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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...
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...
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 ...
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...
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...
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 ...
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...
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...
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...
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...
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...
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...

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