Autor: Farahani, A.S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Changes of antioxidant enzymes of mung bean [Vigna radiata (L.) R. Wilczek] in response to host and non-host bacterial pathogens
Autorzy:: Farahani, A.S.
Taghavi, M.
Powiązania:: https://bibliotekanauki.pl/articles/65764.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: antioxidative enzyme
enzyme
mung bean
Vigna radiata
plant response
host pathogen
non-host pathogen
resistance
bacterial pathogen
ascorbate peroxidase
catalase
peroxidase
superoxide dismutase
Opis:: The natural resistance against the majority of potential pathogens that exist in most plant species is known as non-host resistance. Several reports suggest the role of antioxidant enzymes in non-host resistance. We assayed the expression or activity of four scavenging enzymes during non-host pathogen-plant interaction (Xanthomonas hortorum pv. pelargonii/mung bean) and host pathogen-plant interaction (Xanthomonas axonopodis pv. phaseoli/mung bean). The expression of superoxide dismutase (SOD) and ascorbate peroxidase (APX) and the enzyme activity of catalase (CAT) and peroxidase (POX) were investigated. The activities of CAT and POX were higher during non-host pathogen invasion vs. host pathogen attack. The expression of SOD and APX were also different between compatible and incompatible interactions. The expression of SOD and APX were higher in the incompatible compared to the compatible interaction. Additionally, induction of the antioxidant enzymes in response to non-host pathogen was earlier than induction in response to host pathogen. Such information is important for plant breeders, and useful when looking for alternative control strategies as well.
Źródło:: Journal of Plant Protection Research; 2016, 56, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Sensitive and specific detection of Xanthomonas hortorum pv. pelargonii in geranium by real-time PCR
Autorzy:: Farahani, A.S.
Taghavi, S.M.
Powiązania:: https://bibliotekanauki.pl/articles/66354.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: detection
bacterial blight
Xanthomonas hortorum pv.pelargonii geranium
real-time polymerase chain reaction
pathogen
Botrytis cinerea
Puccinia pelargonii-zonalis
Pythium
Rhodococcus fascians
Ralstonia solanacearum
Opis:: Xanthomonas hortorum pv. pelargonii is the causal agent of bacterial blight of geranium. A specific and rapid real-time PCR assay for detecting the bacterium in plant was developed in this study. We compared sensitivity of conventional and real-time PCR for detection of the pathogen in inoculated plants. For application to disease management programs, PCR amplification must be able to detect latent infections of asymptomatic geraniums. Our results displayed that conventional PCR lacks sufficient sensitivity to be used as diagnostic tools for detection of X. hortorum pv. pelargonii in latent infections. On the other hand, real-time PCR is suitable method for detection of latent infection of the bacterium in planting materials and can be considered in management programs. The ability for accurate and reliable detection of X. hortorum pv. pelargonii in asymptomatic tissue is a significant step in setting up “pathogen free” certification programs for bacterial blight of geranium.
Źródło:: Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effects of bacterial populations, temperature and exogenous hydrogen peroxide on the induction of the hypersensitive response in Nicotiana tabacum against Xanthomonas perforans
Autorzy:: Farahani, A.S.
Taghavi, S.M.
Powiązania:: https://bibliotekanauki.pl/articles/65481.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bacteria population
temperature
catalase
hydrogen peroxide
hypersensitive response
Nicotiana tabacum
Xanthomonas perforans
Opis:: The objective of this study was to investigate the effects of inoculum concentration, plant post-inoculation incubation temperature and exogenous hydrogen peroxide (H2O2) on the induction of the hypersensitive response (HR) in Nicotiana tabacum against Xanthomonas perforans. Inoculation of leaves with X. perforans at a concentration of 108 CFU · ml–1 and incubation of plants at 30°C resulted in the strongest HR elicitation. Furthermore, an exogenous supply of H2O2 accelerated X. perforans-induced HR, whereas in planta H2O2 removal by application of catalase led to a delay in HR development. Our data suggest that H2O2 has an important role in HR of N. tabacum against X. perforans.
Źródło:: Journal of Plant Protection Research; 2017, 57, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: An adaptive control scheme for hyperbolic partial differential equation system (drilling system) with unknown coefficient
Autorzy:: Farahani, H. S.
Telabi, H. A.
Baghermenhaj, M.
Powiązania:: https://bibliotekanauki.pl/articles/229317.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: drilling systems
adaptive control
hyperbolic partial differential equations
wave equation
boundary control
Opis:: The adaptive boundary stabilization is investigated for a class of systems described by second-order hyperbolic PDEs with unknown coefficient. The proposed control scheme only utilizes measurement on top boundary and assume anti-damping dynamics on the opposite boundary which is the main feature of our work. To cope with the lack of full state measurements, we introduce Riemann variables which allow us reformulate the second-order in time hyperbolic PDE as a system with linear input-delay dynamics. Then, the infinite-dimensional time-delay tools are employed to design the controller. Simulation results which applied on mathematical model of drilling system are given to demonstrate the effectiveness of the proposed control approach.
Źródło:: Archives of Control Sciences; 2017, 27, 1; 63-76
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The evaluation and determination of heavy metals pollution in edible vegetables, water and soil in the south of Tehran province by GIS
Autorzy:: Shirkhanloo, H.
Mirzahosseini, S. A. H.
Shirkhanloo, N.
Moussavi-Najarkola, S. A.
Farahani, H.
Powiązania:: https://bibliotekanauki.pl/articles/204640.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heavy metals
environmental pollution
vegetables
agricultural soil
agricultural water
geographic information systems
GIS
Atomic Absorption Spectrometry
AAS
Opis:: In this study, heavy metals pollutions in waters, soils and vegetables were investigated from farms, near oil refinery in south of Tehran city, Iran (Shahre Ray). The most important heavy metals in Iranian oil are vanadium, cobalt, nickel, arsenic and mercury (V, Co, Ni, As, Hg). In this region, the concentration of heavy metals in soils, well waters and leafy edible vegetables were evaluated in ten different points of farms. Geographic information systems (GIS) were used to estimate the levels of heavy metals concentration at unmeasured locations. After sample preparation, concentrations of heavy metals in vegetables, soils and waters were determined by atomic absorption spectrometry (AAS). Five different leafy edible vegetables from farms, i.e., Persian leek, dill, parsley, spinach and radish were sampled in spring, summer and autumn 2012. In vegetables and well water samples, the concentrations of V, Ni and Co were above the permissible limit of heavy metals as compared to WHO guidelines and the concentrations of these metals in agricultural soils were found to be lower in accordance to soil references. The industrial waste waters had high concentration of heavy metals in this area. In consequence, the results of this study indicate that industrial waste water can cause pollution in well waters and edible vegetables. So, this region is not suitable for cultivation and growing vegetables.
Źródło:: Archives of Environmental Protection; 2015, 41, 2; 64-74
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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