Comparing photosynthetic characteristics of Isoetes sinensis Palmer under submerged and terrestrial conditions.

ABSTRACT: Crassulacean acid metabolism (CAM) is widespread in terrestrial and aquatic species, plastic in response to environmental changes. Isoetes L. is one of the earliest basal vascular plants and CAM is popular in this genus. Isoetes sinensis Palmer is an amphibious species, alternating frequently between terrestrial and aquatic environments. Given this, we investigated and compared photosynthetic characteristics over a diurnal cycle under submerged condition (SC) and terrestrial condition (TC). The results suggest that I. sinensis possesses a stronger CAM capacity under SC. Compared with under TC, titratable acidity levels and organic acid concentrations were more enriched under SC, whereas soluble sugar or starch and protein levels were lower under SC. Transcript analyses for nine photosynthe

SUBMITTER: Yang T 

PROVIDER: S-EPMC4669503 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature