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Enhancement of Rice Leaf Photosynthesis by Crossing between Cultivated Rice,Oryza sativa and Wild Rice Species,Oryza rufipogon
Leaf photosynthesis Oryza rufipogon Oryza sativa Rice Rubisco Rubisco activase Wild rice species
2009/7/29
To study whether wild rice species have genes that may increase potential photosynthetic capacities of rice cultivars, we generated BC2 populations by reciprocally backcrossing Oryza rufipogon (W630)...
Mechanism of High Photosynthetic Capacity in BC2F4 Lines Derived from a Cross between Oryza sativa and Wild Relatives O.rufipogon
Gas exchange rate Oryza rufipogon Photosynthesis Rice Rubisco Rubisco activase Sucrose synthesis
2009/7/27
We found that several BC2F4 lines had high leaf photosynthetic rates under light-saturated and ambient CO2 conditions. These lines are progenies of BC2F1 plants with high photosynthetic capacities whi...
Regulation of Ammonium Accumulation during Salt Stress in Rice (Oryza sativa L.) Seedlings
Glutamate dehydrogenase Glutamate synthase Glutamine synthetase 2-Oxoglutarate Protease Protein synthesis
2009/7/24
Metabolic processes related to ammonium release and assimilation were investigated in a salt-sensitive rice (Oryza sativa L.) cultivar Anapurna. Ammonium content of the 3rd leaves increased 3-4 times ...
Factors Responsible for Decreasing Sturdiness of the Lower Part in Lodging of Rice (Oryza sativa L.)
Lodging Pushing resistance Rice
2009/7/24
Here, we propose new improvement targets capable of decreasing loss of the sturdiness of the lower part in the rice plant (Oryza sativa L.), thereby improving lodging resistance. In nine rice cultivar...
Effect of CO2 Enrichment on the Translocation and Partitioning of Carbon at the Early Grain-filling Stage in Rice (Oryza sativa L.)
13C CO2 enrichment Grain-filling Partitioning Rice Sink Translocation
2009/7/24
Rice plants (Oryza sativa L.) were grown under normal (350 μL L-1 CO2) and CO2-enriched (660 μL L-1 CO2) conditions, and 13CO2 was supplied to the rice plants after heading to examine the translocatio...
Mapping of QTLs Controlling Carbon Isotope Discrimination in the Photosynthetic System using Recombinant Inbred Lines Derived from a Cross between Two Different Rice (Oryza sativa L.) Cultivars
Carbon isotope discrimination (Δ) Photosynthesis Quantitative trait locus (QTL) Rice (Oryza sativa L.)
2009/7/24
Carbon isotope discrimination (Δ) occuring in the process of photosynthesis, shows variation among rice (Oryza sativa L.) cultivars. Elucidation of specific traits associated with the extent of this d...
Formation of Organic Acids in the Root Apices of Rice Plants (Oryza sativa L.) Grown in Acidic Nutrient Solution Containing Aluminum
Acid soil Aluminum Citrate Organic acid Oryza sativa L. Rice Root apex
2009/7/24
Formation of Organic Acids in the Root Apices of Rice Plants (Oryza sativa L.) Grown in Acidic Nutrient Solution Containing Aluminum.
Susceptibility to Coolness at the Young Microspore Stage under High Nitrogen Supply in Rice (Oryza Sativa L.). Proteome Analysis of Mature Anthers
Cool temperature High nitrogen Pollen germination Proteome analysis Sterility Two-dimensional polyacrylamide gel electrophoresis
2009/7/24
In vitro pollen germination experiment using agar plates showed that the growth under high nitrogen conditions enhanced the damage to pollen germination ability caused by the cooling at the young micr...
Effects of the Combined Application of Ethephon and Gibberellin on Growth of Rice (Oryza sativa L.)Seedlings
Coleoptile Direct seeding Ethylene Gibberellin Mesocotyl Plant growth regulator Rice Seedling
2009/7/23
Improvement of early seedling growth, such as seedling emergence and vigor is one of the most important agronomic traits in direct seeding rice cultivation. The effects of two plant growth regulators ...
Genotypic Variation of Stomatal Conductance in Relation to Stomatal Density and Length in Rice (Oryza sativa L.)
Rice (Oryza sativa L.) Rice diverse research set of germplasm (RDRS) Specific stomatal conductance Stomatal conductance Stomatal density Stomatal length
2009/7/23
Stomatal conductance (gs) is an important trait responsible for the genotypic difference in gas diffusion for photosynthesis and transpiration in rice (Oryza sativa L.). We measured gs, stomatal densi...
Growth of Rice (Oryza sativa L.) Cultivars under Upland Conditions with Different Levels of Water Supply
Deep roots Lysimeter Minirhizotron Rice (Oryza sativa L.) Soil water depletion Upland
2009/7/23
A deep root system may be a desirable plant characteristic in upland rice because it improves the plant's water extraction capacity. The objective of the present study was to assess the deep root deve...
Effects of Elevated Atmospheric Carbon Dioxide Concentration on Silica Deposition in Rice (Oryza sativa L.) Panicle
Elevated [CO2] Oryza sativa L. Panicle SEM Silica Transpiration X-ray microanalysis
2009/7/23
The effects of elevated carbon dioxide concentration ([CO2]) on silica deposition on husk epidermis of rice (Oryza sativa L. cv. Akitakomachi) during the flowering stage were investigated in this stud...
Effects of Assimilate Supply and High Temperature during Grain-Filling Period on the Occurrence of Various Types of Chalky Kernels in Rice Plants (Oryza sativa L.)
Assimilate supply Chalky kernels Grain filling High temperature Milky white kernels Rice
2009/7/23
The objective of this study was to clarify the effect of assimilate supply and high temperature on the occurrence of chalky kernels, i.e. milky white, white back, basal white and white belly kernels. ...
Response of Leaf Photosynthesis to Vapor Pressure Difference in Rice (Oryza sativa L) Varieties in Relation to Stomatal and Leaf Internal Conductance
Genotypic difference Internal conductance Leaf photosynthesis Rice (Oryza sativa L) Stomatal conductance Vapor pressure difference (VPD)
2009/7/23
In the afternoon when air humidity decreases, leaf photosynthetic rate (Pn) often declines in rice grown under irrigated conditions. To clarify the genotypic difference of Pn in response to humidity, ...
Correlation between Chloroplast Ultrastructure and Chlorophyll Fluorescence Characteristics in the Leaves of Rice (Oryza sativa L.) Grown under Salinity
Chlorophyll fluorescence Chloroplast Rice (Oryza sativa L.) Salt stress Ultrastructure
2009/7/21
The seedlings of Oryza sativa L. cv. Nipponbare grown by hydroponic culture for 3 wks were treated with 75, 100, 150 and 200 mM NaCl for 14, 14, 6 and 3 days, respectively, and examined for chloroplas...