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Wyszukujesz frazę "Toxicity" wg kryterium: Temat


Tytuł:
Metabolic and tissular effects of artemisinin supplemented diets in broiler chicken
Autorzy:
Gyӧrke, A.
Pop, L.M.
Mircean, M.
Kalmár, Z.
Tăbăran, A.F.
Paștiu, A.I.
Dumitrache, M.O.
Magdaș, C.
Balea, A.
Bărburaș, D.
Mircean, V.
Cozma, V.
Powiązania:
https://bibliotekanauki.pl/articles/2087546.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
artemisinin
chickens
toxicity
biochemistry
histology
Źródło:
Polish Journal of Veterinary Sciences; 2019, 2; 297-304
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protective role of silibinin over nickel sulfate-induced reproductive toxicity in male rats
Autorzy:
Temamogullari, F.
Atessahin, A.
Cebi Sen, C.
Yumusak, N.
Dogru, M.S.
Powiązania:
https://bibliotekanauki.pl/articles/2087235.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nickel
silibinin
male
rats
reproductive toxicity
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 1; 29-34
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Ageratina adenophora on hepatic and pulmonic pathological lesions in horses
Autorzy:
Gu, X.L.
Dai, F.Y.
Xiao, X.
Li, G.Z.
Zhang, L.M.
Qu, W.J.
Powiązania:
https://bibliotekanauki.pl/articles/2087129.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ageratina adenophora
liver
lung
horse
toxicity
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 4; 611-613
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of EASEWASTE model for assessing environmental impacts from solid waste landfilling
Autorzy:
Alam, Asifa
Chaudhry, Muhammad Nawaz
Ahmad, Sajid Rashid
Batool, Aadila
Mahmood, Adeel
Al-Ghamdi, Huda Ahmad
Powiązania:
https://bibliotekanauki.pl/articles/2073793.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
EASEWASTE
risk assessment
dumping sites
gas emissions
toxicity
Opis:
Dumping sites or landfills are considered as foremost common option of waste management worldwide. Dumping sites, often not lined, represent a potential environmental issue causing a long-term risk to the environment and health. A number of computers model-based studies have described the solid waste collection and its management, but provide little information about the relative contributions regarding environmental impacts of landfilling especially in the context of developing world. The aim of study was to estimate environmental impacts from dumping site by using EASEWASTE model. A case study was carried out at an old and closed dumping site filled with mixed waste without bottom liner, no leachate collection and gas collection. On the basis of the existing dumping site investigation, a Mahmood Booti Dumping Site Scenario was developed, and related data of waste generation & composition was collected and added to assess environmental impacts. The results show that human toxicity via soil (9.14E+09 m3 soil) had the highest potential impact, followed by global warming (8.83E+11 Kg CO2-eq), eco-toxicity in water (6.25E+11 m3 water), and eco-toxicity in soil (6.54E+10 m3 soil). This is mostly caused by leaching of heavy metals from ashes (e.g. residues from roads cleaning and vacuum cleaning bags), batteries, paper and metals. The adopted risk analysis approach uses easily accessible computer aided models, for open dumping sites, appears to be a key tool to assist decision makers in establishing priorities for remediation action.
Źródło:
Archives of Environmental Protection; 2021, 47, 4; 84--92
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficacy of electrospun bionanofibers as fumigant pesticides in foodstuff storage
Autorzy:
Allahvaisi, Somaye
Talebi Jahromi, Khalil
Imani, Sohrab
Khanjani, Mohammad
Powiązania:
https://bibliotekanauki.pl/articles/961635.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fumigant toxicity
nanofi ber
persistence
plodia interpunctella
storage pests
Opis:
Essential oils as alternative synthetic pesticides for pest management of foodstuffs have recently received increased attention. Controlled and slow release formulations of essential oils are used to enhance their efficiency. Two volatile essential oils of Mentha piperita L. and Salvia officinalis L. were investigated for release rate and mortality percentage by fumigant toxicity against 1st instar larvae of Plodia interpunctella. Electrospinning was used to incorporate various concentrations of essential oils in nanofibers. Th e essential oils can be released from the nanofibers for long periods of time, from several days to several weeks. Poly(lactic acid) was used as a green polymer carrier and the essential oils were incorporated into the nanofi bers (8–15v/v% PLA). Insecticidal bioassay revealed that oil-loaded nanofibers (NFOs) were more toxic than pure essential oils (PEOs) against tested larvae. Th e LC50 and LT50 of NFOs were 1.2 and 4 times, respectively, more than PEOs. Our results indicated that PEOs completely lost their insecticidal activity after 14 days, whereas at the same period, NFOs had an average of 93% mortality when applied against P. interpunctella. Therefore, it can be concluded that nanofibers improved the persistence of the oil. This study presents S. officinalis has more toxicity and M. piperita had more persistence for controlling the larvae of indian meal moth.
Źródło:
Journal of Plant Protection Research; 2017, 57, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Royal jelly protection on flunixin meglumine-induced spermiotoxicity and testicular degeneration in mice
Autorzy:
Temamoğulları, F.
Aral, F.
Yılmaz, R.
Powiązania:
https://bibliotekanauki.pl/articles/2087694.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
flunixin meglumine
royal jelly
male mice
sperm
testes toxicity
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 3; 497-506
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of cadmium mycelial growth and morphology of chosen phylloplane fungi
Autorzy:
Remlein-Starosta, D.
Powiązania:
https://bibliotekanauki.pl/articles/66223.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phylloplane fungi
toxicity
plant protection
mycelium growth
cadmium
fungi
morphology
Źródło:
Journal of Plant Protection Research; 2003, 43, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological Characteristics of “Wartowice” Post-Flotation Tailings Pond (Lower Silesia, Poland)
Charakterystyka biologiczna zbiornika osadów poflotacyjnych „Wartowice”
Autorzy:
Rybak, J.
Kołwzan, B.
Grabas, K.
Pasternak, G.
Krawczyńska, M.
Powiązania:
https://bibliotekanauki.pl/articles/204732.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
flotation
copper
toxicity
phytosociology
reclamation
flotacja
miedź
toksyczność
fitosocjologia
regeneracja
Opis:
“Wartowice” tailings pond was closed in 1989, resulting in 232,4 ha tailings pile requiring reclamation. The major problem is heavy metals presence and poor nutrient conditions and physicochemical structure of soil which disturbs the plants development. In order to assess the real condition of studied area the complete biological characteristic has been done. The physicochemical conditions were assessed altogether with phytosociological, microbiological and toxicological studies of deposits. We recorded only 27 species of vascular plants belonging to 15 families on the tailings pond of which 5 belong to Rosaceae, 4 to Asteraceae and 3 to Poaceae and Saliceae. Species inhabiting the tailings depended on their dispersal capacity, metal tolerance and rhizome strategy. Microbiological analyses revealed the low number of bacteria and fungi on the tailings pond, apart from the small uplift area where the plants were indentified. Bacteria identified on the tailings pond were classified to 8 genera. The low number of bacteria suggests the lack of nutrients which affects the development of soil microflora. Toxicity tests showed that post-flotation sludge is not toxic to microorganisms because of its high pH. Some plants, such as lucerne could even influence positively the microorganisms development what has been proved in our studies. The tailings toxicity was higher towards producers, where Secale cereale appeared to be the most sensitive species. Amendment with topsoil from adjacent areas can influence positively the phytotoxic properties of tailings and enrich them into native seeds.
Osadnik po fl otacji miedzi „Wartowice” został zamknięty w 1989 roku, co skutkowało pozostawieniem 232,4 hektarów osadów, które wciąż wymagają rekultywacji. Podstawowy problem stanowią: niedobór substancji odżywczych, obecność metali ciężkich oraz fi zyczno-chemiczna struktura gleby, który zaburza rozwój roślin. Aby dokonać oceny czynników wpływających na rozwój organizmów żywych przeprowadzono kompleksową biologiczną charakterystykę terenu badań. Badania objęły fi zyczno-chemiczne analizy, badania fi tosocjologiczne, mikrobiologiczne i toksykologiczne. Na obszarze badań zarejestrowano tylko 27 gatunków roślin naczyniowych (obszar niewielkiego wzniesienia) należących do 15 rodzin, 5 z nich należało do rodziny Rosaceae, 4 do Asteraceae i po 3 do Poaceae i Saliceae. Obecność gatunków zależała od ich potencjału kolonizacji, tolerancji na metale oraz morfologii (strategia kłącza). Analizy mikrobiologiczne wykazały niską liczbę bakterii i grzybów na obszarze osadnika za wyjątkiem małej wysepki (wzniesienie) gdzie wcześniej stwierdzono obecność roślin. Bakterie obecne na obszarze badań zostały zaklasyfi kowane do 8 rodzajów. Niska liczba bakterii sugeruje brak substancji odżywczych, który z kolei upośledza rozwój mikrofl ory glebowej. Badania toksykologiczne wykazały niską toksyczność osadu w stosunku do mikroorganizmów, co wynika z jego zasadowego pH. Pewne gatunki, jak na przykład lucerna, mogą wpływać korzystnie na rozwój mikroorganizmów glebowych, co zademonstrowano w prezentowanych badaniach. Toksyczność odpadów po fl otacji miedzi była wyższa w stosunku do producentów. Żyto zwyczajne (Secale cereale) okazało się być najwrażliwszym gatunkiem. Zastosowanie wierzchniej warstwy gleby z obszarów przyległych mogłoby znacznie obniżyć fi totoksyczne własności odpadów i jednocześnie wzbogacić je w rodzime nasiona, które dałyby początek roślinom odpornym na niekorzystne warunki siedliskowe.
Źródło:
Archives of Environmental Protection; 2014, 40, 1; 71-86
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of environmental media on carbon nanotubes and graphene nanoplatelets towards bacterial toxicity
Autorzy:
Baysal, A.
Saygin, H.
Ustabasi, G. S.
Powiązania:
https://bibliotekanauki.pl/articles/204654.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-walled carbon nanotubes
environmental media
bacterial toxicity
Graphene
physicochemical properties
Opis:
Functional carbon-based nanomaterials have become important due to their unique combinations of chemical and physical properties, and also because of the increasing research efforts in various fi elds. A signifi cant gap in nanotechnology is the disregarding of physicochemical transformation under real conditions for the examination and comparison on the effect of carbon based nanomaterials. In this study, the behavior of some carbon based nanomaterials (multi-walled carbon nanotubes and graphene nanoplatelets) in environmental media (sea water, soil, and airborne fi ne particulate) were evaluated by using the infl uence on nanomaterial physicochemical properties (size, zeta potential, surface chemistry, morphology and sedimentation) and on the toxicity of bacterium (gram positive and gram negative bacteria) to contribute to their environmental hazard and risk assessment on the environment. The bacteria were exposed to the carbon based nanomaterials, and cultivated on nutrient agar plates including each environmental media, and then counted for the colony forming units. The physicochemical properties of the carbon based nanomaterials dispersed in these environmental media were also investigated. Our results indicated that the toxicity depended on the type of environmental media and their concentration, and the physicochemical properties of the carbon based nanomaterials changed when compared to the results obtained in controlled conditions.
Źródło:
Archives of Environmental Protection; 2018, 44, 3; 85-98
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation, characterization and toxicity of native Bacillus thuringiensis isolates from different hosts and habitats in Iran
Autorzy:
Ghassemi-Kahrizeh, A.
Khoramnezhad, A.
Talaei-Hassanloui, R.
Powiązania:
https://bibliotekanauki.pl/articles/65696.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
isolation
Bacillus thuringiensis
characteristics
isolate
toxicity
host
habitat
Plutella xylostella
virulence
Iran
Opis:
Bacillus thuringiensis is a Gram-positive, aerobic, facultative anaerobic and endosporeforming bacterium. Different strains of this species have the ability to produce parasporal crystalline inclusions which are toxic to larvae of different insect orders and other invertebrates and cause rapid death of the host. To determine the importance of this species in microbial control, we collected native strains and studied their virulence on the diamondback moth, Plutella xylostella. More than 148 samples were collected from Alborz, Guilan and Mazandaran Provinces. Experimental samples, including soil samples from forests, fruit gardens, agricultural fields, diseased and dead larvae, were transferred to a laboratory in sterile plastic containers. For evaluating B. thuringiensis isolates virulence, a cabbage leaf dip method with 106 cell ⋅ ml–1 concentration of various Bt isolates was applied to diamondback moths. Larval mortality was recorded 72 h after treatment. Based on bioassay results, all isolates were classified into three high, medium and low virulence groups. Protein level characterization based on the SDS-PAGE gel analysis showed that two isolates from a high virulence group have proteins of high molecular masses of 121 and 109 kDa. Results revealed that there is a positive correlation between protein masses and virulence of isolates. In addition, this research introduced nine strains that are highly toxic to P. xylostella and would be valuable as insecticidal agents for controlling lepidopteran pests.
Źródło:
Journal of Plant Protection Research; 2017, 57, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inorganic nanomaterials in the aquatic environment : behavior, toxicity, and interaction with environmental elements
Nanomateriały nieorganiczne w środowisku wodnym : zachowanie, toksyczność i interakcje z innymi elementami środowiska
Autorzy:
Krzyżewska, I.
Kyzioł-Komosińska, J.
Rosik-Dulewska, C.
Czupioł, J.
Antoszczyszyn-Szpicka, P.
Powiązania:
https://bibliotekanauki.pl/articles/204702.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nanomaterials
nanosilver
nanocopper
aquatic environmental
toxicity
pollution
nanomateriały
nanosrebra
nanomiedź
środowisko wodne
toksyczność
skażenie
Opis:
The aim of this paper is to present characteristics, toxicity and environmental behavior of nanoparticles (NPs) (silver, copper, gold, zinc oxide, titanium dioxide, iron oxide) that most frequently occur in consumer products. In addition, NPs are addressed as the new aquatic environmental pollutant of the 21st century. NPs are adsorbed onto particles in the aquatic systems (clay minerals, fulvic and humic acids), or they can adsorb environmental pollutants (heavy metal ions, organic compounds). Nanosilver (nAg) is released from consumer products into the aquatic environment. It can threaten aquatic organisms with high toxicity. Interestingly, copper nanoparticles (Cu-NPs) demonstrate higher toxicity to bacteria and aquatic microorganisms than those of nanosilver nAg. Their small size and reactivity can cause penetration into the tissues and interfere with the metabolic systems of living organisms and bacterial biogeochemical cycles. The behavior of NPs is not fully recognized. Nevertheless, it is known that NPs can agglomerate, bind with ions (chlorides, sulphates, phosphates) or organic compounds. They can also be bound or immobilized by slurry. The NPs behavior depends on process conditions, i.e. pH, ionic strength, temperature and presence of other chemical compounds. It is unknown how NPs behave in the aquatic environment. Therefore, the research on this problem should be carried out under different process conditions. As for the toxicity, it is important to understand where the differences in the research results come from. As NPs have an impact on not only aquatic organisms but also human health and life, it is necessary to recognize their toxic doses and know standards/regulations that determine the permissible concentrations of NPs in the environment.
Celem pracy jest charakterystyka, toksyczność oraz zachowanie w środowisku nanomateriałów (takich jak srebro, miedź, złoto, tlenek cynku, dwutlenek tytanu, tlenki żelaza), które występują najczęściej w produktach konsumenckich. Dodatkowo, nanomateriały określane są jako nowe zanieczyszczenia środowiska wodnego XXI wieku. Z jednej strony mogą być adsorbowane przez elementy środowiska wodnego (tj.minerały ilaste,kwasy-fulwowe i huminowe), z drugiej zaś to one stają się centrami adsorpcyjnymi zanieczyszczeń środowiskowych (tj. jony metali ciężkich, związki organiczne). Najbardziej rozpowszechnione nanosrebro jest uwalniane z produktów dostępnych na rynku do środowiska wodnego, co powoduje zagrożenie dla organizmów wodnych z powodu wysokiej toksyczności srebra. Nanomiedź natomiast jest uważana za jeden z najsilniejszych środków antybakteryjnych i przeciwgrzybicznych, nawet w porównaniu do nanosrebra. Nanocząstki charakteryzują się niewielkimi rozmiarami co pozwala im na wnikanie do żywych komórek, a także wysoką reaktywnością dzięki czemu mogą zakłócać metabolizm komórek oraz cykle geochemiczne bakterii. Nanomateriały ulegają aglomeracji, wiążą się zarówno z jonami jak i związkami organicznymi, mogą również zostać zatrzymane na powierzchni osadów a ich interakcje uzależnione są od warunków środowiska (pH, siła jonowa, temperatura, oraz obecność innych związków chemicznych). Niestety ich zachowanie w środowisku nie jest do końca poznane. Dlatego konieczne są badania nad zachowaniem się nanomateriałów w środowisku wodnym, ich toksyczności i interakcji z elementami środowiska wodnego. Zagrażając organizmom wodnym mogą one również negatywnie wpływać na zdrowie i życie ludzkie. Zasadne wydaje się zatem poznanie regulacji i praw które pozwolą na określenie dopuszczalnych stężeń nanocząstek w środowisku.
Źródło:
Archives of Environmental Protection; 2016, 42, 1; 87-101
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selective toxicity of diafenthiuron to non-target organisms: honey bees, coccinellids, chelonus, earthworms, silkworms and fish
Autorzy:
Stanley, J.
Chandrasekaran, S.
Preetha, G.
Kuttalam, S.
Jasmine, R.S.
Powiązania:
https://bibliotekanauki.pl/articles/66183.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
toxicity
diafenthiuron
insecticide
cardamom
cotton
pest
honey bee
Coccinellidae
Chelonus blackburni
earthworm
silkworm
fish
Opis:
Diafenthiuron, an insecticide widely used in the management of pests of cardamom and cotton, was assessed for its toxicityeffect on beneficials commonly found in these ecosystems. Diafenthiuron was found to be toxic to honey bees, the prime pollinators of crop plants. Diafenthiuron at the highest tested dose caused 40% mortality to the coccinelid grubs at 48 h after treatment so, diafenthiuron was found to be slightly harmful. Monocrotophos, on the other hand has been found to be a highly toxic pesticide. Diafenthiuron is moderately harmful to the adults of Chelonus blackburni L. The testing was done using the insecticide diafenthiuron. An insecticidecoated vial (scintillation) bioassay was performed. It was found that there was 86.67% mortality in 48 h, at the recommended dose. Diafenthiuron is highly toxic to the silkworm, killing more than 80% of the caterpillars in 24 h, at all the doses tested. Diafenthiuron, even in the highest dose tested, is non-toxic to the earthworm, Perionyx excavatus, which was found to have a 3.33% mortality. As far as fish are concerned, the common carp, Cyprinus carpio L., is found to be highly susceptible to diafenthiuron and even doses 10 times lower than the field dose can kill the fish within 6 h.
Źródło:
Journal of Plant Protection Research; 2016, 56, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Toxicity and physiological effect of essential oil of Artemisia annua (Labiatae) on Agriolimax agrestis L. (Stylommatophora: Limacidae)
Autorzy:
Amirmohammadi, F.
Sendi, J.J.
Zibaee, A.
Powiązania:
https://bibliotekanauki.pl/articles/66768.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
toxicity
physiological effect
essential oil
Artemisia annua
Labiatae
slug
Agriolimax agrestis
Stylommatophora
Limacidae
biochemical component
Opis:
Essential oil of Artemisia annua L. was investigated to find out its toxicity and physiological aspects on the slug Agriolimax agrestis, in controlled conditions (8±1°C, 75±5 RH and 14:10 LD). The slugs received different concentrations of essential oil treated radish leaves in methanol, while the control received methanol alone. LC10, LC30, LC50 and LC90 values were estimated at 4.67, 5.3, 5.81, 7.25%, respectively. The effect of the essential oil on some important enzymatic components like; cytochrome P450 monnooxygenase, acid phosphatase, alkaline phosphatase, lipase, amylase and protease were significantly increased compared to the control. These results indicate that the plant Artemisia annua L. not only shows toxicity but also shows some irreversible effect on some important biochemical components and deserves further investigation.
Źródło:
Journal of Plant Protection Research; 2012, 52, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical composition and insecticidal activity of essential oil from Ziziphora clinopodioides Lam. used against the Mediterranean flour moth, Ephestia kuehniella Zeller
Autorzy:
Kheirkhah, M.
Ghasemi, V.
Yazdi, A.K.
Rahban, S.
Powiązania:
https://bibliotekanauki.pl/articles/65335.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chemical composition
insecticide activity
essential oil
Ziziphora clinopodioides
Lamiaceae
Mediterranean flour moth
Ephestia kuehniella
fumigant toxicity
Opis:
The Mediterranean flour moth, Ephestia kuehniella Zeller, is a major pest of stored grain products, particularly flour. There have been major concerns over the application of conventional insecticides in stored products, which have strongly demonstrated the need for applying such alternative safe compounds as essential oils. The aim of the present study is to investigate the chemical composition and fumigant toxicity of essential oil from Ziziphora clinopodioides Lam. against the eggs, larvae, and adults of E. kuehniella. All toxicity tests were carried out under laboratory conditions set at 26±1°C and 70% relative humidity (RH). The results of gas chromatography- -mass spectrometry (GC/MS) analysis indicated that the essential oil extracted from the leaves of Z. clinopodioides, is rich in pulegone (49.4%), piperitenone (10.7%), menthone (8.9%), and 1,8-cineol (6.9%). Based on the bioassay results, the LC50 value of the tested oil was estimated to be 54.61 μl · l–1 air for larvae and 1.39 μl · l–1 air for adults. Also, it is shown that increasing the oil concentration resulted in a significant increase in oviposition deterrency as well as a considerable reduction in the egg hatching percentage. These results suggest that Z. clinopodioides oil could be a potential candidate as a fumigant for managing E. kuehniella in stored products.
Źródło:
Journal of Plant Protection Research; 2015, 55, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fenton reagent and titanium dioxide nanoparticles as antifungal agents to control leaf spot of sugar beet under field conditions
Autorzy:
Hamza, A.
El-Mogazy, S.
Derbalah, A.
Powiązania:
https://bibliotekanauki.pl/articles/65947.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Fenton's reagent
titanium dioxide
nanoparticle
antifungal agent
disease control
leaf spot
sugar-beet
field condition
toxicity
Opis:
In this study, foliar sprays of Fenton solutions (Fenton reaction, Fenton-like reaction and Fenton complex), titanium dioxide (TiO2) and the recommended fungicide (chlorothalonil) were estimated in the control of sugar beet leaf spot caused by Cercospora beticola under field conditions in two growing seasons. In addition, the impacts of these treatments on some crop characters (leaf dry weight, root fresh weight, soluble solid content, sucrose content and purity of sugar) were examined. Biochemical and histological changes in the livers and kidneys of treated rats compared to an untreated control were utilized to assess the toxicity of the examined curative agents. Overall, chlorothalonil and Fenton complex were the most effective treatments for disease suppression in both tested seasons followed by Fenton-like reagent, Fenton’s reagent and TiO2, respectively. Growth and yield characters of treated sugar beet significantly increased in comparison to an untreated control. There were mild or no (biochemical and histological) changes in the livers and kidneys of treated rats compared to the control. Fenton solutions and TiO2 may offer a new alternative for leaf spot control in sugar beet.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł

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