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dc.contributor.author
Lee, Angie
dc.contributor.author
Giordano, Walter Fabian
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dc.contributor.author
Hirsch, Ann M.
dc.date.available
2024-08-05T11:29:08Z
dc.date.issued
2008-03
dc.identifier.citation
Lee, Angie; Giordano, Walter Fabian; Hirsch, Ann M.; Cytokinin induces expansin gene expression in Melilotus alba Desr. wild-type and the non-nodulating, non-mycorrhizal (Nod - Myc - ) mutant Masym3; Taylor & Francis; Plant Signaling & Behavior; 3; 4; 3-2008; 218-223
dc.identifier.issn
1559-2324
dc.identifier.uri
http://hdl.handle.net/11336/241668
dc.description.abstract
We previously showed that applying 10-6 M of the cytokinin 6-benzylaminopurine (BAP) to uninoculated roots of Masym3, a Nod-Myc- Melilotus alba (Desr.) mutant, resulted in the accumulation of MaENOD40 transcripts to levels similar to BAP-treated wild-type roots. In contrast, inoculation with a Nod- S. meliloti mutant expressing the trans-zeatin synthase gene of Agrobacterium tumefaciens (Nod-/pTZS+) did not induce MaENOD40 transcript accumulation in either wild-type or Masym3 roots. However, Masym3 root hairs became swollen at their tips following inoculation with wild-type or Nod-/pTZS+ rhizobia. Because root hair distention and elongation are often correlated with increased expansin activity, we investigated whether BAP treatment or inoculation with Nod-/pTZS+ S. meliloti up-regulated the expression of expansin mRNAs. We first determined that treating wild-type roots with 10-5 or 10-6 M BAP resulted in greater MaEXPA1 transcript accumulation than treating roots with comparable concentrations of the auxin NAA. When Masym3 roots were treated with 10-6 M BAP, MaEXPA1 mRNAs accumulated to levels comparable to wild-type roots. We then showed that MaEXPA1 mRNAs accumulated in wild-type M. alba roots in response to the Nod-/pTZS+ S. meliloti strain. Masym3 mutant roots inoculated with Nod-/pTZS+ rhizobia were also up-regulated for MaEXPA1 expression.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MAENOD40
dc.subject
CYTOKININ
dc.subject
MELILOTUS ALBA
dc.subject.classification
Biología Celular, Microbiología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Cytokinin induces expansin gene expression in Melilotus alba Desr. wild-type and the non-nodulating, non-mycorrhizal (Nod - Myc - ) mutant Masym3
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-07-25T14:33:13Z
dc.journal.volume
3
dc.journal.number
4
dc.journal.pagination
218-223
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Lee, Angie. University of California at Los Angeles; Estados Unidos
dc.description.fil
Fil: Giordano, Walter Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. University of California at Los Angeles; Estados Unidos
dc.description.fil
Fil: Hirsch, Ann M.. University of California at Los Angeles; Estados Unidos
dc.journal.title
Plant Signaling & Behavior
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.4161/psb.3.4.5317
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.4161/psb.3.4.5317
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