Molecular evidence that most RNAs required for germination and pollen tube growth are stored in the mature pollen grain in petunia
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- Ishimizu Takeshi
- Graduate School of Science, Osaka University
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- Kodama Hiroaki
- Department of Bioproduction Science, Faculty of Horticulture, Chiba University
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- Ando Toshio
- Department of Bioproduction Science, Faculty of Horticulture, Chiba University
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- Watanabe Masao
- Graduate School of Life Sciences, Tohoku University Faculty of Science, Tohoku University
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After landing on the stigma, the pollen grain germinates and elongates a tube to deliver its generative nuclei to the egg cell of the ovule. The molecular mechanisms involved in the drastic morphological changes in the pollen grain during this fertilization process remain largely unknown. In this study, the expression of 732 randomly selected genes in petunia pollen and pollen tubes was analyzed by microarray and quantitative PCR analyses. We found no evidence for up-regulation of any of these genes in the pollen tube. Our findings provide support at the gene level for the longstanding hypothesis that pollen germination and tube growth are not dependent on new RNA synthesis and that the large number of RNAs required for germination and tube growth are stored in mature pollen grains.<br>
収録刊行物
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- Genes & Genetic Systems
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Genes & Genetic Systems 85 (4), 259-263, 2010
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詳細情報 詳細情報について
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- CRID
- 1390282680450729600
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- NII論文ID
- 10029515317
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- NII書誌ID
- AA11077421
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- ISSN
- 18805779
- 13417568
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- NDL書誌ID
- 10904812
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可