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Open AccessArticle

Dissimilar Responses of Ancient Grapevines Recovered in Navarra (Spain) to Arbuscular Mycorrhizal Symbiosis in Terms of Berry Quality

Unidad Asociada al CSIC (EEAD, Zaragoza, ICVV, Logroño), Grupo de Fisiología del Estrés en Plantas (Departamento de Biología Ambiental), Facultad de Ciencias, Universidad de Navarra, c/Irunlarrea 1, 31008 Pamplona, Navarra, Spain
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Author to whom correspondence should be addressed.
These authors contributed equally to the work.
Agronomy 2020, 10(4), 473; https://doi.org/10.3390/agronomy10040473
Received: 4 March 2020 / Revised: 24 March 2020 / Accepted: 27 March 2020 / Published: 29 March 2020
(This article belongs to the Special Issue Contribution of Arbuscular Mycorrhizal Symbiosis to Crop Growth)
The exploitation of genetic diversity within agricultural plants, including grapevine, is suggested as a valuable tool to cope with the negative impacts of climate change on yield and crop quality. In some winegrowing regions of Europe, there is a renewed interest in knowing the grapevine genetic resources available, focusing on the prospection, recovery, and study of ancient cultivars typical of every zone. Grapevines are naturally associated with arbuscular mycorrhizal fungi (AMF), which provide some benefits to the host plant, although such effects depending on many factors, including variety. Therefore, the aim of this research was to characterize the potential fruit quality of eight old grapevine varieties recovered in Navarre (northeastern of the Iberian Peninsula), associated or not with AMF. The study was carried out on fruit-bearing cuttings grown under controlled conditions (greenhouse). Overall, AMF inoculation reduced bunch and berry mass, as well as phenolic content in fruits. In some varieties, AMF association improved some berry traits by increasing the concentrations of soluble solids and anthocyanins; in others, berry colour, total phenolic and anthocyanin content were diminished in AMF-inoculated plants. The results, therefore, suggest that intraspecific diversity of old grapevines could include different abilities to respond to arbuscular mycorrhizal symbiosis. View Full-Text
Keywords: anthocyanins; intraspecific diversity; mycorrhizal association; old grapevine varieties; phenolic compounds; soluble sugars anthocyanins; intraspecific diversity; mycorrhizal association; old grapevine varieties; phenolic compounds; soluble sugars
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Antolín, M.C.; Izurdiaga, D.; Urmeneta, L.; Pascual, I.; Irigoyen, J.J.; Goicoechea, N. Dissimilar Responses of Ancient Grapevines Recovered in Navarra (Spain) to Arbuscular Mycorrhizal Symbiosis in Terms of Berry Quality. Agronomy 2020, 10, 473.

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