English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The unicellular cyanobacterium Gloeothece sp. PCC 6909 was grown diazotrophically in continuous culture. Various light-dark regimes and dilution rates were applied. Nitrogenase activity (acetylene reduction), oxygen-production and -consumption, and glycogen were measured over 24 h periods covering one complete light-dark cycle. Gloeothece fixed nitrogen predominantly in the light, concomitant with photosynthetic oxygen evolution. This result was found irrespective of the imposed light-dark regime or dilution rate. It is concluded that temporal separation of photosynthesis and nitrogen fixation is not obligatory in Gloeothece.

Diazotrophic growth of the unicellular cyanobacterium Gloeothece sp. PCC 6909 in continuous culture