Spore Germination and Carbon Metabolism in <i>Fusarium solani</i>. III. Carbohydrate Respiration in Relation to Germination

Cochrane, Vincent W.; Berry, Spencer J.; Simon, Frank G.; Cochrane, Jean Conn; Collins, Calden B.; Levy, Jay A.; Holmes, P. K.

doi:10.1104/pp.38.5.533

Cited by 21 publications

(16 citation statements)

References 39 publications

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“…Tt is the imllmeediate producit of the assimilation of gltucose in macrospores of Fusariumo solanii (7). It has also been reporte(l in Piricutlaria ory>ae where it will accumuiitlate to 10 % of the (dry weight when grown in cutilture wi,th stucroose as a carbon source (27).…”

Section: Discussionmentioning

confidence: 99%

Distribution of the Products of Photosynthesis between Powdery Mildew and Barley

Edwards

Allen

1966

Plant Physiol.

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'Sionnary. The photosynthetic assimilation of 1 CO., has been studied in healthy a,nd miiil(lew-infected barley. The parasite wvas separated from the host by removing the myceliumii with a camel's hai,r brugh. The ethanol soluble mentabolites of the parasite, infected host and healthy host were extracted, separated by paper chronmatography and individually i'den'tified. From this wvork it appears ithat there is a rapid movement of la)bel from host to parasite 'nainly in the form of sucrose which is then quickly metabolized into many combpounds. Tihe (2,16,20), and a decrease in photosynthetic ability ( 1,17,18). There are also increases in several organicc consti,tuenits (9,12,19) as well as an increase in dry weight (28)

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Section: Discussionmentioning

confidence: 99%

Distribution of the Products of Photosynthesis between Powdery Mildew and Barley

Edwards

Allen

1966

Plant Physiol.

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“…For A. niger alanine is also stimulatory, but for R. arrhizus proline can be replaced by ornithine, arginine or asparagine only when phosphate is also present. Cochrane, Cochrane, Simon & Spaeth (1963) showed that, in addition to glucose and a nitrogen source, the macrospores of Fusarium solani required a factor present in yeast extract which could be partially replaced by several amino acids but not by carbohydrates.…”

Section: Introductionmentioning

confidence: 99%

The Metabolism of Triglycerides by Spores of Penicillium roqueforti

Lawrence¹

1967

Journal of General Microbiology

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The ability of suspensions of washed spores of Penicillium roqueforti to oxidize triglycerides was markedly stimulated by L-proline, L-alanine and L-serine, although all the sources of nitrogen tested were effective over extended periods to different degrees. The rate of oxidation was further increased by the addition of certain sugars, although these were without effect in the absence of a nitrogen source. The same compounds that stimulated methylketone formation from triglycerides also promoted the rapid germination of spores, suggesting that common reactions were involved.The maximum yield of methylketone obtained was 25 yo from trioctanoin and trihexanoin at pH 6.0, with lower yields from tridecanoin, tributyrin and trilaurin. The addition of sodium azide, and to a lesser extent of 2,4-dinitrophenol and certain organophosphorus compounds, inhibited the oxidation of triglycerides. The possible role of fungal esterases in spore germination is discussed.

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“…Glucose, on the other hand, will undergo rapid catabolism inside the cells resulting in production of numerous 2-and 3-carbon compounds and provided they undergo transamination near the site of synthesis, the specific activity of lycomarasmin will be relatively high. Unless this transamination process occurs near the site of synthesis, the release of the freshly derived amino acids into the general amino acid pool would consequently give specific activities not Cochrane et al (12) supplied F. oxysporum with gl~cose-U-'~C and subsequently demonstrated that less than 5% of the glucose label remains in the medium. The present finding of a relatively higher incorporation of glucose into lycomarasmin as compared with the amino acids may therefore simply indicate that permeability barriers exist.…”

Section: Resultsmentioning

confidence: 99%

Biosynthesis of Lycomarasmin

Popplestone¹,

Unrau²

1973

Can. J. Chem.

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Cultures of Fusarium oxysporum Schl. emend. Sny. et Hans. f lycopersici (Sacc.) Sny. et Hans. grown on a liquid medium with glucose as the principal carbon source produce, among other products, the phytotoxin lycomarasmin. Acid hydrolysis of lycomarasmin results in the formation of aspartic acid, glycine, and pyruvic acid. Tracer studies showed that glycine-U-I4C, L-serine-U-14C, DL-aspartic acid-4-14C, DL-alanine-1-14C, and glucose-U-14C served as relatively efficient precursors of the lycomarasmin molecule. DL-Aspartic acid-4-I4C was incorporated into the 4-carbon fragment without label scrambling. Glycine was found to be the most efficient precursor of the 2-carbon fragment while glucose afforded the most efficient and direct route for the 3-carbon fragment.

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Spore Germination and Carbon Metabolism in Fusarium solani. III. Carbohydrate Respiration in Relation to Germination

Cited by 21 publications

References 39 publications

Distribution of the Products of Photosynthesis between Powdery Mildew and Barley

Distribution of the Products of Photosynthesis between Powdery Mildew and Barley

The Metabolism of Triglycerides by Spores of Penicillium roqueforti

Biosynthesis of Lycomarasmin

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