Department of Microbiology and Genetics, University of Salamanca, 37007 Salamanca, Spain; Spanish-Portuguese Institute for Agricultural Research (CIALE), University of Salamanca, Spain.
Department of Microbiology and Genetics, University of Salamanca, 37007 Salamanca, Spain; Spanish-Portuguese Institute for Agricultural Research (CIALE), University of Salamanca, Spain; "Interacción Planta-Microorganismo" Associated Unit, USAL-CSIC (IRNASA), Salamanca, Spain.
Food Res Int. 2018 Sep;111:416-422. doi: 10.1016/j.foodres.2018.05.059. Epub 2018 May 24.
Strawberries (Fragaria × ananassa Duch.) are widely demanded by the consumers because they contain several bioactive compounds, mainly vitamin C and anthocyanins, which may be increased by biofertilization with some plant growth promoting bacteria. In this work we have analysed two bacterial strains, PEPV15 and PEPV16, from genera Phyllobacterium and Rhizobium, respectively, which under microcosms conditions were able to promote the strawberry growth, increasing the content of some bioactive compounds, such as vitamin C or organic acids. Here we have analysed the effect on bioactive compounds in strawberries from plants biofertilized with the strains PEPV15 and PEPV16 in field conditions. Under these conditions, the anthocyanin content was increased when plants were biofertilized with the strain PEPV15 and the pelargonidin-3-O-rutinoside content significantly increased. Besides, citric acid, vitamin C and epicatechin contents were significantly higher when either of the two strains was used as biofertilizer. Our results showed that the inoculation with Phyllobacterium and Rhizobium strains is a good agronomical practice, which improve the content of several bioactive compounds of strawberries increasing the beneficial effects on human health.
草莓（Fragaria ×ananassa Duch.）因其含有多种生物活性化合物而深受消费者欢迎，主要是维生素 C 和花青素，而这些化合物可以通过一些植物生长促进细菌的生物肥料来增加。在这项工作中，我们分析了来自 Phyllobacterium 和 Rhizobium 属的两个细菌菌株 PEPV15 和 PEPV16，它们在微宇宙条件下能够促进草莓生长，增加一些生物活性化合物的含量，如维生素 C 或有机酸。在这里，我们分析了在田间条件下用菌株 PEPV15 和 PEPV16 对生物肥料进行生物肥料处理的草莓中生物活性化合物的影响。在这些条件下，用 PEPV15 菌株对植物进行生物肥料处理会增加花色苷的含量，并且显著增加矢车菊-3-O-芸香糖苷的含量。此外，当使用两种菌株中的任何一种作为生物肥料时，柠檬酸、维生素 C 和表儿茶素的含量都显著升高。我们的结果表明，接种 Phyllobacterium 和 Rhizobium 菌株是一种很好的农业实践，可以提高草莓中几种生物活性化合物的含量，从而增加对人体健康的有益影响。
