Background and aims Vineyards harbour a variety of weeds, which are usually controlled since they compete with grapevines for water and nutrients. However, weed plants may host groups of fungi and bacteria exerting important functions. Methods We grew three different common vineyard weeds (Taraxacum officinalis, Trifolium repens and Poa trivialis) in four different soils to investigate the effects of weeds and soil type on bacterial and fungal communities colonising bulk soil, rhizosphere and root compartments. Measurements were made using the cultivation-independent technique Automated Ribosomal Intergenic Spacer Analysis (ARISA). Results Weeds have a substantial effect on roots but less impact on the rhizosphere and bulk soil, while soil type affects all three compartments, in particular the bulk soil community. The fungal, but not the bacterial, bulk soil community structure was affected by the plants at the late experimental stage. Root communities contained a smaller number of Operational Taxonomic Units (OTUs) and different bacterial and fungal structures compared with rhizosphere and bulk soil communities. Conclusions Weed effect is localised to the rhizosphere and does not extend to bulk soil in the case of bacteria, although the structure of fungal communities in the bulk soil may be influenced by some weed plants

Corneo, P.E.; Pellegrini, A.; Cappellin, L.; Gessler, C.; Pertot, I. (2013). Weeds influence soil bacterial and fungal communities. PLANT AND SOIL, 373 (1-2): 107-123. doi: 10.1007/s11104-013-1754-5 handle: http://hdl.handle.net/10449/23170

Weeds influence soil bacterial and fungal communities

Corneo, Paola Elisa;Pellegrini, Alberto;Cappellin, Luca;Pertot, Ilaria
2013-01-01

Abstract

Background and aims Vineyards harbour a variety of weeds, which are usually controlled since they compete with grapevines for water and nutrients. However, weed plants may host groups of fungi and bacteria exerting important functions. Methods We grew three different common vineyard weeds (Taraxacum officinalis, Trifolium repens and Poa trivialis) in four different soils to investigate the effects of weeds and soil type on bacterial and fungal communities colonising bulk soil, rhizosphere and root compartments. Measurements were made using the cultivation-independent technique Automated Ribosomal Intergenic Spacer Analysis (ARISA). Results Weeds have a substantial effect on roots but less impact on the rhizosphere and bulk soil, while soil type affects all three compartments, in particular the bulk soil community. The fungal, but not the bacterial, bulk soil community structure was affected by the plants at the late experimental stage. Root communities contained a smaller number of Operational Taxonomic Units (OTUs) and different bacterial and fungal structures compared with rhizosphere and bulk soil communities. Conclusions Weed effect is localised to the rhizosphere and does not extend to bulk soil in the case of bacteria, although the structure of fungal communities in the bulk soil may be influenced by some weed plants
ARISA
Soil microbial structure
Weeds
Vineyard
ARISA
Struttura microbica del suolo
Malerbe
Settore AGR/12 - PATOLOGIA VEGETALE
2013
Corneo, P.E.; Pellegrini, A.; Cappellin, L.; Gessler, C.; Pertot, I. (2013). Weeds influence soil bacterial and fungal communities. PLANT AND SOIL, 373 (1-2): 107-123. doi: 10.1007/s11104-013-1754-5 handle: http://hdl.handle.net/10449/23170
File in questo prodotto:
File Dimensione Formato  
2013 PS Corneo et al.pdf

non disponibili

Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.18 MB
Formato Adobe PDF
1.18 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

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/10449/23170
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 13
social impact