Enzymological and Immunological Properties of Pectin Lyases from Bacteriocinogenic Strains of<i>Erwinia carotovora</i>

Itoh, Yoshifumi; Sugiura, Jun; Izaki, Kazuo; Takahashi, Hajime

doi:10.1080/00021369.1982.10865045

Cited by 2 publications

(2 citation statements)

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“…Unusual induction of pectin lyase by DNA damaging agents (mitomycin C, nalidixic acid, bleomycin, UV light) was reported in Erwinia carotovora subsp. carotovora9, 10,12,13). Subsequently, from the survey of pectin lyase production in the presence of mitomycin C, it was found that pectin lyase was a common trait among soft-rot Erwinia23).…”

Section: Introductionmentioning

confidence: 99%

Presence of DNA damaging agents in plants as the possible inducers of pectin lyases of soft-rot Erwinia.

Tsuyumu

Funakubo

Hori

et al. 1985

Jpn. J. Phytopathol.

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When the strains of E. chrysanthemi and E. carotovora subsp. carotovora were inoculate onto potato or radish disks, the activity of pectin lyase reached the same order as that of pectate lyase in some combination of the pathogen and plant. When time-course sample were taken after the addition of the extract of radish into the culture of E. chrysanth (EC183), the specific activities of both pectate lyase and pectin lyase were consistently elevated. The specific activities of both enzymes were also elevated, when E. chrysanthe (ALE8292P) was grown in the medium containing the ethanol extract from 12 different plants. Thus, some compound responsible for the induction of these enzymes seem to be commonly present in plants. Ten out of these 12 ethanol extracts from plants inhibited the growth of rec-strain more severely than that of rec+ strain of Bacillus subtilis (rec assay). Therefore, DNA damaging agents also seem to be commonly present in plants. Since the induction of pectin lyase in soft-rot Erwinia has been shown to occur only by DNA-dama ing agents, these DNA damaging agents found in plants may be responsible for the induction of pectin lyase at the infection site.

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Section: Introductionmentioning

confidence: 99%

Presence of DNA damaging agents in plants as the possible inducers of pectin lyases of soft-rot Erwinia.

Tsuyumu

Funakubo

Hori

et al. 1985

Jpn. J. Phytopathol.

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“…Many fungi, yeast [13] and bacteria [14] can produce this enzyme. Although the enzyme also has a plant source, it is technically and economically important to produce this enzyme in a microbial method [3].…”

Section: Introductionmentioning

confidence: 99%

Polygalacturonase Production by Aspergillus Niger Solid State Fermentation on Barley Bran and Sugar Beet Pulp Mixture

2020

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In this research, barley bran mixtures with sugar beet pulp were used for polygalacturonase enzyme production by Aspergillus niger fungus in solid state fermentation method for the first time. Effect of some factors including carbon sources relative composition, fermentation time, fermentation temperature, inoculation amount, and moisture content were investigated and optimized amounts were selected. Different mixtures of barley bran and sugar beet pulp with various relative compositions were studied and highest enzyme activity was found for 50% w/w of barley bran and sugar beet pulp. Incubation temperature of 30 °C, time duration of 7 days, moisture content of 80% w/w, and 10 million spores per gram of dry substrate were selected as optimum amounts.

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Enzymological and Immunological Properties of Pectin Lyases from Bacteriocinogenic Strains ofErwinia carotovora

Cited by 2 publications

References 8 publications

Presence of DNA damaging agents in plants as the possible inducers of pectin lyases of soft-rot Erwinia.

Presence of DNA damaging agents in plants as the possible inducers of pectin lyases of soft-rot Erwinia.

Polygalacturonase Production by Aspergillus Niger Solid State Fermentation on Barley Bran and Sugar Beet Pulp Mixture

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