Figure 6.

Second derivative absorbance spectra. Second derivative transformed spectra of Haberlea rhodopensis (left) and Deinostigma eberhardtii (right) during desiccation and subsequent rehydration. Arrows indicate specific wavelengths of water species assigned as S_r (1346 nm) – protonated water clusters, S₀ (1412 nm) – free water molecules, S₁ (1440 nm) - water molecules with 1 hydrogen bond, S₂ (1462 nm) - water molecules with 2 hydrogen bonds, S₃ (1490 nm) - water molecules with 3 hydrogen bonds, and S₄ (1650nm) - water molecules with 4 hydrogen bonds^42,43.