Sabrina Araujo

• PhD
• PostDoc Position at Federal University of Viçosa

Diflubenzuron is a growth regulator insecticide and acaricide commonly used to control the immature stages of agricultural pests and mosquitoes that vector relevant animal diseases. Despite the beneficial effects of diflubenzuron, residues of these molecules can reach the aquatic ecosystems, which may lead to detrimental effects on aquatic non-targ...

For this article, we evaluated whether wounds would affect the pathogenicity and virulence of Colletotrichum sp. isolates on Musa spp. banana cultivars. We further assessed the potential of cross-colonization with other fruit species and investigated the molecular and phylogenetic characterization of the most virulent isolates. Firstly, we collecte...

The species Xylopia frutescens is a plant that inhabits the Cerrado Biome. The objective of the work was to evaluate the fungitoxic effect of the essential oil of this species in controlling diseases in maize and cowpea bean plants. The essential oil was obtained using the hydrodistillation and its chemical composition was determined through gas ch...

Cassava (Manihot esculenta Crantz) is a staple crop widely cultivated by small farmers in tropical countries. However, despite the low level of technology required for its management, it can be affected by several diseases, with anthracnose as the main threat. There is little information about the main species of Colletotrichum that infect cassava...

The γ-aminobutyric acid (GABA) receptors play pivotal roles in the transmission of neuronal information in the nervous system of insects, which has led these proteins to be targeted by synthetic and natural products. Here, we assessed the insecticidal potential of the essential oil of Pectis brevipedunculata (Gardner) Sch. Bip., a neotropical Aster...

Bacaba (Oenocarpus bacaba Mart.) is a native palm tree from Brazilian Amazon and Cerrado biomes. This tree produces a small, rounded fruit with dark skin and approximately 1.5 mm thick pulp, extensively utilized for palm heart extraction, juices, and jellies (De Cól et al. 2021). However, several diseases can adversely impact fruit yield and qualit...

The protection of soft-skinned fruits against Drosophila suzukii has relied primarily on the efficacy of a few synthetic molecules. Despite their short-term efficacy, these molecules can cause environmental pollution, unintendedly affect non-target organisms, and fail to provide sustainable control. The shortfalls of using synthetic pesticides warr...

Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is an invasive species that causes serious damage to soft-skinned fruits. The use of plant-based biorational insecticides (plant extracts and essential oils) to control this pest has grown extensively. We conducted a systematic review and meta-analysis to examine the current status, trends, an...

The Curvularia leaf spot, caused by the phytopathogen Curvularia lunata L., is one of the most relevant foliar diseases in Neotropical fields of corn, Zea mays L. The management of C. lunata infection still is heavily dependent on the use of synthetic compounds. However, due to increasing numbers of control failure reports and the unintended enviro...

Simple Summary Drosophila suzukii is an insect of global economic importance, including in the Neotropical region. Due to the difficulty in controlling this insect pest with conventional insecticidal molecules, it is necessary to search for novel alternatives. Here, we present the potential of synthetic lactone-based insecticides to control D. suzu...

Com vistas à produção de alimentos saudáveis e livres de pesticidas, tem-se buscado fungicidas botânicos em plantas medicinais entre outras presentes no Bioma Cerrado. Os compostos biologicamente ativos destas ainda são pouco conhecidos, principalmente no controle de doenças em plantas. Desta forma, trabalho teve o objetivo de avaliar o potencial f...

Pectis brevipedunculata are native species and widely available in dry and semi-arid ecosystems showing high biotechnological potential. The objective of this study was to evaluate the circadian and seasonal chemical variation of the essential oil (EO) of P. brevipedunculata, as well as its acaricide effect on Rhipicephalus microplus larvae. Aerial...

The identification of resistance of plants to pathogens is crucial for the development of hybrids by breeding programs. To achieve that, it is of great relevance to establish effective inoculation methods for characterizing genotypes with adequate plant resistance levels. Several inoculation methods have been investigated in the search for resistan...

Os fungos endofíticos podem manifestar metabólicos secundários e utilizados de maneira correta apresentam precursores de semi-síntese, assim potencializando a solubilização em fosfato e a germinação de sementes, ocorrendo assim o desenvolvimento de novos produtos para biotecnologia. Dessa forma, o objetivo do trabalho foi avaliar a diversidade dos...

The use of plant-based products has been shown to efficiently inhibit fungi-mediated diseases in agricultural crops. Here, we extracted and evaluated the composition of noni, Morinda citrifolia L., essential oil and assessed its activities against Stagonosporopsis cucurbitacearum in Cucumis melo L. Using in silico molecular approaches, potential in...

Pyriproxyfen is a juvenile hormone analogue that is commonly used to control the immature stages of mosquitoes in both artificial and natural water reservoirs. Recently, concerns have been raised regarding the community effectiveness of pyriproxyfen in preventing vector-transmitted diseases. Such concerns have been based on the unintended effects o...

Amongst the most important agricultural products in Brazil, the soybean stands out, mainly as an export good. One of the end-of-cycle diseases, Anthracnose, caused by the fungus Colletotrichum truncatum (Schwein.) leads to severe damage to grain quality and yield. The use of natural products as a substitute for conventional pesticides for plant dis...

Pyriproxyfen is a juvenile hormone analogue that is commonly used to control the immature stages of mosquitoes in both artificial and natural water reservoirs. Recently, concerns have been raised regarding the pyriproxyfen community effectiveness in preventing vector-transmitted diseases. Such concerns have been based on the unintended effects on n...

BACKGROUND Using plant‐based extracts and their constituents has been suggested as an alternative tool to replace or integrate with the synthetic compounds used to manage insect pests. Here, we evaluated the potential of extracts obtained from Ficus carica Linn (Moraceae) branches and leaves against the Neotropical brown stink bug, Euschistus heros...

The use of botanical fungicides has been presented as a promising tool to replace the use of synthetic compounds, as the former seems to offer reduced risks to the environment and human health. Here, we characterized the major constituents and evaluated the potential of essential oils of Noni, Morinda citrifolia L. plants for controlling stem-rot d...

Calcium (Ca2+) is a nutrient in tomato plants, of which deficiency usually causes several problems including a physiological disorder known as blossom-end rot (BER) in the fruit. The objective of this study was to evaluate and identify morphological and physiological characteristics related to the susceptibility of tomato varieties to BER. The vari...

Composições inseticidas que apresentam atividade contra insetos, mais especificamente contra percevejos da espécie Euschistus heros, conhecido como percevejo-marrom-da-soja, que representa relevante prejuízo para a cultura de soja.

The application of agrochemicals plays a key role in the world's food and agricultural products supply. Brazil, as one of the most relevant agricultural global players is highly dependent on the application of such products, which surely attracted not only companies that licitly commercialized the pesticides but also the so termed pesticide smuggle...

Blossom-end rot (BER) is a physiological disorder which affects tomato fruit. This book reviews many aspects of BER like plant nutrition, physiology and suggesting some controls.

Calcium (Ca²⁺) is an essential macronutrient in plants, and low concentrations of this nutrient may result in development of a physiological disorder known as blossom-end rot (BER) in tomato. Hormones can regulate the accumulation of Ca²⁺ and, consequently, fruit susceptibilities to BER. The objective of this study was to evaluate the effect of gib...

Water stress leads to large productivity losses in rice cultivation, and plant hormones play a key role in the plant strategies to prevent the harmful effects of water stress in crop development. The objective of this work was to investigate the effects of brassinosteroids (BRs) in rice development and yield under irrigation and under water deficit...

Blossom-end rot (BER) is a physiological disorder that can affect 100% of the fruit crop depending on the genotype. Tomato varieties with elongated fruit usually have a greater susceptibility to BER than other varieties. To evaluate and identify the possible physiological and morphological characteristics related to the onset of BER development, fo...

Aluminium (Al), a phytotoxic metal with high solubility in acidic soils, causes reductions in root system. There is increasing evidence for the role of plant hormones in toxicity mechanisms. To investigate the role of brassinosteroid hormone (BR) in the mechanism of Al toxicity, we used a tomato cultivar (Micro Tom 'MT-d') that has lower levels of...