菌核病是一种流行和破坏性疾病的原因,它袭击了许多园艺粮食作物,比如生菜。这种土壤传播的坏死真菌病原体每年在全球生菜生产中造成重大的经济损失。此外,目前用于管理和对抗疾病的方法,比如生物控制,是不够的。在这项研究中,在波兰中部(罗兹省)种植了三个生菜品种(一个脆皮和两个红绿生菜品种),众所周知的波兰园艺地区。在夏季和初秋,莴苣品种在对照和菌核链球菌感染的田地中生长。生菜品种(Templin,LolloRossa,和LolloBionda)在表型和真菌感染的存活率方面有所不同。在两个植被季节中,与其他品种相比,脆皮冰山Templin最容易感染硬核链球菌。酚类化合物的总含量,黄酮类化合物,花青素在品种间变化,在感染过程中波动。此外,酚类物质含量受植被季节和气温等环境因子变化的影响,湿度,湿度土壤温度,和pH。酚类物质含量增加最多,受感染植物中的类黄酮和花青素,在两种作物的叶红LolloRossa品种中都观察到。然而,夏季作物的LolloRossa和秋季作物的LolloBionda对真菌的存活率/抗性最高。
Sclerotinia sclerotiorum is a cause of a prevalent and destructive disease that attacks many horticultural food crops, such as
lettuce. This soil-borne necrotrophic fungal pathogen causes significant economic losses in worldwide
lettuce production annually. Furthermore, current methods utilized for management and combatting the disease, such as biocontrol, are insufficient. In this study, three cultivars of
lettuce (one Crispy and two Leafy cultivars of red and green
lettuce) were grown in central Poland (Lodz Voivodeship), a widely known Polish horticultural region. In the summer and early autumn,
lettuce cultivars were grown in control and S. sclerotiorum-infected fields. The
lettuce cultivars (Templin, Lollo Rossa, and Lollo Bionda) differed phenotypically and in terms of the survival of the fungal infection. The Crispy iceberg Templin was the most susceptible to S. sclerotiorum infection compared to the other cultivars during both vegetation seasons. The total content of phenolic compounds, flavonoids, and anthocyanins varied among cultivars and fluctuated during infection. Moreover, phenolic content was affected by vegetation season with alterable environmental factors such as air temperature, humidity, soil temperature, and pH. The most increased levels of phenolics, both flavonoids and anthocyanins in infected plants, were observed in the Leafy red Lollo Rossa cultivar in both crops. However, the highest survival/resistance to the fungus was noticed for Lollo Rossa in the summer crop and Lollo Bionda in the autumn crop.