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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Curcumin/d-mannitol as photolarvicide: induced delay in larval development time, changes in sex ratio and reduced longevity of Aedes aegypti

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Author(s):
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Mezzacappo, Natasha [1] ; de Souza, Larissa [1] ; Inada, Natalia [1] ; Dias, Lucas [1] ; Garbuio, Matheus [1, 2] ; Venturini, Francine [1] ; Correa, Thaila [1] ; Moura, Lidia [3] ; Blanco, Kate [1] ; de Oliveira, Kleber [4] ; Bagnato, Vanderlei [1, 5]
Total Authors: 11
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Inst Phys, Sao Carlos - Brazil
[2] Univ Fed Sao Carlos, PPG Biotec, Sao Carlos - Brazil
[3] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Hydraul & Sanitat, Sao Carlos - Brazil
[4] Univ Fed Sao Carlos, Dept Chem, Sao Carlos - Brazil
[5] Texas A&M Univ, Dept Biomed Engn, College Stn, TX - USA
Total Affiliations: 5
Document type: Journal article
Source: Pest Management Science; v. 77, n. 5 FEB 2021.
Web of Science Citations: 0
Abstract

BACKGROUND Resistant populations of Ae. aegypti have been a major problem in arboviruses epidemic areas, generating a strong demand for novel methods of vector control. In this regard, our group has demonstrated the use of curcumin as an efficient photoactive larvicide to eliminate Ae. aegypti larvae. This work was aimed to evaluate the Ae. aegypti (Rockefeller) development under sublethal conditions, using a curcumin/d-mannitol (DMC) formulation. The photolarvicidal efficacy under semi-field and field conditions (wild populations) was also analyzed, as well as the photobleaching and residual activity of DMC. RESULTS A delay in development time when larvae were exposed to sublethal concentrations of DMC was observed, followed by significant changes in sex ratio and reduction in longevity. DMC also presented a low residual activity when compared to usual larvicides, and had a substantial photolarvicidal activity against wild populations in field trials, achieving 71.3% mortality after 48 h. CONCLUSIONS Overall, these findings are of great biological importance for the process of enabling the implementation of DMC as a new product in the control of Ae. aegypti larvae, and contributes to the improvement of new plant-based larvicides. (AU)

FAPESP's process: 19/27176-8 - Asymmetric photocatalysis applied to the synthesis of Brivaracetam: synthetic approaches employing enabling technologies for chemical synthesis
Grantee:Kleber Thiago de Oliveira
Support Opportunities: Regular Research Grants
FAPESP's process: 13/07276-1 - CEPOF - Optics and Photonic Research Center
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 14/50857-8 - National Institute in Basic Optics and Applied to Life Sciences
Grantee:Vanderlei Salvador Bagnato
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 19/13569-8 - Study of the Mechanisms of Action in Photodynamic Therapy: From Photosensitizer to Practical Application
Grantee:Lucas Danilo Dias
Support Opportunities: Scholarships in Brazil - Post-Doctoral