Tunicamycin‐resistant mutants of <i>Bacillus amyloliquefaciens</i> are deficient in amylase, protease and penicillinase synthesis and have altered sensitivity to antibiotics and autolysis

Dias, F. F.; Shaikh, Mohsin; Bhatt, Yogita; Modi, Dikshit C.; Subramanyam, V. R.

doi:10.1111/j.1365-2672.1986.tb01733.x

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…For the production of amylase and protease a peanut meal medium (Dias et al 1986) was used, modified as required to contain X-S instead of hydrolysed starch. With X-S, hydrolysis with a-amylase is unnecessary.…”

Section: Effect Of X-s O N Protease a N D Amylase P R O D U C T I O Nmentioning

confidence: 99%

A note on the use of cross‐linked starch in microbiology with special reference to detecting amylase production

Modi¹,

Bhatt²,

Shaikh³

et al. 1986

Journal of Applied Bacteriology

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Anilogel-E, a cross-linked starch, can be used with distinct advantages where native starch or soluble starch are conventionally used, e.g. in scoring for amylolytic organisms, as an ingredient of fermentation media, and in enhancing protoplast regeneration. It is particularly useful for the direct visualization of amylase producing micro-organisms on solid media, making prior replication of colonies unnecessary.

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Section: Effect Of X-s O N Protease a N D Amylase P R O D U C T I O Nmentioning

confidence: 99%

A note on the use of cross‐linked starch in microbiology with special reference to detecting amylase production

Modi¹,

Bhatt²,

Shaikh³

et al. 1986

Journal of Applied Bacteriology

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“…It has now become evident that pleiotropy is 'virtually un iv ersal' (W right 1968). Pleiotropic gene action has been found in all organisms from viruses (W elham & W yke 1988) to bacteria (Dias et al 1986;K lug & Cohen 1988;V an Dyk et al 1987;Y ang et al 1986), and from plants (Estelle & Somerville 1987;E pperson & Clegg 1988;G ottlieb et al 1988) to anim als (A llendorf 1983;H odson et al 1983;Jinks et al 1985). In Drosophila melanogaster M organ et al (1915) m entioned that a m utation of a single gene can have m ultiple effects on the phenotype.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect ofAdhalleles inDrosophila melanogaster

1992

Proc. R. Soc. Lond. B

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In laboratory cultures of Drosophila melanogaster derived from an African population, the quantities of six out of seven enzymes (G6PD, IDH, GPDH, ME, MDH, PGM and ADH) were higher in Adh-FF homozygotes than they were in Adh-SS. In crosses between Adh-FF and Adh-SS flies, the differences segregated as co-dominant alleles of a single Mendelian gene closely linked, or identical, to the Adh locus. The generality of these associations was suggested by the study of a French population with a very different history and genetic background. The possibility that the associations were caused by artefacts of the immunodiffusion techniques, or to a linked inversion (In(2L)t), was excluded. Possible ways by which the Adh locus may affect the quantities of other enzymes are discussed.

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The glycoprotein toxin of Bacillus thuringiensis subsp. israelensis indicates a lectinlike receptor in the larval mosquito gut

Muthukumar

Nickerson

1987

Appl Environ Microbiol

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The mosquito-active protein crystals produced by Bacillus thuringiensis subsp. israelensis contain covalently attached aminosugars which are critical for their larvicidal activity. The 50% lethal concentrations toward Aedes aegypti larvae were increased up to 10-fold by mild periodate treatment, up to 40-fold by forming the protein crystals in the presence of tunicamycin, and up to 7-fold by the presence during the mosquito bioassays of N-acetylglucosamine or its trimer, triacetylchitotriose. Periodate-treated crystals and crystals formed in the presence of tunicamycin had greatly reduced binding capacities for wheat germ agglutinin, an Nacetylglucosamine-specific lectin. These results suggest that the B. thuringiensis subsp. israelensis glycoprotein toxin binds to a lectinlike receptor in the larval mosquito gut. Furthermore, the distinct lectin-binding patterns exhibited by diptera-active versus lepidoptera-active B. thuringiensis crystals suggest that host specificity for the microbial insecticides is determined, in part, by the carbohydrate portion of their glycoprotein crystals.

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Tunicamycin‐resistant mutants of Bacillus amyloliquefaciens are deficient in amylase, protease and penicillinase synthesis and have altered sensitivity to antibiotics and autolysis

Cited by 3 publications

References 22 publications

A note on the use of cross‐linked starch in microbiology with special reference to detecting amylase production

A note on the use of cross‐linked starch in microbiology with special reference to detecting amylase production

Synergistic effect ofAdhalleles inDrosophila melanogaster

The glycoprotein toxin of Bacillus thuringiensis subsp. israelensis indicates a lectinlike receptor in the larval mosquito gut

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