在两种Helleborus物种中,花的奖励特征在性阶段之间发生变化
Aneta Sulborska-Różycka1, Bożena Denisow2, Monika Strzałkowska-Abramek1
1Department of Botany and Plant Physiology, University of Life Sciences in Lublin, 15 Akademicka St, Lublin, 20 - 950, Poland.
Scientific reports
|April 10, 2025
概括
欧洲的Helleborus物种提供花蜜和花粉15-17天,花蜜的组成随着时间的推移而变化. 熊蜂和蜜蜂在这些植物上食,熊蜂更喜欢Helleborus viridis ssp. 维里迪斯. 维里迪斯.
科学领域:
- 植物学 植物学
- 生态生态学 生态生态学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 这种植物是Helleborus viridis ssp. 维里迪斯和Helleborus purpurascens是欧洲种类的长寿花朵.
- 这些花长时间提供花蜜和花粉,吸引各种授粉者.
研究的目的:
- 为了研究两个欧洲Helleborus物种的花蜜和花粉吸引者和访客.
- 在两个开花季节分析花蜜的可用性,糖的组成和授粉者相互作用.
主要方法:
- 在两个开花季的实地观测和花蜜分析.
- 量化花蜜量,糖质量和糖度.
- 鉴定和量化花蜜糖 (糖糖,麦芽糖,三糖,葡萄糖,果糖).
- 观察授粉者访问模式 (大蜂,蜜蜂).
主要成果:
- 花朵提供了15-17天的花蜜,花蜜和糖质是男性偏的.
- H. viridis ssp. 这种植物的种类. 与H. purpurascens相比,viridis的蜜和糖质量大约是H. purpurascens的两倍.
- 蜜汁的组成因性阶段而异,在雌性阶段中糖占主导地位,果糖在后期增加.
- 熊蜂是H. viridis ssp.的主要授粉者. 黄蜂和蜜蜂都同样访问了H. purpurascens,而黄蜂和蜜蜂也同样访问了H.
结论:
- 这两种Helleborus物种都为授粉者提供了大量的花蜜和花粉资源.
- 花蜜的特征,包括数量和糖分的组成,在花的整个生命周期中都会发生变化,并且在物种之间有所不同.
- 在两种Helleborus物种之间,传粉者群落各不相同,在H. viridis ssp.中,大黄蜂发挥着主导作用. 病毒的授粉. 病毒的授粉.
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