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In biology, phototropism is the growth of an organism in response to a light stimulus. Phototropism is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light contain a hormone called auxin that reacts when phototropism occurs.
Jan 30, 2014 · Phototropism, or the differential cell elongation exhibited by a plant organ in response to directional blue light, provides the plant with a means to optimize photosynthetic light capture in the aerial portion and water and nutrient acquisition in the roots.
Jul 31, 2022 · 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.
Phototropism is the ability of the plant to re-orient the shoot growth towards a direction of light source. Phototropism is important to plants as it enhances the ability of plants to optimize their photosynthetic capacity. As discussed above, phototropic response is exclusively controlled by phots.
May 4, 2015 · In flowering plants, phototropism is induced by UV/blue wavelengths (290–500 nm) and remarkably, this phototropic response is evoked over a large range of light intensities ranging from minute amounts of light to the blue light intensity present on a sunny day.
May 4, 2015 · In flowering plants, phototropism is induced by UV/blue wavelengths (290–500 nm) and remarkably, this phototropic response is evoked over a large range of light intensities ranging from minute amounts of light to the blue light intensity present on a sunny day.
Sep 28, 2018 · Though a seemingly simple differential cell elongation response within a responding tissue that results in organ curvature, phototropism is regulated through a complex set of signal perception and transduction events that move from the plasma membrane to the nucleus.
