Environmental plasticity of Pinot noir grapevine leaves: A trans-European study of morphological and biochemical changes along a 1,500-km latitudinal climatic gradient
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články
PubMed
28792065
DOI
10.1111/pce.13054
Knihovny.cz E-zdroje
- Klíčová slova
- carotenoids, climate, global radiation, grapevine, latitude, morphology, phenolic compounds, plasticity, ultraviolet radiation, α-tocopherol,
- MeSH
- absorpce radiace MeSH
- alfa-tokoferol analýza MeSH
- analýza hlavních komponent MeSH
- antioxidancia metabolismus MeSH
- biomasa MeSH
- fenoly analýza MeSH
- karotenoidy analýza MeSH
- listy rostlin anatomie a histologie metabolismus fyziologie účinky záření MeSH
- metabolom MeSH
- podnebí * MeSH
- ultrafialové záření MeSH
- Vitis anatomie a histologie metabolismus fyziologie účinky záření MeSH
- xanthofyly analýza MeSH
- zeměpis MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Evropa MeSH
- Názvy látek
- alfa-tokoferol MeSH
- antioxidancia MeSH
- fenoly MeSH
- karotenoidy MeSH
- xanthofyly MeSH
A 2-year study explored metabolic and phenotypic plasticity of sun-acclimated Vitis vinifera cv. Pinot noir leaves collected from 12 locations across a 36.69-49.98°N latitudinal gradient. Leaf morphological and biochemical parameters were analysed in the context of meteorological parameters and the latitudinal gradient. We found that leaf fresh weight and area were negatively correlated with both global and ultraviolet (UV) radiation, cumulated global radiation being a stronger correlator. Cumulative UV radiation (sumUVR) was the strongest correlator with most leaf metabolites and pigments. Leaf UV-absorbing pigments, total antioxidant capacities, and phenolic compounds increased with increasing sumUVR, whereas total carotenoids and xanthophylls decreased. Despite of this reallocation of metabolic resources from carotenoids to phenolics, an increase in xanthophyll-cycle pigments (the sum of the amounts of three xanthophylls: violaxanthin, antheraxanthin, and zeaxanthin) with increasing sumUVR indicates active, dynamic protection for the photosynthetic apparatus. In addition, increased amounts of flavonoids (quercetin glycosides) and constitutive β-carotene and α-tocopherol pools provide antioxidant protection against reactive oxygen species. However, rather than a continuum of plant acclimation responses, principal component analysis indicates clusters of metabolic states across the explored 1,500-km-long latitudinal gradient. This study emphasizes the physiological component of plant responses to latitudinal gradients and reveals the physiological plasticity that may act to complement genetic adaptations.
Agricultural and Forestry Institute of Nova Gorica Pri hrastu 18 5270 Nova Gorica Slovenia
CNR IBIMET Via Caproni 8 50144 Florence Italy
Department of Plant Biology University of Pécs Ifjúság u 6 7624 Pécs Hungary
Global Change Research Institute CAS v v i Bělidla 4a 60300 Brno Czech Republic
Citace poskytuje Crossref.org
