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dc.contributor.author
Stritzler, Margarita  
dc.contributor.author
Muñiz García, María Noelia  
dc.contributor.author
Schlesinger, Mariana  
dc.contributor.author
Cortelezzi, Juan Ignacio  
dc.contributor.author
Capiati, Daniela Andrea  
dc.date.available
2018-04-06T17:16:01Z  
dc.date.issued
2017-10  
dc.identifier.citation
Stritzler, Margarita; Muñiz García, María Noelia; Schlesinger, Mariana; Cortelezzi, Juan Ignacio; Capiati, Daniela Andrea; The plasma membrane H+-ATPase gene family in Solanum tuberosum L. Role of PHA1 in tuberization; Oxford University Press; Journal of Experimental Botany; 68; 17; 10-2017; 4821-4837  
dc.identifier.issn
0022-0957  
dc.identifier.uri
http://hdl.handle.net/11336/41142  
dc.description.abstract
This study presents the characterization of the plasma membrane (PM) H+-ATPases in potato, focusing on their role in stolon and tuber development. Seven PM H+-ATPase genes were identified in the Solanum tuberosum genome, designated PHA1?PHA7. PHA genes show distinct expression patterns in different plant tissues and under different stress treatments. Application of PM H+-ATPase inhibitors arrests stolon growth, promotes tuber induction, and reduces tuber size, indicating that PM H+-ATPases are involved in tuberization, acting at different stages of the process. Transgenic potato plants overexpressing PHA1 were generated (PHA1-OE). At early developmental stages, PHA1-OE stolons elongate faster and show longer epidermal cells than wild-type stolons; this accelerated growth is accompanied by higher cell wall invertase activity, lower starch content, and higher expression of the sucrose?H+ symporter gene StSUT1. PHA1-OE stolons display an increased branching phenotype and develop larger tubers. PHA1-OE plants are taller and also present a highly branched phenotype. These results reveal a prominent role for PHA1 in plant growth and development. Regarding tuberization, PHA1 promotes stolon elongation at early stages, and tuber growth later on. PHA1 is involved in the sucrose?starch metabolism in stolons, possibly providing the driving force for sugar transporters to maintain the apoplastic sucrose transport during elongation.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Oxford University Press  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Bhanching  
dc.subject
Pha1  
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Plant Growth  
dc.subject
Pm H+-Atpase  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
The plasma membrane H+-ATPase gene family in Solanum tuberosum L. Role of PHA1 in tuberization  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-04-06T13:43:16Z  
dc.journal.volume
68  
dc.journal.number
17  
dc.journal.pagination
4821-4837  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Oxford  
dc.description.fil
Fil: Stritzler, Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina  
dc.description.fil
Fil: Muñiz García, María Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina  
dc.description.fil
Fil: Schlesinger, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina  
dc.description.fil
Fil: Cortelezzi, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina  
dc.description.fil
Fil: Capiati, Daniela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina  
dc.journal.title
Journal of Experimental Botany  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1093/jxb/erx284  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/article/68/17/4821/4085270