Multiple hormone treatment revealed novel cooperative relationships between abscisic acid and biotic stress hormones in cultured cells
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- Okamoto Mami
- International Graduate School of Arts and Sciences, Yokohama City University
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- Tsuboi Yuuri
- RIKEN Advanced Science Institute
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- Goda Hideki
- RIKEN Plant Science Center
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- Yoshizumi Takeshi
- RIKEN Plant Science Center Biomass Engineering Program, RIKEN
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- Shimada Yukihisa
- Kihara Institute for Biological Research, Yokohama City University
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- Hirayama Takashi
- Institute of Plant Science and Resources, Okayama University
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抄録
Phytohormones have vigorous crosstalk relationships. For example, abscisic acid (ABA), a hormone involved in abiotic stress responses, has antagonistic interactions with plant hormones that play pivotal roles in defense responses, including salicylic acid (SA) and methyl-jasmonic acid (MeJA). Evidence indicates that the relationships among these plant hormones extend beyond simple antagonism. To explore the interplay between hormones in detail, we analyzed the effects of double hormone treatment on gene expression. By contrast to the antagonistic effects reported previously, our data indicates that ABA interacts with SA and MeJA cooperatively as well. Particularly many genes responded only to double hormone treatment, and, interestingly, the loci that responded to ABA+SA also responded to ABA+MeJA. The expression of early-response genes following double hormone treatment did not fit the linear superposition of individual hormone treatments, in contrast to mammalian and prokaryotic cell responses to multiple chemical stimuli. Thus, synergies in these plant hormone signalings are not simply the sum of individual responses. ABA and SA collaboratively down-regulated the expression of genes involved in cell cycle progression at G2/M phase. Presumably, plants interpret combined hormone signals differently from individual signals in order to respond appropriately to their environmental conditions.
収録刊行物
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- Plant Biotechnology
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Plant Biotechnology 29 (1), 19-34, 2012
日本植物バイオテクノロジー学会
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詳細情報 詳細情報について
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- CRID
- 1390001204327697152
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- NII論文ID
- 10030561276
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- NII書誌ID
- AA11250821
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- COI
- 1:CAS:528:DC%2BC38XmvFGmsbc%3D
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- ISSN
- 13476114
- 13424580
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- NDL書誌ID
- 023567347
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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