Origin of a Toxicity to Mycorrhiza in Wareham Heath Soil

Brian, P. W.; Hemming, H. G.; McGowan, J. C.

doi:10.1038/155637a0

Cited by 66 publications

(20 citation statements)

References 5 publications

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“…I n order to relate this as closely as possible to conditions under which antibiotics might naturally be produced, the majority of the antibiotics chosen for study were produced by fungi isolated from the Bagshot Sand type of soil, in which production of antibiotics under natural conditions has been suspected (Brian, Hemming & McGowan, 1945; Rayner, 1945). Furthermore, among the soils selected for study were soils from difl'erent levels of a Bagshot Sand soil profile.…”

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confidence: 99%

The Stability of Antibiotics in Soils

Jefferys

1952

Journal of General Microbiology

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SUMMARY:Ten antibiotics have been included in this study : eight of them were metabolic products of fungi isolated from soils of the Bagshot Sand type. Their stability in Bagshot Sand soils and in a neutral garden loam has been investigated. Some were more stable than others, the rate of inactivation varied from soil to soil, but all exhibited a fair degree of stability in some of the soils. Four types of inactivation could be distinguished: (1) The natural pH of the soil was sometimes that at which the antibiotic was intrinsically unstable ; this was noted specially with albidin, frequentin, gliotoxin, penicillin and viridin . ( 2 ) Inactivation caused by some form of biological activity, indicated by less rapid inactivation in heattreated than in untreated soil, was observed with griseofulvin, mycophenolic acid and patulin. (3) Adsorption on the soil was noticeable only in the case of streptomycin, the only basic antibiotic studied; acid-washed sand was able t o bind appreciable quantities of this antibiotic. (4) Some other form of inactivation, probably chemical in nature, was concerned in the inactivation of gladiolic acid, penicillin and streptomycin.

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confidence: 99%

The Stability of Antibiotics in Soils

Jefferys

1952

Journal of General Microbiology

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“…terlikowslcii has been shown (Brian, Hemming & McGowan, 1945;Brian, 1946) to be due to production of gliotoxin (C,,H,,N2S204 Grout ( (Bisby, 1943(Bisby, , 1945Zuck, 1946), showed neither type of activity. S .…”

Section: Detailed Consideration Of Resultsmentioning

confidence: 99%

Production of Antifungal and Antibacterial Substances by Fungi; Preliminary Examination of 166 Strains of Fungi Imperfecti

Brian¹,

Hemming²

1947

Journal of General Microbiology

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SUMMARY:One hundred and sixty-six strains of Fungi Imperfecti have been examined primarily for the production of antifungal substances, though antibacterial substances have also been sought in most cases.Antifungal substances were produced by several species of Aspergillus and Penicillium, Fusarium caeruleum, Metarrhizium glutinosum, Stachybotrys atra, Trichoderrna viride, Gliocladium catenulatum and Trichothecium roseum. Antibacterial substances were produced by species of Aspergillus, Fusarium, Penicillium, Stachybotrys and Trichoderma.The chemical nature of the substances responsible for this activity is known or can be suggested in some cases, but others are worthy of further investigation.

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“…(SO), A . fumigatus (113,155), Penicillium jenseni (29), P. obscurum Biourge (1 16), and Trichoderma viride (25,28,173,175). T .…”

Section: Gliutoxinmentioning

confidence: 99%

“…T . viride forms about 75 mg. of gliotoxin per liter of an acidified Weindling's medium (172) and can be grown in static, shake, or drip culture (28). Gliotoxin has general antibacterial activity and is active against many fungi including plant and a.nimal parasites.…”

Section: Gliutoxinmentioning

confidence: 99%

Antibacterial Substances from Fungi and Green Plants

Kavanagh¹

1947

Advances in Enzymology - And Related Areas of Molecular Biology

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Origin of a Toxicity to Mycorrhiza in Wareham Heath Soil

Cited by 66 publications

References 5 publications

The Stability of Antibiotics in Soils

The Stability of Antibiotics in Soils

Production of Antifungal and Antibacterial Substances by Fungi; Preliminary Examination of 166 Strains of Fungi Imperfecti

Antibacterial Substances from Fungi and Green Plants

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