scholarly journals Chloroplast relocation movement in the liverwort Apopellia endiviifolia

2021 ◽  
Author(s):  
Lee‐Kien Yong ◽  
Shoko Tsuboyama ◽  
Rika Kitamura ◽  
Takeshi Kurokura ◽  
Tomohiro Suzuki ◽  
...  
Keyword(s):  
Chloroplast Relocation

scholarly journals Arabidopsis nph1 and npl1: Blue light receptors that mediate both phototropism and chloroplast relocation

2001 ◽  
Vol 98 (12) ◽  
pp. 6969-6974 ◽  
Author(s):  
T. Sakai ◽  
T. Kagawa ◽  
M. Kasahara ◽  
T. E. Swartz ◽  
J. M. Christie ◽  
...  
Keyword(s):  
Blue Light ◽  
Chloroplast Relocation

scholarly journals Cold-induced switch in direction of chloroplast relocation occurs independently of changes in endogenous phototropin expression

2019 ◽  
Author(s):  
Yuta Fujii ◽  
Yuka Ogasawara ◽  
Yamato Takahashi ◽  
Momoko Sakata ◽  
Saori Tamura ◽  
...  
Keyword(s):  
Light Intensity ◽  
Avoidance Response ◽  
Cold Treatment ◽  
Marchantia Polymorpha ◽  
Strong Light ◽  
Weak Light ◽  
Chloroplast Relocation ◽  
Induced Changes ◽  
Light Avoidance ◽  
The Relationship

AbstractWhen exposed to fluctuating light intensity, chloroplasts move towards weak light (accumulation response), and away from strong light (avoidance response). In addition, cold treatment (5°C) induces the avoidance response even under weak light conditions (cold-avoidance response). These three responses are mediated by the phototropin (phot), which is a blue-light photoreceptor and has also been found to act as a thermosensory protein that perceives temperature variation. Our previous report indicated that cold-induced changes in phot biochemical activity initiate the cold-avoidance response. In this study, we further explored the induction mechanism of the cold-avoidance response in the liverwort Marchantia polymorpha and examined the relationship between changes in the amount of phot and the induction of the cold-avoidance response. The switch between the accumulation and avoidance responses occurs at a so-called ‘transitional’ light intensity. Our physiological experiments revealed that a cold-mediated decrease in the transitional light intensity leads to the induction of the cold-avoidance response. While artificial overexpression of phot decreased the transitional light intensity as much as cold treatment did, the amount of endogenous phot remained unchanged by cold treatment in wild-type M. polymorpha. Taken together, these findings show that the cold-avoidance response is initiated by a cold-mediated reduction of the transitional light intensity, independent of the amount of endogenous phot. This study provides a clue to understand the mechanism underlying the switch in direction of chloroplast relocation in response to light and temperature.

Phototropin-related NPL1 controls chloroplast relocation induced by blue light

Nature ◽  
2001 ◽  
Vol 410 (6831) ◽  
pp. 952-954 ◽  
Author(s):  
Jose A. Jarillo ◽  
Halina Gabrys ◽  
Juan Capel ◽  
Jose M. Alonso ◽  
Joseph R. Ecker ◽  
...  
Keyword(s):  
Blue Light ◽  
Chloroplast Relocation

scholarly journals Blue Light-Induced Chloroplast Relocation

2002 ◽  
Vol 43 (4) ◽  
pp. 367-371 ◽  
Author(s):  
Takatoshi Kagawa ◽  
Masamitsu Wada
Keyword(s):  
Blue Light ◽  
Chloroplast Relocation

scholarly journals The cold-induced switch in direction of chloroplast relocation occurs independently of changes in endogenous phototropin levels

PLoS ONE ◽  
2020 ◽  
Vol 15 (5) ◽  
pp. e0233302 ◽  
Author(s):  
Yuta Fujii ◽  
Yuka Ogasawara ◽  
Yamato Takahashi ◽  
Momoko Sakata ◽  
Minoru Noguchi ◽  
...  
Keyword(s):  
Chloroplast Relocation
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