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Wyszukujesz frazę "Smirnov, Alexey" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
High Genetic Diversity of Amoebae Belonging to the Genus Mayorella (Amoebozoa, Discosea, Dermamoebida) in Natural Habitats
Autorzy:
Glotova, Anna
Bondarenko, Natalya
Smirnov, Alexey
Powiązania:
https://bibliotekanauki.pl/articles/52159697.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Amoebozoa
Mayorella
diversity
phylogeny
systematics
Opis:
Amoebae of the genus Mayorella are widespread in marine, freshwater and soil habitats. These amoebae have relatively low number of morphological characters allowing species differentiation, so the number of valid species remains rather small. Representatives of the genus Mayorella are hard to maintain in culture, the very most of them are polyphagous and carnivorous. To live and multiply they require a variety of food objects, including other protists. Thus they are difficult objects for molecular studies. Only two sequences of Mayorella were available until recently in GenBank. For the present study we isolated eight strains of Mayorella from different locations worldwide, documented them with the light microscopy and obtained complete or partial sequences of their 18S rRNA gene. Results show that all members of the genus Mayorella form a robust clade within the order Dermamoebida (Amoebozoa: Discosea). The vast majority of our strains probably represent new species; this evidences that diversity of the genus Mayorella in natural habitats is high and that this genus is rather species-rich, comprising no less than 11 species. Our results show that nowadays sequence data are necessary for reliable identification of Mayorella species. 
Źródło:
Acta Protozoologica; 2018, 57, 1; 29-42
0065-1583
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A rapid method for evaluation of partial potato resistance to late blight and of aggressiveness of Phytophthora infestans isolates originating from different regions
Autorzy:
Filippov, Alexey V.
Gurevich, Boris I.
Kozlovsky, Boris E.
Kuznetsova, Maria A.
Rogozhin, Alexandr N.
Spiglazova, Svetlana Y.
Smetanina, Tatiana I.
Smirnov, Alexey N.
Powiązania:
https://bibliotekanauki.pl/articles/2198972.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
aggressiveness
late blight
mathematical model
potato cultivars
resistance
yield losses
Opis:
The procedure of evaluation is based on mathematical simulation model of the late blight (LB) development in combination with laboratory testing of detached leaflets artificially inoculated with Phytophthora infestans. An incubation period, amount and sizes of lesions and sporulation capacity are estimated. Each couple “tested Phytophthora isolate and tested potato cultivar” is compared with a standard couple “Phytophthora isolate N161 and standard cultivar”. A simulator on the base of these data calculates area under the curve for LB development and yield loss due to LB for a situation when a yield loss of a standard cultivar infected with a standard isolate is equal 35%. Comparison of a new rapid laboratory method and field methods showed satisfactory correlation. Resistance to late blight was evaluated for 47 potato cultivars with the new method. It was also shown that some variations in foliar aggressiveness existed among P. infestans populations from different regions. Supported by ISTC grant #1640.
Źródło:
Plant Breeding and Seed Science; 2004, 50; 29-41
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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