种族被根除
发表于 2025-3-30 09:21:22
Introduction formation of chains of uninucleoidal spores from specialized aerial hyphae. The formation of aerial hyphae often coincides with antibiotic production and the occurrence of various pleiotropic mutants defective in both processes shows that the study of morphological differentiation may prove relevan
glucagon
发表于 2025-3-30 15:47:51
Gene Expression during Sporulation in , A3(2)nd functionally distinct regions (reviewed by Chater, 1989a). The tips of hyphae growing out into the agar convert surrounding nutrients into biomass, whereas hyphae in the central region of the colony often show extensive lysis (Wildermuth, 1970), perhaps connected with the supply of their contents
退潮
发表于 2025-3-30 19:25:11
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百科全书
发表于 2025-3-30 21:41:04
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Living-Will
发表于 2025-3-31 03:41:51
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AWE
发表于 2025-3-31 06:56:07
Measurement of Translational Accuracy in ,oth the types of cells the natural level of translational accuracy achieved is far from its attainable maximum since it can be increased by mutations affecting mostly ribosomal proteins. This indicates that a certain optimal level of translational fidelity was selected during evolution rather than i
突变
发表于 2025-3-31 12:10:32
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琐事
发表于 2025-3-31 16:23:33
Antibiotic Biosynthesisearly 1980’s (e.g. 1,2) was followed by the cloning of complete pathways (e.g. 3,4). Without exception, antibiotic production genes in streptomycetes are clustered on the chromosome. Often a resistance genes (or genes) is also located within the cluster (e.g. 5,6) which provides a facile strategy fo
不近人情
发表于 2025-3-31 19:17:35
Cephamycin Production by ,in (penicillin G) and phenoxymethylpenicillin (penicillin V), contain non-polar side chains, e.g. phenylacetate and phenoxyacetate, respectively, and are made only by filamentous fungi; the best known of these is .. The hydrophilic types are penicillin N, cephalosporins and 7-a-methoxycephalosporins
elucidate
发表于 2025-4-1 00:15:25
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