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פותח על ידי קלירמאש פתרונות בע"מ -
Strigolactones are involved in root response to low phosphate conditions in arabidopsis
Year:
2012
Authors :
אנזר, יעל
;
.
וינינגר, סמדר
;
.
ירמיהו, אורי
;
.
כהן, מאיה
;
.
מייזליש-גתי, עינב
;
.
קולטאי, חננית
;
.
קפולניק, יורם
;
.
קפלן, יוליה
;
.
רזניק, נטליה
;
.
Volume :
160
Co-Authors:
Mayzlish-Gati, E., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
De-Cuyper, C., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Goormachtig, S., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Beeckman, T., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Vuylsteke, M., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Brewer, P.B., School of Biological Sciences, University of Queensland, St Lucia, Brisbane 4072, Australia
Beveridge, C.A., School of Biological Sciences, University of Queensland, St Lucia, Brisbane 4072, Australia
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization, Negev 2 85280, Israel
Kaplan, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Enzer, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Wininger, S., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Resnick, N., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Cohen, M., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel, Mina and Everard Goodman, Faculty of Life Sciences, Bar-ilan University, Ramat Gan 52900, Israel
Kapulnik, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Koltai, H., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Facilitators :
From page:
1329
To page:
1341
(
Total pages:
13
)
Abstract:
Strigolactones (SLs) are plant hormones that suppress lateral shoot branching, and act to regulate root hair elongation and lateral root formation. Here, we show that SLs are regulators of plant perception of or response to low inorganic phosphate (Pi) conditions. This regulation is mediated by MORE AXILLARY GROWTH2 (MAX2) and correlated with transcriptional induction of the auxin receptor TRANSPORT INHIBITOR RESPONSE1 (TIR1). Mutants of SL signaling (max2-1) or biosynthesis (max4-1) showed reduced response to low Pi conditions relative to the wild type. In max4-1, but not max2-1, the reduction in response to low Pi was compensated by the application of a synthetic strigolactone GR24. Moreover, AbamineSG, which decreases SL levels in plants, reduced the response to low Pi in the wild type, but not in SL-signaling or biosynthesis mutants. In accordance with the reduced response of max2-1 to low Pi relative to the wild type, several phosphate-starvation response and phosphate-transporter genes displayed reduced induction in max2-1, even though Pi content in max2-1 and the wild type were similar. Auxin, but not ethylene, was sufficient to compensate for the reduced max2-1 response to low Pi conditions. Moreover, the expression level of TIR1 was induced under low Pi conditions in the wild type, but not in max2-1. Accordingly, the tir1-1 mutant showed a transient reduction in root hair density in comparison with the wild type under low Pi conditions. Therefore, we suggest that the response of plants to low Pi is regulated by SLs; this regulation is transmitted via the MAX2 component of SL signaling and is correlated with transcriptional induction of the TIR1 auxin receptor. © 2012 American Society of Plant Biologists.
Note:
Related Files :
arabidopsis
Genetics
Growth, Development and Aging
metabolism
mutation
עוד תגיות
תוכן קשור
More details
DOI :
10.1104/pp.112.202358
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24729
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:09
You may also be interested in
Scientific Publication
Strigolactones are involved in root response to low phosphate conditions in arabidopsis
160
Mayzlish-Gati, E., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
De-Cuyper, C., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Goormachtig, S., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Beeckman, T., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Vuylsteke, M., Department of Plant Systems Biology, Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
Brewer, P.B., School of Biological Sciences, University of Queensland, St Lucia, Brisbane 4072, Australia
Beveridge, C.A., School of Biological Sciences, University of Queensland, St Lucia, Brisbane 4072, Australia
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization, Negev 2 85280, Israel
Kaplan, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Enzer, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Wininger, S., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Resnick, N., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Cohen, M., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel, Mina and Everard Goodman, Faculty of Life Sciences, Bar-ilan University, Ramat Gan 52900, Israel
Kapulnik, Y., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Koltai, H., Institute of Plant Sciences, Agricultural Research Organization, Bet Dagan 50250, Israel
Strigolactones are involved in root response to low phosphate conditions in arabidopsis
Strigolactones (SLs) are plant hormones that suppress lateral shoot branching, and act to regulate root hair elongation and lateral root formation. Here, we show that SLs are regulators of plant perception of or response to low inorganic phosphate (Pi) conditions. This regulation is mediated by MORE AXILLARY GROWTH2 (MAX2) and correlated with transcriptional induction of the auxin receptor TRANSPORT INHIBITOR RESPONSE1 (TIR1). Mutants of SL signaling (max2-1) or biosynthesis (max4-1) showed reduced response to low Pi conditions relative to the wild type. In max4-1, but not max2-1, the reduction in response to low Pi was compensated by the application of a synthetic strigolactone GR24. Moreover, AbamineSG, which decreases SL levels in plants, reduced the response to low Pi in the wild type, but not in SL-signaling or biosynthesis mutants. In accordance with the reduced response of max2-1 to low Pi relative to the wild type, several phosphate-starvation response and phosphate-transporter genes displayed reduced induction in max2-1, even though Pi content in max2-1 and the wild type were similar. Auxin, but not ethylene, was sufficient to compensate for the reduced max2-1 response to low Pi conditions. Moreover, the expression level of TIR1 was induced under low Pi conditions in the wild type, but not in max2-1. Accordingly, the tir1-1 mutant showed a transient reduction in root hair density in comparison with the wild type under low Pi conditions. Therefore, we suggest that the response of plants to low Pi is regulated by SLs; this regulation is transmitted via the MAX2 component of SL signaling and is correlated with transcriptional induction of the TIR1 auxin receptor. © 2012 American Society of Plant Biologists.
Scientific Publication
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