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Emmanuel Viana Pontual

Publications (8)

Saprophytic, Symbiotic and Parasitic Bacteria: Importance to Environment, Biotechnological Applications and Biocontrol

Francis Soares Gomes, Emmanuel Viana Pontual, Luana Cassandra Breitenbach Barroso Coelho & Patrícia Maria Guedes Paiva · Advances in Research · 2014

Microbial communities have a vast importance to the ecosystem being of use by humans for health or industrial purposes. Most bacteria can be distinguished into three groups: saprophytic; symbiotic and parasitic. Saprophytic bacteria, which are the major decomposers of organic mat...

Open access Research Article 10.9734/AIR/2014/9161

Coronavirus Spike (S) Protein: A Brief Review on Structure-Function Relationship, Host Receptors, and Role in Cell Infection

Lidiane Pereira de Albuquerque, Leydianne Leite de Siqueira Patriota, Vitor Gonzatto, Emmanuel Viana Pontual, Patrícia Maria Guedes Paiva & Thiago Henrique Napoleão · Advances in Research · 2020

Coronaviruses (CoVs) are a broad group of spherical and enveloped viruses that cause diseases in humans and animals. CoVs have become a major threat to public health in the past two decades, exemplified by epidemics of acute respiratory syndromes and, most recently, the coronavir...

Open access Research Article 10.9734/air/2020/v21i930240

Biological Impacts of Climate Change on Sea Turtles: A Review

Alyce de Oliveira da Silva, Arlene Santos Teixeira, Íris Maria da Silva, Thaís Costa Tavares de Sampaio, Vanessa Gomes da Silva & Emmanuel Viana Pontual · Advances in Research · 2025

Climate change poses significant threats to sea turtle populations, affecting reproduction, migration, and survival. This review explores the impacts of rising global temperatures, greenhouse gas emissions, and oceanic disruptions on these species. Elevated sand temperatures resu...

Open access Research Article 10.9734/air/2025/v26i31327

Natural Products: Are They Efficient Alternatives against the Stored Grain Pest Sitophilus zeamais?

Alice Ribeiro Cavalcante, Eva Luana Almeida da Silva, Panait Abu Nidal Alves dos Santos, Hanna Gracie Inez de Freitas Lima, Welton Aaron de Almeida, Emmanuel Viana Pontual & Ardilles Juan Carlos Alves dos Santos · Advances in Research · 2021

Cereal crops strongly contribute with the world economy and because of this the reduction of their productivity may lead to irreparable economic consequences worldwide. The maize weevil Sitophilus zeamais is the main pest of maize in the field or during processing, storage and co...

Open access Research Article 10.9734/air/2021/v22i530311

Can Plant Lectins be Alternatives to Treat Anxiety and Depressive Disorders?

Bárbara Raíssa Ferreira de Lima, Leydianne Leite de Siqueira Patriota, Lidiane Pereira de Albuquerque, Dalila de Brito Marques Ramos, Patrícia Maria Guedes Paiva, Emmanuel Viana Pontual, Michelle Melgarejo da Rosa & Thiago Henrique Napoleão · Advances in Research · 2020

Depression and anxiety disorder are the most common mental disorders worldwide and their treatments are combinations of pharmacological and psychotherapeutic approaches. Depression treatment depends largely on a pharmacotherapy that improves the transmission of monoamines in the...

Open access Research Article 10.9734/air/2020/v21i1130274

Plant-Based Insecticides for Control of Aedes aegypti, Sitophilus zeamais and Nasutitermes corniger: A Review and Bibliometric Analysis

Lucas Gabriel Pita dos Santos, Beatriz de Aquino Marques da Costa, Welton Aaron de Almeida, Talyta Naldeska da Silva, Gabriel da Silva Coutinho, Thiago Henrique Napoleão, Tatiana Souza Porto & Emmanuel Viana Pontual · Advances in Research · 2024

Insect pests can transmit diseases or affect the economy and their uncontrolled growth is intensified by human activity, which has affected ecosystems and interfered with trophic chains. Aedes aegypti L. transmits dengue, chikungunya, zika and yellow fever, while Sitophilus zeama...

Open access Research Article 10.9734/air/2024/v25i31062

PgTI, the First Bioactive Protein Isolated from the Cactus Pilosocereus gounellei, is a Trypsin Inhibitor with Antimicrobial Activity

Cláudio Alberto Alves da Rocha Filho, Poliana Karla Amorim, Thâmarah de Albuquerque Lima, Pollyanna Michelle da Silva, Maiara Celine de Moura, Luana Cassandra Breitenbach Barroso Coelho, Russolina Benedeta Zingali, Emmanuel Viana Pontual, Thiago Henrique Napoleão & Patrícia Maria Guedes Paiva · Advances in Research · 2019

Aims: This work aimed to isolate, characterize and evaluate the antimicrobial activity of a trypsin inhibitor (PgTI) from the stem of Pilosocereus gounellei. Place and Duration of Study: Departamento de Bioquímica, Universidade Federal de Pernambuco between March 2013 and October...

Open access Research Article 10.9734/air/2019/v20i330160

Evaluation of Antioxidant, Antibacterial, and Anti-hemolytic Properties of Ethanol Extract from Plectranthus barbatus Andrews (Lamiaceae) Leaves

Janeffer Lemberg Messias Barboza Cavalcanti, Lucas Gabriel Pita dos Santos, João Victor de Oliveira Alves, Welton Aaron de Almeida, Gabriel da Silva Coutinho, Alex Michel Silva Araújo, Gustavo Ramos Salles Ferreira, Ana Beatriz Sotero Siqueira, Magda Rhayanny Assunção Ferreira, Luiz Alberto Lira Soares, Rômulo Carlos Dantas da Cruz, Ivone Antônia de Souza, Maria Tereza dos Santos Correia, Marcia Vanusa da Silva, Thiago Henrique Napoleão & Emmanuel Viana Pontual · Advances in Research · 2024

Polyphenols can act as antioxidants, antibacterial, antifungal, or insecticidal agents. Given that microbial infections and arboviruses transmitted by Aedes aegypti significantly contribute to global morbidity and mortality, there is an urgent need to discover new antimicrobials...

Open access Research Article 10.9734/air/2024/v25i51143