Figure 1.
Anatomy of Lithops aucampiae A i).
Un-earthed plant, lateral view; ii) Plant face and iii) vertical section through leaf transect. Bar = 10 mm B longitudinal leaf transect showing epidermis under crossed-polarised light (i, ii, iii), UV (iv, v, vi) and white light (vii, viii, ix). Scale bar = 50 µm.
Figure 2.
Photosynthetic physiology of L. aucampiae.
Concentration of: A Chlorophyll a B Chlorophyll b and C Carotenoids, determined by HPLC. D chlorophyll a: b. n = 3±SE. E Operating efficiency of photosystem II (ФPSII) F Non-Photochemical Quenching (NPQ). n = 36,±SE. Bars sharing the same letter are not statistically different at P<0.05.
Figure 3.
UV absorbance traces for metabolite identification.
UV traces showing absorbance spectra and putative ID of metabolites obtained through HPLC-PDAD.
Table 1.
Metabolite identification by HPLC.
Table 2.
Putative metabolites in L. aucampiae sampled pre-dawn and pre-dusk (n = 3). *P<0.05, Student's T-test.