Open AccessNitrate reductase activity of a cyanobacterium Phormidium uncinatum after cyanophage LPP‐1 infection
Author(s) -
Bisen P.S.,
Bagchi S.N.,
Audholia Surabhi
Publication year - 1986
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1986.tb01214.x
Subject(s) - nitrate reductase , biology , cyanobacteria , nitrate , glycogen , incubation , nitrogen assimilation , assimilation (phonology) , bacteria , microbiology and biotechnology , biochemistry , botany , ecology , linguistics , genetics , philosophy
The cellular glycogen pool and nitrate reductase activity were measured in the cyanobacterium Phormidium uncinatum after infection with cyanophage LPP‐1, under both light and dark conditions. While dark incubation of the cyanobacterium reduced the glycogen level, the nitrate reductase (NR) activity remained almost unchanged. Furthermore, cyanophage multiplication enhances cellular glycogen level and NR activity in both illuminated and dark‐incubated cyanobacterial cultures. Cyanophage‐mediated increase in host nitrate assimilation appears to support the high protein demand for its reproductive cycle.