Co-ordination in Morphological Leaf Traits of Early Diverging Angiosperms Is Maintained Following Exposure to Experimental Palaeo-atmospheric Conditions of Sub-ambient O2 and Elevated CO2.

摘要: In order to be successful in a given environment plant should invest vein network and stomatal distribution that ensures balance between both water supply demand. Vein density (Dv) (SD) have been shown strongly positively correlated response range of environmental variables more recently evolved species, but the extent this relationship has not confirmed earlier diverging lineages. examine effect changing atmosphere on Dv SD, five early-diverging species representing two different reproductive grades were grown for seven months palaeo-treatment comprising an O2:CO2 ratio occurred multiple times throughout evolutionary history. Results show species-specific SD responses palaeo-treatment, however we strong under modern ambient atmospheric composition is maintained following exposure palaeo-treatment. This suggests inter-specific co-ordination traits our study even relatively extreme change. supports existing function proxies use distance endings stomata (Dm) infer palaeo-physiology.