Fungal endophytic communities associated to the phyllosphere of grapevine cultivars under different types of management


Autoria(s): Varanda, Carla; Oliveira, Mônica; Materatski, Patrick; Landum, Miguel; Clara, Maria Ivone; Félix, Maria Rosário
Data(s)

10/01/2017

10/01/2017

2016

Resumo

Fungal endophytes present in different asymptomatic grapevine plants (Vitis vinifera L.) located in different vineyards within Alentejo, a highly important viticulture region in Portugal, were identified in this study. Sampled grapevine plants included the three most representative cultivars in the region, Syrah, Cabernet Sauvignon, and Aragonez, growing under two different modes of management, conventional and biological. Sixteen fungal taxa were identified through sequencing of the internal transcribed spacer region. Total number of endophytic fungi isolated showed significant differences both in management mode and in cultivars, with higher numbers in grapevines under conventional mode and from Syrah cultivar. The composition of fungal endophytic communities did not show significant differences among cultivars, but differences were observed between fungal communities isolated from grapevines under biological or conventional modes. The most fungal taxa isolated from grapevines cultivated under biological mode were Alternaria alternata, Cladosporium sp., and Nigrospora oryzae, and under conventional mode Botrytis cinerea, Epicoccum nigrum, and Epicoccum sp. These differences suggest that the different products used in grapevine production have impacts in fungal endophytic composition. Further investigation of the identified fungi with respect to their antagonistic characteristics and potential use in plant protection to ensure food safety is now in course.

Identificador

Varanda et al., 2016

1525–1536

http://www.sciencedirect.com/science/article/pii/S1878614616301040

http://hdl.handle.net/10174/19669

120

Fungal Biology

ICAAM

carlavaranda@uevora.pt

monicadmportella@hotmail.com

pmateratski@uevora.pt

miguel.landum@gmail.com

iclara@uevora.pt

mrff@uevora.pt

581

http://dx.doi.org/10.1016/j.funbio.2016.08.002

Idioma(s)

eng

Direitos

openAccess

Palavras-Chave #Biological control #Conventional mode #Endophytes #Vineyards
Tipo

article