Zastosowanie metod biologii molekularnej do identyfikacji grzybów zasiedlających martwe drewno sosny zwyczajnej (Pinus Sylvestris L.)

2018 ◽  
Vol XI ◽  
pp. 11-20
Author(s):  
Jolanta Behnke-Borowczyk ◽  
Justyna Cichoń ◽  
Daria Wołowska ◽  
Maciej Hałuszczak ◽  
Marlena Baranowska-Wasilewska

The aim of this study was to evaluate the biodiversity of fungi, found in the dead wood of pine. The material for the study was divided into three individual stages of wood decomposition. The analysed wood samples were obtained from two areas in managed forest and protected area. Fungal communities were selected using a molecular method, which based on polymerase chain reaction (PCR), cloned and sequenced by Sangar. The results have shown that the species composition of fungi communities was varied, depending on the stage of wood decomposition. The most numerous was phylum Ascomycota.

1997 ◽  
Vol 7 (3) ◽  
pp. 283-286 ◽  
Author(s):  
Michael Double ◽  
Penny Olsen

In 1986 a single Norfolk Island Boobook Owl Ninox novaeseelandiae undulata remained. As part of a re-establishment programme, two male New Zealand Moreporks N. n. novaeseelandiae were introduced, one of which survived to pair with the female in the wild and breed successfully. By 1995 the population numbered 12 or 13 individuals of which seven were second generation (F2). However, there were only two breeding pairs. As the 11 hybrids could not be sexed using morphometrics we developed a molecular method based on a recently described avian polymerase chain reaction (PCR)-based sexing technique. The population was found to contain six females and five males. A scarcity of mature males was established as the main factor slowing the recovery effort.


2019 ◽  
Vol 7 (1) ◽  
pp. 1 ◽  
Author(s):  
Bushra K. Amin ◽  
Khulod I. Hassan

Brucellosis is a reemerging infectious zoonotic disease of worldwide importance. In the Kurdistan Region of Iraq, it is a widely spread disease and remains a challenging health problem. This disease is mainly caused by Brucella melitensis, in human. For confirmation of these isolates, a study was performed, by isolation and molecular typing of Brucella Spp. from human patients in Rizgari Hospital at Erbil city (Iraq), between March 2014 and November 2016. One hundred sixty seven samples of blood collected from patients suspected for brucellosis, one hundred twenty one samples from these were recorded as genus of Brucella, using biochemical test and confirmed by applying polymerase chain reaction (PCR), using genus specific primer for omp31 gene which was specific for B. melitensis. These results support using molecular method that based on PCR as diagnostic test for the control of brucellosis in Erbil. Further studies are needed from different geographical areas of the country with different level of endemicity to plan and execute control strategies against human brucellosis.


2013 ◽  
Vol 12 (2) ◽  
pp. 81
Author(s):  
N. A. Al- Anbagi

This study was conducted to collect 388 milk samples from cows at different villages and townships in Al-Najaf province to examine about Staphylococcus aureus mastitis .CMT was used for subclinical mastitis screening ,212(54.6%) milk samples were mastitic .The molecular method (PCR assay) was used to detected the presence (glpF) gene in classically diagnosed S.aureus, which appeared that 38(92.6%) S.aureus mastitis as 13(32.5%) clinical and 25(14.5%) subclinical mastitis .There was high significant incidence of Staphylococcus aureus mastitis in left posterior udder quarter rather than others quarters


1998 ◽  
Vol 122 (1-5) ◽  
pp. 461-464 ◽  
Author(s):  
J. I. Shililu ◽  
W. A. Maier ◽  
H. M. Seitz ◽  
S. S. Kubasu ◽  
A. S. Orago

2021 ◽  
pp. 12-14
Author(s):  
Николай Анатольевич Жижин

Идентификация пищевого сырья, применяемого для производства продуктов питания, является важным аспектом безопасности здоровья человека. Развитие аллергических реакций, непереносимость отдельных компонентов пищи и т. д. являются поводом для вынесения информации о составе пищевой продукции на этикеточную надпись. Также к важным факторам оценки продуктов питания можно отнести и видовую «чистоту». Этот показатель необходимо учитывать не только в качестве выявления фальсификации продукции более дешевым сырьем, но и для безопасности конечного потребителя. Для идентификации видового состава молока и молочной продукции достаточно успешно используется метод полимеразной цепной реакции. Развитие этого метода привело к появлению различных подходов его использования. Одним из них является метод мультиплексной полимеразной реакции, который позволяет одновременно проводить процесс амплификации различных последовательностей ДНК. Что позволяет использовать данный метод для одновременного определения двух и более видов сельскохозяйственных животных в течение проведения одного ПЦР-анализа. В данной работе показаны возможности применения мультиплексной ПЦР для идентификации молока и молочной продукции. Показано, что в течение одного анализа определяются специфические праймеры, характерные для трех видов животных: коровы, овцы и козы. Применяемая методика также была использована на молочной продукции, прошедшей термическую обработку, в результате чего установлена возможность использования мультиплексной ПЦР для анализа такой продукции. Предел обнаружения при проведении ПЦР-анализа составил 0,1 %. The identification of food raw materials used for food production is an important aspect of human health safety. Development of allergic reactions, intolerance to certain food components, etc. are the reason for placing information on the composition of food products on the label inscription. Species «purity» can also be attributed to the important factors in assessing food products. This indicator must be taken into account not only as a detection of product counterfeiting with cheaper raw materials, but also for the safety of the end consumer. To identify the species composition of milk and dairy products, the method of polymerase chain reaction is quite successfully used. The development of this method has led to the emergence of various approaches to its use. One of which is the multiplex polymerase reaction method, which allows simultaneous amplification of various DNA sequences. That allows you to use this method for the simultaneous determination of two or more species of farm animals during one PCR analysis. In this work, the possibilities of using multiplex PCR for the identification of milk and dairy products were shown. It was shown that during one analysis, specific primers characteristic of three species of animals: cow, sheep and goat are determined. The applied technique was also used on heat-treated dairy products, as a result of which the possibility of using multiplex PCR for the analysis of such products was established. The detection limit for PCR analysis was 0.1 %.


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