Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Changes in effective quantum yield (ϕPSII) during the experiment. Values relative to the initial values before the UV exposure are shown (mean ± SD, n = 3). a Zygnema sp. B, b Zygnema sp. C, c Zygnema sp. S. Black circles: V PA—young vegetative cells, PAR-UV-A (PA) treatment; black triangles: V PAB—young vegetative cells, PAR+UV-A+UV-B (PAB); gray squares: A PA—pre-akinetes, PA; gray rhomb: A PAB—pre-akinetes, PAB
