Instability of an Aflatoxin-Producing Strain of Aspergillus Parasiticus

Mayne, Ruth Y.; Bennett, Joan W.; Tallant, John D.

doi:10.1080/00275514.1971.12019146

Cited by 19 publications

(5 citation statements)

References 7 publications

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“…For N . crassa (Perkins, 1962) and Asp.parasiticus (Mayne et al, 1971) 5-7 years is reported. The Fungal Genetics Stock Center, California maintains conidial strains of Neurospora spp.…”

mentioning

confidence: 99%

“…Other fungi preserved successfully were Aspergillus nidulans (Barrett et al, 1965), Asp. parasiticus (Mayne, Bennett & Tallant, 1971), Rhodotorula sp. (Reinhardt, 1966), Claviceps paspali (Mizrahi & Miller, 1968), Ustilago rnaydis (Puhalla, 1968), Endothia parasitica (Puhalla & Anagnostakis, 1971), Saccharomyces cerevisiae (Grivell & Jackson, 1969), Candida spp.…”

mentioning

confidence: 99%

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The Preservation of Bacteria and Fungi on anhydrous Silica Gel: an Assessment of Survival over Four years

Trollope

1975

Journal of Applied Bacteriology

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The preservation method of Perkins (1962) using suspensions in skim‐milk was used to preserve 33 bacteria and 22 fungi on anhydrous silica gel. During storage at room temperature, 64% of the bacteria and 77% of the fungi survived 1 year or more. Storage at 4° often increased the survival period c. 2‐ to 3‐fold: 73% of the bacteria and all 12 of the fungi tested at 4° survived > 1 year. At the last testing, 60% of the bacteria and 36% of the fungi were still viable after storage at 4° for periods between 3 and 4 years. The Gram positive bacilli tended to survive the silica gel preservation process better than most Gram negative bacilli. Some factors influencing survival after preservation on silica gel are discussed; the results support the use of a closed storage tube.

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“…For N . crassa (Perkins, 1962) and Asp.parasiticus (Mayne et al, 1971) 5-7 years is reported. The Fungal Genetics Stock Center, California maintains conidial strains of Neurospora spp.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

The Preservation of Bacteria and Fungi on anhydrous Silica Gel: an Assessment of Survival over Four years

Trollope

1975

Journal of Applied Bacteriology

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“…After successive subculture, strains often encounter the issue of degeneration, resulting in a decline in desirable traits and a significant decrease in virulence [ 110 , 111 ]. Continuous cultivation resulted in Aspergillus flavus -reduced spore production, the proliferation of aerial hyphae and inability to produce sclerotia [ 112 , 113 , 114 ]. The pathogenicity of strains can also be influenced by factors like medium composition, environmental conditions, and contamination [ 115 ].…”

Section: Problems and Development Trend Of Mycopesticidesmentioning

confidence: 99%

The Registration Situation and Use of Mycopesticides in the World

Jiang,

Wang

2023

JoF

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Mycopesticides are living preparations that use fungal cells, such as spores and hyphae, as active ingredients. They mainly include mycoinsecticides, mycofungicides, mycoherbicides and nematophagous fungi. The utilization of fungi for controlling agricultural pests can be traced back to approximately 1880, when entomopathogenic fungi were initially employed for this purpose. However, it was not until 1965 that the world’s first mycopesticide, Beauveria Bassiana, was registered as Boverin® in the former Soviet Union. In past decades, numerous novel mycopesticides have been developed for their lower R&D costs, as well as the environmentally friendly and safe nature. In this review, we investigated the mycopesticides situation of registration in USA, EU, China, Canada and Australia. Superisingly, it was found that the registered mycopesticides are extremely raised in recent years. Currently, the insecticides, fungicides (nematocides) and herbicides were respectively registered 27, 53 and 8 fungal strains. This paper also analyzes the main problems currently faced by mycopesticides and offers suggestions for their future development.

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“…Spore concentration Most A. parasiticus strains are fairly stable in afl atoxin production in culture; however, Mayne et al (1971) found strain M-3 (the source of NRRL 2999) to be unstable. They reported that six weekly successive mass spore transfers onto agar media led to signifi cant reductions in the amount of afl atoxin produced.…”

Section: Culture Conditions Infl Uencing Afl Atoxin Productionmentioning

confidence: 99%