Improved insecticidal activity of a recombinant baculovirus expressing spider venom cyto-insectotoxin

Verfasser / Beitragende:
[M. Ali, Tatsuya Kato, Enoch Park]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/23(2015-12-01), 10261-10269
Format:
Artikel (online)
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024 7 0 |a 10.1007/s00253-015-6846-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6846-0 
245 0 0 |a Improved insecticidal activity of a recombinant baculovirus expressing spider venom cyto-insectotoxin  |h [Elektronische Daten]  |c [M. Ali, Tatsuya Kato, Enoch Park] 
520 3 |a Baculoviruses have a long history of safe use as specific, environmentally friendly insecticides that provide alternatives to chemical pesticides for controlling insect pests. However, their use has been limited by several factors, particularly their slow pathogenicity. In this study, we constructed a recombinant Bombyx mori nucleopolyhedrovirus (BmNPV) and an Autographa californica multiple nucleopolyhedrovirus (AcMNPV) that expressed an insect-specific cyto-insectotoxin (Cit1a) from the venom of the central Asian spider Lachesana tarabaevi. Cit1a is a comparatively long linear cytolytic molecule that contains a predicted α-helix structure composed of two short membrane-acting antimicrobial peptides (MAMPs) that are joined together in a "head-to-tail” shape. Cit1a fused to polyhedrin gene (polh) (polh-cit1a) was expressed in the nuclei as polyhedra in silkworm larvae, Bm5 and Sf9 cells. An early death of Bm5 and Sf9 cells by recombinant BmNPV/Polh-Cit1a and AcMNPV/Polh-Cit1a was observed compared with control viruses that lacked the toxin gene. The infected cells showed a loss of cytoplasm, membrane integrity, and structural changes, suggesting that recombinant baculovirus-infected cells were killed by the necrosis caused by Cit1a. In addition, the BmNPV/Polh-Cit1a showed a significant reduction in the median lethal time (LT50) against silkworm larvae compared with those of control BmNPV that lacked the cit1a gene. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Cyto-insectotoxin  |2 nationallicence 
690 7 |a Recombinant baculovirus  |2 nationallicence 
690 7 |a Pathogenicity  |2 nationallicence 
690 7 |a Cytotoxicity  |2 nationallicence 
690 7 |a Bombyx mori  |2 nationallicence 
700 1 |a Ali  |D M.  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
700 1 |a Kato  |D Tatsuya  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
700 1 |a Park  |D Enoch  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/23(2015-12-01), 10261-10269  |x 0175-7598  |q 99:23<10261  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6846-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6846-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ali  |D M.  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kato  |D Tatsuya  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Park  |D Enoch  |u Laboratory of Biotechnology, Integrated Bioscience Section, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Suruga-ku, Japan  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/23(2015-12-01), 10261-10269  |x 0175-7598  |q 99:23<10261  |1 2015  |2 99  |o 253