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Plant and Cell Physiology, 2003, Vol. 44, No. 11 1246-1252
© 2003 Oxford University Press

Short Communication

Expression Profiles of Arabidopsis Phospholipase A IIA Gene in Response to Biotic and Abiotic Stresses

Yoshihiro Narusaka1,2,5,6, Mari Narusaka1,3,5, Motoaki Seki2,3, Miki Fujita3, Junko Ishida3, Maiko Nakashima3, Akiko Enju3, Tetsuya Sakurai3, Masakazu Satou3, Asako Kamiya3, Pyoyun Park1, Masatomo Kobayashi4 and Kazuo Shinozaki2,3

1 Kobe University Graduate School of Science and Technology, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501 Japan
2 Laboratory of Plant Molecular Biology, RIKEN Tsukuba Institute, 3-1-1 Koyadai, Tsukuba, 305-0074 Japan
3 Plant Mutation Exploration Team, Plant Functional Genomics Research Group, RIKEN Genomic Sciences Center (GSC), RIKEN Yokohama Institute, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045 Japan
4 Experimental Plant Division, RIKEN Bio Resource Center, 3-1-1 Koyadai, Tsukuba, 305-0074 Japan

Abstract

We examined the transcripts that showed changes among the ca.7,000 Arabidopsis full-length cDNAs under biotic and abiotic stresses. Expression of Arabidopsis phospholipase A IIA (AtPLA IIA) gene was induced by various treatments such as pathogen inoculation (Alternaria alternata, Alternaria brassicicola and Colletotrichum higginsianum), cold, high-salinity, abscisic acid, salicylic acid, methyl jasmonate, ethephon, paraquat, rose bengal, UV-C and CuSO4-treatments. The regulation of AtPLA IIA gene expression under biotic and abiotic stresses was analyzed with AtPLA IIA promoter region (from +95 to –1,405) fused to the GUS reporter gene. In conclusion, the promoter activity is induced under these stresses.

Footnotes

5 These authors have contributed equally to this work and should be considered as joint first authors.

6 Corresponding author: E-mail, narusaka{at}ans.ans.kobe-u.ac.jp; Fax, +81-78-803-6540.


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