Background and aims: Since actual production of wheat often leads to human Fe and Zn deficiency, a better understanding of the potential of arbuscular mycorrhizal fungal (AMF) inoculation for micro-nutrient uptake of durum wheat is needed. Methods: Effects of AMF field inoculation and N availability were evaluated on an old and a modern durum wheat variety Results: Following AMF inoculation, the modern variety showed a higher increase of the early root colonization respect to the old one, whereas at maturity root colonization was decreased by N fertilization. In the old variety grain N concentration was increased by inoculation when plants were not fertilized and at the 40–0-40 N, whereas in the modern variety inoculation did not change N concentration. By contrast, in AMF inoculated plots the modern variety showed a higher increase of Fe and Zn in grain compared to the old variety. Accordingly, at harvest, the modern variety showed an higher increase of a molecular operational taxonomic unit affiliated to Rhizophagus compared to the old variety. Conclusion: The inoculated isolate is a good durum wheat colonizer and the modern variety showed higher responsiveness to inoculation in terms of N, Fe and Zn grain concentration respect to the old one.

Strong increase of durum wheat iron and zinc content by field-inoculation with arbuscular mycorrhizal fungi at different soil nitrogen availabilities

ERCOLI, Laura
;
PELLEGRINO, Elisa
2017-01-01

Abstract

Background and aims: Since actual production of wheat often leads to human Fe and Zn deficiency, a better understanding of the potential of arbuscular mycorrhizal fungal (AMF) inoculation for micro-nutrient uptake of durum wheat is needed. Methods: Effects of AMF field inoculation and N availability were evaluated on an old and a modern durum wheat variety Results: Following AMF inoculation, the modern variety showed a higher increase of the early root colonization respect to the old one, whereas at maturity root colonization was decreased by N fertilization. In the old variety grain N concentration was increased by inoculation when plants were not fertilized and at the 40–0-40 N, whereas in the modern variety inoculation did not change N concentration. By contrast, in AMF inoculated plots the modern variety showed a higher increase of Fe and Zn in grain compared to the old variety. Accordingly, at harvest, the modern variety showed an higher increase of a molecular operational taxonomic unit affiliated to Rhizophagus compared to the old variety. Conclusion: The inoculated isolate is a good durum wheat colonizer and the modern variety showed higher responsiveness to inoculation in terms of N, Fe and Zn grain concentration respect to the old one.
2017
File in questo prodotto:
File Dimensione Formato  
Ercoli et al_2017_Plant & Soil.pdf

accesso aperto

Tipologia: Documento in Pre-print/Submitted manuscript
Licenza: Creative commons (selezionare)
Dimensione 1.27 MB
Formato Adobe PDF
1.27 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11382/516666
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 51
social impact