ArticleJournal of experimental botany2008
Arabidopsis thaliana leaves with altered chloroplast numbers and chloroplast movement exhibit impaired adjustments to both low and high light.
Article in Journal of experimental botany, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Optimal disk packing of chloroplasts in plant cells.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Chloroplasts in plant cells show active glassy behavior under low-light conditions.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- What can hornworts teach us?Frontiers in plant science · 2023Review
- Estimating the number of protein molecules in a plant cell: protein and amino acid homeostasis during drought.Plant physiology · 2021Article
- Phototropin 1 and 2 Influence Photosynthesis, UV-C Induced Photooxidative Stress Responses, and Cell Death.Cells · 2021Article
- The hornworts: morphology, evolution and development.The New phytologist · 2021Review
- Ectopic overexpression of a cotton plastidial NaPlanta · 2020Article
- Allelic Variation in the Chloroplast Division GenePlant physiology · 2019Article
- Linking chloroplast relocation to different responses of photosynthesis to blue and red radiation in low and high light-acclimated leaves of Arabidopsis thaliana (L.).Photosynthesis research · 2018Article
- Variations in chloroplast movement and chlorophyll fluorescence among chloroplast division mutants under light stress.Journal of experimental botany · 2017Article
- Arabidopsis FHY3/CPD45 regulates far-red light signaling and chloroplast division in parallel.Scientific reports · 2015Article
- Article
- Chloroplast movement behavior varies widely among species and does not correlate with high light stress tolerance.Planta · 2012Article
- Phototropins but not cryptochromes mediate the blue light-specific promotion of stomatal conductance, while both enhance photosynthesis and transpiration under full sunlight.Plant physiology · 2012Article
- The chloroplast division mutant caa33 of Arabidopsis thaliana reveals the crucial impact of chloroplast homeostasis on stress acclimation and retrograde plastid-to-nucleus signaling.The Plant journal : for cell and molecular biology · 2012Article
- Integration of Phot1, Phot2, and PhyB signalling in light-induced chloroplast movements.Journal of experimental botany · 2010Article
- Light, genotype, and abscisic acid affect chloroplast positioning in guard cells of Arabidopsis thaliana leaves in distinct ways.Photosynthesis research · 2010Article
- Plastid division.AoB PLANTS · 2010Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
The effects of chloroplast number and size on the capacity for blue light-dependent chloroplast movement, the ability to increase light absorption under low light, and the susceptibility to photoinhibition were investigated in Arabidopsis thaliana. Leaves of wild-type and chloroplast number mutants with mean chloroplast numbers ranging from 120 to two per mesophyll cell were analysed. Chloroplast movement was monitored as changes in light transmission through the leaves. Light transmission was used as an indicator of the ability of leaves to optimize light absorption. The ability of leaves to deal with 3 h of high light stress at 10 degrees C and their capacity to recover in low light was determined by measuring photochemical efficiencies of PSII using chlorophyll a fluorescence. Chloroplast movement was comparable in leaves ranging in chloroplast numbers from 120 to 30 per mesophyll cell: the final light transmission levels after exposure to 0.1 (accumulation response) and 100 micromol photons m(-2) s(-1) (avoidance response) were indistinguishable, the chloroplasts responded quickly to small increases in light intensity and the kinetics of movement were similar. However, when chloroplast numbers per mesophyll cell decreased to 18 or below, the accumulation response was significantly reduced. The avoidance response was only impaired in mutants with nine or fewer chloroplasts, both in terms of final transmission levels and the speed of movement. Only mutants lacking both blue light receptors (phot1/phot2) or those with drastically reduced chloroplast numbers and severely impacted avoidance responses showed a reduced ability to recover from high light stress.
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