Ethylene signalling is involved in regulation of phosphate starvation-induced gene expression and production of acid phosphatases and anthocyanin in Arabidopsis

Handle URI:
http://hdl.handle.net/10754/561638
Title:
Ethylene signalling is involved in regulation of phosphate starvation-induced gene expression and production of acid phosphatases and anthocyanin in Arabidopsis
Authors:
Lei, Mingguang; Zhu, Chuanmei; Liu, Yidan; Karthikeyan, Athikkattuvalasu S.; Bressan, Ray Anthony; Raghothama, Kashchandra G.; Liu, Dong
Abstract:
With the exception of root hair development, the role of the phytohormone ethylene is not clear in other aspects of plant responses to inorganic phosphate (Pi) starvation. The induction of AtPT2 was used as a marker to find novel signalling components involved in plant responses to Pi starvation. Using genetic and chemical approaches, we examined the role of ethylene in the regulation of plant responses to Pi starvation. hps2, an Arabidopsis mutant with enhanced sensitivity to Pi starvation, was identified and found to be a new allele of CTR1 that is a key negative regulator of ethylene responses. 1-aminocyclopropane-1-carboxylic acid (ACC), the precursor of ethylene, increases plant sensitivity to Pi starvation, whereas the ethylene perception inhibitor Ag+ suppresses this response. The Pi starvation-induced gene expression and acid phosphatase activity are also enhanced in the hps2 mutant, but suppressed in the ethylene-insensitive mutant ein2-5. By contrast, we found that ethylene signalling plays a negative role in Pi starvation-induced anthocyanin production. These findings extend the roles of ethylene in the regulation of plant responses to Pi starvation and will help us to gain a better understanding of the molecular mechanism underlying these responses. © 2010 The Authors. New Phytologist © 2010 New Phytologist Trust.
KAUST Department:
Center for Desert Agriculture; Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
Wiley-Blackwell
Journal:
New Phytologist
Issue Date:
30-Nov-2010
DOI:
10.1111/j.1469-8137.2010.03555.x
PubMed ID:
21118263
Type:
Article
ISSN:
0028646X
Sponsors:
We thank the Arabidopsis Biological Resource Center and Dr Hongwei Guo of Peking University for providing the mutant seeds of etr1-1, eto1-1, ctr1-1 and ein2-5. Thanks are also due to Ms Hui Yuan for her technical assistance and to Bo Zhang and Liqiang Tang of Cold Spring Science Corporation for their help in setting up the CCD imaging system. This work was supported by the National Natural Science Foundation of China (grant no. 30670170), the National Key Basic Research Program of China (grant no. 2009CB119100) and Beijing Natural Science Foundation (grant no. 5082010).
Appears in Collections:
Articles; Center for Desert Agriculture; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLei, Mingguangen
dc.contributor.authorZhu, Chuanmeien
dc.contributor.authorLiu, Yidanen
dc.contributor.authorKarthikeyan, Athikkattuvalasu S.en
dc.contributor.authorBressan, Ray Anthonyen
dc.contributor.authorRaghothama, Kashchandra G.en
dc.contributor.authorLiu, Dongen
dc.date.accessioned2015-08-03T09:01:04Zen
dc.date.available2015-08-03T09:01:04Zen
dc.date.issued2010-11-30en
dc.identifier.issn0028646Xen
dc.identifier.pmid21118263en
dc.identifier.doi10.1111/j.1469-8137.2010.03555.xen
dc.identifier.urihttp://hdl.handle.net/10754/561638en
dc.description.abstractWith the exception of root hair development, the role of the phytohormone ethylene is not clear in other aspects of plant responses to inorganic phosphate (Pi) starvation. The induction of AtPT2 was used as a marker to find novel signalling components involved in plant responses to Pi starvation. Using genetic and chemical approaches, we examined the role of ethylene in the regulation of plant responses to Pi starvation. hps2, an Arabidopsis mutant with enhanced sensitivity to Pi starvation, was identified and found to be a new allele of CTR1 that is a key negative regulator of ethylene responses. 1-aminocyclopropane-1-carboxylic acid (ACC), the precursor of ethylene, increases plant sensitivity to Pi starvation, whereas the ethylene perception inhibitor Ag+ suppresses this response. The Pi starvation-induced gene expression and acid phosphatase activity are also enhanced in the hps2 mutant, but suppressed in the ethylene-insensitive mutant ein2-5. By contrast, we found that ethylene signalling plays a negative role in Pi starvation-induced anthocyanin production. These findings extend the roles of ethylene in the regulation of plant responses to Pi starvation and will help us to gain a better understanding of the molecular mechanism underlying these responses. © 2010 The Authors. New Phytologist © 2010 New Phytologist Trust.en
dc.description.sponsorshipWe thank the Arabidopsis Biological Resource Center and Dr Hongwei Guo of Peking University for providing the mutant seeds of etr1-1, eto1-1, ctr1-1 and ein2-5. Thanks are also due to Ms Hui Yuan for her technical assistance and to Bo Zhang and Liqiang Tang of Cold Spring Science Corporation for their help in setting up the CCD imaging system. This work was supported by the National Natural Science Foundation of China (grant no. 30670170), the National Key Basic Research Program of China (grant no. 2009CB119100) and Beijing Natural Science Foundation (grant no. 5082010).en
dc.publisherWiley-Blackwellen
dc.subjectAcid phosphatasesen
dc.subjectAnthocyaninen
dc.subjectEthylene signallingen
dc.subjectPhosphate starvation responsesen
dc.subjectPSI gene expressionen
dc.titleEthylene signalling is involved in regulation of phosphate starvation-induced gene expression and production of acid phosphatases and anthocyanin in Arabidopsisen
dc.typeArticleen
dc.contributor.departmentCenter for Desert Agricultureen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalNew Phytologisten
dc.contributor.institutionProtein Science Laboratory of the Ministry of Education, School of Life Sciences, Tsinghua University, Beijing 100084, Chinaen
dc.contributor.institutionDepartment of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, United Statesen
dc.contributor.institutionDivision of Applied Life Sciences, WCU Program, Gyeongsang National University, Jinju, 660-701, South Koreaen
kaust.authorBressan, Ray Anthonyen
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