ArticleFrontiers in plant science2021
Phototropin 1 Mediates High-Intensity Blue Light-Induced Chloroplast Accumulation Response in a Root Phototropism 2-Dependent Manner in
Article in Frontiers in plant science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Effects of blue light and UV-B radiation during growth on photochemical yields during exposure to bright sunlight.BMC plant biology · 2026Article
- Genome-Wide Identification of the AGC Kinase Family in Tetraploid Potato (Plants (Basel, Switzerland) · 2025Article
- Article
- Deciphering UV-C-induced transcriptomic shifts in tomato: defence mechanisms, stress responses, and photoreceptor regulation.Plant cell reports · 2025Article
- Genome-wide analysis of SET domain genes and the function of GhSDG51 during salt stress in upland cotton (Gossypium hirsutum L.).BMC plant biology · 2023Article
- Genetic dissection of maize (Zea mays L.) chlorophyll content using multi-locus genome-wide association studies.BMC genomics · 2023Article
- The action of enhancing weak light capture via phototropic growth and chloroplast movement in plants.Stress biology · 2022Review
- Genome-Wide Identification of the AGC Protein Kinase Gene Family Related to Photosynthesis in Rice (International journal of molecular sciences · 2022Article
- LsNRL4 enhances photosynthesis and decreases leaf angles in lettuce.Plant biotechnology journal · 2022Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Phototropins, namely, phototropin 1 (phot1) and phototropin 2 (phot2), mediate chloroplast movement to maximize photosynthetic efficiency and prevent photodamage in plants. Phot1 primarily functions in chloroplast accumulation process, whereas phot2 mediates both chloroplast avoidance and accumulation responses. The avoidance response of phot2-mediated chloroplasts under high-intensity blue light (HBL) limited the understanding of the function of phot1 in the chloroplast accumulation process at the HBL condition. In this study, we showed that the phot2 mutant exhibits a chloroplast accumulation response under HBL, which is defective when the root phototropism 2 (RPT2) gene is mutated in the phot2 background, mimicking the phenotype of the phot1 phot2 double mutant. A further analysis revealed that the expression of RPT2 was induced by HBL and the overexpression of RPT2 could partially enhance the chloroplast accumulation response under HBL. These results confirmed that RPT2 also participates in regulating the phot1-mediated chloroplast accumulation response under HBL. In contrast, RPT2 functions redundantly with neural retina leucine zipper (NRL) protein for chloroplast movement 1 (NCH1) under low-light irradiation. In addition, no chloroplast accumulation response was detected in the
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