Peer Review #2 of "Isolation, growth, and nitrogen fixation rates of the Hemiaulus-Richelia (diatom-cyanobacterium) symbiosis in culture (v0.2)"

Abstract

Nitrogen fixers (diazotrophs) are often an important nitrogen source to phytoplankton nutrient budgets in N-limited marine environments. Diazotrophic symbioses between cyanobacteria and diatoms can dominate nitrogen-fixation regionally, particularly in major river plumes and in open ocean mesoscale blooms. This study reports the successful Isolation, Growth, and Nitrogen Fixation Rates of the Hemiaulus-Richelia (Diatom-Cyanobacterium) Symbiosis in Culture