2002
DOI: 10.1128/aem.68.6.2666-2675.2002
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An Antifungal Protein from the Marine Bacterium Streptomyces sp. Strain AP77 Is Specific for Pythium porphyrae , a Causative Agent of Red Rot Disease in Porphyra spp

Abstract: A novel antifungal protein (SAP) was found in the culture supernatant of a marine bacterium, Streptomyces sp. strain AP77, and was purified. This protein was characterized by chemical, biochemical, and biological analyses. By using gel filtration, the molecular mass of SAP was estimated to be 160 kDa. Structural analysis of SAP by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and matrix-assisted laser desorption ionization-time of flight mass spectrometry suggested that SAP is composed of three het… Show more

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Cited by 43 publications
(24 citation statements)
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“…strain AP77 isolated from the seawater of Japan, which is specific for Pythium porphyrae, a causative agent of red rot disease in Porphyra spp (Woo et al 2002). The water surface microlayer of sea is still poorly explored, although it has been shown to contain a high density of metabolically active bacteria, often called bacterioneuston.…”
Section: Metabolite Production By Marine Streptomycesmentioning
confidence: 99%
“…strain AP77 isolated from the seawater of Japan, which is specific for Pythium porphyrae, a causative agent of red rot disease in Porphyra spp (Woo et al 2002). The water surface microlayer of sea is still poorly explored, although it has been shown to contain a high density of metabolically active bacteria, often called bacterioneuston.…”
Section: Metabolite Production By Marine Streptomycesmentioning
confidence: 99%
“…Red rot disease is caused by the fungal pathogen Phytium porphyrae affecting different Porphyra species, one of the most popular edible and extensively cultivated macroalga, especially in Asia. In Japan, the disease causes losses of about 40 to 60 million US$ every year (Woo et al 2002). Despite some knowledge of the pathogens and diagnosis of the diseases, little is known concerning the ecology of microbial pathogens of these macroalgae (Andrews 1976, Jaffray & Coyne 1996, Correa 1997; Table 3).…”
Section: Applied Aspects Of Bacterial-macroalgal Interactionsmentioning
confidence: 99%
“…In Porphyra farming, the "red rot" and "chytrid blight" diseases caused by oomycetous fungi Pythium porphyrae Takahashi et Sasaki and Olpidiopsis spp., respectively, cause significant losses in crop production (e.g., Woo et al 2002). The Porphyra diseases developed severely when the density of cultivation became larger (Japanese Society of Scientific Fisheries 1978; Ding and Ma 2005).…”
Section: Introductionmentioning
confidence: 99%