Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes. (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes. (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1094/MPMI.2002.15.5.501 (literal)

Alternative label

• Ferraioli S., Tatè R., Cermola M., Favre R., Iaccarino M., Patriarca E. (2002)
  Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes.
  in Molecular plant-microbe interactions
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Ferraioli S., Tatè R., Cermola M., Favre R., Iaccarino M., Patriarca E. (literal)

Pagina inizio

• 501 (literal)

Pagina fine

• 510 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 15 (literal)

Rivista

• Molecular plant-microbe interactions (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR, Int Inst Genet & Biophys, I-80125 Naples, Italy (literal)

Titolo

• Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes. (literal)

Abstract

• We report here the isolation and characterization of amino acid-requiring mutant strains of Rhizobium etli. We observe that the phenotype of most mutations, even when causing a strict auxotrophy, is overcome by cross-feeding from the host plant Phaseolus vulgaris, thereby allowing bacterial production of Nod factors and, consequently, nodule induction. Conversely, light and electron microscopy analysis reveals that the nodules induced by all mutants, including those with normal external morphology, are halted or strongly altered at intermediate or late stages of development. Moreover, some mutants induce nodules that display novel symbiotic phenotypes, such as specific alterations of the invaded cells or the presence of a reduced number of abnormally shaped uninvaded cells. Other mutants induce nodules showing an early and vast necrosis of the central tissue, a phenotype not previously observed in bean nodules, not even in nodules induced by a Fix- mutant. These observations indicate that amino acid auxotrophs represent a powerful tool to study the development of globose determinate-type nodules and emphasize the importance of establishing their histology and cytology before considerations of metabolic exchange are made. (literal)

Prodotto di

• Istituto di genetica e biofisica \"Adriano Buzzati Traverso\" (IGB) (Istituto)

Autore CNR

• ROSARITA TATE' (Unità di personale interno)
• EDUARDO JORGE PATRIARCA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes." (Insieme di parole chiave)

Incoming links:

Autore CNR di

• EDUARDO JORGE PATRIARCA (Unità di personale interno)
• ROSARITA TATE' (Unità di personale interno)

Prodotto

• Istituto di genetica e biofisica \"Adriano Buzzati Traverso\" (IGB) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Molecular plant-microbe interactions (Rivista)

Insieme di parole chiave di

• Keywords of "Auxotrophic mutant strains of Rhizobium etli reveal new nodule development phenotypes." (Insieme di parole chiave)