Abstract:
:We identified a polyketide synthase (PKS) gene, pksN, from a strain of Nectria haematococca by complementing a mutant unable to synthesize a red perithecial pigment. pksN encodes a 2,106-amino-acid polypeptide with conserved motifs characteristic of type I PKS enzymatic domains: beta-ketoacyl synthase, acyltransferase, duplicated acyl carrier proteins, and thioesterase. The pksN product groups with the Aspergillus nidulans WA-type PKSs involved in conidial pigmentation and melanin, bikaverin, and aflatoxin biosynthetic pathways. Inactivation of pksN did not cause any visible change in fungal growth, asexual sporulation, or ascospore formation, suggesting that it is involved in a specific developmental function. We propose that pksN encodes a novel PKS required for the perithecial red pigment biosynthesis.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Graziani S,Vasnier C,Daboussi MJdoi
10.1128/aem.70.5.2984-2988.2004keywords:
subject
Has Abstractpub_date
2004-05-01 00:00:00pages
2984-8issue
5eissn
0099-2240issn
1098-5336journal_volume
70pub_type
杂志文章abstract::This research documents an effect of reactor turbulence on the ability of gram-negative wastewater biofilm bacteria to actively transport l-aspartate via a binding-protein-mediated transport system. Biofilms which were not preadapted to turbulence and which possessed two separate and distinct aspartate transport syste...
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更新日期:1980-04-01 00:00:00
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更新日期:1996-05-01 00:00:00
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journal_title:Applied and environmental microbiology
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更新日期:1986-07-01 00:00:00