Ferns, mosses and liverworts as model systems for light‐mediated chloroplast movements. (9th February 2017)

• Record Type: Journal Article
• Authors: Suetsugu, Noriyuki; Higa, Takeshi; Wada, Masamitsu
• Is Part Of: Plant, cell and environment. Volume 40:Number 11(2017)
• Page Start: 2447
• Page End: 2456
• Publication Date: 2017-02-09
• Subjects: land plants -- phototropin; Plant physiology -- Periodicals; Plant cells and tissues -- Periodicals; Plant communities -- Periodicals; 581.105
• DOI: 10.1111/pce.12867
• Languages: English
• ISSNs: 0140-7791

Abstract

Abstract: Light‐induced chloroplast movement is found in most plant species, including algae and land plants. In land plants with multiple small chloroplasts, under weak light conditions, the chloroplasts move towards the light and accumulate on the periclinal cell walls to efficiently perceive light for photosynthesis (the accumulation response). Under strong light conditions, chloroplasts escape from light to avoid photodamage (the avoidance response). In most plant species, blue light induces chloroplast movement, and phototropin receptor kinases are the blue light receptors. Molecular mechanisms for photoreceptors, signal transduction and chloroplast motility systems are being studied using the model plant Arabidopsis thaliana . However, to further understand the molecular mechanisms and evolutionary history of chloroplast movement in green plants, analyses using other plant systems are required. Here, we review recent works on chloroplast movement in green algae, liverwort, mosses and ferns that provide new insights on chloroplast movement. Abstract : Molecular mechanisms of chloroplast photorelocation movement are partially elucidated from the molecular genetic research using Arabidopsis thaliana . However, researches using fern, moss and liverwort not only complement the results by Arabidopsis researches but also provide new insights that never are given by Arabidopsis research.