Effects of Arthrospira platensis Extract on Physiology and Berry Traits in Vitis vinifera

Plants

Paolo Storchi¹  Linda Salvi²  Alberto Niccolai²  Francesca Paoli²  Liliana Rodolfi²  GiovanBattista Mattii²  Eleonora Cataldo²  Sofia Sbraci²  MarioR. Tredici² 

[1] Council for Agricultural Research and Economics, Research Centre for Viticulture and Enology (CREA-VE), 52100 Arezzo, Italy;Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, 50144 Florence, Italy;

关键词: leaf gas exchanges;    biostimulant;    spirulina;    cyanobacteria;    berry weight;    grape quality;   

DOI  :  10.3390/plants9121805

来源: DOAJ

【 摘 要 】

Several advantages on physiology, productivity, and grape quality have been reported for grapevine treated with seaweed extracts, but little is known about the importance of cyanobacterial-based biostimulants in viticulture. The purpose of this pioneering work was to analyze the broad-spectrum effects of the Arthrospiraplatensis F&M-C256 extract on Vitis vinifera L. cv. Pinot Nero grown in pots in optimal conditions and under water stress. To evaluate the effects, major physiological parameters of the plants and the quali-quantitative parameters of grape were analyzed. According to the results obtained in this study, ameliorating effects in leaf gas exchanges induced by A. platensis F&M-C256 treatments were detected in both irrigation regimes. Above all, A. platensis F&M-C256 allowed keeping stomata open without negative consequences in water potential in treated vines under water-stress conditions. In terms of berry traits, A. platensis F&M-C256-treated vines presented higher berry weight in comparison with untreated vines in both water regimes and improved berry composition in treated vines subjected to drought. The results of the present study demonstrated an A. platensis-dependent physiological response in case of abiotic stress, which prominently affects grape traits at harvest.

【 授权许可】

Unknown