Rapid Swelling of Pollen Grains in Response to Floret Opening Unfolds Anther Locules in Rice (Oryza sativa L.)
スポンサーリンク
概要
- 論文の詳細を見る
The changes in pollen grain diameter were examined in relation to the floret opening and anther dehiscence in rice (Oryza sativa L.). In the first experiment, the florets were artificially opened by excising the top of the glumes at various times before the expected natural flowering time. Pollen diameter increased rapidly in the artificially opened florets, but slowly in the controls in which the glumes were left intact. The time of anther dehiscence coincided well with the time when pollen grains reached their maximum diameter. In addition, the pollen grain diameter was significantly correlated with the percentage of dehisced anthers in the florets artificially opened at various times. These results indicate that floret opening induces the swelling of pollen grains and that the swelling is an important event for anther dehiscence. In the second experiment, anther segments with pollen left remaining intact and those with pollen removed were immersed in water. The septa in the anther segments without pollen failed to rupture in water, whereas 70% of the septa in the anther segments with pollen left remaining ruptured, indicating that the septa can be ruptured by the swelling pressure of pollen grains resulting in unfolding of anther locules. From these findings, we infer that the rapid swelling of pollen grains in response to floret opening is a driving force to rupture the septum and unfold the locules.
- 日本作物学会の論文
著者
-
Matsui T
Kyoto Univ. Osaka Jpn
-
Matsui Tsutomu
Experimental Farm Kyoto University
-
Omasa K
Univ. Tokyo Tokyo Jpn
-
Horie T
Graduate School Of Agriculture Kyoto University
-
Horie Takeshi
Graduate School Of Agriculture Kyoto Univ.
-
Omasa Kenji
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
-
Omasa Kenji
Graduate School Of Agricultural And Life Sciences The Univ. Of Tokyo
関連論文
- Nutrient Deficiency in the Rice-Stylo (Stylosanthes guianensis) Relay-Intercropping System in Rainfed Lowland Rice Ecosystem in Northeast Thailand
- Relay-Intercropping of Stylosanthes guianensis in Rainfed Lowland Rice Ecosystem in Northeast Thailand(Agronomy)
- Evaluation of Transplanting Date and Nitrogen Fertilizer Rate Adapted by Farmers to Toposequential Variation of Environmental Resources in a Mini Watershed (Nong) in Northeast Thailand(Agronomy)
- Toposequential Variation in Soil Fertility and Rice Productivity of Rainfed Lowland Paddy Fields in Mini-Watershed (Nong) in Northeast Thailand
- Geostatistical Analysis of Soil Chemical Properties and Rice Yield in a Paddy Field and Application to the Analysis of Yield-Determining Factors
- P2 Estimation of Soil Productivity for Rice in Northeast Thailand
- Modeling and Evaluation of Productivity of Rainfed Rice in Northeast Thailand
- Water Use and Growth of Maize under Water Stress on the Soil after Long-Term Applications of Chemical and/or Organic Fertilizers
- Recovery of ^N-labeled Ammonium by Barley and Maize Grown on the Soils with Long-Term Application of Chemical and Organic Fertilizers
- Stability of Rice Pollination in the Field under Hot and Dry Conditions in the Riverina Region of New South Wales, Australia(Crop Physiology and Ecology)
- A Multichannel Automated Chamber System for Continuous Measurement of Carbon Exchange Rate of Rice Canopy
- Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?(Future of Asian Cropping Systems, Proceedings of The Fifth Asian Crop Science Conference)
- Land Equivalent Ratio of Groundnut-Fingermillet Intercrops as Affected by Plant Combination Ratio, and Nitrogen and Water Availability
- Relative Contribution of Hetero-and Auto-trophic Growth to Genotypic Variation of Seedling Vigor in Rice (Oryza sativa L.)(Crop Physiology and Ecology)
- Analysis of Spectral Measurements in Paddy Field for Predicting Rice Growth and Yield Based on a Simple Crop Simulation Model
- Correlation between Viability of Pollination and Length of Basal Dehiscence of the Theca in Rice under a Hot-and-Humid Condition(Crop Physiology and Ecology)
- Dynamics of Abscisic Acid Levels during Grain-Filling in Rice : Comparisons between Superior and Inferior Spikelets
- The Difference in Sterility due to High Temperatures during the Flowering Period among Japonica-Rice Varieties
- Cumparsion between Anthers of two Rice (Oryza sativa L.) Cultivars with Tolerance to High Temperatures at Flowering or Susceptibility
- High Temperature at Flowering Inhibits Swelling of Pollen Grains, a Driving Force for Thecae Dehiscence in Rice(Oryza sativa L.)
- Rapid Swelling of Pollen Grains in Response to Floret Opening Unfolds Anther Locules in Rice (Oryza sativa L.)
- 3D Confocal Laser Scanning Microscopy for the Analysis of Chlorophyll Fluorescence Parameters of Chloroplasts in Intact Leaf Tissues
- 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(Genetic Resources Evaluation)
- Contribution of Sink and Source Sizes to Yield Variation among Rice Cultivars
- Correlation of Nitrogen Concentration with Dry-Matter Partitioning to Spikelets and Total Husk Volume on the Panicle in Japonica Rice
- Gas Exchange through the Slit between the Lemma and the Palea in the Rice (Oryza sativa L.) Floret before Anthesis
- P31 Doubled CO_2 Concentration Effect on Growth and Yield of Two-Rowed Barley in Relation to Temperature and Nitrogen Conditions
- Correlation between Yielding Ability and Dry Matter Productivity during Initial Seed Filling Stage in Various Soybean Genotypes(Crop Physiology and Ecology)
- Relationship between the Size of the Apical Dome at the Panicle Initiation and the Panicle Components in Rice
- Nitrogen Fixation and Seed Yield in Soybean under Moderate High-Temperature Stress
- EFFECTS OF GROUNDNUT-FINGERMILLET INTERCROPS ON RESOURCE USE
- MODIS vegetation and water indices for drought assessment in semi-arid ecosystems of Iran
- Summer-season Differences in NDVI and iTVDI among Vegetation Cover Types in Lake Mashu, Hokkaido, Japan Using Landsat TM Data
- Summer-season Differences in NDVI and iTVDI among Vegetation Cover Types in Lake Mashu, Hokkaido, Japan Using Landsat TM Data
- Growth Responses of Seedlings in Oryza glaberrima Steud. to Short-term Submergence in Guinea, West Africa