Abstract:
:The effects of exogenously added L-phenylalanine (L-Phe) on the activities of L-phenylalanine ammonia-lyase (PAL) and 3, 4-dimethoxybenzyl alcohol (veratryl alcohol, VA) biosynthesis in ligninolytic cultures of Phanerochaete chrysosporium were investigated. Increasing PAL activity was detected in low nitrogen (LN) culture but not in high nitrogen (HN) culture. The addition of L-Phe into the LN culture caused a 25-fold increase in enzyme activity, which clearly shows that L-Phe, a substrate of the enzyme, served as an inducer of PAL. The increase in activity of PAL triggered by nitrogen starvation was correlated with biosynthesis of VA. However, PAL induced by the added L-Phe did not promote VA biosynthesis but suppressed the biosynthesis probably due to NH(4)(+) released from L-Phe.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Hattori T,Nishiyama A,Shimada Mdoi
10.1111/j.1574-6968.1999.tb08742.xkeywords:
subject
Has Abstractpub_date
1999-10-15 00:00:00pages
305-9issue
2eissn
0378-1097issn
1574-6968pii
S0378109799004279journal_volume
179pub_type
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