Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-10539
Shimizu, Kentaro K; Ito, Toshiro; Ishiguro, Sumie; Okada, Kiyotaka (2008). MAA3 (MAGATAMA3) helicase gene is required for female gametophyte development and pollen tube guidance in Arabidopsis thaliana. Plant & Cell Physiology, 49(10):1478-1483.
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The female gametophyte plays a central role in the sexual reproduction of angiosperms. We previously isolated the maa3 (magatama3) mutant of Arabidopsis thaliana, defective in development of the female gametophyte, micropylar pollen tube guidance, and preventing the attraction of multiple pollen tubes. We here observed that the nucleolus of polar nuclei is small, and that the fusion of polar nuclei often did not occur at the time of pollination. The MAA3 gene encodes a homolog of yeast Sen1 helicase, required for RNA metabolism. It is suggested that MAA3 may regulate RNA molecules responsible for nucleolar organization and pollen tube guidance.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute of Plant Biology|
08 University Research Priority Programs > Systems Biology / Functional Genomics
|DDC:||570 Life sciences; biology|
580 Plants (Botany)
|Deposited On:||22 Jan 2009 17:00|
|Last Modified:||21 Oct 2013 13:27|
|Publisher:||Oxford University Press|
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