Immunodiagnosis of silkworm diseases

Sivaprasad, V.; Rahul, K.; Moteriya, Pooja

doi:10.1016/bs.mim.2021.04.002

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…Representative sepsis-causing strains include S. marcescens, Bacillus proteus, Pseudomonas sp., Streptococcus sp., and Bacillus sp. The first symptom noted after infection is that the back of the head of the silkworm turns black, and over time, the color of the epidermis changes after death [18]. S. marcescens causes black-brown spots to appear all over the body immediately after death, while the body turns red over time, as was also noted in this study [19].…”

Section: Characteristics Of Silkworms Showing Sepsis Symptomssupporting

confidence: 76%

“…For the diagnosis and prevention of insect diseases, observation of morphological characteristics is used as the simplest and fastest method for evaluation; therefore, accurate assessment and classification of characteristics are important. Sepsis in silkworms causes death when pathogenic bacteria invade and proliferate in the silkworm's body [18]. Representative sepsis-causing strains include S. marcescens, Bacillus proteus, Pseudomonas sp., Streptococcus sp., and Bacillus sp.…”

Section: Characteristics Of Silkworms Showing Sepsis Symptomsmentioning

confidence: 99%

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Microbial Community Changes in Silkworms Suspected of Septicemia and Identification of Serratia sp.

Park,

Jeong

et al. 2024

IJMS

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Diseases that occur in silkworms include soft rot, hardening disease, digestive diseases, and sepsis. However, research on the causes of bacterial diseases occurring in silkworms and the resulting changes in the microbial community is lacking. Therefore, we examined the morphological characteristics of sepsis and changes in the microbial community between silkworms that exhibit a unique odor and healthy silkworms; thus, we established a relationship between disease-causing microorganisms and sepsis. After producing a 16S rRNA amplicon library for samples showing sepsis, we obtained information on the microbial community present in silkworms using next-generation sequencing. Compared to that in healthy silkworms, in silkworms with sepsis, the abundance of the Firmicutes phylum was significantly reduced, while that of Proteobacteria was increased. Serratia sp. was dominant in silkworms with sepsis. After bacterial isolation, identification, and reinfection through the oral cavity, we confirmed this organism as the disease-causing agent; its mortality rate was 1.8 times higher than that caused by Serratia marcescens. In summary, we identified a new causative bacterium of silkworm sepsis through microbial community analysis and confirmed that the microbial community balance was disrupted by the aberrant proliferation of certain bacteria.

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Section: Characteristics Of Silkworms Showing Sepsis Symptomssupporting

confidence: 76%

Section: Characteristics Of Silkworms Showing Sepsis Symptomsmentioning

confidence: 99%

Microbial Community Changes in Silkworms Suspected of Septicemia and Identification of Serratia sp.

Park,

Jeong

et al. 2024

IJMS

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“…The silkworm ( B. mori ) eggs of Bulgaria Race (Hybrid) were obtained from the Sericulture Wing; Forestry, Wildlife and Fisheries Department, Lahore. Silkworm eggs were incubated under standard light (12 h light: 12 h dark), optimum temperature (25–28 °C) and humidity (70–75 %) for 8 days in the Research Laboratory of Sericulture Wing; Forestry, Wildlife and Fisheries Department, Lahore (31° 36′ 28″ N, 74° 18′ 11″ E) [ [ [28] , [29] , [30] , [31] , [32] ]]. The eggs were hatched after 8 days [ 33 ].…”

Section: Methodsmentioning

confidence: 99%

Effect of amino acid fortified mulberry leaves on economic and biological traits of Bombyx mori L.

Muzamil,

Tahir,

Ali

et al. 2023

Heliyon

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“…Viral diseases are prevalent and are one of the major constraints in almost all the sericultural areas in India. The diseases caused by viruses such as BmNPV (grasserie) and BmDV and BmIFV (flacherie) are more common and account to nearly 70% of reported crop losses (Sivaprasad et al, 2021). India being tropical country and the conditions favour the growth of viruses, it is highly expected that the silkworm can be infected by multi-virus.…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of multi-viral diseases tolerant bivoltine silkworm hybrid of Bombyx mori l. (Lepidoptera: Bombycidae)

et al. 2024

Int.J.Zool.Appl.Biosci

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Bombyx mori Densonucleosis virus (BmDV), Bombyx mori Infectious flacherie virus (BmIFV) and Bombyx mori nuclear polyhedrosis virus (BmNPV) infection to silkworms causes major sericulture crop loss. The multi-viral diseases tolerant bivoltine silkworm double hybrid, RDIN1, developed through marker-assisted selection was field evaluated by rearing 20,000 dfls at different location and season. RDIN1, had better pupation (94.8%) compared to control, FC1 X FC2 (91.5%) at farmers’ level with 4 % significant improvement. Average Cocoon yield of RDIN1 (71.2%) was better compared to FC1 X FC2 (69.3%) in unfavourable conditions. Other parameters such as cocoon weight, shell weight, shell percentage, reelability, filament length, raw silk, denier, neatness had also significant difference between RDIN1 and FC1 x FC2. The RDIN1 is expected to reduce cocoon crop losses invariably due to viral infection and fetch more profit to sericulture farmers.

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Immunodiagnosis of silkworm diseases

Cited by 8 publications

References 13 publications

Microbial Community Changes in Silkworms Suspected of Septicemia and Identification of Serratia sp.

Microbial Community Changes in Silkworms Suspected of Septicemia and Identification of Serratia sp.

Effect of amino acid fortified mulberry leaves on economic and biological traits of Bombyx mori L.

Field evaluation of multi-viral diseases tolerant bivoltine silkworm hybrid of Bombyx mori l. (Lepidoptera: Bombycidae)

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