Chloroplast unusual positioning1

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August undefined, 2024

WebThe action spectra for phototropism, stomatal opening, and the chloroplast accumulation and avoidance responses are all similar (A). -> They show a band with one major and two minor absorption peaks ("three finger" pattern) in the blue region of the spectrum and a broad absorption band in the UV-A. These spectral properties are characteristic of WebUnder blue light, plant chloroplasts relocate to different areas of the cell. The photoreceptor phototropin2 (phot2) mediates the chloroplast movement mechanism under excess blue …

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WebThus, CHUP1 localization on chloroplasts, with the N terminus inserted into the chloroplast outer envelope and the C terminus facing the cytosol, is essential for CHUP1 function, … WebThe fusion protein was targeted to envelope membranes of chloroplasts in mesophyll cells, suggesting that CHUP1 may localize in chloroplasts. A glutathione S-transferase fusion … mcsf3 framework

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Webwww.ncbi.nlm.nih.gov WebIn angiosperms and many other groups of plants, chloroplast avoidance movement has been identified to be a strong blue light (BL)-dependent process being mediated by actin filaments wherein phototropins are identified as the photoreceptor involved. WebJan 9, 2024 · Outer envelope protein, chloroplast unusual positioning1 (CHUP1), anchors chloroplasts to the host-pathogen interface. Stromules are induced during infection in … life is a wonderful thing song

Short actin-based mechanism for light-directed chloroplast …

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WebMar 30, 2015 · Physiological studies of chloroplasts, mitochondria and peroxisomes show that these organelles actively communicate during photorespiration, a process by which by-products produced by photosynthesis are salvaged. Nevertheless, the mechanisms enabling… View on Nature ncbi.nlm.nih.gov Save to Library Create Alert Cite 98 … WebChloroplasts change their intracellu-lar positions to optimize photosynthetic activity in response to ambient light conditions. Through screening of mutants of Arabidopsis … mcs fabricatingWebSep 1, 2013 · Recently various factors involved in chloroplast movement, such as cp-actin filaments and CHUP1, could be traced in Arabidopsis transgenic lines with fluorescent protein tags under a confocal laser scanning microscope (CLSM) and/or a total internal reflection fluorescence microscope (TIRFM). life is a work in progress

"WebJun 16, 2016 · The proteins CHLOROPLAST UNUSUAL POSITIONING 1 (CHUP1), KINESIN-LIKE PROTEIN FOR ACTIN-BASED CHLOROPLAST MOVEMENT 1 (KAC1) and KAC2 are required for the generation and/or maintenance of cp … " - Chloroplast unusual positioning1

Chloroplast unusual positioning1

WebJul 22, 2024 · Chloroplasts do move in a cell. … They jostle and slide and scoot around the cell often sticking near the edges of the cell but sometimes seeming to fill the cell entirely with constant motion. The motion is common to the interior of cells and is called cyclonic or cytoplasmic streaming.Jul 11 2024 WebJan 28, 2024 · Several cytoplasmic components that link photoreceptors to the cytoskeleton have been identified for their role in the chloroplast movement response, including KAC (kinesin-like protein for actin-based chloroplast movement), THRUMIN1, and CHUP1 (chloroplast unusual positioning1) in P. patens and Arabidopsis , but not for light …

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WebJun 16, 2016 · Two protein families, CHLOROPLAST UNUSUAL POSITIONING1 (CHUP1) and KINESIN-LIKE PROTEIN FOR ACTIN-BASED CHLOROPLAST MOVEMENT (KAC), are indispensable for the polymerization and/or maintenance of cp-actin filaments and have conserved functions in land plants [ 20 – 25 ].

WebAug 4, 2009 · Cp-actin filaments emerge from the chloroplast edge and exhibit rapid turnover. The presence of cp-actin filaments depends on an actin-binding protein, chloroplast unusual positioning1 (CHUP1), localized on the chloroplast envelope. chup1 mutant lacked cp-actin filaments but showed normal cytoplasmic actin filaments. WebThe intracellular position of chloroplasts changes due to a changing light regime. Chloroplast avoidance and accumulation response under high and low light, …

WebAug 4, 2009 · When irradiated with blue light to induce chloroplast movement, cp-actin filaments relocalize to the leading edge of chloroplasts before and during … WebSep 1, 2013 · Chloroplast Unusual Positioning1 (CHUP1) is the most important protein plausibly involved in cp-actin polymerization. CHUP1 is localized on the chloroplast …

WebApr 3, 2024 · Chloroplasts move by chloroplast actin (cp-actin) filaments that must be polymerized by Chloroplast Unusual Positioning1 (CHUP1) at the front side of moving chloroplast. What is cyclosis movement? The streaming movement of the cytoplasm inside the cell is known as cyclosis. It is also known as protoplasmic streaming, a circular …

WebJan 1, 2004 · CHUP1 is a unique gene identified that encodes a protein required for organellar positioning and movement in plant cells. Distribution of Chloroplasts in the Mesophyll Cells of Wild-Type and... life is a waterfallWebJul 18, 2024 · Seed plants contain two phots (phot1 and phot2) that have important roles in regulating leaf positioning and expansion, chloroplast photorelocation movement, stomatal opening, and phototropism, all of which serve to optimize photosynthetic efficiency ( Christie et … life is a wonderful waste of timeWebJan 31, 2024 · From a structure-function perspective, CHUP1 currently is one of the best-understood proteins engaged in chloroplast relocation and positioning [ 57 ]. CHUP1 localises to the chloroplast envelope and to do this requires the first 25 N-terminal residues, which form a hydrophobic domain. life is a waste of time quote