文章基本信息

标题：Biostimulation as a Means for Optimizing Fruit Phytochemical Content and Functional Quality of Tomato Landraces of the San Marzano Area
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作者：Youssef Rouphael ; Giandomenico Corrado ; Giuseppe Colla 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2021
卷号：10
期号：5
页码：926
DOI：10.3390/foods10050926
出版社：MDPI Publishing
摘要：The effect of plant biostimulation on fruits of traditional tomato germplasm is largely unknown. We examined how a tropical plant-derived biostimulant impacts the nutritional, functional, and compositional characteristics of tomato fruits from four landraces, collected in the San Marzano (SM) tomato Protected Designation of Origin (PDO) region, by profiling primary and secondary metabolites. Biostimulation was not able to completely reshuffle the morpho-physiological and nutritional profile of the four landraces. Their distinct phytochemical profile indicated a genotype-specific tuning of the analyzed traits, which also included an improved yield and fruit quality. Biostimulation of SM1 and SM3 increased photosynthetic accumulation of carbohydrate reserves, improved mineral nutrient use efficiency and consequently, yield ( 21% and 34%, respectively). Moreover, biostimulation augmented the nutraceutical properties of the SM2 landrace. Interestingly, the plant-derived product increased in all genotypes lycopene, but not polyphenol accumulation in fruits. Our results show the potential of biostimulatory applications towards optimizing the fruit quality of the acclaimed SM landraces, which is suitable to satisfy both the rising consumer demand for premium traditional tomatoes and the technological needs of the food industry.
关键词：Solanum lycopersicum L.; genetic variability; quality; food composition; biostimulant; plant tropical extract Solanum lycopersicum L;; genetic variability ; quality ; food composition ; biostimulant ; plant tropical extract