Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16
The plant hormone jasmonoyl-isoleucine (JA-Ile) is an important regulator of plant growth and defense in response to various biotic and abiotic stress cues. Under our experimental conditions, JA-Ile levels increased approximately seven-fold in NaCl-treated <i>Arabidopsis thaliana</i> roo...
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MDPI AG
2020-11-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/9/12/1635 |
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| author | Corinna Thurow Markus Krischke Martin J. Mueller Christiane Gatz |
| author_facet | Corinna Thurow Markus Krischke Martin J. Mueller Christiane Gatz |
| author_sort | Corinna Thurow |
| collection | DOAJ |
| description | The plant hormone jasmonoyl-isoleucine (JA-Ile) is an important regulator of plant growth and defense in response to various biotic and abiotic stress cues. Under our experimental conditions, JA-Ile levels increased approximately seven-fold in NaCl-treated <i>Arabidopsis thaliana</i> roots. Although these levels were around 1000-fold lower than in wounded leaves, genes of the JA-Ile signaling pathway were induced by a factor of 100 or more. Induction was severely compromised in plants lacking the JA-Ile receptor CORONATINE INSENSITIVE 1 or enzymes required for JA-Ile biosynthesis. To explain efficient gene expression at very low JA-Ile levels, we hypothesized that salt-induced expression of the JA/JA-Ile transporter <i>JAT1/AtABCG16</i> would lead to increased nuclear levels of JA-Ile. However, mutant plants with different <i>jat1</i> alleles were similar to wild-type ones with respect to salt-induced gene expression. The mechanism that allows COI1-dependent gene expression at very low JA-Ile levels remains to be elucidated. |
| first_indexed | 2024-03-10T14:35:33Z |
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| language | English |
| last_indexed | 2024-03-10T14:35:33Z |
| publishDate | 2020-11-01 |
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| spelling | doaj.art-0980caa790034b968dece8eef494837e2023-11-20T22:09:13ZengMDPI AGPlants2223-77472020-11-01912163510.3390/plants9121635Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16Corinna Thurow0Markus Krischke1Martin J. Mueller2Christiane Gatz3Department of Plant Molecular Biology and Physiology, Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Julia-Lermontowa-Weg 3, 37077 Göttingen, GermanyPharmaceutical Biology, Julius-von-Sachs-Institute for Biosciences, University of Würzburg, 97082 Würzburg, GermanyPharmaceutical Biology, Julius-von-Sachs-Institute for Biosciences, University of Würzburg, 97082 Würzburg, GermanyDepartment of Plant Molecular Biology and Physiology, Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Julia-Lermontowa-Weg 3, 37077 Göttingen, GermanyThe plant hormone jasmonoyl-isoleucine (JA-Ile) is an important regulator of plant growth and defense in response to various biotic and abiotic stress cues. Under our experimental conditions, JA-Ile levels increased approximately seven-fold in NaCl-treated <i>Arabidopsis thaliana</i> roots. Although these levels were around 1000-fold lower than in wounded leaves, genes of the JA-Ile signaling pathway were induced by a factor of 100 or more. Induction was severely compromised in plants lacking the JA-Ile receptor CORONATINE INSENSITIVE 1 or enzymes required for JA-Ile biosynthesis. To explain efficient gene expression at very low JA-Ile levels, we hypothesized that salt-induced expression of the JA/JA-Ile transporter <i>JAT1/AtABCG16</i> would lead to increased nuclear levels of JA-Ile. However, mutant plants with different <i>jat1</i> alleles were similar to wild-type ones with respect to salt-induced gene expression. The mechanism that allows COI1-dependent gene expression at very low JA-Ile levels remains to be elucidated.https://www.mdpi.com/2223-7747/9/12/1635allene oxide synthaseCORONATINE INSENSITIVE 1jasmonoyl-isoleucineJA/JA-Ile transport protein JAT1rootssalt |
| spellingShingle | Corinna Thurow Markus Krischke Martin J. Mueller Christiane Gatz Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 Plants allene oxide synthase CORONATINE INSENSITIVE 1 jasmonoyl-isoleucine JA/JA-Ile transport protein JAT1 roots salt |
| title | Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 |
| title_full | Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 |
| title_fullStr | Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 |
| title_full_unstemmed | Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 |
| title_short | Induction of Jasmonoyl-Isoleucine (JA-Ile)-Dependent <i>JASMONATE ZIM-DOMAIN</i> <i>(JAZ)</i> Genes in NaCl-Treated <i>Arabidopsis thaliana</i> Roots Can Occur at Very Low JA-Ile Levels and in the Absence of the JA/JA-Ile Transporter JAT1/AtABCG16 |
| title_sort | induction of jasmonoyl isoleucine ja ile dependent i jasmonate zim domain i i jaz i genes in nacl treated i arabidopsis thaliana i roots can occur at very low ja ile levels and in the absence of the ja ja ile transporter jat1 atabcg16 |
| topic | allene oxide synthase CORONATINE INSENSITIVE 1 jasmonoyl-isoleucine JA/JA-Ile transport protein JAT1 roots salt |
| url | https://www.mdpi.com/2223-7747/9/12/1635 |
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