Die physiologischen Bedingungen der Pigmentbildung von Merulius lacrymans domesticus Falck

Zoberst, Werner

doi:10.1007/bf00409468

Cited by 12 publications

(2 citation statements)

References 36 publications

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“…Cultures in the dark showed a much greater tendency to produce mycelium that grew up the sides of the flask to the plug. (Zoberst, W. , 1952).…”

Section: Corticium Praticolamentioning

confidence: 99%

A guide to the literature on certain effects of light on fungi : reproduction, morphology, pigmentation, and photoropic phenomena /

Bassler¹,

Marsh²,

Taylor³

1959

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Achlya recurva. Cultures were placed in darkness and in diffuse daylight on top of a laboratory table at approximately the same temperature. They were examined after 72 hours. Dark cultures were then left in daylight for an additional 72 hours. Light was necessary for the germination of zygotes. (Ziegler, A. W. , 1948). Albugo occidentalis. Hanging-drop slides of conidia were arranged in a chamber at 12°C so that light from a 3-cell flashlight fell on them, while others were placed in the dark. Results after 48 hours showed that spores germinated equally well in light or darkness, (Raabe, R. D,, and G. S. Pound, 1952). Allomyces arbuscula. Cultures exposed to darkness for 7 days and to diurnal illumination for the same period formed zones under both conditions. (Hatch, W. R, , 1936). Blakeslea trispora. Sporangia formed profusely in bright light, subdued light, and total darkness. The shortest sporangiophores were produced in bright light. During their development the sporangiophores were distinctly phototropic. (Weber, G, F. , and F, A, Wolf, 1927). Blastocladiella emersonii. A normal strain and a carotenoid-bearing mutant grew more rapidly in light than in darkness. Illumination induced an increase in CO2 fixation and concomitantly a large increase in the labeled succinate and a decrease in the labeled ketoglutarate pools in the organism. Both labeled and unlabeled glucose were consumed more rapidly in the light than in the dark. Cell-free preparations mediated an enzymatic TPN-dependent oxidation of isocitrate which was inhibited by bicarbonate and light. These same preparations mediated an enzymatic oxidation of reduced TPN which was accelerated by ketoglutarate and bicarbonate; simultaneously, ketoglutarate was carboxylated. These reactions were further accelerated by light. The mechanism of the effect of illumination was tentatively interpreted in terms of a lightstimulated cyclic process, the S.K.I, cycle. This involved carboxylation of ketoglutarate, via isocitric dehydrogenase and perhaps citritase, to succinate and oxalate, and the further carboxylation of some of the succinate to yield ketoglutarate once again. (Cantino, E. C. , and E. A. Horenstein, 1956). Blastocladiella emersonii. Submerged, liquid cultures proliferated more rapidly and produced greater yields of plant material in white light than in darkness. Illuminated, growing cultures of orange plants grew more rapidly in bicarbonate media and fixed more CO2 per unit weight of organism produced, than those incubated in darkness. The quantity of light necessary to induce the effect was not high. The degree of stimulation rose linearly with increasing intensity to about 100 f. c. which yielded maximum results; further increase in intensity up to 300 f. c. neither stimulated nor inhibited. The effective spectrum was in the range of 400-500 m^.

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“…Cultures in the dark showed a much greater tendency to produce mycelium that grew up the sides of the flask to the plug. (Zoberst, W. , 1952).…”

Section: Corticium Praticolamentioning

confidence: 99%

A guide to the literature on certain effects of light on fungi : reproduction, morphology, pigmentation, and photoropic phenomena /

Bassler¹,

Marsh²,

Taylor³

1959

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“…On the other hand, ZoBERST (9) reported that the formation of a yellow pigment (an anthraquinone derivative) by Merulius lacrymans (Basidiomycetes) occurred only incompletely when the mold was grown in synthetic media containing known amino acids.…”

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Red Pigment Formation by Interaction of Molds Part 6 Medium Components Affecting Formation of the Pigments

Nasuno

Asai

1962

J. Gen. Appl. Microbiol.

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It has been reported in our previous papers (1-5) that (i) the red pigments are produced by interaction of Penicillium verruculosum with Trichoderma viride or with several other strains of molds species, that (ii) the degree of pigment formation depends largely upon the balance of activities of both strains in the mixed culture, that (iii) the optimal conditions for pigment formation, such as of pH, temperature and oxygen supply coincide with those for mycelial growth, and that (iv) the process of sporulation of P. verruculosum plays the most significant role in the determining the degree of the cobiontic formation of the red pigments.The present study deals with the effects of the components of nutrients contained in the culture media, especially of carbonic and nitrogenous materials, upon the cobiontic pigment formation in question. EXPERIMENTAL METHODS(1) Microorganisms: P. verruculosum L 9 and T. viride L 6. (2) Media : Liquid or agar glucose-peptone media described in a previous paper (1).(3) Inoculation: Agar plates were inoculated with spores of the test molds using an inoculum hook, while the liquid media were inoculated with water-suspensions of the spores using a sterilized pipette. The spore suspensions were prepared as reported in the preceding paper (5). The spores of both strains which had been fully matured on the koji extract agar slant were separately suspended in sterilized water containing 0.050 of Tween 80 to make suspensions containing 108 each of spores per ml. Mixed spore suspensions were also prepared by mixing equal volumes of each suspension containing respectively, per ml. 108 spores of P. verruculosum L 9 and 5 x 108 spores of T. viride L 6. To obtain uniform inocula, the spore suspensions were shaken vigorously before they were seeded to experimental cultures.(4) Main cultures : In the case of plate cultures, as reported in previous papers (4, 5), spores of both strains were simultaneously inoculated at a distance of about 3 cm on the same plate and incubated at 30° for 3 to 7 days. 74

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Betriebsstoffwechsel

Rippel-Baldes

1955

Grundriss Der Mikrobiologie

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Die physiologischen Bedingungen der Pigmentbildung von Merulius lacrymans domesticus Falck

Cited by 12 publications

References 36 publications

A guide to the literature on certain effects of light on fungi : reproduction, morphology, pigmentation, and photoropic phenomena /

A guide to the literature on certain effects of light on fungi : reproduction, morphology, pigmentation, and photoropic phenomena /

Red Pigment Formation by Interaction of Molds Part 6 Medium Components Affecting Formation of the Pigments

Betriebsstoffwechsel

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