論文 - 詳細
| RRC ID | 82686 |
|---|---|
| 著者 | Široká J, Ament A, Mik V, Pospíšil T, Kralová M, Zhang C, Pernisová M, Karady M, Nožková V, Nishizato Y, Kaji T, Saito R, Htitich M, Floková K, Wasternack C, Strnad M, Ueda M, Novák O, Brunoni F. |
| タイトル | Amide conjugates of the jasmonate precursor cis-(+)-12-oxo-phytodienoic acid regulate its homeostasis during plant stress responses. |
| ジャーナル | Plant Physiol |
| Abstract |
Jasmonates are a family of oxylipin phytohormones regulating plant development and growth and mediating "defense versus growth" responses. The upstream JA biosynthetic precursor cis-(+)-12-oxo-phytodienoic acid (cis-OPDA) acts independently of CORONATIVE INSENSITIVE 1-mediated JA signaling in several stress-induced and developmental processes. However, its perception and metabolism are only partially understood. An isoleucine analog of the biologically active JA-Ile, OPDA-Ile, was detected years ago in wounded leaves of flowering plants, opening up the possibility that conjugation of cis-OPDA to amino acids might be a relevant mechanism for cis-OPDA regulation. Here, we extended the analysis of amino acid conjugates of cis-OPDA and identified naturally occurring OPDA-Val, OPDA-Phe, OPDA-Ala, OPDA-Glu, and OPDA-Asp accumulating in response to biotic and abiotic stress in Arabidopsis (Arabidopsis thaliana). The OPDA amino acid conjugates displayed cis-OPDA-related plant responses in a JA-Ile-dependent manner. We also showed that the synthesis and hydrolysis of cis-OPDA amino acid conjugates are mediated by members of the amidosynthetase GRETCHEN HAGEN 3 and the amidohydrolase INDOLE-3-ACETYL-LEUCINE RESISTANT 1/ILR1-like families. Thus, OPDA amino acid conjugates function in the catabolism or temporary storage of cis-OPDA in stress responses instead of acting as chemical signals per se. |
| 巻・号 | 197(1) |
| 公開日 | 2024-12-23 |
| DOI | 10.1093/plphys/kiae636 |
| PII | 7912146 |
| PMID | 39607728 |
| PMC | PMC11663710 |
| MeSH | Amides / metabolism Arabidopsis* / genetics Arabidopsis* / metabolism Cyclopentanes* / metabolism Fatty Acids, Unsaturated* / metabolism Gene Expression Regulation, Plant Homeostasis* Isoleucine / analogs & derivatives Isoleucine / metabolism Oxylipins* / metabolism Plant Growth Regulators / metabolism Stress, Physiological* |
| IF | 6.902 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 21 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.5 |
| リソース情報 | |
| シロイヌナズナ / 植物培養細胞・遺伝子 | psi00466 |