論文

査読有り 最終著者 責任著者 国際誌
2021年4月

Persistent directional growth capability in Arabidopsis thaliana pollen tubes after nuclear elimination from the apex

Nature Communications
  • Kazuki Motomura
  • ,
  • Hidenori Takeuchi
  • ,
  • Michitaka Notaguchi
  • ,
  • Haruna Tsuchi
  • ,
  • Atsushi Takeda
  • ,
  • Tetsu Kinoshita
  • ,
  • Tetsuya Higashiyama
  • ,
  • Daisuke Maruyama

12
1
開始ページ
2331
終了ページ
2331
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41467-021-22661-8
出版者・発行元
Springer Science and Business Media LLC

<title>Abstract</title>During the double fertilization process, pollen tubes deliver two sperm cells to an ovule containing the female gametes. In the pollen tube, the vegetative nucleus and sperm cells move together to the apical region where the vegetative nucleus is thought to play a crucial role in controlling the direction and growth of the pollen tube. Here, we report the generation of pollen tubes in <italic>Arabidopsis thaliana</italic> whose vegetative nucleus and sperm cells are isolated and sealed by callose plugs in the basal region due to apical transport defects induced by mutations in the WPP domain-interacting tail-anchored proteins (WITs) and sperm cell-specific expression of a dominant mutant of the CALLOSE SYNTHASE 3 protein. Through pollen-tube guidance assays, we show that the physiologically anuclear mutant pollen tubes maintain the ability to grow and enter ovules. Our findings provide insight into the sperm cell delivery mechanism and illustrate the independence of the tip-localized vegetative nucleus from directional growth control of the pollen tube.

リンク情報
DOI
https://doi.org/10.1038/s41467-021-22661-8
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33888710
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8062503
URL
http://www.nature.com/articles/s41467-021-22661-8.pdf
URL
http://www.nature.com/articles/s41467-021-22661-8
ID情報
  • DOI : 10.1038/s41467-021-22661-8
  • eISSN : 2041-1723
  • PubMed ID : 33888710
  • PubMed Central 記事ID : PMC8062503

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