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131.
Castral TC Matos AP Monteiro JL Araujo FM Bondancia TM Batista-Pereira LG Fernandes JB Vieira PC da Silva MF Corrêa AG 《Journal of agricultural and food chemistry》2011,59(9):4822-4827
The fall armyworm Spodoptera frugiperda is a polyphagous pest that causes important damage in different regions of America and mainly affects corn crops in both tropical and subtropical areas. Currently, control relies on both transgenic plants and/or chemical pesticides. In this work we describe the preparation of an indexed combinatorial library of amides and its toxic effect by contact against S. frugiperda . (E)-1-(1-Piperidinyl)-3-[4-(trifluoromethoxy)phenyl]-2-propen-1-one was the most active compound with an LD(50) = 0.793 μg mg(-1) of larva. This amide was also evaluated by ingestion and at the lowest concentration (1 mg kg(-1)) achieved 83.3% mortality. 相似文献
132.
Mar��a Soledad Fuentes Juliana Mar��a S��ez Claudia Susana Benimeli Mar��a Julia Amoroso 《Water, air, and soil pollution》2011,222(1-4):217-231
The current study aimed to compare lindane degradation by pure and mixed cultures of Streptomyces sp. Cell-free extracts were assayed for potentiating dechlorinase activity and, based on these results, consortia of two to six microorganisms were assayed for their growth on and degradation of lindane. Furthermore, the role of bacterial consortia of lindane-degrading strains was examined in lindane decontamination soil assays. Four actinobacteria, previously isolated from a pesticide-contaminated area, were selected because of their tolerance to lindane and their ability to use the pesticide as sole carbon source. These strains as well as Streptomyces sp. M7 and Streptomyces coelicolor A3 were used to study specific dechlorinase activity (SDA) and lindane removal in mixed cultures. Pure cultures presented SDA in the presence of 1.66 mg L-1 lindane as carbon source. SDA was improved by certain mixed cultures until 12 times compared with pure cultures. Mixed cultures with two, three, and four strains showed maximum lindane removal of 46% to 68%, whereas combinations of five and six strains did not efficiently remove the pesticide from the culture medium. The Streptomyces sp. A2, A5, M7, and A11 consortium presented the lowest ratio between residual lindane concentration and SDA and could be a promising tool for lindane biodegradation. 相似文献
133.
Rachel Pilla Frederic P. Gaschen James W. Barr Erin Olson Julia Honneffer Blake C. Guard Amanda B. Blake Dean Villanueva Mohammad R. Khattab Mustafa K. AlShawaqfeh Jonathan A. Lidbury Jörg M. Steiner Jan S. Suchodolski 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2020,34(5):1853-1866
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Sarah E Boston DVM DVSc DACVS ACVS Founding Fellow of Surgical Oncology ACVS Founding Fellow of Oral & Maxillofacial Surgery Galina Hayes BVSc PhD DACVS DACVECC Sara A Colopy DVM PhD DACVS Katie C Kennedy DVM MS DACVS-SA ACVS Fellow of Surgical Oncology Owen T Skinner BVSc DECVS DACVS-SA ACVS Fellow of Surgical Oncology Matthew T Boylan BSc MVB Julia P Sumner BVSc MANZCVS DACVS-SA Jolle Kirpensteijn DVM PhD DACVS DECVS ACVS Founding Fellow of Surgical Oncology ACVS Founding Fellow of Minimally Invasive Surgery Frances M James MA VetMB DACVS-LA DECVS 《Veterinary surgery : VS》2020,49(5):879-883
137.
Maria Orfanoudaki Anja Hartmann Julia Mayr Flix L. Figueroa Julia Vega John West Ricardo Bermejo Christine Maggs Markus Ganzera 《Marine drugs》2021,19(6)
This study presents the validation of a high-performance liquid chromatography diode array detector (HPLC-DAD) method for the determination of different mycosporine-like amino acids (MAAs) in the red alga Bostrychia scorpioides. The investigated MAAs, named bostrychines, have only been found in this specific species so far. The developed HPLC-DAD method was successfully applied for the quantification of the major MAAs in Bostrychia scorpioides extracts, collected from four different countries in Europe showing only minor differences between the investigated samples. In the past, several Bostrychia spp. have been reported to include cryptic species, and in some cases such as B. calliptera, B. simpliciuscula, and B. moritziana, the polyphyly was supported by differences in their MAA composition. The uniformity in the MAA composition of the investigated B. scorpioides samples is in agreement with the reported monophyly of this Bostrychia sp. 相似文献
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Landscape Ecology - Agricultural intensification is contributing to a global species decline. Underlying mechanisms include toxic effects of pesticides on non-target organisms and reductions in... 相似文献
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