The effects of Enterolobium contortisiliquum serine protease inhibitor on the survival of the termite Nasutitermes corniger,and its use as affinity adsorbent to purify termite proteases     

Rodrigo da Silva Ferreira  Thiago Henrique Napoleo  Rosemeire A Silva‐Lucca  Mariana Cristina Cabral Silva  Patrícia Maria Guedes Paiva  Maria Luiza Vilela Oliva 《Pest management science》2019,75(3):632-638

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Association of zein nanoparticles with botanical compounds for effective pest control systems     

Jhones L de Oliveira  Estefnia V R Campos  Taís Germano‐Costa  Renata Lima  Jaqueline Franciosi Della Vechia  Sidneia Terezinha Soares  Daniel Junior de Andrade  Kelly Cristina Gonalves  Joacir do Nascimento  Ricardo Antonio Polanczyk  Leonardo Fernandes Fraceto 《Pest management science》2019,75(7):1855-1865

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Tolerance to nymphs and adults of Mahanarva spectabilis (Hemiptera: Cercopidae) by forage plants in fertilized soils     

Roberta Alvarenga  Alexander Machado Auad  Jair Campos Moraes  Sandra Elisa Barbosa da Silva  Brunno Santos Rodrigues 《Pest management science》2019,75(8):2242-2250

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Spatial distribution of beetle attack and its association with mango sudden decline: an investigation using geostatistical tools     

Rogrio M Pereira  Tarcísio V da Silva Galdino  Nilson Rodrigues‐Silva  Ricardo S da Silva  Thadeu C de Souza  Marcelo C Picano 《Pest management science》2019,75(5):1346-1353

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紫花苜蓿耗水规律及灌溉制度优化研究   总被引：1，自引：0，他引：1  

郭彦芬  霍轶珍  王文达 《节水灌溉》2017,(3)

为研究河套灌区紫花苜蓿的耗水规律,同时对现有灌溉制度进行优化,在田间试验的基础上,设置不同灌水水平对前两茬苜蓿进行了研究。结果表明:现蕾期和开花期是紫花苜蓿耗水的旺盛阶段,该阶段土壤水分亏缺会直接影响苜蓿产量的形成。通过多元线性回归的方法求解得到了两茬紫花苜蓿各生育期的敏感性系数,分别在0.103~0.731和0.041~0.375之间,且以现蕾期和开花期为最大,说明这两个生育阶段为苜蓿生长的关键阶段。以Jensen模型为基础,采用最小二乘法初步优化了两茬紫花苜蓿生育期内的灌溉制度,第1茬灌溉定额以1 400 m3/hm~2为宜,第2茬以2 300 m3/hm~2为宜,两茬灌水次数分别以4次和5次为最优。  相似文献   

Prediction of parental combination for introduction of stay-green associated loci in wheat     

Henrique de Souza Luche  José Antonio Gonzalez da Silva  Rafael Nornberg  Emilio Ghisleni Arenhardt  Vanderlei da Rosa Caetano  Luciano Carlos da Maia  Antonio Costa de Oliveira 《Journal of Crop Science and Biotechnology》2017,20(2):73-80

In wheat, the increase of yield and stability associated traits can be achieved by combining parents containing the stay-green trait and favorable alleles for grain yield. The aim of this work was to analyze the genetic dissimilarity between wheat lines from stay-green and synchronized maturation groups and elite cultivars. Moreover, to propose promising combinations seeking the selection of high-grain yield and high bread-making quality genotypes containing stay-green trait. The experiment was conducted in a randomized block design with three replications in 2003, 2004, and 2005, using sister-lines with the presence and absence of stay-green trait and elite cultivars. Genetic variability exists among wheat strains from the synchronized stay-green maturation group and elite cultivars. Genotypes of maturation group stay-green obtained an average performance superior to the synchronized group. Crosses between stay-green lines and the CEP 29 and BRS 177 cultivars are promising in the selection of genotypes carrying the stay-green trait with high yield and bread-making quality.  相似文献   

Chitosan-Based Films with 2-Aminothiophene Derivative: Formulation,Characterization and Potential Antifungal Activity     

Vernica da Silva Oliveira  Meringela Miranda da Cruz  Gabriela Suassuna Bezerra  Natan Emanuell Sobral e Silva  Fernando Henrique Andrade Nogueira  Guilherme Maranho Chaves  Jos Lamartine Soares Sobrinho  Francisco Jaime Bezerra Mendona-Junior  Bolívar Ponciano Goulart de Lima Damasceno  Attilio Converti  dley Antonini Neves de Lima 《Marine drugs》2022,20(2)

In this study, films of chitosan and 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (6CN), a 2-aminothiophene derivative with great pharmacological potential, were prepared as a system for a topical formulation. 6CN-chitosan films were characterized by physicochemical analyses, such as Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electronic microscopy (SEM). Additionally, the antifungal potential of the films was evaluated in vitro against three species of Candida (C. albicans, C. tropicalis, and C. parapsilosis). The results of the FTIR and thermal analysis showed the incorporation of 6CN in the polymer matrix. In the diffractogram, the 6CN-chitosan films exhibited diffraction halos that were characteristic of amorphous structures, while the micrographs showed that 6CN particles were dispersed in the chitosan matrix, exhibiting pores and cracks on the film surface. In addition, the results of antifungal investigation demonstrated that 6CN-chitosan films were effective against Candida species showing potential for application as a new antifungal drug.  相似文献   

LED-Induced Chlorophyll Fluorescence Spectral Analysis for the Early Detection and Monitoring of Cadmium Toxicity in Maize Plants     

Airon José da Silva  Clístenes Williams Araújo do Nascimento  Artur da Silva Gouveia-Neto  Elias Arcanjo da Silva-Jr 《Water, air, and soil pollution》2012,223(6):3527-3533

Chlorophyll fluorescence spectral analysis permits detection, monitoring, and evaluation of abiotic stresses upon healthy plants using illumination of a light source in the UV?CVIS spectral range. This technique indirectly assesses the amount of physiological stress caused by photosynthetic damage, specifically damage to photosystem II, in plants. The objective of this study was to detect the toxicity of cadmium in maize plants via spectral analysis of chlorophyll fluorescence. The analysis is noninvasive and nondestructive and is used to follow the temporal evolution of changes in the chlorophyll content and physiological state of Zea mays L. seedlings under cadmium stress. Conventional techniques were also used to evaluate the dry matter production and Cd accumulation in plant leaves. Plants exhibited a notable reduction in dry matter production and chlorophyll levels with the administration of increasing doses of Cd in the nutrient solution. The fluorescence analysis was sensitive to changes caused by Cd in maize plants, detecting damage caused by different treatments before visual symptoms were observed. This technique has a practical application and produces rapid results that can be used in the evaluation of Cd-induced stress in plants and the detection of areas contaminated by this element.  相似文献   

First molecular detection of canine herpesvirus 1 (CaHV-1) in the Eastern Brazilian Amazon     

Marcela dos Santos Castro  Maridelzira Betania Moraes David  Evonnildo Costa Gonalves  Andrei Santos Siqueira  Rodrigo Rodrigues Virgulino  Delia Cristina Figueira Aguiar 《Journal of veterinary science (Suw?n-si, Korea)》2022,23(2)

BackgroundCanine herpesvirus type 1 (CaHV-1) infects dogs and is associated with neonatal deaths and reproductive, ocular, neurological, and respiratory problems. In Brazil, reports of CaHV-1 have been restricted to the southeast and south regions, particularly in municipalities in the state of Rio Grande do Sul.ObjectivesTo assess the presence and variability of CaHV-1 in canine populations in the state of Pará, North Brazil.MethodsBiological samples from 159 dogs from 4 municipalities in the State of Pará were evaluated using polymerase chain reaction and phylogenetic analyses, with the target being the viral enzyme, thymidine kinase.ResultsCaHV-1 was detected in 13 dogs (8.2%), with 2 animals being from the municipality of Santa Bárbara do Pará, 8 from Algodoal Island, 2 from Salinópolis, and one from Capanema. The study sequences revealed 100% identity among themselves and 64% to 100% identity with the other nucleotide sequences from Australia, Brazil, United Kingdom, and United States, including 100% identity with the 2002 isolate from Australia. The 1996 isolate from France was grouped in a branch that was different from the sequence of this study.ConclusionsThis study presents the first molecular detection of CaHV-1 in dogs from the Amazon region in northern Brazil. The nucleotide identity between the strains and cytosine insertion in the sequences isolated in this study suggests at least 2 strains of CaHV-1 circulating in Brazil (Pará and BTU-1).  相似文献   

Total Phenolic Levels,In Vitro Antioxidant Properties,and Fatty Acid Profile of Two Microalgae,Tetraselmis marina Strain IMA043 and Naviculoid Diatom Strain IMA053, Isolated from the North Adriatic Sea     

Riccardo Trentin  Luísa Custdio  Maria Joo Rodrigues  Emanuela Moschin  Katia Sciuto  Jos Paulo da Silva  Isabella Moro 《Marine drugs》2022,20(3)

This work studied the potential biotechnological applications of a naviculoid diatom (IMA053) and a green microalga (Tetraselmis marina IMA043) isolated from the North Adriatic Sea. Water, methanol, and dichloromethane (DCM) extracts were prepared from microalgae biomass and evaluated for total phenolic content (TPC) and in vitro antioxidant properties. Biomass was profiled for fatty acid methyl esters (FAME) composition. The DCM extracts had the highest levels of total phenolics, with values of 40.58 and 86.14 mg GAE/g dry weight (DW in IMA053 and IMA043, respectively). The DCM extracts had a higher radical scavenging activity (RSA) than the water and methanol ones, especially those from IMA043, with RSAs of 99.65% toward 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt (ABTS) at 10 mg/mL, and of 103.43% against 2,2-diphenyl-1-picrylhydrazyl (DPPH) at 5 mg/mL. The DCM extract of IMA053 displayed relevant copper chelating properties (67.48% at 10 mg/mL), while the highest iron chelating activity was observed in the water extract of the same species (92.05% at 10 mg/mL). Both strains presented a high proportion of saturated (SFA) and monounsaturated (MUFA) fatty acids. The results suggested that these microalgae could be further explored as sources of natural antioxidants for the pharmaceutical and food industry and as feedstock for biofuel production.  相似文献