Ma Yongpeng, Yao Gang, Ren Yongquan, Liu Detuan, Shen Yuanting, Huang Wei, Xu Yuewen, Barrett Spencer C H, Sun Hang, Song Bo
Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations/State Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, China.
College of School of Eco-Environmental Engineering, Guizhou Minzu University, China.
Natl Sci Rev. 2025 May 16;12(7):nwaf195. doi: 10.1093/nsr/nwaf195. eCollection 2025 Jul.
Water serves diverse functions in plant growth and reproduction. Here, we report a novel strategy in the terrestrial karst plant analogous to amniotic fluid in mammals. Developing flower buds enclosed in 'womb-like' bracts are completely immersed in fluids and protected against excessive temperature and desiccation. The reservoir of water also likely limits drought and calcium stress in the highly specialized abiotic conditions of karst habitats.
水在植物生长和繁殖中发挥着多种功能。在此，我们报告了一种陆生喀斯特植物中的新策略，类似于哺乳动物中的羊水。包裹在“子宫状”苞片内发育的花芽完全浸没在液体中，免受过高温度和干燥的影响。在喀斯特生境高度特殊的非生物条件下，水的储存库也可能限制干旱和钙胁迫。
