isoëtes hypsophila/starch

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

Isoetes bolanderi dominates the littoral flora of Siesta (elevation 2,440 m) and Ellery (2,905 m) lakes in the Sierra Nevada Range of California, USA. Both lakes are sparesly vegetated and I. bolanderi maintained aboveground oven dry weight of 30-50 m-22 through most of the 1981 summer growing

The megasporocyte of Isoetes englemanni at the leptotene-zygotene interval of meiosis contains 4 disk-shaped proplastids about 12 mum in diameter. The disposition of these organelles in the cell is such that each of the four megaspores delimited during cytokinesis contains a single proplastid.

Isoetes sinensis Palmer (Isoetaceae) is a critically endangered fern that is a marsh plant (that is an aquatic or amphibious plant) in China. To evaluate damage or influence of lead (Pb) on cell ultrastructure in I. sinensis, we used 2000mg·L-1 Pb(NO3)2 solution to treat I. sinensis for 35d, and