Mycobacteriophage SWU1 is a newly isolated phage from soil sample collected in Sichuan province, China using Mycobacterium smegmatis mc(2)155 as host. Plaque, phage morphology and one-step growth curve were characterized. The complete genomic sequence of phage SWU1 was determined by shotgun sequencing. The ends of SWU1 were determined. Structural proteins of SWU1 were analyzed by NanoLC-ESI-MS/MS. Seven ORFs were identified as structural protein encoded by SWU1 genome. The genetic basis underlying the SWU1 plaque was explored using comparative genomics. Prophages homologous to SWU1 were identified in two pathogens, Segniliparus rugosus ATCC BAA-974 and Mycobacterium rhodesiae JS60. Genus Segniliparus is a member of the order Corynebacteriales. To our knowledge, this is the first report of Mycobacterium prophages in different genera.
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http://dx.doi.org/10.1016/j.gene.2015.02.053 | DOI Listing |
Int J Mol Sci
December 2024
Guangxi Key Laboratory of Sericultural Genetic Improvement and Efficient Breeding, Sericulture Technology Promotion Station of Guangxi, Nanning 530007, China.
Baculoviruses, the largest studied insect viruses, are highly pathogenic to host insects. nucleopolyhedrovirus (BmNPV) is the main cause of nuclear polyhedrosis of silkworm, a viral disease that causes significant economic losses to the sericulture industry. The anti-BmNPV mechanism of the silkworm has not yet been characterized.
View Article and Find Full Text PDFPest Manag Sci
September 2024
State Key Laboratory of Resource Insects, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Beibei, China.
Background: Bombyx mori nuclear polyhedrosis virus (BmNPV), as a typical baculovirus, is the primary pathogen that infects the silkworm B. mori, a lepidopteran species. Owing to the high biological safety of BmNPV in infecting insects, it is commonly utilized as a biological insecticide for pest control.
View Article and Find Full Text PDFHeliyon
March 2024
Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China.
( is the pathogen of human tuberculosis (TB). Resistance to numerous stresses, including oxidative stress, is determinant for intracellular survival, and understanding associated mechanisms is crucial for developing new therapeutic strategies. Rv2617c has been associated with oxidative stress response when interacting with other proteins in ; however, its functional promiscuity and underlying molecular mechanisms remain elusive.
View Article and Find Full Text PDFAnal Chem
January 2024
Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
Although porphyrins make up a promising class of electrochemiluminescence (ECL) luminophors, their aggregation-caused quenching (ACQ) characteristics lead to inferior ECL efficiency (Φ). Furthermore, current application of porphyrins is limited to cathodic emission. This work creatively exploited a cage-like porous complex (referred to as SWU-1) as the microreactor to recede the ACQ effect while modulating dual ECL emission of meso-tetra(4-carboxyphenyl)porphine (TCPP), which self-assembled with SWU-1 to form TCPP@SWU-1 nanocapsules (TCPP@SWU-1 NCs).
View Article and Find Full Text PDFPestic Biochem Physiol
May 2023
State Key Laboratory of Silkworm Genome Biology, Key Laboratory for Sericulture Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China. Electronic address:
Juvenile hormone (JH) plays a crucial endocrine regulatory role in insect metamorphosis, reproduction, and longevity in multiple organisms, such as flies, honeybees, and migratory monarch butterflies. However, the molecular mechanism of JH affecting longevity remains largely unknown. In this study, we showed that JH III and its analog methoprene shortened the survival days significantly in the adulthood of male silkworm.
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