ArticlePlant physiology2001
External Ca(2+) is essential for chloroplast movement induced by mechanical stimulation but not by light stimulation.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 51 citations in OpenAlex.
- Temperature-dependent signal transmission in chloroplast accumulation response.Journal of plant research · 2017Article
- Blue light-dependent changes in loosely bound calcium in Arabidopsis mesophyll cells: an X-ray microanalysis study.Journal of experimental botany · 2016Article
- Article
- Perception of soft mechanical stress in Arabidopsis leaves activates disease resistance.BMC plant biology · 2013Article
- Decoding the role of phosphoinositides in phototropin signaling involved in chloroplast movements.Plant signaling & behavior · 2013Review
- Article
- Rapid and dynamic subcellular reorganization following mechanical stimulation of Arabidopsis epidermal cells mimics responses to fungal and oomycete attack.BMC plant biology · 2008Article
- Mechanosensitive ion channels in chara: influence of water channel inhibitors, HgCl2 and ZnCl2, on generation of receptor potential.The Journal of membrane biology · 2008Article
- Light- and dark-induced action potentials in Physcomitrella patens.Plant signaling & behavior · 2008Article
- The sliding theory of cytoplasmic streaming: fifty years of progress.Journal of plant research · 2007Review
- Effects of hypergravity conditions on elongation growth and lignin formation in the inflorescence stem of Arabidopsis thaliana.Journal of plant research · 2006Article
- An auxilin-like J-domain protein, JAC1, regulates phototropin-mediated chloroplast movement in Arabidopsis.Plant physiology · 2005Article
- A plant-specific protein essential for blue-light-induced chloroplast movements.Plant physiology · 2005Article
- Mechano-sensitive orientation of cortical microtubules during gravitropism in azuki bean epicotyls.Journal of plant research · 2005Article
- Evidence of a novel cell signaling role for extracellular adenosine triphosphates and diphosphates in Arabidopsis.The Plant cell · 2004Article
- Phot1 and phot2 mediate blue light-induced transient increases in cytosolic Ca2+ differently in Arabidopsis leaves.Proceedings of the National Academy of Sciences of the United States of America · 2003Article
- Chloroplast movement: dissection of events downstream of photo- and mechano-perception.Journal of plant research · 2003Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the fern Adiantum capillus-veneris, chloroplast movement is induced by mechanical stimulation as well as by light stimulation. Directional movement of both types depends on an actin-based motile system. To investigate the physiological relationship between mechanical and light signaling in the regulation of chloroplast movement, we examined the mechano-response of chloroplasts whose motility had been already restricted after photo-relocation. Chloroplast mechano-avoidance movement was induced under all of the photo-relocation conditions tested, indicating that mechano-specific signals generated by mechanical stimulation dominate over the light signals and reactivate the motility of chloroplasts. When the effects of external Ca(2+) on the induction of mechano- and light responses were examined, strikingly different requirements of external Ca(2+) were found for each. In medium without Ca(2+), the mechano-response was suppressed but no effects were observed on photo-response. Mechano-relocation movement of chloroplasts was inhibited by 100 microM lanthanum (La(3+)), a plasma membrane calcium channel blocker, and by 10 microM gadolinium (Gd(3+)), a stretch-activated channel blocker. However, the same concentrations of these drugs did not affect the photo-relocation movement at all. These results suggest that the influx of external Ca(2+) is crucial for the early signaling step of chloroplast mechano-relocation but not for that of photo-relocation. This is the first report showing the separation of signaling pathways in mechano- and photo-relocation of chloroplasts.
Indexed as
Identifiers
11598224PMC125085W2121341691What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.