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Effects of longterm storage on phytochrome-mediated germination in lettuce seeds.
https://ir.soken.ac.jp/records/4229
https://ir.soken.ac.jp/records/4229ae3b675d-b945-459b-a1c8-a22f8215ed0d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2014-02-10 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Effects of longterm storage on phytochrome-mediated germination in lettuce seeds. | |||||||||||
| タイトル | ||||||||||||
| タイトル | Effects of longterm storage on phytochrome-mediated germination in lettuce seeds. | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | metadata only access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||
| 著者 |
CHOI, Kwan-Sam
× CHOI, Kwan-Sam
× WATANABE, Masakatsu
× FURUYA, Masaki
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| 著者別名 |
渡辺, 正勝
× 渡辺, 正勝
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The effects of long-term seed storage on the physiological properties of phytochrome-mediated germination including water uptake, the temperature and light flunnce dependencies of germination and dark germination were studied. The fluenceresponse relationships of the brief irradiation with monochromatic red (660 nm, 7.5 W m−2) and far-red (750 nm, 6.6 W m−2) light at various times after sowing were also studied. The samples used consisted of three lots of seeds ofLactuca sativa L. cv. MSU-16, which had been harvested in 1976, 1979 and 1985 and stored dry for 9, 6 and 0 years, respectively, in darkness at 23±2 C until the experiments were carried out in July–August, 1985. Seeds with the longer storage periods showed the higher ability to germinate in both continuous darkness and continuous white fluorescent light at 20–30 C. In the seeds stored for 6 or 9 years, red light irradiation for 20 sec given at 15 min or more after sowing at 25 C induced as high a percent germination (85–95%) as those under continuous white fluorescent light. In the freshly harvested seeds, however, germination under continuous white fluorescent light (46%) was considerably lower than the germination induced by the red pulse (97%). Germination of the seeds decreased when the intervals between sowing and a far-red irradiation for 20 sec increased up to 100 min (or 30 min in the freshly harvested seeds). The far-red pulse given later than 100 min (or 6 hr in the freshly harvested seeds) after sowing resulted in an increased germination up to the dark-germination levels with increasing intervals between sowing and the pulse irradiation. Before or at 3 min after sowing, the seeds stored for 6 or 9 years were responsive to the far-red pulse although they were not or hardly responsive to the red pulse, while the freshly harvested seeds were responsive to both the far-red and the red pulses. These data indicate that normal functions of phytochrome completely survived in the dry seeds during storage at 25 C for as long as 6 or 9 years and that these functions are restored into full operation by means of imbibition. The differences in the dependence of germination on the time and fluence of a single pulse of red or far-red light seems to be related to the smaller water content throughout the imbibition in the seeds with the longer storage periods. The greater ability to germinate in the dark indicates the greater amounts of PFR or the greater responsivity to PFR, in the seeds with the longer storage periods. |
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| 書誌情報 |
The botanical magazine = Shokubutsu-gaku-zasshi en : The botanical magazine = Shokubutsu-gaku-zasshi 巻 102, 号 2, p. 181-191, 発行日 1989-06 |
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| 出版者 | ||||||||||||
| 出版者 | SpringerLink | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 0006-808X | |||||||||||
| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1007/BF02488562 | |||||||||||
| 関連名称 | 10.1007/BF02488562 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | SpringerLink(The original publication is available at www.springerlink.com) | |||||||||||
