Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars
The resistance to high-temperature stress and the structural appearance of the imperfect grains caused by a high temperature at the ripening stage were studied using 13 selected cultivars of rice. High temperature treatment (daily maximum temperature range, 32-40°C) given from the 4th day after head...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2002-01-01
|
| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.5.160 |
| _version_ | 1811205273711280128 |
|---|---|
| author | Sabaruddin Zakaria Toshiaki Matsuda Shingo Tajima Youji Nitta |
| author_facet | Sabaruddin Zakaria Toshiaki Matsuda Shingo Tajima Youji Nitta |
| author_sort | Sabaruddin Zakaria |
| collection | DOAJ |
| description | The resistance to high-temperature stress and the structural appearance of the imperfect grains caused by a high temperature at the ripening stage were studied using 13 selected cultivars of rice. High temperature treatment (daily maximum temperature range, 32-40°C) given from the 4th day after heading caused the decrease in panicle weight in all of the cultivars examined. The number of empty grains in the upper and lower parts of a panicle was increased by the high temperature in 10 cultivars. Cultivars KRN, Citanduy, Belle patna and BPB were tolerant to the high-temperature treatment at the ripening stage, and cvs. Koshihikari, Sanlicun, Tainung 67, Yamada-nishiki and Lady Wright were sensitive. Light microscopic observation showed that, the whole endosperm was covered with a nucellar epidermis (NE) under both high and natural temperature (26-31°C) conditions at the first week after heading (WAH). Under high-temperature conditions the NE degenerated earlier than under natural temperature conditions. Scanning electron microscopic observation showed that, the endosperm cells of the seeds with a specific gravity (s.g.) of higher than 1.06 had large amyloplasts filled with starch granules. However, the endosperm cells of seeds with a s.g. of 1.00-1.06 had many small amyloplasts containing small single starch granules and had numerous spaces among the amyloplasts. In the endosperm cells at the dorsal side of imperfect grain, layered structures showing progressive decomposition of starch granules were observed. |
| first_indexed | 2024-04-12T03:27:58Z |
| format | Article |
| id | doaj.art-19c5e80b8ce14aaca1270ab18f4d96c9 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-04-12T03:27:58Z |
| publishDate | 2002-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-19c5e80b8ce14aaca1270ab18f4d96c92022-12-22T03:49:37ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082002-01-015216016810.1626/pps.5.16011644529Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice CultivarsSabaruddin Zakaria0Toshiaki Matsuda1Shingo Tajima2Youji Nitta3, Tokyo University of Agriculture and TechnologyIbaraki UniversityIbaraki UniversityIbaraki UniversityThe resistance to high-temperature stress and the structural appearance of the imperfect grains caused by a high temperature at the ripening stage were studied using 13 selected cultivars of rice. High temperature treatment (daily maximum temperature range, 32-40°C) given from the 4th day after heading caused the decrease in panicle weight in all of the cultivars examined. The number of empty grains in the upper and lower parts of a panicle was increased by the high temperature in 10 cultivars. Cultivars KRN, Citanduy, Belle patna and BPB were tolerant to the high-temperature treatment at the ripening stage, and cvs. Koshihikari, Sanlicun, Tainung 67, Yamada-nishiki and Lady Wright were sensitive. Light microscopic observation showed that, the whole endosperm was covered with a nucellar epidermis (NE) under both high and natural temperature (26-31°C) conditions at the first week after heading (WAH). Under high-temperature conditions the NE degenerated earlier than under natural temperature conditions. Scanning electron microscopic observation showed that, the endosperm cells of the seeds with a specific gravity (s.g.) of higher than 1.06 had large amyloplasts filled with starch granules. However, the endosperm cells of seeds with a s.g. of 1.00-1.06 had many small amyloplasts containing small single starch granules and had numerous spaces among the amyloplasts. In the endosperm cells at the dorsal side of imperfect grain, layered structures showing progressive decomposition of starch granules were observed.http://dx.doi.org/10.1626/pps.5.160AmyloplastElectron microscopyEndospermHigh temperatureReserves accumulationRiceRipeningStarch granule. |
| spellingShingle | Sabaruddin Zakaria Toshiaki Matsuda Shingo Tajima Youji Nitta Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars Plant Production Science Amyloplast Electron microscopy Endosperm High temperature Reserves accumulation Rice Ripening Starch granule. |
| title | Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars |
| title_full | Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars |
| title_fullStr | Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars |
| title_full_unstemmed | Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars |
| title_short | Effect of High Temperature at Ripening Stage on the Reserve Accumulation in Seed in Some Rice Cultivars |
| title_sort | effect of high temperature at ripening stage on the reserve accumulation in seed in some rice cultivars |
| topic | Amyloplast Electron microscopy Endosperm High temperature Reserves accumulation Rice Ripening Starch granule. |
| url | http://dx.doi.org/10.1626/pps.5.160 |
| work_keys_str_mv | AT sabaruddinzakaria effectofhightemperatureatripeningstageonthereserveaccumulationinseedinsomericecultivars AT toshiakimatsuda effectofhightemperatureatripeningstageonthereserveaccumulationinseedinsomericecultivars AT shingotajima effectofhightemperatureatripeningstageonthereserveaccumulationinseedinsomericecultivars AT youjinitta effectofhightemperatureatripeningstageonthereserveaccumulationinseedinsomericecultivars |