The effect of long-term (8 years) compost treatments (compost or compost plus mineral fertilizer) on genetic structure of bacterial and fungal populations in both bulk soil and rhizosphere of grapevine (Vitis vinifera) was analyzed in respect to a control constituted by the soil treated with mineral fertilization. Soils were sampled in early summer (July), mid-summer (August), and before harvest (October). Bacterial and fungal populations were characterized by genetic fingerprints generated by the application of 16S rDNA and ITS rDNA Multiplex Terminal Fragment Length Polymorphism (M-TRFLP) technique. Compost induced no significant differences at any time on microbial communities from bulk soil samples, whereas seasonal variations significantly affected both bacterial and fungal populations as indicated by the Multi Dimensional Scaling (MDS) ordination method of theM-TRFLPs results. MDS analysis of grapevine rhizosphere M-TRFLPs showed that temporal separation was significant for the bacterial population only. Results suggested that soil microbial populations in vineyard productive ecosystems may be sensitive to environmental changes induced by seasonal variations and show a certain degree of resilience to different agricultural practices.

Despite long-term compost amendment seasonal changes are main drivers of soil fungal and bacterial population dynamics in a tuscan vineyard / E. Tatti; F. Decorosi; C. Viti; L. Giovannetti. - In: GEOMICROBIOLOGY JOURNAL. - ISSN 0149-0451. - STAMPA. - 29:(2012), pp. 506-519.

Despite long-term compost amendment seasonal changes are main drivers of soil fungal and bacterial population dynamics in a tuscan vineyard

TATTI, ENRICO;DECOROSI, FRANCESCA;VITI, CARLO;GIOVANNETTI, LUCIANA
2012

Abstract

The effect of long-term (8 years) compost treatments (compost or compost plus mineral fertilizer) on genetic structure of bacterial and fungal populations in both bulk soil and rhizosphere of grapevine (Vitis vinifera) was analyzed in respect to a control constituted by the soil treated with mineral fertilization. Soils were sampled in early summer (July), mid-summer (August), and before harvest (October). Bacterial and fungal populations were characterized by genetic fingerprints generated by the application of 16S rDNA and ITS rDNA Multiplex Terminal Fragment Length Polymorphism (M-TRFLP) technique. Compost induced no significant differences at any time on microbial communities from bulk soil samples, whereas seasonal variations significantly affected both bacterial and fungal populations as indicated by the Multi Dimensional Scaling (MDS) ordination method of theM-TRFLPs results. MDS analysis of grapevine rhizosphere M-TRFLPs showed that temporal separation was significant for the bacterial population only. Results suggested that soil microbial populations in vineyard productive ecosystems may be sensitive to environmental changes induced by seasonal variations and show a certain degree of resilience to different agricultural practices.
2012
29
506
519
E. Tatti; F. Decorosi; C. Viti; L. Giovannetti
File in questo prodotto:
File Dimensione Formato  
reprint.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 1.59 MB
Formato Adobe PDF
1.59 MB Adobe PDF   Richiedi una copia

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

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/584499
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 12
social impact