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Studies on Ultrastructure and Function of Photosynthetic Apparatus in Rice Cells : IV. Effect of low dose and intermittent fumigation of ozone on the ultrastructure of chloroplasts in rice leaf cells
Chloroplasts oryza sativa L Ozone fumigation Swelling Thylakoid membranes Ultrastructure
2009/8/6
Young rice plants (Oryza sativa L. cv. Koshihikari), which are 4 week old plants grown in a potting soil under natural light at 28/27°C in day/night, were intermittently fumigated with 0.1 ppm ozone f...
Ultrastructure of Inoculated Anthers in Relation to the Frequency of Induction of Pollen Callus in Anther Culture of Oryza sativa L
Anther Culture Oryza sativa L Rice Ultrastructure
2009/8/6
The formation of pollen callus was induced when rice anthers, which contained microspores in the mid-uninucleate and late-uninucleate stage, were cultured. The ultrastructure of the microspores was al...
Ultrastructure and Cleavage Pattern of Rice Proembryos
Cleavage pattern Embryo Endosperm Oryza sativa Synergid Ultrastructure
2009/8/4
Up to 12 h after anthesis (HAA), the first cell division in rice zygotes occurred with the formation of a slightly oblique transverse wall, causing the partition of the zygote into an apical cell and ...
Effects of Atmospheric Partial Pressure of Carbon Dioxide and Phosphorus Nutrition on the Ultrastructure of Rice (Oryza sativa L.) Chloroplasts
Carbon dioxide Chloroplast Mesophyll cell Rice Phosphorus Starch accumulation
2009/7/29
Rice plants were grown in artificially illuminated growth cabinets under combinations of atmospheric partial pressure of CO2 (35 vs. 70 Pa) and phosphorus (P) nutrition (3 vs. 300 μM) to examine their...
Pretreatment with a Low Concentration of Methyl Viologen Decreases the Effects of Salt Stress on Chloroplast Ultrastructure in Rice Leaves (Oryza sativa L.)
Ascorbate peroxidase Catalase Methyl viologen Oryza sativa Salt stress Superoxide dismutase Thylakoids Ultrastructure
2009/7/29
We investigated the effects of pretreatment with a low concentration of methyl viologen (MV) on the salinity-induced chloroplast degeneration in rice seedlings. The seedlings grown in hydroponic cultu...
Pretreatment with Antioxidants Decreases the Effects of Salt Stress on Chloroplast Ultrastructure in Rice Leaf Segments (Oryza sativa L.)
Antioxidants Chloroplasts Oryza sativa L. Salt stress Thylakoids Ultrastructure
2009/7/29
We investigated the kinds of active oxygen species leading to the destruction of chloroplast ultrastructure in salt-stressed rice plants. After the seedlings were grown for 3 wks, leaf segments (5 mm ...
Ultrastructure of Antipodal Cells of Rice (Oryza sativa) after Anthesis, as Related to Nutrient Transport in Embryo Sac
Antipodal cell Lobe-shaped nucleus Oryza sativa Ultrastructure Wall ingrowth
2009/7/27
In a rice embryo sac, there is an antipodal mass located at the opposite side of the micropyle, directly adjoining nucellar cells. Immediately after anthesis, the antipodal cells are characterized by...
Anatomy and Ultrastructure of the Developing Radicle in Rice Embryos:An Approach to the Study of Somatic Embryogeny
Embryogenesis Oryza sativa Plasmodesm Radicle Ultrastructure
2009/7/24
The development of the radicle at the basal portion of rice rygotic embryos was studied. Median sagittal sections and transverse sections indicated that a radicle tip arose at the ventral side of the...
Ultrastructure of Antipodal Cells of Rice (Oryza sativa) before Anthesis with Special Reference to Concentric Configuration of Endoplasmic Reticula
Antipodal cell Concentric configuration Endoplasmic reticulum Lobed nucleus Oryza sativa
2009/7/23
Before anthesis, rice antipodal cells are located between nucellar cells and a central cell, and have a large-sized lobed nucleus and many cell-wall ingrowths abutting the nucellar cells. An outstandi...
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...
Effect of Limiting Oxygen Supply on the Ultrastructure of Root Tip Cells in the Germinating Stage of Rice Seeds
Aerobic germination Anaerobic germination Rice Root tip Ultrastructure
2009/7/21
Root tips excised from rice seeds germinated aerobically and anaerobically for 12, 18, 24, 48 and 72 h were used as experimental materials, and the changes in the ultrastructure of the plerome cells o...
Analysis of Chloroplast Ultrastructure, Photosystem Ⅱ Light Harvesting Complexes and Chlorophyll Synthesis in a Chlorophyll-Less Rice Mutant W2555
chloroplast ultrastructure photosystem Ⅱ chlorophyll synthesis precursors chlorophyll-less mutant
2009/1/7
A comparative study on chloroplast ultrastructure and light harvesting complex of photosystem Ⅱ (LHC Ⅱ) was conducted between a new rice mutant (W2555) and its wild type (WT). The chloroplasts of W255...