Hydrogen peroxide mediates high-intensity blue light-induced hypocotyl phototropism of cotton seedlings [PDF]
Stress Biology, 2023 Phototropism is a classic adaptive growth response that helps plants to enhance light capture for photosynthesis. It was shown that hydrogen peroxide (H2O2) participates in the regulation of blue light-induced hypocotyl phototropism; however, the ...
Qian-yi Lv +7 more
doaj +4 more sources
Phototropin phosphorylation of ROOT PHOTOTROPISM 2 and its role in mediating phototropism, leaf positioning, and chloroplast accumulation movement in Arabidopsis [PDF]
Plant Journal, 2023 SUMMARY Directional movements impact the ability of plants to respond and adjust their growth accordingly to the prevailing light environment. The plasma‐membrane associated protein, ROOT PHOTOTROPISM 2 (RPT2) is a key signalling component involved in ...
Thomas Waksman +2 more
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Deetiolation Enhances Phototropism by Modulating NON-PHOTOTROPIC HYPOCOTYL3 Phosphorylation Status [PDF]
Plant Physiology, 2019 Phototropin (phot) receptor kinases play important roles in promoting plant growth by controlling light-capturing processes, such as phototropism. Phototropism is mediated through the action of NON-PHOTOTROPIC HYPOCOTYL3 (NPH3), which is dephosphorylated following phot activation.
Stuart Sullivan +4 more
semanticscholar +5 more sources
Nature Communications, 2021 NPH3 is required for auxin-dependent plant phototropism. Here Reuter et al. show that NPH3 is a plasma membrane-bound phospholipid-binding protein and that in response to blue light, NPH3 is phosphorylated and associates with 14-3-3 proteins which leads ...
Lea Reuter +7 more
doaj +3 more sources
Cell Reports, 2020 Summary: The asymmetric distribution of auxin leads to the bending growth of hypocotyls during gravitropic and phototropic responses, but the signaling events downstream of auxin remain unclear.
Haodong Chen, Xing Wang Deng, Xue Han
exaly +4 more sources
Phototropism in the Marine Red Macroalga Pyropia yezoensis () [PDF]
American Journal of Plant Sciences, 2016 Phototropism is a response to the direction of light that guides growth orientation and determines the shape of plants to optimize photosynthetic activity.
Koji Mikami, Megumú Takahashi
exaly +3 more sources
Shade Promotes Phototropism through Phytochrome B-Controlled Auxin Production
Current Biology, 2016 Phototropism is an asymmetric growth response enabling plants to optimally position their organs. In flowering plants, the phototropin (phot) blue light receptors are essential to detect light gradients.
Jorge José Casal +2 more
exaly +3 more sources
Plant Signaling & Behavior, 2022 The blue light photoreceptors, phototropin 1 (phot1) and phot2, and their signal transducer, NONPHOTOTROPIC HYPOCOTYL3 (NPH3), are activators of the phototropic responses of Arabidopsis hypocotyls.
Taro Kimura, Ken Haga, Tatsuya Sakai
doaj +2 more sources
Protein phosphatase PP2C19 controls hypocotyl phototropism through the phosphorylation modification of NONPHOTOTROPIC HYPOCOTYL3 in Arabidopsis. [PDF]
Plant Cell PhysiolPlants exhibit shoot growth in the direction of the light source to facilitate photosynthesis, known as positive phototropism. In Arabidopsis hypocotyl phototropism, it is thought that a gradient of the signal intensity of the blue light (BL ...
Sakai T, Haga K, Kimura T, Kawaura K.
europepmc +2 more sources
Proper PIN1 distribution is needed for root negative phototropism in Arabidopsis. [PDF]
PLoS ONE, 2014 Plants can be adapted to the changing environments through tropic responses, such as light and gravity. One of them is root negative phototropism, which is needed for root growth and nutrient absorption.
Kun-Xiao Zhang +7 more
doaj +2 more sources