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Kouki Hikosaka
Plant Physiology
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Article
Does selection occur at the intermediate zone of two insufficiently isolated populations? A whole-genome analysis along an altitudinal gradient
Adaptive divergence occurs even between insufficiently isolated populations when there is a great difference in environments between their habitats. Individuals present in an intermediate zone of the two diver...
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Article
Imaging, screening and remote sensing of photosynthetic activity and stress responses
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Open AccessLinking remote sensing parameters to CO2 assimilation rates at a leaf scale
Solar-induced chlorophyll fluorescence (SIF) and photochemical reflectance index (PRI) are expected to be useful for remote sensing of photosynthetic activity at various spatial scales. This review discusses h...
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Corrected photochemical reflectance index (PRI) is an effective tool for detecting environmental stresses in agricultural crops under light conditions
High-throughput detection of plant environmental stresses is required for minimizing the reduction in crop yield. Environmental stresses in plants have primarily been validated by the measurements of photosynt...
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Estimating leaf photosynthesis of C3 plants grown under different environments from pigment index, photochemical reflectance index, and chlorophyll fluorescence
Photosynthetic rates vary depending on growth conditions, even within species. Remote sensing techniques have a great potential to predict the photosynthetic rates of leaves with different characteristics. Her...
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Article
With gratitude from the Editor-in-Chief of the Journal of Plant Research
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2020 Awards in the Journal of Plant Research
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New Year’s greetings 2020 from the Journal of Plant Research
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2019 Awards in the Journal of Plant Research
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Plasticity of functional traits and optimality of biomass allocation in elevational ecotypes of Arabidopsis halleri grown at different soil nutrient availabilities
In mountainous areas, plant distribution is constrained by various environmental stresses. Plasticity and constancy in plant functional traits may relate to optimal strategies at respective habitats and to eco...
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New year’s greetings 2019 from the Journal of Plant Research
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Dependence of functional traits related to growth rates and their CO2 response on multiple habitat climate factors across Arabidopsis thaliana populations
The values of many plant traits are often different even within a species as a result of local adaptation. Here, we studied how multiple climate variables influence trait values in Arabidopsis thaliana grown unde...
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2018 Awards in the Journal of Plant Research
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New year’s greetings 2018 from the Journal of Plant Research
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Chapter
Photosynthetic and Photosynthesis-Related Responses of Japanese Native Trees to CO2: Results from Phytotrons, Open-Top Chambers, Natural CO2 Springs, and Free-Air CO2 Enrichment
We explore the effects of elevated CO2, in relation to other environmental factors, on leaf photosynthesis, the functioning of other organs, and the plant as a unit, primarily in tree species and herbs common to ...
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2017 Awards in the Journal of Plant Research
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Nitrogen resorption in senescing leaf blades of rice exposed to free-air CO2 enrichment (FACE) under different N fertilization levels
Nitrogen (N) resorption from senescing leaves is essential to meet N demand for grain development in rice (Oryza sativa L.). We asked whether rice is capable of reducing N in their senesced leaf blade to lower co...
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Greetings from the new Editor-in-Chief
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Article
Optimality of nitrogen distribution among leaves in plant canopies
The vertical gradient of the leaf nitrogen content in a plant canopy is one of the determinants of vegetation productivity. The ecological significance of the nitrogen distribution in plant canopies has been d...
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