Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate
Flower opening in the early morning helps avoid sterility induced by heat stress at anthesis in rice (Oryza sativa L.). A pot experiment was conducted to reveal the effects of methyl jasmonate (MeJA) on flower opening time (FOT), sterility, pollination, and anther dehiscence. Four mmol L−1 MeJA solu...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2010-01-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.13.29 |
| _version_ | 1818154331411578880 |
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| author | Kazuhiro Kobayasi Yumi Atsuta |
| author_facet | Kazuhiro Kobayasi Yumi Atsuta |
| author_sort | Kazuhiro Kobayasi |
| collection | DOAJ |
| description | Flower opening in the early morning helps avoid sterility induced by heat stress at anthesis in rice (Oryza sativa L.). A pot experiment was conducted to reveal the effects of methyl jasmonate (MeJA) on flower opening time (FOT), sterility, pollination, and anther dehiscence. Four mmol L−1 MeJA solution (3 mL per panicle) and water, as a control, was applied to the panicles of the japonica type rice cultivar‘Hinohikari’ at 0900, 1000, or 1100. By photographing flowers at 4-min intervals, we determined the FOT. Flower sterility, pollination, and anther dehiscence were also examined. Application of MeJA solution at 0900 advanced FOT about 2 hr compared with that without application, and 1.5 hr compared with that after application of water. MeJA application at 1000 also advanced FOT, but that at 1100 did not. Application of MeJA solution significantly increased the numbers offlowers opening on the day of treatmentand decreased that on the day after treatment. Application of MeJA solution at 0900 significantly increased flower sterility compared with that without treatment. More than 40% of the flowers that were treated with MeJA and opened on the day oftreatment were those expected to open on the next day. These results suggest that sterility induced by application of MeJAis caused by the early opening of flowers expected to open the day after treatment. |
| first_indexed | 2024-12-11T14:24:49Z |
| format | Article |
| id | doaj.art-143d856c29b14791b9b84de85fcfc8cb |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-11T14:24:49Z |
| publishDate | 2010-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-143d856c29b14791b9b84de85fcfc8cb2022-12-22T01:02:43ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082010-01-01131293610.1626/pps.13.2911645002Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl JasmonateKazuhiro Kobayasi0Yumi Atsuta1Shimane UniversityShimane UniversityFlower opening in the early morning helps avoid sterility induced by heat stress at anthesis in rice (Oryza sativa L.). A pot experiment was conducted to reveal the effects of methyl jasmonate (MeJA) on flower opening time (FOT), sterility, pollination, and anther dehiscence. Four mmol L−1 MeJA solution (3 mL per panicle) and water, as a control, was applied to the panicles of the japonica type rice cultivar‘Hinohikari’ at 0900, 1000, or 1100. By photographing flowers at 4-min intervals, we determined the FOT. Flower sterility, pollination, and anther dehiscence were also examined. Application of MeJA solution at 0900 advanced FOT about 2 hr compared with that without application, and 1.5 hr compared with that after application of water. MeJA application at 1000 also advanced FOT, but that at 1100 did not. Application of MeJA solution significantly increased the numbers offlowers opening on the day of treatmentand decreased that on the day after treatment. Application of MeJA solution at 0900 significantly increased flower sterility compared with that without treatment. More than 40% of the flowers that were treated with MeJA and opened on the day oftreatment were those expected to open on the next day. These results suggest that sterility induced by application of MeJAis caused by the early opening of flowers expected to open the day after treatment.http://dx.doi.org/10.1626/pps.13.29Anther dehiscenceFlower opening in early morningFlower opening timeHeat-induced sterilityMethyl jasmonateOryza sativaPollinationSterility |
| spellingShingle | Kazuhiro Kobayasi Yumi Atsuta Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate Plant Production Science Anther dehiscence Flower opening in early morning Flower opening time Heat-induced sterility Methyl jasmonate Oryza sativa Pollination Sterility |
| title | Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate |
| title_full | Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate |
| title_fullStr | Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate |
| title_full_unstemmed | Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate |
| title_short | Sterility and Poor Pollination Due to Early Flower Opening Induced by Methyl Jasmonate |
| title_sort | sterility and poor pollination due to early flower opening induced by methyl jasmonate |
| topic | Anther dehiscence Flower opening in early morning Flower opening time Heat-induced sterility Methyl jasmonate Oryza sativa Pollination Sterility |
| url | http://dx.doi.org/10.1626/pps.13.29 |
| work_keys_str_mv | AT kazuhirokobayasi sterilityandpoorpollinationduetoearlyfloweropeninginducedbymethyljasmonate AT yumiatsuta sterilityandpoorpollinationduetoearlyfloweropeninginducedbymethyljasmonate |