heterocyst

heterocyst读音音标

英 [\'hetərəʊsɪst]

美 [\'hetərəˌsɪst]

heterocyst意思解释

n.

异形细胞；

英英释义

Heterocysts are specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria, such as Nostoc punctiforme, Cylindrospermum stagnale, and Anabaena sphaerica. They fix nitrogen from dinitrogen (N2) in the air using the enzyme nitrogenase, in order to provide the cells in the filament with nitrogen for biosynthesis.