - Lumen Learning

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   Why do plants absorb light in the Red/far-red and violet-blue regions?

   • The red/far-red and violet-blue regions of the visible light spectrum trigger structural development in plants. Sensory photoreceptors absorb light in these particular regions of the visible light spectrum because of the quality of light available in the daylight spectrum.

   11.13: Plant Responses to Light - Biology LibreTexts

   bio.libretexts.org/Courses/Lumen_Learning/Biology_for_Majors_II_(Lumen)/11:_Module_8-_Plant_Structure_and_Function/11.13:_Plant_Responses_to_Light

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   Does chlorophyll absorb red light?

   • Because chlorophyll absorbs strongly in the red region of the visible spectrum, but not in the far-red region, any plant in the shade of another plant on the forest floor will be exposed to red-depleted, far-red-enriched light.

   Plant Responses to Light | Biology for Majors II - Lumen Learning

   courses.lumenlearning.com/wm-biology2/chapter/plant-responses-to-light/

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   Why does chlorophyll absorb far-red light?

   • Because chlorophyll absorbs strongly in the red region of the visible spectrum, but not in the far-red region, any plant in the shade of another plant on the forest floor will be exposed to red-depleted, far-red-enriched light. The preponderance of far-red light converts phytochrome in the shaded leaves to the P r (inactive) form, slowing growth.

   11.13: Plant Responses to Light - Biology LibreTexts

   bio.libretexts.org/Courses/Lumen_Learning/Biology_for_Majors_II_(Lumen)/11:_Module_8-_Plant_Structure_and_Function/11.13:_Plant_Responses_to_Light

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   How do plants respond to light?

   • The response of plants to light is mediated by different photoreceptors, which are comprised of a protein covalently bonded to a light-absorbing pigment called a chromophore. Together, the two are called a chromoprotein. The red/far-red and violet-blue regions of the visible light spectrum trigger structural development in plants.

   11.13: Plant Responses to Light - Biology LibreTexts

   bio.libretexts.org/Courses/Lumen_Learning/Biology_for_Majors_II_(Lumen)/11:_Module_8-_Plant_Structure_and_Function/11.13:_Plant_Responses_to_Light

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   How does light affect plants?

   • As light filters through the canopy and the blue and red wavelengths are absorbed, the spectrum shifts to the far-red end, shifting the plant community to those plants better adapted to respond to far-red light. Blue-light receptors allow plants to gauge the direction and abundance of sunlight, which is rich in blue–green emissions.

   11.13: Plant Responses to Light - Biology LibreTexts

   bio.libretexts.org/Courses/Lumen_Learning/Biology_for_Majors_II_(Lumen)/11:_Module_8-_Plant_Structure_and_Function/11.13:_Plant_Responses_to_Light

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   How does red light affect plant growth?

   • The preponderance of far-red light converts phytochrome in the shaded leaves to the P r (inactive) form, slowing growth. The nearest non-shaded (or even less-shaded) areas on the forest floor have more red light; leaves exposed to these areas sense the red light, which activates the P fr form and induces growth.

   11.13: Plant Responses to Light - Biology LibreTexts

   bio.libretexts.org/Courses/Lumen_Learning/Biology_for_Majors_II_(Lumen)/11:_Module_8-_Plant_Structure_and_Function/11.13:_Plant_Responses_to_Light

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3. bio.libretexts.org › Bookshelves › Introductory_and8.5: The Light-Dependent Reactions of Photosynthesis ...

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   Plant pigment molecules absorb only light in the wavelength range of 700 nm to 400 nm; this range is referred to as photosynthetically-active radiation. Violet and blue have the shortest wavelengths and the most energy, whereas red has the longest wavelengths and carries the least amount of energy.

4. bio.libretexts.org › Courses › Lumen_Learning11.13: Plant Responses to Light - Biology LibreTexts

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   Jul 31, 2022 · The red/far-red and violet-blue regions of the visible light spectrum trigger structural development in plants. Sensory photoreceptors absorb light in these particular regions of the visible light spectrum because of the quality of light available in the daylight spectrum.

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6. www.nature.com › articles › s41477/020/0718-zFar-red absorption and light-use efficiency trade-offs in ...

   www.nature.com › articles › s41477/020/0718-z

   Jul 13, 2020 · Plants and cyanobacteria use the chlorophylls embedded in their photosystems to absorb photons and perform charge separation, the first step of converting solar energy to chemical energy.

   • Author: Vincenzo Mascoli, Luca Bersanini, Roberta Croce

   • Publish Year: 2020

7. www.sciencedirect.com › science › articleFar-red light: A regulator of plant morphology and ...

   www.sciencedirect.com › science › article

   Apr 1, 2022 · Far-red light can also regulate leaf angle and increase plant height and leaf area, via expression of associated genes, to capture more light energy. Thus, far-red light regulates plant morphology and photosynthetic capacity.

   • Author: Tingting Tan, Shenglan Li, Yuanfang Fan, Zhonglin Wang, Muhammad Ali Raza, Iram Shafiq, Beibei Wang,...

   • Publish Year: 2021

8. Videos

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     Photomorphogenesis . Phytochrome response on RED and FAR RED Light . Plant Physiology

     1 Jun 2023

     1.7K views

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     27:59

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     Far-red: The Forgotten Photons

     29 Oct 2019

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     12:28

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     Experiment: Red Light vs Blue Light -How Spectrums Affect Plant Growth- LED vs CFL

     12 Feb 2017

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9. www.greenhousemag.com › article › red-and--far-redRed and Far-red light: A tale of two spectrums - Greenhouse ...

   www.greenhousemag.com › article › red-and--far-red

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   Mar 17, 2022 · One of the most important plant physiological effects of red and far-red light on plants is their effect on stem elongation. When plants are growing in conditions with a higher proportion of far-red light, it promotes stem or internode elongation characterized as the “shade avoidance response.”

10. academic.oup.com › aob › advance-articleFar-red light effects on plant photosynthesis: from short ...

    academic.oup.com › aob › advance-article

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    Jul 1, 2024 · Effects of continuous or end-of-day far-red light on tomato plant growth, morphology, light absorption, and fruit production.

11. courses.lumenlearning.com › wm-biology2 › chapterPlant Responses to Light | Biology for Majors II - Lumen Learning

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    The red/far-red and violet-blue regions of the visible light spectrum trigger structural development in plants. Sensory photoreceptors absorb light in these particular regions of the visible light spectrum because of the quality of light available in the daylight spectrum.