Please use this identifier to cite or link to this item: https://doi.org/10.1093/pcp/pcn130
Title: MAA3 (MAGATAMA3) helicase gene is required for female gametophyte development and pollen tube guidance in Arabidopsis thaliana
Authors: Shimizu, K.K.
Ito, T. 
Ishiguro, S.
Okada, K.
Keywords: Arabidopsis thaliana
Female gametophyte
magatama3 (maa3)
Nucleolus
Pollen tube guidance
Sen1 RNA helicase
Issue Date: Oct-2008
Citation: Shimizu, K.K., Ito, T., Ishiguro, S., Okada, K. (2008-10). MAA3 (MAGATAMA3) helicase gene is required for female gametophyte development and pollen tube guidance in Arabidopsis thaliana. Plant and Cell Physiology 49 (10) : 1478-1483. ScholarBank@NUS Repository. https://doi.org/10.1093/pcp/pcn130
Abstract: 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. © The Author 2008. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved.
Source Title: Plant and Cell Physiology
URI: http://scholarbank.nus.edu.sg/handle/10635/101046
ISSN: 00320781
DOI: 10.1093/pcp/pcn130
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